From patchwork Wed Mar 14 18:19:54 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131711 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157074ljb; Wed, 14 Mar 2018 11:22:38 -0700 (PDT) X-Google-Smtp-Source: AG47ELsy58toJAbw/286rafDrni7btG9A69iFCP0QDpE8O69YM1uzBFsNsvEkx4TfK313A/BZgea X-Received: by 10.107.97.17 with SMTP id v17mr5807809iob.256.1521051758046; Wed, 14 Mar 2018 11:22:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051758; cv=none; d=google.com; s=arc-20160816; b=oLvteGTDoqBaje7J5UgB8xyON7iPZp4BnNw42aln31qDifevcte3KDVhA7HDirkZdO Nfy0EJfKjaTzDNqM6iHDuNGlZASV4eSewDGz+luoP25t+JZtXkQ6Mp1+J2/OhvBgZUuE XLaR4iseZjqo4xmE35axSjWarsUQ5V7/OstFAQRnm2RNP6BoqBOxTRWxsR85SRNnIqwr X2Imyuri3kSHxH7f0Rj6U/pGgEsMvHA3Mn1BZgTommDkqgbNcOsrHJOJeeg5jxxhEYmx IEJ5Nbzgv2qBY0Hv5g4U72FTIYEthXiKD16bvcpzuejlYuFMBvWGtUosBq7+mi5tfpzf zTig== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=2Mw6kjphbqr7JTTPZUiFHKKsA2abioDNRyqMvpNJPqE=; b=h+PGemNL1Bdd2OxwIASMS+l83JF0QIXk47VYr+bvAeHcv+5GXuEa2s9m1o2wEGmOMz g2g9t/dfAupZA30ejj8DRRpW2c0MZZoYz8zLx66rB/g3+qlO2BO9MuXIuqzimbjuZSAm UPYnPMmTMPvZb/PPv0/uDze5vmpqdUlDsN9NoilbAUg8dpxT0cSQhj0NRDbPG8uEusi/ K50BFwt8riQPYmCdYWfDi7wxoHbJV7Wv2WUp/BU6mGRuWDU3g3+0F0x3lm5PuUftj30N HnKRKU3B4VAqNCRhzbWbAnV0Ah5ix3RtrwmK2E0U6cSDU4DBYVmQPv1F3FQci3YGzwLe Ufyg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id o19si1976605iod.55.2018.03.14.11.22.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:38 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0k-0006mt-9s; Wed, 14 Mar 2018 18:20:26 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0i-0006kN-Ro for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:24 +0000 X-Inumbo-ID: 5dfa2f79-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 5dfa2f79-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:26 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A323E15AB; Wed, 14 Mar 2018 11:20:18 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0AB903F53D; Wed, 14 Mar 2018 11:20:17 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:19:54 +0000 Message-Id: <20180314182009.14274-2-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Wei Liu Subject: [Xen-devel] [PATCH v5 01/16] x86/mm: skip incrementing mfn if it is not a valid mfn X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Wei Liu The function is called to fill in page table entries in populate_pt_range. Skip incrementing mfn if it is invalid. Signed-off-by: Wei Liu Reviewed-by: Jan Beulich --- Changes in v5: - Patch added --- xen/arch/x86/mm.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index 9b559448a7..5f5577c7c2 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -4731,7 +4731,8 @@ int map_pages_to_xen( } virt += 1UL << L3_PAGETABLE_SHIFT; - mfn += 1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT); + if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) + mfn += 1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT); nr_mfns -= 1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT); continue; } @@ -4756,7 +4757,8 @@ int map_pages_to_xen( if ( i > nr_mfns ) i = nr_mfns; virt += i << PAGE_SHIFT; - mfn += i; + if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) + mfn += i; nr_mfns -= i; continue; } @@ -4824,7 +4826,8 @@ int map_pages_to_xen( } virt += 1UL << L2_PAGETABLE_SHIFT; - mfn += 1UL << PAGETABLE_ORDER; + if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) + mfn += 1UL << PAGETABLE_ORDER; nr_mfns -= 1UL << PAGETABLE_ORDER; } else @@ -4853,7 +4856,8 @@ int map_pages_to_xen( if ( i > nr_mfns ) i = nr_mfns; virt += i << L1_PAGETABLE_SHIFT; - mfn += i; + if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) + mfn += i; nr_mfns -= i; goto check_l3; } @@ -4898,7 +4902,8 @@ int map_pages_to_xen( } virt += 1UL << L1_PAGETABLE_SHIFT; - mfn += 1UL; + if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) + mfn += 1UL; nr_mfns -= 1UL; if ( (flags == PAGE_HYPERVISOR) && From patchwork Wed Mar 14 18:19:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131707 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp156956ljb; Wed, 14 Mar 2018 11:22:32 -0700 (PDT) X-Google-Smtp-Source: AG47ELtaswnfmUASOnzf2EXmC6mebRnvf3KwalSAl4TLS5rQ+60beTJqZiFFcgE15FYO1z9y47js X-Received: by 2002:a24:3a95:: with SMTP id m143-v6mr3189488itm.128.1521051752138; Wed, 14 Mar 2018 11:22:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051752; cv=none; d=google.com; s=arc-20160816; b=zpVDISYkWl+OtbWRk6jH0XlpDwfS5jJ9iwqF3DnqUTVqN7GNvj/RfdbTloo7iGYOyV AgMjW2A/W7AukopluljvaDzBVwNFxst8180QB8QXwNKyzuKzwqbXFT0D5rYkzGomY048 bxQ0ATzOmWMLOIaU280gZOxOZ9OatpZRwUmuqI0MgMAcmKS0uO9y8LqYhR6iUqHup1x7 QOxtWTo9lpKgv09Qtj/OetAKmS+BWXc3qUrmat2o1x96tdci8LSWUatKvSz/cxTLe6er XK6BFPqTVeWQdcTjmhD9RMX/DGUoazixqnbLTOKzwdBJrcSHBlRkWV8ab/mFZJqDNneq 24CQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=r9PQaGiGGeMA9FgWMLOM3A/MCHSBaOSj7kImdE9/Szw=; b=aw1ZGgGTjKIBsOnXwCxwPGRfZYJ/B8N648uCETRfymtXdgkstvnw+prZD4vgAiusof xE3/nyWMAO/4Zjl+lZsyPxn24LA1W+nU65q+Y1pVWl3WlrJPx1ppudJo7TvairfVWS4Q rtLGVFPYyPbnRCx3yNm0AId7ApyD4qaTXvRJl/se6oaFVEoJdy7EbXXZ8rTgWxP5edWg WVNGijb+6lDXAZ3KQyLizH+SvDJIZpCF8vfS/pBnQXwppkg80594Gqr1i79WN46zgiy0 CdvgVQGmUKfXXwXKQAyeG4FH3Yt33ikXbQhop+o9Mbt2V03Xhjxd2toIbQ2ZkCtHExm6 Z2sA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id f134si1191020itb.164.2018.03.14.11.22.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0l-0006ni-IM; Wed, 14 Mar 2018 18:20:27 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0j-0006kY-KN for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:25 +0000 X-Inumbo-ID: 5e948faa-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 5e948faa-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:27 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A89C515AB; Wed, 14 Mar 2018 11:20:19 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E12BE3F53D; Wed, 14 Mar 2018 11:20:18 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:19:55 +0000 Message-Id: <20180314182009.14274-3-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Julien Grall , Stefano Stabellini Subject: [Xen-devel] [PATCH v5 02/16] xen/arm: setup: use maddr_to_mfn rather than _mfn(paddr_to_pfn(...)) X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall The construction _mfn(paddr_to_pfn(...)) can be simplified by using maddr_to_mfn. Signed-off-by: Julien Grall Reviewed-by: George Dunlap --- Cc: Stefano Stabellini Changes in v4: - Patch added --- xen/arch/arm/setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c index 462736633b..9e1450b7d4 100644 --- a/xen/arch/arm/setup.c +++ b/xen/arch/arm/setup.c @@ -268,8 +268,8 @@ void __init discard_initial_modules(void) if ( mi->module[i].kind == BOOTMOD_XEN ) continue; - if ( !mfn_valid(_mfn(paddr_to_pfn(s))) || - !mfn_valid(_mfn(paddr_to_pfn(e)))) + if ( !mfn_valid(maddr_to_mfn(s)) || + !mfn_valid(maddr_to_mfn(e)) ) continue; dt_unreserved_regions(s, e, init_domheap_pages, 0); From patchwork Wed Mar 14 18:19:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131708 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp156967ljb; Wed, 14 Mar 2018 11:22:32 -0700 (PDT) X-Google-Smtp-Source: AG47ELsTp6I3Ewz6YZqn+aHVuy+aM72dsE2IQWWWou4Md/Ei/yZHCfgyWEmieVGb2QKykfZi2sn/ X-Received: by 10.36.253.204 with SMTP id m195mr3263353ith.151.1521051752668; Wed, 14 Mar 2018 11:22:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051752; cv=none; d=google.com; s=arc-20160816; b=QbQZHMWSFrA6TbnA7mFXpeNYSTVVedi8s3dtBEv704oT6UWXIrnO2qzMLygwCEC5Qv YNUpY8L41/lQtMZNS4e+zofJiBVBjHFb951Cma+3PkguQKvgWd29jdwgC5+xfy5ge4Md FBXFe1bpk8rN9k6XR5IN6BVG+llSvUu9Gl2yUNw1QlX2karvzxN1C+GwHO+TB8ENGDep 9NM60SFLl3o6zHO3FT5umutM661BwgX8+F045lzMhD0yepad71xMlzXZcFVsytvsB8iz ska4/z8nG+6yDdXP0E0KgA31KcRWv1s8EckbG7jGtZPmacJxie/h9zGrVS/7HuMER/5F lPhg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=m559Ve80Wq9QdNCr91kmUvzF5ysqxDp+1sSOixYLrDs=; b=b3XF9R4jnoDaV/aIvZQQas7n9QAwQoMnUTmRcO35XkKUGR4gqSWEkyWkF97tlQZTsR VQgsMUdYF9lZjYQI0C+fUV20KwVAbMVdy49ApH2pV86SAt2Whx0Xls59pO1vDd6TY2R9 rNY0rCQzts9qNLpqyV8mRsAv/1vA6K8feZUY6issRcUiCF43+zrs19tGUAX1RKaKCizV VSjYSaJ7t7eTYhl9hsUYyhgDYw2yzkZmZid82Ao6CZmRFvqN65NNP150MjncPyx6W+WC X90vweIZ81AMIOl3Lj7aeap/gGP5Sr1vA1sx43dG99ma8A4exUWLXYMNDw4dau27Qy93 Rt3w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id h184si2056739ioe.96.2018.03.14.11.22.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0h-0006lK-2F; Wed, 14 Mar 2018 18:20:23 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0f-0006kb-LD for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:21 +0000 X-Inumbo-ID: 58b30988-27b4-11e8-9728-bc764e045a96 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTP id 58b30988-27b4-11e8-9728-bc764e045a96; Wed, 14 Mar 2018 19:20:17 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AE4BF15BE; Wed, 14 Mar 2018 11:20:20 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E6C2B3F53D; Wed, 14 Mar 2018 11:20:19 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:19:56 +0000 Message-Id: <20180314182009.14274-4-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Julien Grall , Stefano Stabellini Subject: [Xen-devel] [PATCH v5 03/16] xen/arm: mm: Use gaddr_to_gfn rather than _gfn(paddr_to_pfn(...)) X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall The construction _gfn(paddr_to_pfn(...)) can be simplified by using gaddr_to_gfn. Signed-off-by: Julien Grall Reviewed-by: George Dunlap --- Cc: Stefano Stabellini Changes in v4: - Patch added --- xen/arch/arm/mm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index 3c328e2df5..9b77ab5f33 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -1436,7 +1436,7 @@ int create_grant_host_mapping(unsigned long addr, unsigned long frame, if ( flags & GNTMAP_readonly ) t = p2m_grant_map_ro; - rc = guest_physmap_add_entry(current->domain, _gfn(addr >> PAGE_SHIFT), + rc = guest_physmap_add_entry(current->domain, gaddr_to_gfn(addr), _mfn(frame), 0, t); if ( rc ) @@ -1448,7 +1448,7 @@ int create_grant_host_mapping(unsigned long addr, unsigned long frame, int replace_grant_host_mapping(unsigned long addr, unsigned long mfn, unsigned long new_addr, unsigned int flags) { - gfn_t gfn = _gfn(addr >> PAGE_SHIFT); + gfn_t gfn = gaddr_to_gfn(addr); struct domain *d = current->domain; int rc; From patchwork Wed Mar 14 18:19:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131709 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp156986ljb; Wed, 14 Mar 2018 11:22:34 -0700 (PDT) X-Google-Smtp-Source: AG47ELsol6NYjtvgb76Zbca3XxApzRmUff6bh0cH1IJcucgE0Htmrt7Zqq3a3LK+SR+B+rt19hUn X-Received: by 2002:a24:11d2:: with SMTP id 201-v6mr3029552itf.73.1521051754065; Wed, 14 Mar 2018 11:22:34 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051754; cv=none; d=google.com; s=arc-20160816; b=g6Kw6tt4sM13l3DdxgJ1GQIewotZV/W0m1v9EN3/ebu5JzaMJ6qrgOdrAwvGmD1qzw AkDDspGgCnU+n+OsluW6GIuT0DgWcKHyfVxctzRzcjL9L+5WY9rjXY87OwLmZhHxK+F7 t4wC2fiNC0Ob4hxIylOwcv3a2/ey83HqddWgBposYeyjGGEkL66/IS5HZ1ef+G7RZ2j+ tVA4S0VpW4hUir8+Ob68URjFXrWMo0sgXQijuL26+CL5K2B5rK4RnO31nU5CAu54QQnH CN/ucz4If6lhLcglkhdentJ6TOnMP4uEmQISXytEtWqGBEfigaZ64pfpAtnj2xlp6aJx /X8w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=ADjlmQVBJSL05RsI3zhRVthRv2ZN6nr65kOpyWN9vz0=; b=Os0jY93bxxpyCl01Fdw0rji3EQfEhpOkGN3j/iFgpx5hacNhch409pINrmxb7GJJoV ApO9UHNCbHnztPCX2flcU1wkEsrfypWEEiWI5gXaW6qAqyAgWJKIMaby2/ll0QXwiiTZ DB/jktP2dH0QlowZFikRm1iX0TiBazlgbaC98aPbIEw41l/9U0ks8qkKeUrLQhIoZqys /iUvmGOIhTxhSHNY4MW0ho1xg3+J+vJVGDaCUvbzYt/WNooZnzRtmIEFRfVVFv3sb183 2tEzBu8vCdj/Z/2iwViYm+JXYws9WZcZHa1jDQsr6RfDqA5omE4hdXCXotmnMnEBpVLb rHxg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id v98si2017874ioi.104.2018.03.14.11.22.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:34 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0n-0006py-7C; Wed, 14 Mar 2018 18:20:29 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0l-0006lA-Kl for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:27 +0000 X-Inumbo-ID: 5fcd4d2e-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 5fcd4d2e-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:29 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B405615AB; Wed, 14 Mar 2018 11:20:21 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EC8B03F53D; Wed, 14 Mar 2018 11:20:20 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:19:57 +0000 Message-Id: <20180314182009.14274-5-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Julien Grall , Stefano Stabellini Subject: [Xen-devel] [PATCH v5 04/16] xen/arm: mm: Remove unused M2P code X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall Arm does not have an M2P and very unlikely to get one in the future, therefore don't keep defines that are not necessary in the common code. At the same time move the remaining M2P define just above just above set_gpfn_from_mfn to keep all the dummy helpers for M2P together. Signed-off-by: Julien Grall Reviewed-by: George Dunlap --- Cc: Stefano Stabellini Changes in v4: - Patch added. --- xen/include/asm-arm/mm.h | 25 ++++--------------------- 1 file changed, 4 insertions(+), 21 deletions(-) diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h index 4d5563b0ce..c03f4ad674 100644 --- a/xen/include/asm-arm/mm.h +++ b/xen/include/asm-arm/mm.h @@ -320,33 +320,16 @@ static inline void *page_to_virt(const struct page_info *pg) struct page_info *get_page_from_gva(struct vcpu *v, vaddr_t va, unsigned long flags); -/* - * The MPT (machine->physical mapping table) is an array of word-sized - * values, indexed on machine frame number. It is expected that guest OSes - * will use it to store a "physical" frame number to give the appearance of - * contiguous (or near contiguous) physical memory. - */ -#undef machine_to_phys_mapping -#define machine_to_phys_mapping ((unsigned long *)RDWR_MPT_VIRT_START) -#define INVALID_M2P_ENTRY (~0UL) -#define VALID_M2P(_e) (!((_e) & (1UL<<(BITS_PER_LONG-1)))) -#define SHARED_M2P_ENTRY (~0UL - 1UL) -#define SHARED_M2P(_e) ((_e) == SHARED_M2P_ENTRY) - -#define _set_gpfn_from_mfn(mfn, pfn) ({ \ - struct domain *d = page_get_owner(__mfn_to_page(mfn)); \ - if(d && (d == dom_cow)) \ - machine_to_phys_mapping[(mfn)] = SHARED_M2P_ENTRY; \ - else \ - machine_to_phys_mapping[(mfn)] = (pfn); \ - }) - static inline void put_gfn(struct domain *d, unsigned long gfn) {} static inline int relinquish_shared_pages(struct domain *d) { return 0; } +#define INVALID_M2P_ENTRY (~0UL) +#define SHARED_M2P_ENTRY (~0UL - 1UL) +#define SHARED_M2P(_e) ((_e) == SHARED_M2P_ENTRY) + /* Xen always owns P2M on ARM */ #define set_gpfn_from_mfn(mfn, pfn) do { (void) (mfn), (void)(pfn); } while (0) #define mfn_to_gmfn(_d, mfn) (mfn) From patchwork Wed Mar 14 18:19:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131723 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp160818ljb; Wed, 14 Mar 2018 11:26:35 -0700 (PDT) X-Google-Smtp-Source: AG47ELtMT82YsVJGufYRgYUgR6Nfqm3A+TlajA46kWUI9g/cmMPkLaH9w3RVNUxMMjz4MSb8lJDh X-Received: by 10.107.137.98 with SMTP id l95mr5963051iod.179.1521051995784; Wed, 14 Mar 2018 11:26:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051995; cv=none; d=google.com; s=arc-20160816; b=FrZYU/QBdvcxEL22uxgf0wCTQ4U+RuzU6H5bS5CS5LwbTTncZJQZ4HFekXNMZX6ych A76iRcNGJb96QEkB0VQc30Y9ehq69SB6VQQA8ly2rMYaJlVFgfgQEJc97Aae1prMxRAu UF2isr5yYGxpgPtuptUZKmUhqM4yXBwi71azd2MohQFv03h9nAnd0qzm83OHABxsp+dg qQBY9CajXYUBGGpcVTaf5f80ukkD+KU+3E82VIpBRaJrRxiFt+cFlRHLTHYjvrjXujs8 r+jUFRtTEtiJov6QPLmFu0kZgRZi0lkTYjt5KRYk9S3LiUWdH/4P37uWV3lbU1pbswLS 5jZw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=ZCCkLbCiLG/Odp4FrhNlUGzf6hLEkbHj0cAB+XJr8rE=; b=psDepfatip9HzvMF4ihtJWBTS5ZDYorUDnNXk5v+pZgHp14Ff4ISycy4rHbDG4/gNq VLh2Pd3tnXNFWpzHzPIiqCG6Qz6b+reXN6tMRyZNhZk5oCwS+mXcscuHtIs9bixELPwM jXFd/0Tz+koJhztJE2z5IV/Qa3CgCIWWHWTDeWgJsBg9SDGhWJ0Kis7lalSnMAjdBhdk O6gWVoD72Hmw1PgzUXH4db8+jSx3DjhlL6Ejs9p6ey3eqI7kDv4g4g9uSvd0tptkEI2e bGxT5sL1Grk79CPiOO9zIBBb/bS/bio+YUM06jpukHmaPMW3zCIkAXtf0V2vf6SSXTgV fvLg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id k128-v6si1189836ith.170.2018.03.14.11.26.35 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:26:35 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB5D-0000VW-OK; Wed, 14 Mar 2018 18:25:03 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB5C-0000Uq-LH for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:25:02 +0000 X-Inumbo-ID: 6068f3c4-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 6068f3c4-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:30 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B9A3A164F; Wed, 14 Mar 2018 11:20:22 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id F232F3F53D; Wed, 14 Mar 2018 11:20:21 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:19:58 +0000 Message-Id: <20180314182009.14274-6-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Julien Grall , Stefano Stabellini Subject: [Xen-devel] [PATCH v5 05/16] xen/arm: mm: Remove unused relinquish_shared_pages X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall relinquish_shared_pages is never called on Arm. Signed-off-by: Julien Grall Reviewed-by: George Dunlap --- Cc: Stefano Stabellini Changes in v4: - Patch added --- xen/include/asm-arm/mm.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h index c03f4ad674..7678e29c15 100644 --- a/xen/include/asm-arm/mm.h +++ b/xen/include/asm-arm/mm.h @@ -321,10 +321,6 @@ struct page_info *get_page_from_gva(struct vcpu *v, vaddr_t va, unsigned long flags); static inline void put_gfn(struct domain *d, unsigned long gfn) {} -static inline int relinquish_shared_pages(struct domain *d) -{ - return 0; -} #define INVALID_M2P_ENTRY (~0UL) #define SHARED_M2P_ENTRY (~0UL - 1UL) From patchwork Wed Mar 14 18:19:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131712 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157087ljb; Wed, 14 Mar 2018 11:22:39 -0700 (PDT) X-Google-Smtp-Source: AG47ELvTxemknsO9nA58uXxi3DOiCc8G+qgSPtfuqboLNYKMgItH2pyX98nq+G5JIAORK41hXB+j X-Received: by 10.107.10.219 with SMTP id 88mr6143912iok.259.1521051759194; Wed, 14 Mar 2018 11:22:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051759; cv=none; d=google.com; s=arc-20160816; b=HXYXwXhSlv7SYXvcmq1fAIiKOf0j5JKSpqMxqCfBbmMOvSEb4ipw7Ok9KjvZaddzli K6E7CHsPyh6AIxiNqCSt+hwTetCv+yluckYrCRhWTf54o3J20SNCl0aosP+0J3G009uA bWUrpWRWPHMYzQrkHmSZvzGqqqIjs7Rz6uOOnQQz4UhzOTvNkwXJDCh91SH+CEjgls3S Szo+YOJsOmTDpk1+KYmv5fVsnItYOVii7RKux09Wu5XnBdNTReNm2BZLmJNoXWC0KXwZ Y99hgf21BigF2ST5XK6M97cy+wKvfkbIxTg1AQSV3CZxiWvwaCUsOLoyibuxBTJMVpUz mcKg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=w7XIv9DNjeUmsgzr4mWWuIoeKZpbrxgJRj3m67Yw8f8=; b=Xt4YySwN7wSK6SFpz6w1mZV92892RLYg3eqTfmkNTGJpOps0VdIf+Fp4gLCIJPITGG 5BUBcVkbSyzMkdBbXQSTO8wYXNHN9fRKenyunrNpMqH4m1qpz7BoTcY9JuVQCgmmgBeN MlYJQP5SXNdmmmtbbW6JU4Q3ukBVhG7QXPCsBjFhc/U1cFHMDHD5QENYPBJ0MylGBjJf 9pttudCUTzf8XqgG9YVDe0t/vwr7XgeOt1a5aaN6imm1yjZnbZKobmoUwiwuiuk9Ixsv 0woYMjUy1tDQkPzGDMQniTAvlhtzSECKT1/y73La4TWa8oVjKDSu618JTMpG7VI1zwTf ecSw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id l184-v6si1234526itg.159.2018.03.14.11.22.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:39 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0l-0006oD-Qk; Wed, 14 Mar 2018 18:20:27 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0j-0006mg-T4 for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:25 +0000 X-Inumbo-ID: 5ac9aa4c-27b4-11e8-9728-bc764e045a96 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTP id 5ac9aa4c-27b4-11e8-9728-bc764e045a96; Wed, 14 Mar 2018 19:20:20 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 366E915BE; Wed, 14 Mar 2018 11:20:24 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 049413F59A; Wed, 14 Mar 2018 11:20:22 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:19:59 +0000 Message-Id: <20180314182009.14274-7-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: George Dunlap , Andrew Cooper , Julien Grall , George Dunlap , Jan Beulich Subject: [Xen-devel] [PATCH v5 06/16] xen/x86: Remove unused override of page_to_mfn/mfn_to_page X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall A few files override page_to_mfn/mfn_to_page but actually never use those macros. So drop them. Signed-off-by: Julien Grall Acked-by: George Dunlap Acked-by: Jan Beulich --- Cc: George Dunlap Cc: Jan Beulich Cc: Andrew Cooper Changes in v5: - Add George and Jan's acked-by Changes in v4: - Patch added --- xen/arch/x86/mm/hap/nested_hap.c | 3 --- xen/arch/x86/mm/p2m-pt.c | 6 ------ xen/arch/x86/pv/iret.c | 6 ------ xen/arch/x86/pv/mm.c | 6 ------ xen/arch/x86/pv/traps.c | 6 ------ 5 files changed, 27 deletions(-) diff --git a/xen/arch/x86/mm/hap/nested_hap.c b/xen/arch/x86/mm/hap/nested_hap.c index 4603ceced4..d2a07a5c79 100644 --- a/xen/arch/x86/mm/hap/nested_hap.c +++ b/xen/arch/x86/mm/hap/nested_hap.c @@ -70,9 +70,6 @@ /********************************************/ /* NESTED VIRT P2M FUNCTIONS */ /********************************************/ -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) void nestedp2m_write_p2m_entry(struct p2m_domain *p2m, unsigned long gfn, diff --git a/xen/arch/x86/mm/p2m-pt.c b/xen/arch/x86/mm/p2m-pt.c index 753124bdcd..b8c5d2ed26 100644 --- a/xen/arch/x86/mm/p2m-pt.c +++ b/xen/arch/x86/mm/p2m-pt.c @@ -39,12 +39,6 @@ #include "mm-locks.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(_m) __mfn_to_page(mfn_x(_m)) -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) - /* * We may store INVALID_MFN in PTEs. We need to clip this to avoid trampling * over higher-order bits (NX, p2m type, IOMMU flags). We seem to not need diff --git a/xen/arch/x86/pv/iret.c b/xen/arch/x86/pv/iret.c index 56aeac360a..ca433a69c4 100644 --- a/xen/arch/x86/pv/iret.c +++ b/xen/arch/x86/pv/iret.c @@ -24,12 +24,6 @@ #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - unsigned long do_iret(void) { struct cpu_user_regs *regs = guest_cpu_user_regs(); diff --git a/xen/arch/x86/pv/mm.c b/xen/arch/x86/pv/mm.c index 8d7a4fd85f..b46fd94c2c 100644 --- a/xen/arch/x86/pv/mm.c +++ b/xen/arch/x86/pv/mm.c @@ -26,12 +26,6 @@ #include "mm.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - /* * Get a mapping of a PV guest's l1e for this linear address. The return * pointer should be unmapped using unmap_domain_page(). diff --git a/xen/arch/x86/pv/traps.c b/xen/arch/x86/pv/traps.c index 98549bc1ea..f48db92243 100644 --- a/xen/arch/x86/pv/traps.c +++ b/xen/arch/x86/pv/traps.c @@ -29,12 +29,6 @@ #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - void do_entry_int82(struct cpu_user_regs *regs) { if ( unlikely(untrusted_msi) ) From patchwork Wed Mar 14 18:20:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131713 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157101ljb; Wed, 14 Mar 2018 11:22:40 -0700 (PDT) X-Google-Smtp-Source: AG47ELumcU5p5s6lfIkP/8OzGb8OB78xRYpNr7zWHwMVGhs7ASEt//4YT+WVwOntDuaxgxj252oi X-Received: by 10.107.5.199 with SMTP id 190mr6149674iof.107.1521051759920; Wed, 14 Mar 2018 11:22:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051759; cv=none; d=google.com; s=arc-20160816; b=lumdKbpbJlGg+A+e6nbtEUPv6Q5NAlDeX/qW+3yD/2gMo4cgJauIHPAaBnK0vU7U91 xYz24EKQIsxA/tZe1JhWAXP0VyIMOfCIuK8wO3MMlwhlXz5+NpNokBNxT0BO174UHZkZ IxUwS06Xu5co2dIwPzjKVqKtgEuMgvOgII8a9kyIQ2ndO5RE0OslRgrEvXyV81SQvzX/ b2vmy1BcpwWz+YH88QG1bchQw/BLVvmgcCC3Pe0ZqcsfMKS1M+poaSRQYZj1ufNOinOx V3avdv9YAngQl7J9VCOHMiS5S3xMIeAMVg3YyX65ZTb8VGS2c0C/F4JTdDRCoRuAKp7Y 63Gg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=KYENDiaiYvxnCTJUoTlXfDJ8BNNS+rppRGFaHPBaw4I=; b=B7Kfk9vfoxCnhSuf/HkQMBZk8k4zdoT1sPRSnE8gxZpNFNbfywqIHmjOnaR7Km53wk gIN5tlrUo66lp/9c9E0w9T95cSHqjWOk4cyKwA59kMWXlTrkgEsMuO+D6A+bUtnjHXHI JvnWfeVYirXMPVLYiCxgJmB4/nPP/6pGHpZh6X0rinnpvpZhl+dngOGrcFNNP5WBzrjp XeLnE/TJsFoXJq0BnGcJAHPEX48j5C+7wCPlwlVV2+FVcsRvzlafwRWQnfKs7paCfrSn 8bm4l66ytlynyTEzUGZ031SvEPq1JreEghSvaNWcIHVtvIGZ18I9Jt+ghvR2kt8waLmy pRww== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id e186si1189770itb.32.2018.03.14.11.22.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:39 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0r-0006uN-Nk; Wed, 14 Mar 2018 18:20:33 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0p-0006nR-R9 for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:31 +0000 X-Inumbo-ID: 61fb0d47-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 61fb0d47-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:32 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 601FF80D; Wed, 14 Mar 2018 11:20:25 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 74E833F53D; Wed, 14 Mar 2018 11:20:24 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:00 +0000 Message-Id: <20180314182009.14274-8-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Andrew Cooper , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 07/16] xen/x86: mm: Switch x86/mm.c to use typesafe for virt_to_mfn X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall No functional change intended. Signed-off Julien Grall Acked-by: Jan Beulich Reviewed-by: George Dunlap --- Cc: Jan Beulich Cc: Andrew Cooper Changes in v5: - Add Jan's acked-by - Use PFN_DOWN Changes in v4: - Patch added --- xen/arch/x86/mm.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index 5f5577c7c2..ab10f552ea 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -135,6 +135,8 @@ #define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) #undef page_to_mfn #define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) +#undef virt_to_mfn +#define virt_to_mfn(v) _mfn(__virt_to_mfn(v)) /* Mapping of the fixmap space needed early. */ l1_pgentry_t __section(".bss.page_aligned") __aligned(PAGE_SIZE) @@ -380,7 +382,7 @@ void __init arch_init_memory(void) l3tab[i] = l3idle[i]; for ( ; i < L3_PAGETABLE_ENTRIES; ++i ) l3tab[i] = l3e_empty(); - split_l4e = l4e_from_pfn(virt_to_mfn(l3tab), + split_l4e = l4e_from_mfn(virt_to_mfn(l3tab), __PAGE_HYPERVISOR_RW); } else @@ -4155,7 +4157,7 @@ int xenmem_add_to_physmap_one( { case XENMAPSPACE_shared_info: if ( idx == 0 ) - mfn = _mfn(virt_to_mfn(d->shared_info)); + mfn = virt_to_mfn(d->shared_info); break; case XENMAPSPACE_grant_table: rc = gnttab_map_frame(d, idx, gpfn, &mfn); @@ -4781,7 +4783,7 @@ int map_pages_to_xen( if ( (l3e_get_flags(*pl3e) & _PAGE_PRESENT) && (l3e_get_flags(*pl3e) & _PAGE_PSE) ) { - l3e_write_atomic(pl3e, l3e_from_pfn(virt_to_mfn(pl2e), + l3e_write_atomic(pl3e, l3e_from_mfn(virt_to_mfn(pl2e), __PAGE_HYPERVISOR)); pl2e = NULL; } @@ -4879,7 +4881,7 @@ int map_pages_to_xen( if ( (l2e_get_flags(*pl2e) & _PAGE_PRESENT) && (l2e_get_flags(*pl2e) & _PAGE_PSE) ) { - l2e_write_atomic(pl2e, l2e_from_pfn(virt_to_mfn(pl1e), + l2e_write_atomic(pl2e, l2e_from_mfn(virt_to_mfn(pl1e), __PAGE_HYPERVISOR)); pl1e = NULL; } @@ -5088,7 +5090,7 @@ int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int nf) if ( (l3e_get_flags(*pl3e) & _PAGE_PRESENT) && (l3e_get_flags(*pl3e) & _PAGE_PSE) ) { - l3e_write_atomic(pl3e, l3e_from_pfn(virt_to_mfn(pl2e), + l3e_write_atomic(pl3e, l3e_from_mfn(virt_to_mfn(pl2e), __PAGE_HYPERVISOR)); pl2e = NULL; } @@ -5142,7 +5144,7 @@ int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int nf) if ( (l2e_get_flags(*pl2e) & _PAGE_PRESENT) && (l2e_get_flags(*pl2e) & _PAGE_PSE) ) { - l2e_write_atomic(pl2e, l2e_from_pfn(virt_to_mfn(pl1e), + l2e_write_atomic(pl2e, l2e_from_mfn(virt_to_mfn(pl1e), __PAGE_HYPERVISOR)); pl1e = NULL; } @@ -5546,8 +5548,7 @@ static void __memguard_change_range(void *p, unsigned long l, int guard) if ( guard ) flags &= ~_PAGE_PRESENT; - map_pages_to_xen( - _p, virt_to_maddr(p) >> PAGE_SHIFT, _l >> PAGE_SHIFT, flags); + map_pages_to_xen(_p, mfn_x(virt_to_mfn(p)), PFN_DOWN(_l), flags); } void memguard_guard_range(void *p, unsigned long l) From patchwork Wed Mar 14 18:20:01 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131716 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157198ljb; Wed, 14 Mar 2018 11:22:45 -0700 (PDT) X-Google-Smtp-Source: AG47ELvwqh/ylZ3Z4YSql3uUbBQR4knNr5YjAbHNcA5G4EgcmBnEEI30CU2nsgk6+5BEVC3TXL7A X-Received: by 10.107.44.83 with SMTP id s80mr6074266ios.49.1521051764925; Wed, 14 Mar 2018 11:22:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051764; cv=none; d=google.com; s=arc-20160816; b=oZJ/UuRiIlzt0xi0ERRIWC91/+Ba84E4QQYvlBAMZzFhiVm3JhOILE7Fd18kG7jVsb YEzEa0cVE6u0FsQiW6NYXblp0AhBX0P3go5bpsMq9NSkXluW0Pm90OuLe024h5xwarZq 6XVKEnWK0la/6zULDZspP+3SjQyMl9Nz8Y47uxFhcMOnYrdu/NqaCBAksoQC3m7kmRgs BMIL2XbPmEm/XarsiUtnqjmS/Jx1Oc3ffjSlAy18ngc+dG1py12oPX+Qfu1+hqs3FAV8 dNU+aAKrvB7MdxtCf7sI2JCDVh38R26A1+Fd8tzRxPs5V0rglZgIlpydO/xAXaBXWKY0 upNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=FwVAcl7Kl8oDqg4XMm2M2wnIExQIaO1ZbJofx1Rh+O8=; b=D/BdKPHpkA5KKueuR8CYGeGXrOPpTIj81ytHhrRSNCJtPp67WFEoMSb4sopPXm5zoH LGZxX0KvIYoBH5jl/T28yU/tgEaV0ZjmfzBRBaF4B5oTVvF4BTpL5j1YqEoTx8Hq+dph //t7mLnAncNNFfLOhxZqrXg4cecO5ZsPHeHRcQVRn2o+DbjlXMvdz+fJMoPy5ToyoH80 RnwX121GYgr0HagYSEavBBvmSN13rvdWEvcn2WvttqQPPBiqzhQ6aLwUjTVNrTiM0rYJ tOEWFuPN9J/TEyQDtqO5F/aZ3LdWlV58NwVeFS5Ttlc0D+BV/YAZPrlpfVjS4MWbGLz6 Kmzg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id o67-v6si1181098ith.66.2018.03.14.11.22.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:44 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0s-0006va-W6; Wed, 14 Mar 2018 18:20:34 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0r-0006pk-T9 for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:33 +0000 X-Inumbo-ID: 6333423f-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 6333423f-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:34 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6B18880D; Wed, 14 Mar 2018 11:20:27 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9FAE63F53D; Wed, 14 Mar 2018 11:20:25 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:01 +0000 Message-Id: <20180314182009.14274-9-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 08/16] xen/mm: Drop the parameter mfn from populate_pt_range X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall The function populate_pt_range is used to populate in advance the page-table but it will not do the actual mapping. So passing the MFN in parameter is pointless. Note that the only caller pass 0... At the same time replace 0 by INVALID_MFNs. While this does not matter as the entry will marked as not valid and populated, INVALID_MFN helps the reader to know the MFN is invalid. Signed-off-by: Julien Grall Acked-by: Andrew Cooper Reviewed-by: Wei Liu Reviewed-by: George Dunlap --- Cc: Stefano Stabellini Cc: Julien Grall Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Tim Deegan Cc: Wei Liu Changes in v5: - Update the commit message to explain why 0 -> INVALID_MFN. Changes in v4: - Patch added. --- xen/arch/arm/mm.c | 5 ++--- xen/arch/x86/mm.c | 5 ++--- xen/common/vmap.c | 2 +- xen/include/xen/mm.h | 3 +-- 4 files changed, 6 insertions(+), 9 deletions(-) diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index 9b77ab5f33..97dcdd5d50 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -1072,10 +1072,9 @@ int map_pages_to_xen(unsigned long virt, return create_xen_entries(INSERT, virt, _mfn(mfn), nr_mfns, flags); } -int populate_pt_range(unsigned long virt, unsigned long mfn, - unsigned long nr_mfns) +int populate_pt_range(unsigned long virt, unsigned long nr_mfns) { - return create_xen_entries(RESERVE, virt, _mfn(mfn), nr_mfns, 0); + return create_xen_entries(RESERVE, virt, INVALID_MFN, nr_mfns, 0); } int destroy_xen_mappings(unsigned long v, unsigned long e) diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index ab10f552ea..5e3e870260 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -5013,10 +5013,9 @@ int map_pages_to_xen( return 0; } -int populate_pt_range(unsigned long virt, unsigned long mfn, - unsigned long nr_mfns) +int populate_pt_range(unsigned long virt, unsigned long nr_mfns) { - return map_pages_to_xen(virt, mfn, nr_mfns, MAP_SMALL_PAGES); + return map_pages_to_xen(virt, mfn_x(INVALID_MFN), nr_mfns, MAP_SMALL_PAGES); } /* diff --git a/xen/common/vmap.c b/xen/common/vmap.c index 0b23f8fb97..11785ffb0a 100644 --- a/xen/common/vmap.c +++ b/xen/common/vmap.c @@ -42,7 +42,7 @@ void __init vm_init_type(enum vmap_region type, void *start, void *end) bitmap_fill(vm_bitmap(type), vm_low[type]); /* Populate page tables for the bitmap if necessary. */ - populate_pt_range(va, 0, vm_low[type] - nr); + populate_pt_range(va, vm_low[type] - nr); } static void *vm_alloc(unsigned int nr, unsigned int align, diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h index 0e0e5112c6..f2c6738ad2 100644 --- a/xen/include/xen/mm.h +++ b/xen/include/xen/mm.h @@ -175,8 +175,7 @@ int destroy_xen_mappings(unsigned long v, unsigned long e); * Create only non-leaf page table entries for the * page range in Xen virtual address space. */ -int populate_pt_range(unsigned long virt, unsigned long mfn, - unsigned long nr_mfns); +int populate_pt_range(unsigned long virt, unsigned long nr_mfns); /* Claim handling */ unsigned long domain_adjust_tot_pages(struct domain *d, long pages); int domain_set_outstanding_pages(struct domain *d, unsigned long pages); From patchwork Wed Mar 14 18:20:02 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131715 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157174ljb; Wed, 14 Mar 2018 11:22:43 -0700 (PDT) X-Google-Smtp-Source: AG47ELtHyOv4L1QcvQORbBdjizMBuVOfN9X9xoDbcJLB2ITqq8PIQf4IyFMyIlz/9DyfI7ls3CN1 X-Received: by 10.36.81.196 with SMTP id s187mr3120544ita.139.1521051763642; Wed, 14 Mar 2018 11:22:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051763; cv=none; d=google.com; s=arc-20160816; b=BNKC3WDgP65trfr/CHzBwuuwatEh8WOf/zJq8dV5EA7SEr3jlxCv7VUdAig1nkEMSB elq4OdAnauOr3t/JCl3Jq98K5Pew3UJKzVtpfsBbO4qGIMrcuqw8HVRDqGdVKGLmL3Vu ryUG6+mZs5VckiwvJKXqkd/d8Y2aMF7CTOXKHEGOIPuAgkZEU6MXDxfskfxIvxIbRepC ynuuiOdvAO/zVgEudMPTim6jx07PGwLmO/b1vg6yN1fqfVxW0dWeIKtbCkwi/8IZsTLP S2HBO02JRLGrRgZvWm9cnBjf9NCZ8NMuSpizZjzdRk7fNJe+Gg33c8Zwzlly3XYTp43x VuiQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=oX9dmPT26eTXgizD5nEX8K3TKei5C2pnsJ8RqlSQhZE=; b=MNaO30MjDMpXdWjdjt6XiSuwxFac0wvBmD99i2G/XlGyY3c/i7xlImN8v971+So2X2 bTVDKji9dMAnlgp6uvfW8/Oc/l1y0mBKorWVsS72iMbzDANpEvjL3gPTH9PSXag5+IBT bFA5dvuJfgRodBDs8ChG1a2VAZAFW4GM7rtrBMIMqapS2LD1EbH9f11dZCd8zThgFEfZ Rm8VfOsfeQLMvmbNfpUeVSfnBiKUJK/M7dv6IGW0nq5mO20vinzfhYuz8rC9ZZUEh45f zHuZ7biJJHp0vrGB3l1/n7Ko4tjq4FPgndijF+Kq52pSQDyzZdNaQThAR7DST8DTN1qy vUGg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id 67si2074444iog.204.2018.03.14.11.22.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:43 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0v-0006zM-8B; Wed, 14 Mar 2018 18:20:37 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0t-0006rr-VG for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:35 +0000 X-Inumbo-ID: 646b62a8-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 646b62a8-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:36 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7639015AB; Wed, 14 Mar 2018 11:20:29 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AADB23F53D; Wed, 14 Mar 2018 11:20:27 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:02 +0000 Message-Id: <20180314182009.14274-10-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 09/16] xen/pdx: Introduce helper to convert MFN <-> PDX X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall This will avoid use of pfn_to_pdx(mfn_x(mfn)) over the code base. Signed-off-by: Julien Grall Reviewed-by: Wei Liu Acked-by: Andrew Cooper --- Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Stefano Stabellini Cc: Tim Deegan Cc: Wei Liu Changes in v5: - Add Wei's reviewed-by Changes in v4: - Patch added --- xen/include/xen/pdx.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/xen/include/xen/pdx.h b/xen/include/xen/pdx.h index 4c56645c4c..a151aac1a2 100644 --- a/xen/include/xen/pdx.h +++ b/xen/include/xen/pdx.h @@ -35,6 +35,9 @@ static inline unsigned long pdx_to_pfn(unsigned long pdx) ((pdx << pfn_pdx_hole_shift) & pfn_top_mask); } +#define mfn_to_pdx(mfn) pfn_to_pdx(mfn_x(mfn)) +#define pdx_to_mfn(pdx) _mfn(pdx_to_pfn(pdx)) + extern void pfn_pdx_hole_setup(unsigned long); #endif /* HAS_PDX */ From patchwork Wed Mar 14 18:20:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131720 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157492ljb; Wed, 14 Mar 2018 11:23:05 -0700 (PDT) X-Google-Smtp-Source: AG47ELsiBBacp9p8OOkNnB6HeCYre1BxJdWEnFx6vRpODELZiTIF2rvdvgzbeZZ4ijcscHVOlkm9 X-Received: by 10.107.97.17 with SMTP id v17mr5809312iob.256.1521051785439; Wed, 14 Mar 2018 11:23:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051785; cv=none; d=google.com; s=arc-20160816; b=MNZWZsNl/PGKL2Dd6u+GC7CPnsDVjnVI/ac7wZ2PckFSAcqjPI4KjczT0BvWtzDkKQ D0B6zuvT84Ue0a3eXnbqc1xgyg5fwMS/iGcs16ToB0X4xawFJnRRH68osSbPl5g6Uy6l MqcIb6iqXmICyOooPRoIQfpsl1wesbOLeJmRW77E1j7rk1kKtCzOsA8jMY3s6R7hWcRN 4gvj/zLbU8zcS+XNuLSNjH1isrTeval5tlzCBcJpcAeVhH3Vv293KpGa7otSukey7PyI 9qfbnlBbTT/7UO14WkS3KWa+pSJXlbBIBLvoNUOvZ/mmGVVWwb4Aq1HKIh7AlFJ6Nhv1 HsOw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=Xx54YtcOi8myzatFPj9wbNPsE5H3cMgvnW7dG1P3XR8=; b=LJr7R49eaIR7zHV46zBku1okMV59O1ACc/8vCnjGVbEoNLQxtZyF3CoY7W0u/MhL1s 7pM73tQixold7QTaPwQmnGpyUyhUjOZonEk2WXWljuDEZWh3lgeyONxWzs2+nCOs+iw4 VEZ8c7K9Fwv7w7PsYCHW7OxruhHHxX8vOLqZeynCCNS/pe6ddA0WhzjbaKsL6trUuKHX ENpL2fcNe7yip2BgDDd6C8oPr5WWxUVeW18b613dEIN9nQKiYb9JjhSlXGfFI25LKTxo BzTkqMbVUGdbsHUyMtCXkIGPPJMeUF3NbUofi8cZOlYGLwt41tKc6Aq4PtncQrXsxKE1 qtXQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id w5-v6si1168536ith.111.2018.03.14.11.23.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:23:05 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0y-00074V-Sj; Wed, 14 Mar 2018 18:20:40 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0x-0006uh-1h for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:39 +0000 X-Inumbo-ID: 65fd5fbe-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 65fd5fbe-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:39 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1BD5C80D; Wed, 14 Mar 2018 11:20:32 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B6B493F53D; Wed, 14 Mar 2018 11:20:29 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:03 +0000 Message-Id: <20180314182009.14274-11-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Kevin Tian , Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich , Shane Wang , Gang Wei Subject: [Xen-devel] [PATCH v5 10/16] xen/mm: Switch map_pages_to_xen to use MFN typesafe X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall The current prototype is slightly confusing because it takes a virtual address and a physical frame (not address!). Switching to MFN will improve safety and reduce the chance to mistakenly invert the 2 parameters. Also, take the opportunity to switch (a - b) >> PAGE_SHIFT to PFN_DOWN(a - b) in the code modified. Signed-off-by: Julien Grall Acked-by: Andrew Cooper Reviewed-by: Wei Liu Reviewed-by: George Dunlap --- Cc: Stefano Stabellini Cc: Julien Grall Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Tim Deegan Cc: Wei Liu Cc: Gang Wei Cc: Shane Wang Cc: Kevin Tian Changes in v5: - Use PFN_DOWN as suggested by Jan - Replace _mfn(0) by INVALID_MFN where relevant Changes in v4: - Patch added --- xen/arch/arm/mm.c | 4 +-- xen/arch/x86/mm.c | 58 +++++++++++++++++++------------------- xen/arch/x86/setup.c | 20 ++++++------- xen/arch/x86/smpboot.c | 2 +- xen/arch/x86/tboot.c | 11 ++++---- xen/arch/x86/x86_64/mm.c | 27 ++++++++++-------- xen/arch/x86/x86_64/mmconfig_64.c | 6 ++-- xen/common/efi/boot.c | 2 +- xen/common/vmap.c | 10 +++++-- xen/drivers/acpi/apei/erst.c | 2 +- xen/drivers/acpi/apei/hest.c | 2 +- xen/drivers/passthrough/vtd/dmar.c | 2 +- xen/include/asm-arm/mm.h | 2 +- xen/include/xen/mm.h | 2 +- 14 files changed, 80 insertions(+), 70 deletions(-) diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index 97dcdd5d50..f17907ace8 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -1065,11 +1065,11 @@ out: } int map_pages_to_xen(unsigned long virt, - unsigned long mfn, + mfn_t mfn, unsigned long nr_mfns, unsigned int flags) { - return create_xen_entries(INSERT, virt, _mfn(mfn), nr_mfns, flags); + return create_xen_entries(INSERT, virt, mfn, nr_mfns, flags); } int populate_pt_range(unsigned long virt, unsigned long nr_mfns) diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index 5e3e870260..2d73232ede 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -213,7 +213,7 @@ static void __init init_frametable_chunk(void *start, void *end) while ( step && s + (step << PAGE_SHIFT) > e + (4 << PAGE_SHIFT) ) step >>= PAGETABLE_ORDER; mfn = alloc_boot_pages(step, step); - map_pages_to_xen(s, mfn_x(mfn), step, PAGE_HYPERVISOR); + map_pages_to_xen(s, mfn, step, PAGE_HYPERVISOR); } memset(start, 0, end - start); @@ -793,12 +793,12 @@ static int update_xen_mappings(unsigned long mfn, unsigned int cacheattr) XEN_VIRT_START + ((mfn - PFN_DOWN(xen_phys_start)) << PAGE_SHIFT); if ( unlikely(alias) && cacheattr ) - err = map_pages_to_xen(xen_va, mfn, 1, 0); + err = map_pages_to_xen(xen_va, _mfn(mfn), 1, 0); if ( !err ) - err = map_pages_to_xen((unsigned long)mfn_to_virt(mfn), mfn, 1, + err = map_pages_to_xen((unsigned long)mfn_to_virt(mfn), _mfn(mfn), 1, PAGE_HYPERVISOR | cacheattr_to_pte_flags(cacheattr)); if ( unlikely(alias) && !cacheattr && !err ) - err = map_pages_to_xen(xen_va, mfn, 1, PAGE_HYPERVISOR); + err = map_pages_to_xen(xen_va, _mfn(mfn), 1, PAGE_HYPERVISOR); return err; } @@ -4651,7 +4651,7 @@ l1_pgentry_t *virt_to_xen_l1e(unsigned long v) int map_pages_to_xen( unsigned long virt, - unsigned long mfn, + mfn_t mfn, unsigned long nr_mfns, unsigned int flags) { @@ -4683,13 +4683,13 @@ int map_pages_to_xen( ol3e = *pl3e; if ( cpu_has_page1gb && - !(((virt >> PAGE_SHIFT) | mfn) & + !(((virt >> PAGE_SHIFT) | mfn_x(mfn)) & ((1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT)) - 1)) && nr_mfns >= (1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT)) && !(flags & (_PAGE_PAT | MAP_SMALL_PAGES)) ) { /* 1GB-page mapping. */ - l3e_write_atomic(pl3e, l3e_from_pfn(mfn, l1f_to_lNf(flags))); + l3e_write_atomic(pl3e, l3e_from_mfn(mfn, l1f_to_lNf(flags))); if ( (l3e_get_flags(ol3e) & _PAGE_PRESENT) ) { @@ -4733,8 +4733,8 @@ int map_pages_to_xen( } virt += 1UL << L3_PAGETABLE_SHIFT; - if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) - mfn += 1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT); + if ( !mfn_eq(mfn, INVALID_MFN) ) + mfn = mfn_add(mfn, 1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT)); nr_mfns -= 1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT); continue; } @@ -4749,18 +4749,18 @@ int map_pages_to_xen( if ( ((l3e_get_pfn(ol3e) & ~(L2_PAGETABLE_ENTRIES * L1_PAGETABLE_ENTRIES - 1)) + (l2_table_offset(virt) << PAGETABLE_ORDER) + - l1_table_offset(virt) == mfn) && + l1_table_offset(virt) == mfn_x(mfn)) && ((lNf_to_l1f(l3e_get_flags(ol3e)) ^ flags) & ~(_PAGE_ACCESSED|_PAGE_DIRTY)) == 0 ) { /* We can skip to end of L3 superpage if we got a match. */ i = (1u << (L3_PAGETABLE_SHIFT - PAGE_SHIFT)) - - (mfn & ((1 << (L3_PAGETABLE_SHIFT - PAGE_SHIFT)) - 1)); + (mfn_x(mfn) & ((1 << (L3_PAGETABLE_SHIFT - PAGE_SHIFT)) - 1)); if ( i > nr_mfns ) i = nr_mfns; virt += i << PAGE_SHIFT; - if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) - mfn += i; + if ( !mfn_eq(mfn, INVALID_MFN) ) + mfn = mfn_add(mfn, i); nr_mfns -= i; continue; } @@ -4798,14 +4798,14 @@ int map_pages_to_xen( if ( !pl2e ) return -ENOMEM; - if ( ((((virt >> PAGE_SHIFT) | mfn) & + if ( ((((virt >> PAGE_SHIFT) | mfn_x(mfn)) & ((1u << PAGETABLE_ORDER) - 1)) == 0) && (nr_mfns >= (1u << PAGETABLE_ORDER)) && !(flags & (_PAGE_PAT|MAP_SMALL_PAGES)) ) { /* Super-page mapping. */ ol2e = *pl2e; - l2e_write_atomic(pl2e, l2e_from_pfn(mfn, l1f_to_lNf(flags))); + l2e_write_atomic(pl2e, l2e_from_mfn(mfn, l1f_to_lNf(flags))); if ( (l2e_get_flags(ol2e) & _PAGE_PRESENT) ) { @@ -4828,8 +4828,8 @@ int map_pages_to_xen( } virt += 1UL << L2_PAGETABLE_SHIFT; - if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) - mfn += 1UL << PAGETABLE_ORDER; + if ( !mfn_eq(mfn, INVALID_MFN) ) + mfn = mfn_add(mfn, 1UL << PAGETABLE_ORDER); nr_mfns -= 1UL << PAGETABLE_ORDER; } else @@ -4848,18 +4848,18 @@ int map_pages_to_xen( /* Skip this PTE if there is no change. */ if ( (((l2e_get_pfn(*pl2e) & ~(L1_PAGETABLE_ENTRIES - 1)) + - l1_table_offset(virt)) == mfn) && + l1_table_offset(virt)) == mfn_x(mfn)) && (((lNf_to_l1f(l2e_get_flags(*pl2e)) ^ flags) & ~(_PAGE_ACCESSED|_PAGE_DIRTY)) == 0) ) { /* We can skip to end of L2 superpage if we got a match. */ i = (1u << (L2_PAGETABLE_SHIFT - PAGE_SHIFT)) - - (mfn & ((1u << (L2_PAGETABLE_SHIFT - PAGE_SHIFT)) - 1)); + (mfn_x(mfn) & ((1u << (L2_PAGETABLE_SHIFT - PAGE_SHIFT)) - 1)); if ( i > nr_mfns ) i = nr_mfns; virt += i << L1_PAGETABLE_SHIFT; - if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) - mfn += i; + if ( !mfn_eq(mfn, INVALID_MFN) ) + mfn = mfn_add(mfn, i); nr_mfns -= i; goto check_l3; } @@ -4894,7 +4894,7 @@ int map_pages_to_xen( pl1e = l2e_to_l1e(*pl2e) + l1_table_offset(virt); ol1e = *pl1e; - l1e_write_atomic(pl1e, l1e_from_pfn(mfn, flags)); + l1e_write_atomic(pl1e, l1e_from_mfn(mfn, flags)); if ( (l1e_get_flags(ol1e) & _PAGE_PRESENT) ) { unsigned int flush_flags = FLUSH_TLB | FLUSH_ORDER(0); @@ -4904,13 +4904,13 @@ int map_pages_to_xen( } virt += 1UL << L1_PAGETABLE_SHIFT; - if ( !mfn_eq(_mfn(mfn), INVALID_MFN) ) - mfn += 1UL; + if ( !mfn_eq(mfn, INVALID_MFN) ) + mfn = mfn_add(mfn, 1UL); nr_mfns -= 1UL; if ( (flags == PAGE_HYPERVISOR) && ((nr_mfns == 0) || - ((((virt >> PAGE_SHIFT) | mfn) & + ((((virt >> PAGE_SHIFT) | mfn_x(mfn)) & ((1u << PAGETABLE_ORDER) - 1)) == 0)) ) { unsigned long base_mfn; @@ -4963,7 +4963,7 @@ int map_pages_to_xen( if ( cpu_has_page1gb && (flags == PAGE_HYPERVISOR) && ((nr_mfns == 0) || - !(((virt >> PAGE_SHIFT) | mfn) & + !(((virt >> PAGE_SHIFT) | mfn_x(mfn)) & ((1UL << (L3_PAGETABLE_SHIFT - PAGE_SHIFT)) - 1))) ) { unsigned long base_mfn; @@ -5015,7 +5015,7 @@ int map_pages_to_xen( int populate_pt_range(unsigned long virt, unsigned long nr_mfns) { - return map_pages_to_xen(virt, mfn_x(INVALID_MFN), nr_mfns, MAP_SMALL_PAGES); + return map_pages_to_xen(virt, INVALID_MFN, nr_mfns, MAP_SMALL_PAGES); } /* @@ -5276,7 +5276,7 @@ void __set_fixmap( enum fixed_addresses idx, unsigned long mfn, unsigned long flags) { BUG_ON(idx >= __end_of_fixed_addresses); - map_pages_to_xen(__fix_to_virt(idx), mfn, 1, flags); + map_pages_to_xen(__fix_to_virt(idx), _mfn(mfn), 1, flags); } void *__init arch_vmap_virt_end(void) @@ -5547,7 +5547,7 @@ static void __memguard_change_range(void *p, unsigned long l, int guard) if ( guard ) flags &= ~_PAGE_PRESENT; - map_pages_to_xen(_p, mfn_x(virt_to_mfn(p)), PFN_DOWN(_l), flags); + map_pages_to_xen(_p, virt_to_mfn(p), PFN_DOWN(_l), flags); } void memguard_guard_range(void *p, unsigned long l) diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c index ac530ece2c..060b478385 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -354,8 +354,8 @@ void *__init bootstrap_map(const module_t *mod) if ( end - start > BOOTSTRAP_MAP_LIMIT - map_cur ) return NULL; - map_pages_to_xen(map_cur, start >> PAGE_SHIFT, - (end - start) >> PAGE_SHIFT, PAGE_HYPERVISOR); + map_pages_to_xen(map_cur, maddr_to_mfn(start), + PFN_DOWN(end - start), PAGE_HYPERVISOR); map_cur += end - start; return ret; } @@ -977,8 +977,8 @@ void __init noreturn __start_xen(unsigned long mbi_p) { end = min(e, limit); set_pdx_range(s >> PAGE_SHIFT, end >> PAGE_SHIFT); - map_pages_to_xen((unsigned long)__va(s), s >> PAGE_SHIFT, - (end - s) >> PAGE_SHIFT, PAGE_HYPERVISOR); + map_pages_to_xen((unsigned long)__va(s), maddr_to_mfn(s), + PFN_DOWN(end - s), PAGE_HYPERVISOR); } if ( e > min(HYPERVISOR_VIRT_END - DIRECTMAP_VIRT_START, @@ -1292,7 +1292,7 @@ void __init noreturn __start_xen(unsigned long mbi_p) if ( map_e < end ) { - map_pages_to_xen((unsigned long)__va(map_e), PFN_DOWN(map_e), + map_pages_to_xen((unsigned long)__va(map_e), maddr_to_mfn(map_e), PFN_DOWN(end - map_e), PAGE_HYPERVISOR); init_boot_pages(map_e, end); map_e = end; @@ -1302,13 +1302,13 @@ void __init noreturn __start_xen(unsigned long mbi_p) { /* This range must not be passed to the boot allocator and * must also not be mapped with _PAGE_GLOBAL. */ - map_pages_to_xen((unsigned long)__va(map_e), PFN_DOWN(map_e), + map_pages_to_xen((unsigned long)__va(map_e), maddr_to_mfn(map_e), PFN_DOWN(e - map_e), __PAGE_HYPERVISOR_RW); } if ( s < map_s ) { - map_pages_to_xen((unsigned long)__va(s), s >> PAGE_SHIFT, - (map_s - s) >> PAGE_SHIFT, PAGE_HYPERVISOR); + map_pages_to_xen((unsigned long)__va(s), maddr_to_mfn(s), + PFN_DOWN(map_s - s), PAGE_HYPERVISOR); init_boot_pages(s, map_s); } } @@ -1318,7 +1318,7 @@ void __init noreturn __start_xen(unsigned long mbi_p) set_pdx_range(mod[i].mod_start, mod[i].mod_start + PFN_UP(mod[i].mod_end)); map_pages_to_xen((unsigned long)mfn_to_virt(mod[i].mod_start), - mod[i].mod_start, + _mfn(mod[i].mod_start), PFN_UP(mod[i].mod_end), PAGE_HYPERVISOR); } @@ -1331,7 +1331,7 @@ void __init noreturn __start_xen(unsigned long mbi_p) if ( e > s ) map_pages_to_xen((unsigned long)__va(kexec_crash_area.start), - s, e - s, PAGE_HYPERVISOR); + _mfn(s), e - s, PAGE_HYPERVISOR); } #endif diff --git a/xen/arch/x86/smpboot.c b/xen/arch/x86/smpboot.c index 98873df429..80549ad925 100644 --- a/xen/arch/x86/smpboot.c +++ b/xen/arch/x86/smpboot.c @@ -623,7 +623,7 @@ unsigned long alloc_stub_page(unsigned int cpu, unsigned long *mfn) } stub_va = XEN_VIRT_END - (cpu + 1) * PAGE_SIZE; - if ( map_pages_to_xen(stub_va, mfn_x(page_to_mfn(pg)), 1, + if ( map_pages_to_xen(stub_va, page_to_mfn(pg), 1, PAGE_HYPERVISOR_RX | MAP_SMALL_PAGES) ) { if ( !*mfn ) diff --git a/xen/arch/x86/tboot.c b/xen/arch/x86/tboot.c index d36bf33407..71e757c553 100644 --- a/xen/arch/x86/tboot.c +++ b/xen/arch/x86/tboot.c @@ -336,22 +336,23 @@ static void tboot_gen_frametable_integrity(const uint8_t key[TB_KEY_SIZE], void tboot_shutdown(uint32_t shutdown_type) { - uint32_t map_base, map_size; + mfn_t map_base; + uint32_t map_size; int err; g_tboot_shared->shutdown_type = shutdown_type; /* Create identity map for tboot shutdown code. */ /* do before S3 integrity because mapping tboot may change xenheap */ - map_base = PFN_DOWN(g_tboot_shared->tboot_base); + map_base = maddr_to_mfn(g_tboot_shared->tboot_base); map_size = PFN_UP(g_tboot_shared->tboot_size); - err = map_pages_to_xen(map_base << PAGE_SHIFT, map_base, map_size, + err = map_pages_to_xen(mfn_to_maddr(map_base), map_base, map_size, __PAGE_HYPERVISOR); if ( err != 0 ) { - printk("error (%#x) mapping tboot pages (mfns) @ %#x, %#x\n", err, - map_base, map_size); + printk("error (%#x) mapping tboot pages (mfns) @ %"PRI_mfn", %#x\n", + err, mfn_x(map_base), map_size); return; } diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c index 2dfb6af5e9..e03250bcdd 100644 --- a/xen/arch/x86/x86_64/mm.c +++ b/xen/arch/x86/x86_64/mm.c @@ -40,6 +40,10 @@ asm(".file \"" __FILE__ "\""); #include #include +/* Override macros from asm/page.h to make them work with mfn_t */ +#undef page_to_mfn +#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) + unsigned int __read_mostly m2p_compat_vstart = __HYPERVISOR_COMPAT_VIRT_START; l2_pgentry_t *compat_idle_pg_table_l2; @@ -111,14 +115,14 @@ static int hotadd_mem_valid(unsigned long pfn, struct mem_hotadd_info *info) return (pfn < info->epfn && pfn >= info->spfn); } -static unsigned long alloc_hotadd_mfn(struct mem_hotadd_info *info) +static mfn_t alloc_hotadd_mfn(struct mem_hotadd_info *info) { - unsigned mfn; + mfn_t mfn; ASSERT((info->cur + ( 1UL << PAGETABLE_ORDER) < info->epfn) && info->cur >= info->spfn); - mfn = info->cur; + mfn = _mfn(info->cur); info->cur += (1UL << PAGETABLE_ORDER); return mfn; } @@ -317,7 +321,8 @@ static void destroy_m2p_mapping(struct mem_hotadd_info *info) */ static int setup_compat_m2p_table(struct mem_hotadd_info *info) { - unsigned long i, va, smap, emap, rwva, epfn = info->epfn, mfn; + unsigned long i, va, smap, emap, rwva, epfn = info->epfn; + mfn_t mfn; unsigned int n; l3_pgentry_t *l3_ro_mpt = NULL; l2_pgentry_t *l2_ro_mpt = NULL; @@ -378,7 +383,7 @@ static int setup_compat_m2p_table(struct mem_hotadd_info *info) memset((void *)rwva, 0xFF, 1UL << L2_PAGETABLE_SHIFT); /* NB. Cannot be GLOBAL as the ptes get copied into per-VM space. */ l2e_write(&l2_ro_mpt[l2_table_offset(va)], - l2e_from_pfn(mfn, _PAGE_PSE|_PAGE_PRESENT)); + l2e_from_mfn(mfn, _PAGE_PSE|_PAGE_PRESENT)); } #undef CNT #undef MFN @@ -438,7 +443,7 @@ static int setup_m2p_table(struct mem_hotadd_info *info) break; if ( n < CNT ) { - unsigned long mfn = alloc_hotadd_mfn(info); + mfn_t mfn = alloc_hotadd_mfn(info); ret = map_pages_to_xen( RDWR_MPT_VIRT_START + i * sizeof(unsigned long), @@ -473,7 +478,7 @@ static int setup_m2p_table(struct mem_hotadd_info *info) } /* NB. Cannot be GLOBAL: guest user mode should not see it. */ - l2e_write(l2_ro_mpt, l2e_from_pfn(mfn, + l2e_write(l2_ro_mpt, l2e_from_mfn(mfn, /*_PAGE_GLOBAL|*/_PAGE_PSE|_PAGE_USER|_PAGE_PRESENT)); } if ( !((unsigned long)l2_ro_mpt & ~PAGE_MASK) ) @@ -692,7 +697,7 @@ void __init zap_low_mappings(void) flush_local(FLUSH_TLB_GLOBAL); /* Replace with mapping of the boot trampoline only. */ - map_pages_to_xen(trampoline_phys, trampoline_phys >> PAGE_SHIFT, + map_pages_to_xen(trampoline_phys, maddr_to_mfn(trampoline_phys), PFN_UP(trampoline_end - trampoline_start), __PAGE_HYPERVISOR); } @@ -769,7 +774,7 @@ static int setup_frametable_chunk(void *start, void *end, { unsigned long s = (unsigned long)start; unsigned long e = (unsigned long)end; - unsigned long mfn; + mfn_t mfn; int err; ASSERT(!(s & ((1 << L2_PAGETABLE_SHIFT) - 1))); @@ -1368,7 +1373,7 @@ int memory_add(unsigned long spfn, unsigned long epfn, unsigned int pxm) i = virt_to_mfn(HYPERVISOR_VIRT_END - 1) + 1; if ( spfn < i ) { - ret = map_pages_to_xen((unsigned long)mfn_to_virt(spfn), spfn, + ret = map_pages_to_xen((unsigned long)mfn_to_virt(spfn), _mfn(spfn), min(epfn, i) - spfn, PAGE_HYPERVISOR); if ( ret ) goto destroy_directmap; @@ -1377,7 +1382,7 @@ int memory_add(unsigned long spfn, unsigned long epfn, unsigned int pxm) { if ( i < spfn ) i = spfn; - ret = map_pages_to_xen((unsigned long)mfn_to_virt(i), i, + ret = map_pages_to_xen((unsigned long)mfn_to_virt(i), _mfn(i), epfn - i, __PAGE_HYPERVISOR_RW); if ( ret ) goto destroy_directmap; diff --git a/xen/arch/x86/x86_64/mmconfig_64.c b/xen/arch/x86/x86_64/mmconfig_64.c index 958b6cf2f4..2b3085931e 100644 --- a/xen/arch/x86/x86_64/mmconfig_64.c +++ b/xen/arch/x86/x86_64/mmconfig_64.c @@ -125,9 +125,9 @@ static void __iomem *mcfg_ioremap(const struct acpi_mcfg_allocation *cfg, return NULL; if (map_pages_to_xen(virt, - (cfg->address >> PAGE_SHIFT) + - (cfg->start_bus_number << (20 - PAGE_SHIFT)), - size >> PAGE_SHIFT, prot)) + mfn_add(maddr_to_mfn(cfg->address), + (cfg->start_bus_number << (20 - PAGE_SHIFT))), + PFN_DOWN(size), prot)) return NULL; return (void __iomem *) virt; diff --git a/xen/common/efi/boot.c b/xen/common/efi/boot.c index 469bf980cc..64d12685d3 100644 --- a/xen/common/efi/boot.c +++ b/xen/common/efi/boot.c @@ -1464,7 +1464,7 @@ void __init efi_init_memory(void) if ( (unsigned long)mfn_to_virt(emfn - 1) >= HYPERVISOR_VIRT_END ) prot &= ~_PAGE_GLOBAL; if ( map_pages_to_xen((unsigned long)mfn_to_virt(smfn), - smfn, emfn - smfn, prot) == 0 ) + _mfn(smfn), emfn - smfn, prot) == 0 ) desc->VirtualStart = (unsigned long)maddr_to_virt(desc->PhysicalStart); else diff --git a/xen/common/vmap.c b/xen/common/vmap.c index 11785ffb0a..04f5db386d 100644 --- a/xen/common/vmap.c +++ b/xen/common/vmap.c @@ -9,6 +9,10 @@ #include #include +/* Override macros from asm/page.h to make them work with mfn_t */ +#undef page_to_mfn +#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) + static DEFINE_SPINLOCK(vm_lock); static void *__read_mostly vm_base[VMAP_REGION_NR]; #define vm_bitmap(x) ((unsigned long *)vm_base[x]) @@ -208,7 +212,7 @@ void *__vmap(const mfn_t *mfn, unsigned int granularity, for ( ; va && nr--; ++mfn, cur += PAGE_SIZE * granularity ) { - if ( map_pages_to_xen(cur, mfn_x(*mfn), granularity, flags) ) + if ( map_pages_to_xen(cur, *mfn, granularity, flags) ) { vunmap(va); va = NULL; @@ -234,7 +238,7 @@ void vunmap(const void *va) #ifndef _PAGE_NONE destroy_xen_mappings(addr, addr + PAGE_SIZE * pages); #else /* Avoid tearing down intermediate page tables. */ - map_pages_to_xen(addr, 0, pages, _PAGE_NONE); + map_pages_to_xen(addr, INVALID_MFN, pages, _PAGE_NONE); #endif vm_free(va); } @@ -258,7 +262,7 @@ static void *vmalloc_type(size_t size, enum vmap_region type) pg = alloc_domheap_page(NULL, 0); if ( pg == NULL ) goto error; - mfn[i] = _mfn(page_to_mfn(pg)); + mfn[i] = page_to_mfn(pg); } va = __vmap(mfn, 1, pages, 1, PAGE_HYPERVISOR, type); diff --git a/xen/drivers/acpi/apei/erst.c b/xen/drivers/acpi/apei/erst.c index 14acf5d773..7fc4de5de9 100644 --- a/xen/drivers/acpi/apei/erst.c +++ b/xen/drivers/acpi/apei/erst.c @@ -799,7 +799,7 @@ int __init erst_init(void) printk(KERN_WARNING "Failed to get ERST table: %s\n", msg); return -EINVAL; } - map_pages_to_xen((unsigned long)__va(erst_addr), PFN_DOWN(erst_addr), + map_pages_to_xen((unsigned long)__va(erst_addr), maddr_to_mfn(erst_addr), PFN_UP(erst_addr + erst_len) - PFN_DOWN(erst_addr), PAGE_HYPERVISOR); erst_tab = __va(erst_addr); diff --git a/xen/drivers/acpi/apei/hest.c b/xen/drivers/acpi/apei/hest.c index f74e7c2a06..70734ab0e2 100644 --- a/xen/drivers/acpi/apei/hest.c +++ b/xen/drivers/acpi/apei/hest.c @@ -184,7 +184,7 @@ void __init acpi_hest_init(void) acpi_format_exception(status)); goto err; } - map_pages_to_xen((unsigned long)__va(hest_addr), PFN_DOWN(hest_addr), + map_pages_to_xen((unsigned long)__va(hest_addr), maddr_to_mfn(hest_addr), PFN_UP(hest_addr + hest_len) - PFN_DOWN(hest_addr), PAGE_HYPERVISOR); hest_tab = __va(hest_addr); diff --git a/xen/drivers/passthrough/vtd/dmar.c b/xen/drivers/passthrough/vtd/dmar.c index d713a8ca5d..46decd4eb1 100644 --- a/xen/drivers/passthrough/vtd/dmar.c +++ b/xen/drivers/passthrough/vtd/dmar.c @@ -1008,7 +1008,7 @@ int __init acpi_dmar_init(void) if ( ACPI_SUCCESS(acpi_get_table_phys(ACPI_SIG_DMAR, 0, &dmar_addr, &dmar_len)) ) { - map_pages_to_xen((unsigned long)__va(dmar_addr), PFN_DOWN(dmar_addr), + map_pages_to_xen((unsigned long)__va(dmar_addr), maddr_to_mfn(dmar_addr), PFN_UP(dmar_addr + dmar_len) - PFN_DOWN(dmar_addr), PAGE_HYPERVISOR); dmar_table = __va(dmar_addr); diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h index 7678e29c15..023e2eb213 100644 --- a/xen/include/asm-arm/mm.h +++ b/xen/include/asm-arm/mm.h @@ -138,7 +138,7 @@ extern vaddr_t xenheap_virt_start; #endif #ifdef CONFIG_ARM_32 -#define is_xen_heap_page(page) is_xen_heap_mfn(page_to_mfn(page)) +#define is_xen_heap_page(page) is_xen_heap_mfn(__page_to_mfn(page)) #define is_xen_heap_mfn(mfn) ({ \ unsigned long mfn_ = (mfn); \ (mfn_ >= mfn_x(xenheap_mfn_start) && \ diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h index f2c6738ad2..caad06e753 100644 --- a/xen/include/xen/mm.h +++ b/xen/include/xen/mm.h @@ -165,7 +165,7 @@ bool scrub_free_pages(void); /* Map machine page range in Xen virtual address space. */ int map_pages_to_xen( unsigned long virt, - unsigned long mfn, + mfn_t mfn, unsigned long nr_mfns, unsigned int flags); /* Alter the permissions of a range of Xen virtual address space. */ From patchwork Wed Mar 14 18:20:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131710 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp156976ljb; Wed, 14 Mar 2018 11:22:33 -0700 (PDT) X-Google-Smtp-Source: AG47ELvscty7dRtFkgAq6J/73NW/Zfg6ZPT1rhljAtsBYj9Y6FoSk0i1EKLYfW5YkPqJGJBiTNRk X-Received: by 10.107.222.1 with SMTP id v1mr6248802iog.155.1521051753724; 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[192.237.175.120]) by mx.google.com with ESMTPS id j2si153236iob.116.2018.03.14.11.22.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:33 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0w-00070z-GQ; Wed, 14 Mar 2018 18:20:38 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB0u-0006xr-Pv for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:36 +0000 X-Inumbo-ID: 60b71a4a-27b4-11e8-9728-bc764e045a96 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTP id 60b71a4a-27b4-11e8-9728-bc764e045a96; Wed, 14 Mar 2018 19:20:30 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2722615BE; Wed, 14 Mar 2018 11:20:34 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5B9043F53D; Wed, 14 Mar 2018 11:20:32 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:04 +0000 Message-Id: <20180314182009.14274-12-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 11/16] xen/mm: Switch some of page_alloc.c to typesafe MFN X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall No functional change intended. Signed-off-by: Julien Grall Reviewed-by: Wei Liu Reviewed-by: George Dunlap --- Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Stefano Stabellini Cc: Tim Deegan Cc: Wei Liu Cc: Julien Grall Wei, I have kept the reviewed-by because the changes were minor. Let's me know if you want me to drop it. Changes in v5: - Add Wei's reviewed-by - Fix coding style (space before and after '+') - Rework the commit title as page_alloc.c was not fully converted to typesafe MFN. Changes in v4: - Patch added --- xen/common/page_alloc.c | 64 ++++++++++++++++++++++++++-------------------- xen/include/asm-arm/numa.h | 8 +++--- 2 files changed, 41 insertions(+), 31 deletions(-) diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c index 4de8988bea..6e50fb2621 100644 --- a/xen/common/page_alloc.c +++ b/xen/common/page_alloc.c @@ -151,6 +151,12 @@ #define p2m_pod_offline_or_broken_replace(pg) BUG_ON(pg != NULL) #endif +/* Override macros from asm/page.h to make them work with mfn_t */ +#undef page_to_mfn +#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) +#undef mfn_to_page +#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) + /* * Comma-separated list of hexadecimal page numbers containing bad bytes. * e.g. 'badpage=0x3f45,0x8a321'. @@ -197,7 +203,7 @@ PAGE_LIST_HEAD(page_broken_list); * first_valid_mfn is exported because it is use in ARM specific NUMA * helpers. See comment in asm-arm/numa.h. */ -unsigned long first_valid_mfn = ~0UL; +mfn_t first_valid_mfn = INVALID_MFN_INITIALIZER; static struct bootmem_region { unsigned long s, e; /* MFNs @s through @e-1 inclusive are free */ @@ -283,7 +289,7 @@ void __init init_boot_pages(paddr_t ps, paddr_t pe) if ( pe <= ps ) return; - first_valid_mfn = min_t(unsigned long, ps >> PAGE_SHIFT, first_valid_mfn); + first_valid_mfn = mfn_min(maddr_to_mfn(ps), first_valid_mfn); bootmem_region_add(ps >> PAGE_SHIFT, pe >> PAGE_SHIFT); @@ -397,7 +403,7 @@ mfn_t __init alloc_boot_pages(unsigned long nr_pfns, unsigned long pfn_align) #define bits_to_zone(b) (((b) < (PAGE_SHIFT + 1)) ? 1 : ((b) - PAGE_SHIFT)) #define page_to_zone(pg) (is_xen_heap_page(pg) ? MEMZONE_XEN : \ - (flsl(page_to_mfn(pg)) ? : 1)) + (flsl(mfn_x(page_to_mfn(pg))) ? : 1)) typedef struct page_list_head heap_by_zone_and_order_t[NR_ZONES][MAX_ORDER+1]; static heap_by_zone_and_order_t *_heap[MAX_NUMNODES]; @@ -729,7 +735,7 @@ static void page_list_add_scrub(struct page_info *pg, unsigned int node, static void poison_one_page(struct page_info *pg) { #ifdef CONFIG_SCRUB_DEBUG - mfn_t mfn = _mfn(page_to_mfn(pg)); + mfn_t mfn = page_to_mfn(pg); uint64_t *ptr; if ( !scrub_debug ) @@ -744,7 +750,7 @@ static void poison_one_page(struct page_info *pg) static void check_one_page(struct page_info *pg) { #ifdef CONFIG_SCRUB_DEBUG - mfn_t mfn = _mfn(page_to_mfn(pg)); + mfn_t mfn = page_to_mfn(pg); const uint64_t *ptr; unsigned int i; @@ -992,7 +998,8 @@ static struct page_info *alloc_heap_pages( /* Ensure cache and RAM are consistent for platforms where the * guest can control its own visibility of/through the cache. */ - flush_page_to_ram(page_to_mfn(&pg[i]), !(memflags & MEMF_no_icache_flush)); + flush_page_to_ram(mfn_x(page_to_mfn(&pg[i])), + !(memflags & MEMF_no_icache_flush)); } spin_unlock(&heap_lock); @@ -1344,7 +1351,8 @@ bool scrub_free_pages(void) static void free_heap_pages( struct page_info *pg, unsigned int order, bool need_scrub) { - unsigned long mask, mfn = page_to_mfn(pg); + unsigned long mask; + mfn_t mfn = page_to_mfn(pg); unsigned int i, node = phys_to_nid(page_to_maddr(pg)), tainted = 0; unsigned int zone = page_to_zone(pg); @@ -1381,7 +1389,7 @@ static void free_heap_pages( /* This page is not a guest frame any more. */ page_set_owner(&pg[i], NULL); /* set_gpfn_from_mfn snoops pg owner */ - set_gpfn_from_mfn(mfn + i, INVALID_M2P_ENTRY); + set_gpfn_from_mfn(mfn_x(mfn) + i, INVALID_M2P_ENTRY); if ( need_scrub ) { @@ -1409,12 +1417,12 @@ static void free_heap_pages( { mask = 1UL << order; - if ( (page_to_mfn(pg) & mask) ) + if ( (mfn_x(page_to_mfn(pg)) & mask) ) { struct page_info *predecessor = pg - mask; /* Merge with predecessor block? */ - if ( !mfn_valid(_mfn(page_to_mfn(predecessor))) || + if ( !mfn_valid(page_to_mfn(predecessor)) || !page_state_is(predecessor, free) || (PFN_ORDER(predecessor) != order) || (phys_to_nid(page_to_maddr(predecessor)) != node) ) @@ -1437,7 +1445,7 @@ static void free_heap_pages( struct page_info *successor = pg + mask; /* Merge with successor block? */ - if ( !mfn_valid(_mfn(page_to_mfn(successor))) || + if ( !mfn_valid(page_to_mfn(successor)) || !page_state_is(successor, free) || (PFN_ORDER(successor) != order) || (phys_to_nid(page_to_maddr(successor)) != node) ) @@ -1470,7 +1478,7 @@ static unsigned long mark_page_offline(struct page_info *pg, int broken) { unsigned long nx, x, y = pg->count_info; - ASSERT(page_is_ram_type(page_to_mfn(pg), RAM_TYPE_CONVENTIONAL)); + ASSERT(page_is_ram_type(mfn_x(page_to_mfn(pg)), RAM_TYPE_CONVENTIONAL)); ASSERT(spin_is_locked(&heap_lock)); do { @@ -1533,7 +1541,7 @@ int offline_page(unsigned long mfn, int broken, uint32_t *status) } *status = 0; - pg = mfn_to_page(mfn); + pg = mfn_to_page(_mfn(mfn)); if ( is_xen_fixed_mfn(mfn) ) { @@ -1640,7 +1648,7 @@ unsigned int online_page(unsigned long mfn, uint32_t *status) return -EINVAL; } - pg = mfn_to_page(mfn); + pg = mfn_to_page(_mfn(mfn)); spin_lock(&heap_lock); @@ -1694,7 +1702,7 @@ int query_page_offline(unsigned long mfn, uint32_t *status) *status = 0; spin_lock(&heap_lock); - pg = mfn_to_page(mfn); + pg = mfn_to_page(_mfn(mfn)); if ( page_state_is(pg, offlining) ) *status |= PG_OFFLINE_STATUS_OFFLINE_PENDING; @@ -1726,7 +1734,7 @@ static void init_heap_pages( * Update first_valid_mfn to ensure those regions are covered. */ spin_lock(&heap_lock); - first_valid_mfn = min_t(unsigned long, page_to_mfn(pg), first_valid_mfn); + first_valid_mfn = mfn_min(page_to_mfn(pg), first_valid_mfn); spin_unlock(&heap_lock); for ( i = 0; i < nr_pages; i++ ) @@ -1735,14 +1743,14 @@ static void init_heap_pages( if ( unlikely(!avail[nid]) ) { - unsigned long s = page_to_mfn(pg + i); - unsigned long e = page_to_mfn(pg + nr_pages - 1) + 1; + unsigned long s = mfn_x(page_to_mfn(pg + i)); + unsigned long e = mfn_x(mfn_add(page_to_mfn(pg + nr_pages - 1), 1)); bool_t use_tail = (nid == phys_to_nid(pfn_to_paddr(e - 1))) && !(s & ((1UL << MAX_ORDER) - 1)) && (find_first_set_bit(e) <= find_first_set_bit(s)); unsigned long n; - n = init_node_heap(nid, page_to_mfn(pg+i), nr_pages - i, + n = init_node_heap(nid, mfn_x(page_to_mfn(pg + i)), nr_pages - i, &use_tail); BUG_ON(i + n > nr_pages); if ( n && !use_tail ) @@ -1796,7 +1804,7 @@ void __init end_boot_allocator(void) if ( (r->s < r->e) && (phys_to_nid(pfn_to_paddr(r->s)) == cpu_to_node(0)) ) { - init_heap_pages(mfn_to_page(r->s), r->e - r->s); + init_heap_pages(mfn_to_page(_mfn(r->s)), r->e - r->s); r->e = r->s; break; } @@ -1805,7 +1813,7 @@ void __init end_boot_allocator(void) { struct bootmem_region *r = &bootmem_region_list[i]; if ( r->s < r->e ) - init_heap_pages(mfn_to_page(r->s), r->e - r->s); + init_heap_pages(mfn_to_page(_mfn(r->s)), r->e - r->s); } nr_bootmem_regions = 0; init_heap_pages(virt_to_page(bootmem_region_list), 1); @@ -1862,7 +1870,7 @@ static void __init smp_scrub_heap_pages(void *data) for ( mfn = start; mfn < end; mfn++ ) { - pg = mfn_to_page(mfn); + pg = mfn_to_page(_mfn(mfn)); /* Check the mfn is valid and page is free. */ if ( !mfn_valid(_mfn(mfn)) || !page_state_is(pg, free) ) @@ -1915,7 +1923,7 @@ static void __init scrub_heap_pages(void) if ( !node_spanned_pages(i) ) continue; /* Calculate Node memory start and end address. */ - start = max(node_start_pfn(i), first_valid_mfn); + start = max(node_start_pfn(i), mfn_x(first_valid_mfn)); end = min(node_start_pfn(i) + node_spanned_pages(i), max_page); /* Just in case NODE has 1 page and starts below first_valid_mfn. */ end = max(end, start); @@ -2159,17 +2167,17 @@ void free_xenheap_pages(void *v, unsigned int order) void init_domheap_pages(paddr_t ps, paddr_t pe) { - unsigned long smfn, emfn; + mfn_t smfn, emfn; ASSERT(!in_irq()); - smfn = round_pgup(ps) >> PAGE_SHIFT; - emfn = round_pgdown(pe) >> PAGE_SHIFT; + smfn = maddr_to_mfn(round_pgup(ps)); + emfn = maddr_to_mfn(round_pgup(pe)); - if ( emfn <= smfn ) + if ( mfn_x(emfn) <= mfn_x(smfn) ) return; - init_heap_pages(mfn_to_page(smfn), emfn - smfn); + init_heap_pages(mfn_to_page(smfn), mfn_x(emfn) - mfn_x(smfn)); } diff --git a/xen/include/asm-arm/numa.h b/xen/include/asm-arm/numa.h index 7e0b69413d..490d1f31aa 100644 --- a/xen/include/asm-arm/numa.h +++ b/xen/include/asm-arm/numa.h @@ -1,6 +1,8 @@ #ifndef __ARCH_ARM_NUMA_H #define __ARCH_ARM_NUMA_H +#include + typedef u8 nodeid_t; /* Fake one node for now. See also node_online_map. */ @@ -16,11 +18,11 @@ static inline __attribute__((pure)) nodeid_t phys_to_nid(paddr_t addr) * TODO: make first_valid_mfn static when NUMA is supported on Arm, this * is required because the dummy helpers are using it. */ -extern unsigned long first_valid_mfn; +extern mfn_t first_valid_mfn; /* XXX: implement NUMA support */ -#define node_spanned_pages(nid) (max_page - first_valid_mfn) -#define node_start_pfn(nid) (first_valid_mfn) +#define node_spanned_pages(nid) (max_page - mfn_x(first_valid_mfn)) +#define node_start_pfn(nid) (mfn_x(first_valid_mfn)) #define __node_distance(a, b) (20) static inline unsigned int arch_get_dma_bitsize(void) From patchwork Wed Mar 14 18:20:05 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131718 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157288ljb; Wed, 14 Mar 2018 11:22:51 -0700 (PDT) X-Google-Smtp-Source: AG47ELuWY39n75gJwnpJYknlxdjQjdl51iLx9cDSet+xL1rHRJd4GFsk07TCBFhRtnFUnoAaLzUN X-Received: by 10.107.18.22 with SMTP id a22mr5583606ioj.190.1521051771212; Wed, 14 Mar 2018 11:22:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051771; cv=none; d=google.com; s=arc-20160816; b=wtX5rozZg/gXC7V9Y44pJgBsxo5shqTY3uAQk3fYjQcw3LTnxoHYNnz6BOQQUM0fKK wQ4p0nPtjITH8DR7Wv4VvoxXaUz8gF+M65NHRl5WOu+KJcnOXw1tCjXNkBW08tRPNApU G0BQcuBqOhtOXHgHCtbyRs7/Tsag1CFzS6IcgqunNFnj5g2dMlq3a/KysdZyYnBes01q OnxVlBBqw2Zx/xGiJ4YL63BxdyxkaDhDoFufxr5L8Sp8nxirMoxMTlVdSL7dlfqshBNE 4icleeW6wyFZHZHHdPuEbX5Xrm/vEZqifX7JiKOL8+O31+qF6G8yYVNXjWXymI2qwe6c /Vzw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-unsubscribe:list-id :precedence:subject:cc:references:in-reply-to:message-id:date:to :from:arc-authentication-results; bh=irJ8x/lnDc4YkVv+D9oZ456p1Fb2WV6VcB5k2ihNavI=; b=GEG01FF4DRMJ1SqioSDZU/ld6DR6t3JhRTMXEgLHWDFnbbW1myoinWaavbyhYSuh9n qMIbYxvBobm/fnmJHHGpF6ZaMx33HmuCWfggjIBbkY4XLQTi4Q6g6g9cGs9h7VdiMvum tAFkEae61hj/4FA5T7nmGQx60pRCN1Oy98cnFpEHB2Eq0oTxIBpBI/Fly8GG6hf7EYIn m8muZ3t8gfHjtSy984fjT1vaJZCGwNAFw1zPUBEajpTaN3HrETDam6pjIeuRLjoUh+Fn +5HZ19tlFDH1CsxPBgs0GQnAjGz++/21VkY9iZWCJyWYmQXm1Jflm0vUfqszBoHRhYQ5 EwIQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id p66si1938785iof.285.2018.03.14.11.22.51 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:51 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB12-00079e-KL; Wed, 14 Mar 2018 18:20:44 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB11-00070g-7L for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:43 +0000 X-Inumbo-ID: 686d0800-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 686d0800-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:43 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3231315AB; Wed, 14 Mar 2018 11:20:36 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 66AA03F53D; Wed, 14 Mar 2018 11:20:34 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:05 +0000 Message-Id: <20180314182009.14274-13-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 12/16] xen/mm: Switch common/memory.c to use typesafe MFN X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall A new helper copy_mfn_to_guest is introduced to easily to copy a MFN to the guest memory. Not functional change intended Signed-off-by: Julien Grall --- Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Stefano Stabellini Cc: Tim Deegan Cc: Wei Liu Changes in v5: - Restrict the scope of some mfn variable. Changes in v4: - Patch added --- xen/common/memory.c | 75 ++++++++++++++++++++++++++++++++--------------------- 1 file changed, 46 insertions(+), 29 deletions(-) diff --git a/xen/common/memory.c b/xen/common/memory.c index 3ed71f8f74..01f1d2dbc3 100644 --- a/xen/common/memory.c +++ b/xen/common/memory.c @@ -33,6 +33,12 @@ #include #endif +/* Override macros from asm/page.h to make them work with mfn_t */ +#undef page_to_mfn +#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) +#undef mfn_to_page +#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) + struct memop_args { /* INPUT */ struct domain *domain; /* Domain to be affected. */ @@ -95,11 +101,17 @@ static unsigned int max_order(const struct domain *d) return min(order, MAX_ORDER + 0U); } +/* Helper to copy a typesafe MFN to guest */ +#define copy_mfn_to_guest(hnd, off, mfn) \ + ({ \ + xen_pfn_t mfn_ = mfn_x(mfn); \ + __copy_to_guest_offset(hnd, off, &mfn_, 1); \ + }) + static void increase_reservation(struct memop_args *a) { struct page_info *page; unsigned long i; - xen_pfn_t mfn; struct domain *d = a->domain; if ( !guest_handle_is_null(a->extent_list) && @@ -132,8 +144,9 @@ static void increase_reservation(struct memop_args *a) if ( !paging_mode_translate(d) && !guest_handle_is_null(a->extent_list) ) { - mfn = page_to_mfn(page); - if ( unlikely(__copy_to_guest_offset(a->extent_list, i, &mfn, 1)) ) + mfn_t mfn = page_to_mfn(page); + + if ( unlikely(copy_mfn_to_guest(a->extent_list, i, mfn)) ) goto out; } } @@ -146,7 +159,7 @@ static void populate_physmap(struct memop_args *a) { struct page_info *page; unsigned int i, j; - xen_pfn_t gpfn, mfn; + xen_pfn_t gpfn; struct domain *d = a->domain, *curr_d = current->domain; bool need_tlbflush = false; uint32_t tlbflush_timestamp = 0; @@ -182,6 +195,8 @@ static void populate_physmap(struct memop_args *a) for ( i = a->nr_done; i < a->nr_extents; i++ ) { + mfn_t mfn; + if ( i != a->nr_done && hypercall_preempt_check() ) { a->preempted = 1; @@ -205,14 +220,15 @@ static void populate_physmap(struct memop_args *a) { if ( is_domain_direct_mapped(d) ) { - mfn = gpfn; + mfn = _mfn(gpfn); - for ( j = 0; j < (1U << a->extent_order); j++, mfn++ ) + for ( j = 0; j < (1U << a->extent_order); j++, + mfn = mfn_add(mfn, 1) ) { - if ( !mfn_valid(_mfn(mfn)) ) + if ( !mfn_valid(mfn) ) { - gdprintk(XENLOG_INFO, "Invalid mfn %#"PRI_xen_pfn"\n", - mfn); + gdprintk(XENLOG_INFO, "Invalid mfn %#"PRI_mfn"\n", + mfn_x(mfn)); goto out; } @@ -220,14 +236,14 @@ static void populate_physmap(struct memop_args *a) if ( !get_page(page, d) ) { gdprintk(XENLOG_INFO, - "mfn %#"PRI_xen_pfn" doesn't belong to d%d\n", - mfn, d->domain_id); + "mfn %#"PRI_mfn" doesn't belong to d%d\n", + mfn_x(mfn), d->domain_id); goto out; } put_page(page); } - mfn = gpfn; + mfn = _mfn(gpfn); } else { @@ -253,15 +269,15 @@ static void populate_physmap(struct memop_args *a) mfn = page_to_mfn(page); } - guest_physmap_add_page(d, _gfn(gpfn), _mfn(mfn), a->extent_order); + guest_physmap_add_page(d, _gfn(gpfn), mfn, a->extent_order); if ( !paging_mode_translate(d) ) { for ( j = 0; j < (1U << a->extent_order); j++ ) - set_gpfn_from_mfn(mfn + j, gpfn + j); + set_gpfn_from_mfn(mfn_x(mfn_add(mfn, j)), gpfn + j); /* Inform the domain of the new page's machine address. */ - if ( unlikely(__copy_to_guest_offset(a->extent_list, i, &mfn, 1)) ) + if ( unlikely(copy_mfn_to_guest(a->extent_list, i, mfn)) ) goto out; } } @@ -304,7 +320,7 @@ int guest_remove_page(struct domain *d, unsigned long gmfn) if ( p2mt == p2m_ram_paging_out ) { ASSERT(mfn_valid(mfn)); - page = mfn_to_page(mfn_x(mfn)); + page = mfn_to_page(mfn); if ( test_and_clear_bit(_PGC_allocated, &page->count_info) ) put_page(page); } @@ -349,7 +365,7 @@ int guest_remove_page(struct domain *d, unsigned long gmfn) } #endif /* CONFIG_X86 */ - page = mfn_to_page(mfn_x(mfn)); + page = mfn_to_page(mfn); if ( unlikely(!get_page(page, d)) ) { put_gfn(d, gmfn); @@ -485,7 +501,8 @@ static long memory_exchange(XEN_GUEST_HANDLE_PARAM(xen_memory_exchange_t) arg) PAGE_LIST_HEAD(in_chunk_list); PAGE_LIST_HEAD(out_chunk_list); unsigned long in_chunk_order, out_chunk_order; - xen_pfn_t gpfn, gmfn, mfn; + xen_pfn_t gpfn, gmfn; + mfn_t mfn; unsigned long i, j, k; unsigned int memflags = 0; long rc = 0; @@ -607,7 +624,7 @@ static long memory_exchange(XEN_GUEST_HANDLE_PARAM(xen_memory_exchange_t) arg) p2m_type_t p2mt; /* Shared pages cannot be exchanged */ - mfn = mfn_x(get_gfn_unshare(d, gmfn + k, &p2mt)); + mfn = get_gfn_unshare(d, gmfn + k, &p2mt); if ( p2m_is_shared(p2mt) ) { put_gfn(d, gmfn + k); @@ -615,9 +632,9 @@ static long memory_exchange(XEN_GUEST_HANDLE_PARAM(xen_memory_exchange_t) arg) goto fail; } #else /* !CONFIG_X86 */ - mfn = mfn_x(gfn_to_mfn(d, _gfn(gmfn + k))); + mfn = gfn_to_mfn(d, _gfn(gmfn + k)); #endif - if ( unlikely(!mfn_valid(_mfn(mfn))) ) + if ( unlikely(!mfn_valid(mfn)) ) { put_gfn(d, gmfn + k); rc = -EINVAL; @@ -664,10 +681,10 @@ static long memory_exchange(XEN_GUEST_HANDLE_PARAM(xen_memory_exchange_t) arg) if ( !test_and_clear_bit(_PGC_allocated, &page->count_info) ) BUG(); mfn = page_to_mfn(page); - gfn = mfn_to_gmfn(d, mfn); + gfn = mfn_to_gmfn(d, mfn_x(mfn)); /* Pages were unshared above */ BUG_ON(SHARED_M2P(gfn)); - if ( guest_physmap_remove_page(d, _gfn(gfn), _mfn(mfn), 0) ) + if ( guest_physmap_remove_page(d, _gfn(gfn), mfn, 0) ) domain_crash(d); put_page(page); } @@ -712,16 +729,16 @@ static long memory_exchange(XEN_GUEST_HANDLE_PARAM(xen_memory_exchange_t) arg) } mfn = page_to_mfn(page); - guest_physmap_add_page(d, _gfn(gpfn), _mfn(mfn), + guest_physmap_add_page(d, _gfn(gpfn), mfn, exch.out.extent_order); if ( !paging_mode_translate(d) ) { for ( k = 0; k < (1UL << exch.out.extent_order); k++ ) - set_gpfn_from_mfn(mfn + k, gpfn + k); - if ( __copy_to_guest_offset(exch.out.extent_start, - (i << out_chunk_order) + j, - &mfn, 1) ) + set_gpfn_from_mfn(mfn_x(mfn_add(mfn, k)), gpfn + k); + if ( copy_mfn_to_guest(exch.out.extent_start, + (i << out_chunk_order) + j, + mfn) ) rc = -EFAULT; } } @@ -1216,7 +1233,7 @@ long do_memory_op(unsigned long cmd, XEN_GUEST_HANDLE_PARAM(void) arg) if ( page ) { rc = guest_physmap_remove_page(d, _gfn(xrfp.gpfn), - _mfn(page_to_mfn(page)), 0); + page_to_mfn(page), 0); put_page(page); } else From patchwork Wed Mar 14 18:20:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131717 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157269ljb; Wed, 14 Mar 2018 11:22:49 -0700 (PDT) X-Google-Smtp-Source: AG47ELuBmd4I6LPeaUmpymUYY+YmOMOL5E9TYDEPb8lwFnt4isazi+GVPa9gtXptKXWWaIvhIEeh X-Received: by 2002:a24:2e4e:: with SMTP id i75-v6mr2998816ita.96.1521051769680; Wed, 14 Mar 2018 11:22:49 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051769; cv=none; d=google.com; s=arc-20160816; b=vhF4M6YboQzqKRx4q72a9n2NYoXsME0WSdS4DaIRzcq7I3/+T8Qau2taCfHnMz0WnV bgEvnoqxrOzpEdEZO9SU0CGrudqw/ILVCV7nLwibn7Om6pmJfpjUKDRKZ5Urw0ABk578 SPl8ja8h0elVzcq4gx5ydA39fgANNKLYpR5dFq/8x6SBQA1H3aSUW7+CZvj8vglvuUBp F/b41pAYK8sLJRHANkvZaFXgS/2q2IhaoIkhzBLCrqJuz80TO7OpFFic2Z/oIGkRnanU y/0sRGSI6aE1N/zRCwGu7M6Nk0ZZv5SLxTc73uyoRboZ+qvdMb6TyMrWOB7MKygOsI0n tpgg== ARC-Message-Signature: i=1; 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[192.237.175.120]) by mx.google.com with ESMTPS id k81si2037211iof.200.2018.03.14.11.22.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:49 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB14-0007Cg-6k; Wed, 14 Mar 2018 18:20:46 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB13-00073o-AT for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:45 +0000 X-Inumbo-ID: 69a51c47-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 69a51c47-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:45 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3D948164F; Wed, 14 Mar 2018 11:20:38 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 725B03F53D; Wed, 14 Mar 2018 11:20:36 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:06 +0000 Message-Id: <20180314182009.14274-14-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 13/16] xen/grant: Switch {create, replace}_grant_p2m_mapping to typesafe MFN X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall The current prototype is slightly confusing because it takes a guest physical address and a machine physical frame (not address!). Switching to MFN will improve safety and reduce the chance to mistakenly invert the 2 parameters. Signed-off-by: Julien grall Reviewed-by: Wei Liu Reviewed-by: Jan Beulich --- Cc: Stefano Stabellini Cc: Julien Grall Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Tim Deegan Cc: Wei Liu Changes in v5: - Add Wei's and Jan's reviewed-by Changes in v4: - Patch added --- xen/arch/arm/mm.c | 10 +++++----- xen/arch/x86/hvm/grant_table.c | 14 +++++++------- xen/arch/x86/pv/grant_table.c | 10 +++++----- xen/common/grant_table.c | 8 ++++---- xen/include/asm-arm/grant_table.h | 9 ++++----- xen/include/asm-x86/grant_table.h | 4 ++-- xen/include/asm-x86/hvm/grant_table.h | 8 ++++---- xen/include/asm-x86/pv/grant_table.h | 8 ++++---- 8 files changed, 35 insertions(+), 36 deletions(-) diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index f17907ace8..4268dd5c2d 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -1423,7 +1423,7 @@ void gnttab_mark_dirty(struct domain *d, unsigned long l) } } -int create_grant_host_mapping(unsigned long addr, unsigned long frame, +int create_grant_host_mapping(unsigned long addr, mfn_t frame, unsigned int flags, unsigned int cache_flags) { int rc; @@ -1436,7 +1436,7 @@ int create_grant_host_mapping(unsigned long addr, unsigned long frame, t = p2m_grant_map_ro; rc = guest_physmap_add_entry(current->domain, gaddr_to_gfn(addr), - _mfn(frame), 0, t); + frame, 0, t); if ( rc ) return GNTST_general_error; @@ -1444,8 +1444,8 @@ int create_grant_host_mapping(unsigned long addr, unsigned long frame, return GNTST_okay; } -int replace_grant_host_mapping(unsigned long addr, unsigned long mfn, - unsigned long new_addr, unsigned int flags) +int replace_grant_host_mapping(unsigned long addr, mfn_t mfn, + unsigned long new_addr, unsigned int flags) { gfn_t gfn = gaddr_to_gfn(addr); struct domain *d = current->domain; @@ -1454,7 +1454,7 @@ int replace_grant_host_mapping(unsigned long addr, unsigned long mfn, if ( new_addr != 0 || (flags & GNTMAP_contains_pte) ) return GNTST_general_error; - rc = guest_physmap_remove_page(d, gfn, _mfn(mfn), 0); + rc = guest_physmap_remove_page(d, gfn, mfn, 0); return rc ? GNTST_general_error : GNTST_okay; } diff --git a/xen/arch/x86/hvm/grant_table.c b/xen/arch/x86/hvm/grant_table.c index 9ca9fe0425..ecd7d078ab 100644 --- a/xen/arch/x86/hvm/grant_table.c +++ b/xen/arch/x86/hvm/grant_table.c @@ -25,7 +25,7 @@ #include -int create_grant_p2m_mapping(uint64_t addr, unsigned long frame, +int create_grant_p2m_mapping(uint64_t addr, mfn_t frame, unsigned int flags, unsigned int cache_flags) { @@ -41,14 +41,14 @@ int create_grant_p2m_mapping(uint64_t addr, unsigned long frame, p2mt = p2m_grant_map_rw; rc = guest_physmap_add_entry(current->domain, _gfn(addr >> PAGE_SHIFT), - _mfn(frame), PAGE_ORDER_4K, p2mt); + frame, PAGE_ORDER_4K, p2mt); if ( rc ) return GNTST_general_error; else return GNTST_okay; } -int replace_grant_p2m_mapping(uint64_t addr, unsigned long frame, +int replace_grant_p2m_mapping(uint64_t addr, mfn_t frame, uint64_t new_addr, unsigned int flags) { unsigned long gfn = (unsigned long)(addr >> PAGE_SHIFT); @@ -60,15 +60,15 @@ int replace_grant_p2m_mapping(uint64_t addr, unsigned long frame, return GNTST_general_error; old_mfn = get_gfn(d, gfn, &type); - if ( !p2m_is_grant(type) || mfn_x(old_mfn) != frame ) + if ( !p2m_is_grant(type) || !mfn_eq(old_mfn, frame) ) { put_gfn(d, gfn); gdprintk(XENLOG_WARNING, - "old mapping invalid (type %d, mfn %" PRI_mfn ", frame %lx)\n", - type, mfn_x(old_mfn), frame); + "old mapping invalid (type %d, mfn %" PRI_mfn ", frame %"PRI_mfn")\n", + type, mfn_x(old_mfn), mfn_x(frame)); return GNTST_general_error; } - if ( guest_physmap_remove_page(d, _gfn(gfn), _mfn(frame), PAGE_ORDER_4K) ) + if ( guest_physmap_remove_page(d, _gfn(gfn), frame, PAGE_ORDER_4K) ) { put_gfn(d, gfn); return GNTST_general_error; diff --git a/xen/arch/x86/pv/grant_table.c b/xen/arch/x86/pv/grant_table.c index 4dbc550366..458085e1b6 100644 --- a/xen/arch/x86/pv/grant_table.c +++ b/xen/arch/x86/pv/grant_table.c @@ -50,7 +50,7 @@ static unsigned int grant_to_pte_flags(unsigned int grant_flags, return pte_flags; } -int create_grant_pv_mapping(uint64_t addr, unsigned long frame, +int create_grant_pv_mapping(uint64_t addr, mfn_t frame, unsigned int flags, unsigned int cache_flags) { struct vcpu *curr = current; @@ -60,7 +60,7 @@ int create_grant_pv_mapping(uint64_t addr, unsigned long frame, mfn_t gl1mfn; int rc = GNTST_general_error; - nl1e = l1e_from_pfn(frame, grant_to_pte_flags(flags, cache_flags)); + nl1e = l1e_from_mfn(frame, grant_to_pte_flags(flags, cache_flags)); nl1e = adjust_guest_l1e(nl1e, currd); /* @@ -192,7 +192,7 @@ static bool steal_linear_address(unsigned long linear, l1_pgentry_t *out) * new_addr has only ever been available via GNTABOP_unmap_and_replace, and * only when !(flags & GNTMAP_contains_pte). */ -int replace_grant_pv_mapping(uint64_t addr, unsigned long frame, +int replace_grant_pv_mapping(uint64_t addr, mfn_t frame, uint64_t new_addr, unsigned int flags) { struct vcpu *curr = current; @@ -282,14 +282,14 @@ int replace_grant_pv_mapping(uint64_t addr, unsigned long frame, * Check that the address supplied is actually mapped to frame (with * appropriate permissions). */ - if ( unlikely(l1e_get_pfn(ol1e) != frame) || + if ( unlikely(!mfn_eq(l1e_get_mfn(ol1e), frame)) || unlikely((l1e_get_flags(ol1e) ^ grant_pte_flags) & (_PAGE_PRESENT | _PAGE_RW)) ) { gdprintk(XENLOG_ERR, "PTE %"PRIpte" for %"PRIx64" doesn't match grant (%"PRIpte")\n", l1e_get_intpte(ol1e), addr, - l1e_get_intpte(l1e_from_pfn(frame, grant_pte_flags))); + l1e_get_intpte(l1e_from_mfn(frame, grant_pte_flags))); goto out_unlock; } diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c index 18201912e4..f9e3d1bb95 100644 --- a/xen/common/grant_table.c +++ b/xen/common/grant_table.c @@ -1071,7 +1071,7 @@ map_grant_ref( if ( op->flags & GNTMAP_host_map ) { - rc = create_grant_host_mapping(op->host_addr, frame, op->flags, + rc = create_grant_host_mapping(op->host_addr, _mfn(frame), op->flags, cache_flags); if ( rc != GNTST_okay ) goto undo_out; @@ -1111,7 +1111,7 @@ map_grant_ref( typecnt++; } - rc = create_grant_host_mapping(op->host_addr, frame, op->flags, 0); + rc = create_grant_host_mapping(op->host_addr, _mfn(frame), op->flags, 0); if ( rc != GNTST_okay ) goto undo_out; @@ -1188,7 +1188,7 @@ map_grant_ref( undo_out: if ( host_map_created ) { - replace_grant_host_mapping(op->host_addr, frame, 0, op->flags); + replace_grant_host_mapping(op->host_addr, _mfn(frame), 0, op->flags); gnttab_flush_tlb(ld); } @@ -1374,7 +1374,7 @@ unmap_common( if ( op->host_addr && (flags & GNTMAP_host_map) ) { if ( (rc = replace_grant_host_mapping(op->host_addr, - op->frame, op->new_addr, + _mfn(op->frame), op->new_addr, flags)) < 0 ) goto act_release_out; diff --git a/xen/include/asm-arm/grant_table.h b/xen/include/asm-arm/grant_table.h index 5b8994cbd5..b05e5ca22d 100644 --- a/xen/include/asm-arm/grant_table.h +++ b/xen/include/asm-arm/grant_table.h @@ -14,12 +14,11 @@ struct grant_table_arch { }; void gnttab_clear_flag(unsigned long nr, uint16_t *addr); -int create_grant_host_mapping(unsigned long gpaddr, - unsigned long mfn, unsigned int flags, unsigned int - cache_flags); +int create_grant_host_mapping(unsigned long gpaddr, mfn_t mfn, + unsigned int flags, unsigned int cache_flags); #define gnttab_host_mapping_get_page_type(ro, ld, rd) (0) -int replace_grant_host_mapping(unsigned long gpaddr, unsigned long mfn, - unsigned long new_gpaddr, unsigned int flags); +int replace_grant_host_mapping(unsigned long gpaddr, mfn_t mfn, + unsigned long new_gpaddr, unsigned int flags); void gnttab_mark_dirty(struct domain *d, unsigned long l); #define gnttab_create_status_page(d, t, i) do {} while (0) #define gnttab_release_host_mappings(domain) 1 diff --git a/xen/include/asm-x86/grant_table.h b/xen/include/asm-x86/grant_table.h index 66e9742003..05a457b7eb 100644 --- a/xen/include/asm-x86/grant_table.h +++ b/xen/include/asm-x86/grant_table.h @@ -21,7 +21,7 @@ struct grant_table_arch { * Caller must own caller's BIGLOCK, is responsible for flushing the TLB, and * must hold a reference to the page. */ -static inline int create_grant_host_mapping(uint64_t addr, unsigned long frame, +static inline int create_grant_host_mapping(uint64_t addr, mfn_t frame, unsigned int flags, unsigned int cache_flags) { @@ -30,7 +30,7 @@ static inline int create_grant_host_mapping(uint64_t addr, unsigned long frame, return create_grant_pv_mapping(addr, frame, flags, cache_flags); } -static inline int replace_grant_host_mapping(uint64_t addr, unsigned long frame, +static inline int replace_grant_host_mapping(uint64_t addr, mfn_t frame, uint64_t new_addr, unsigned int flags) { diff --git a/xen/include/asm-x86/hvm/grant_table.h b/xen/include/asm-x86/hvm/grant_table.h index 711ce9b560..a5612585b3 100644 --- a/xen/include/asm-x86/hvm/grant_table.h +++ b/xen/include/asm-x86/hvm/grant_table.h @@ -23,24 +23,24 @@ #ifdef CONFIG_HVM -int create_grant_p2m_mapping(uint64_t addr, unsigned long frame, +int create_grant_p2m_mapping(uint64_t addr, mfn_t frame, unsigned int flags, unsigned int cache_flags); -int replace_grant_p2m_mapping(uint64_t addr, unsigned long frame, +int replace_grant_p2m_mapping(uint64_t addr, mfn_t frame, uint64_t new_addr, unsigned int flags); #else #include -static inline int create_grant_p2m_mapping(uint64_t addr, unsigned long frame, +static inline int create_grant_p2m_mapping(uint64_t addr, mfn_t frame, unsigned int flags, unsigned int cache_flags) { return GNTST_general_error; } -static inline int replace_grant_p2m_mapping(uint64_t addr, unsigned long frame, +static inline int replace_grant_p2m_mapping(uint64_t addr, mfn_t frame, uint64_t new_addr, unsigned int flags) { return GNTST_general_error; diff --git a/xen/include/asm-x86/pv/grant_table.h b/xen/include/asm-x86/pv/grant_table.h index 556e68f0eb..85442b6074 100644 --- a/xen/include/asm-x86/pv/grant_table.h +++ b/xen/include/asm-x86/pv/grant_table.h @@ -23,23 +23,23 @@ #ifdef CONFIG_PV -int create_grant_pv_mapping(uint64_t addr, unsigned long frame, +int create_grant_pv_mapping(uint64_t addr, mfn_t frame, unsigned int flags, unsigned int cache_flags); -int replace_grant_pv_mapping(uint64_t addr, unsigned long frame, +int replace_grant_pv_mapping(uint64_t addr, mfn_t frame, uint64_t new_addr, unsigned int flags); #else #include -static inline int create_grant_pv_mapping(uint64_t addr, unsigned long frame, +static inline int create_grant_pv_mapping(uint64_t addr, mfn_t frame, unsigned int flags, unsigned int cache_flags) { return GNTST_general_error; } -static inline int replace_grant_pv_mapping(uint64_t addr, unsigned long frame, +static inline int replace_grant_pv_mapping(uint64_t addr, mfn_t frame, uint64_t new_addr, unsigned int flags) { return GNTST_general_error; From patchwork Wed Mar 14 18:20:07 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131722 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157757ljb; Wed, 14 Mar 2018 11:23:25 -0700 (PDT) X-Google-Smtp-Source: AG47ELu7xxZYndPGRdclUf4FNBdtxrDmFwarRA6fZs5sLFnp93FIoyE64mZUjU4CuH9HggkhF23O X-Received: by 2002:a24:b652:: with SMTP id d18-v6mr3065918itj.87.1521051804995; Wed, 14 Mar 2018 11:23:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051804; cv=none; d=google.com; s=arc-20160816; b=gNT/ezuFNR2jMzTLYxPIxz9KvoF3DKgPhV6nNWnJlinJ4qXqdQHdX0IJiHptQ+3VnN 2Ky3DVBiwFMxGxdLK9te8LZHg9StgKbRJaM/vhFuI09MWHzsO7cRDtsB5xCB0i432WP8 QA3S9zCgRapG4dT13TxrzKASVbfuByl3z7eVpD48Tdv29vfwYTZWI54nqiJHLk8TJfUA 05Paz4dB7gwpkXBWOQE3vXQmtVWX3n0PDRtxN93lvz3sNWHFwEeXMsl4xWGPQED/Al0L wWoXG+OYAUSl4w3HEijhbLTtqpTFMh6xH5sRhPiP28SIRAo17GKGWll7SNY0aSMXyFdq 4JQQ== ARC-Message-Signature: i=1; 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[192.237.175.120]) by mx.google.com with ESMTPS id d184-v6si1183949ite.158.2018.03.14.11.23.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:23:24 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB11-00076w-4q; Wed, 14 Mar 2018 18:20:43 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB10-000760-6L for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:42 +0000 X-Inumbo-ID: 6475e5b2-27b4-11e8-9728-bc764e045a96 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTP id 6475e5b2-27b4-11e8-9728-bc764e045a96; Wed, 14 Mar 2018 19:20:36 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6C9AD80D; Wed, 14 Mar 2018 11:20:40 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7D8533F53D; Wed, 14 Mar 2018 11:20:38 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:07 +0000 Message-Id: <20180314182009.14274-15-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Stefano Stabellini , Wei Liu , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 14/16] xen/grant: Switch common/grant_table.c to use typesafe MFN X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall At the same time replace _mfn(0) by INVALID_MFN or drop the initializer when it is not necessary. This will make clearer that the MFN initialized is not valid. Other than _mfn(0) -> INVALID_MFN, no functional change intended. Signed-off-by: Julien Grall Reviewed-by: Jan Beulich Reviewed-by: Wei Liu --- Cc: Stefano Stabellini Cc: Julien Grall Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Tim Deegan Cc: Wei Liu Changes in v5: - Remove _mfn(0) when not needed or replace by INVALID_MFN. Changes in v4: - Patch added --- xen/arch/arm/mm.c | 2 +- xen/common/grant_table.c | 147 ++++++++++++++++++++------------------ xen/include/asm-arm/grant_table.h | 2 +- xen/include/asm-x86/grant_table.h | 2 +- 4 files changed, 82 insertions(+), 71 deletions(-) diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index 4268dd5c2d..db74466a16 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -1413,7 +1413,7 @@ void gnttab_clear_flag(unsigned long nr, uint16_t *addr) } while (cmpxchg(addr, old, old & mask) != old); } -void gnttab_mark_dirty(struct domain *d, unsigned long l) +void gnttab_mark_dirty(struct domain *d, mfn_t mfn) { /* XXX: mark dirty */ static int warning; diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c index f9e3d1bb95..4bedf5984a 100644 --- a/xen/common/grant_table.c +++ b/xen/common/grant_table.c @@ -40,6 +40,12 @@ #include #include +/* Override macros from asm/page.h to make them work with mfn_t */ +#undef page_to_mfn +#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) +#undef mfn_to_page +#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) + /* Per-domain grant information. */ struct grant_table { /* @@ -167,7 +173,7 @@ struct gnttab_unmap_common { /* Shared state beteen *_unmap and *_unmap_complete */ uint16_t done; - unsigned long frame; + mfn_t frame; struct domain *rd; grant_ref_t ref; }; @@ -266,7 +272,7 @@ struct active_grant_entry { grant. */ grant_ref_t trans_gref; struct domain *trans_domain; - unsigned long frame; /* Frame being granted. */ + mfn_t frame; /* Frame being granted. */ #ifndef NDEBUG gfn_t gfn; /* Guest's idea of the frame being granted. */ #endif @@ -371,14 +377,14 @@ static inline unsigned int grant_to_status_frames(unsigned int grant_frames) If rc == GNTST_okay, *page contains the page struct with a ref taken. Caller must do put_page(*page). If any error, *page = NULL, *frame = INVALID_MFN, no ref taken. */ -static int get_paged_frame(unsigned long gfn, unsigned long *frame, +static int get_paged_frame(unsigned long gfn, mfn_t *frame, struct page_info **page, bool readonly, struct domain *rd) { int rc = GNTST_okay; p2m_type_t p2mt; - *frame = mfn_x(INVALID_MFN); + *frame = INVALID_MFN; *page = get_page_from_gfn(rd, gfn, &p2mt, readonly ? P2M_ALLOC : P2M_UNSHARE); if ( !*page ) @@ -823,7 +829,7 @@ static int _set_status(unsigned gt_version, static struct active_grant_entry *grant_map_exists(const struct domain *ld, struct grant_table *rgt, - unsigned long mfn, + mfn_t mfn, grant_ref_t *cur_ref) { grant_ref_t ref, max_iter; @@ -842,7 +848,8 @@ static struct active_grant_entry *grant_map_exists(const struct domain *ld, { struct active_grant_entry *act = active_entry_acquire(rgt, ref); - if ( act->pin && act->domid == ld->domain_id && act->frame == mfn ) + if ( act->pin && act->domid == ld->domain_id && + mfn_eq(act->frame, mfn) ) return act; active_entry_release(act); } @@ -859,7 +866,7 @@ static struct active_grant_entry *grant_map_exists(const struct domain *ld, #define MAPKIND_READ 1 #define MAPKIND_WRITE 2 static unsigned int mapkind( - struct grant_table *lgt, const struct domain *rd, unsigned long mfn) + struct grant_table *lgt, const struct domain *rd, mfn_t mfn) { struct grant_mapping *map; grant_handle_t handle, limit = lgt->maptrack_limit; @@ -884,7 +891,7 @@ static unsigned int mapkind( if ( !(map->flags & (GNTMAP_device_map|GNTMAP_host_map)) || map->domid != rd->domain_id ) continue; - if ( _active_entry(rd->grant_table, map->ref).frame == mfn ) + if ( mfn_eq(_active_entry(rd->grant_table, map->ref).frame, mfn) ) kind |= map->flags & GNTMAP_readonly ? MAPKIND_READ : MAPKIND_WRITE; } @@ -907,7 +914,7 @@ map_grant_ref( struct grant_table *lgt, *rgt; struct vcpu *led; grant_handle_t handle; - unsigned long frame = 0; + mfn_t frame; struct page_info *pg = NULL; int rc = GNTST_okay; u32 old_pin; @@ -1034,7 +1041,7 @@ map_grant_ref( /* pg may be set, with a refcount included, from get_paged_frame(). */ if ( !pg ) { - pg = mfn_valid(_mfn(frame)) ? mfn_to_page(frame) : NULL; + pg = mfn_valid(frame) ? mfn_to_page(frame) : NULL; if ( pg ) owner = page_get_owner_and_reference(pg); } @@ -1060,18 +1067,18 @@ map_grant_ref( goto undo_out; } - if ( !iomem_access_permitted(rd, frame, frame) ) + if ( !iomem_access_permitted(rd, mfn_x(frame), mfn_x(frame)) ) { gdprintk(XENLOG_WARNING, - "Iomem mapping not permitted %lx (domain %d)\n", - frame, rd->domain_id); + "Iomem mapping not permitted %#"PRI_mfn" (domain %d)\n", + mfn_x(frame), rd->domain_id); rc = GNTST_general_error; goto undo_out; } if ( op->flags & GNTMAP_host_map ) { - rc = create_grant_host_mapping(op->host_addr, _mfn(frame), op->flags, + rc = create_grant_host_mapping(op->host_addr, frame, op->flags, cache_flags); if ( rc != GNTST_okay ) goto undo_out; @@ -1111,7 +1118,7 @@ map_grant_ref( typecnt++; } - rc = create_grant_host_mapping(op->host_addr, _mfn(frame), op->flags, 0); + rc = create_grant_host_mapping(op->host_addr, frame, op->flags, 0); if ( rc != GNTST_okay ) goto undo_out; @@ -1122,8 +1129,8 @@ map_grant_ref( { could_not_pin: if ( !rd->is_dying ) - gdprintk(XENLOG_WARNING, "Could not pin grant frame %lx\n", - frame); + gdprintk(XENLOG_WARNING, "Could not pin grant frame %#"PRI_mfn"\n", + mfn_x(frame)); rc = GNTST_general_error; goto undo_out; } @@ -1143,13 +1150,14 @@ map_grant_ref( !(old_pin & (GNTPIN_hstw_mask|GNTPIN_devw_mask)) ) { if ( !(kind & MAPKIND_WRITE) ) - err = iommu_map_page(ld, frame, frame, + err = iommu_map_page(ld, mfn_x(frame), mfn_x(frame), IOMMUF_readable|IOMMUF_writable); } else if ( act_pin && !old_pin ) { if ( !kind ) - err = iommu_map_page(ld, frame, frame, IOMMUF_readable); + err = iommu_map_page(ld, mfn_x(frame), mfn_x(frame), + IOMMUF_readable); } if ( err ) { @@ -1178,7 +1186,7 @@ map_grant_ref( if ( need_iommu ) double_gt_unlock(lgt, rgt); - op->dev_bus_addr = (u64)frame << PAGE_SHIFT; + op->dev_bus_addr = mfn_to_maddr(frame); op->handle = handle; op->status = GNTST_okay; @@ -1188,7 +1196,7 @@ map_grant_ref( undo_out: if ( host_map_created ) { - replace_grant_host_mapping(op->host_addr, _mfn(frame), 0, op->flags); + replace_grant_host_mapping(op->host_addr, frame, 0, op->flags); gnttab_flush_tlb(ld); } @@ -1366,15 +1374,15 @@ unmap_common( op->frame = act->frame; if ( op->dev_bus_addr && - unlikely(op->dev_bus_addr != pfn_to_paddr(act->frame)) ) + unlikely(op->dev_bus_addr != mfn_to_maddr(act->frame)) ) PIN_FAIL(act_release_out, GNTST_general_error, "Bus address doesn't match gntref (%"PRIx64" != %"PRIpaddr")\n", - op->dev_bus_addr, pfn_to_paddr(act->frame)); + op->dev_bus_addr, mfn_to_maddr(act->frame)); if ( op->host_addr && (flags & GNTMAP_host_map) ) { if ( (rc = replace_grant_host_mapping(op->host_addr, - _mfn(op->frame), op->new_addr, + op->frame, op->new_addr, flags)) < 0 ) goto act_release_out; @@ -1411,9 +1419,10 @@ unmap_common( kind = mapkind(lgt, rd, op->frame); if ( !kind ) - err = iommu_unmap_page(ld, op->frame); + err = iommu_unmap_page(ld, mfn_x(op->frame)); else if ( !(kind & MAPKIND_WRITE) ) - err = iommu_map_page(ld, op->frame, op->frame, IOMMUF_readable); + err = iommu_map_page(ld, mfn_x(op->frame), + mfn_x(op->frame), IOMMUF_readable); double_gt_unlock(lgt, rgt); @@ -1464,7 +1473,7 @@ unmap_common_complete(struct gnttab_unmap_common *op) if ( op->done & GNTMAP_device_map ) { - if ( !is_iomem_page(_mfn(act->frame)) ) + if ( !is_iomem_page(act->frame) ) { if ( op->done & GNTMAP_readonly ) put_page(pg); @@ -1481,7 +1490,7 @@ unmap_common_complete(struct gnttab_unmap_common *op) if ( op->done & GNTMAP_host_map ) { - if ( !is_iomem_page(_mfn(op->frame)) ) + if ( !is_iomem_page(op->frame) ) { if ( gnttab_host_mapping_get_page_type(op->done & GNTMAP_readonly, ld, rd) ) @@ -1522,7 +1531,7 @@ unmap_grant_ref( common->done = 0; common->new_addr = 0; common->rd = NULL; - common->frame = 0; + common->frame = INVALID_MFN; unmap_common(common); op->status = common->status; @@ -1588,7 +1597,7 @@ unmap_and_replace( common->done = 0; common->dev_bus_addr = 0; common->rd = NULL; - common->frame = 0; + common->frame = INVALID_MFN; unmap_common(common); op->status = common->status; @@ -1692,7 +1701,7 @@ gnttab_unpopulate_status_frames(struct domain *d, struct grant_table *gt) int rc = gfn_eq(gfn, INVALID_GFN) ? 0 : guest_physmap_remove_page(d, gfn, - _mfn(page_to_mfn(pg)), 0); + page_to_mfn(pg), 0); if ( rc ) { @@ -2097,7 +2106,7 @@ gnttab_transfer( struct page_info *page; int i; struct gnttab_transfer gop; - unsigned long mfn; + mfn_t mfn; unsigned int max_bitsize; struct active_grant_entry *act; @@ -2121,16 +2130,16 @@ gnttab_transfer( { p2m_type_t p2mt; - mfn = mfn_x(get_gfn_unshare(d, gop.mfn, &p2mt)); + mfn = get_gfn_unshare(d, gop.mfn, &p2mt); if ( p2m_is_shared(p2mt) || !p2m_is_valid(p2mt) ) - mfn = mfn_x(INVALID_MFN); + mfn = INVALID_MFN; } #else - mfn = mfn_x(gfn_to_mfn(d, _gfn(gop.mfn))); + mfn = gfn_to_mfn(d, _gfn(gop.mfn)); #endif /* Check the passed page frame for basic validity. */ - if ( unlikely(!mfn_valid(_mfn(mfn))) ) + if ( unlikely(!mfn_valid(mfn)) ) { put_gfn(d, gop.mfn); gdprintk(XENLOG_INFO, "out-of-range %lx\n", (unsigned long)gop.mfn); @@ -2146,12 +2155,13 @@ gnttab_transfer( goto copyback; } - rc = guest_physmap_remove_page(d, _gfn(gop.mfn), _mfn(mfn), 0); + rc = guest_physmap_remove_page(d, _gfn(gop.mfn), mfn, 0); gnttab_flush_tlb(d); if ( rc ) { - gdprintk(XENLOG_INFO, "can't remove GFN %"PRI_xen_pfn" (MFN %lx)\n", - gop.mfn, mfn); + gdprintk(XENLOG_INFO, + "can't remove GFN %"PRI_xen_pfn" (MFN %#"PRI_mfn")\n", + gop.mfn, mfn_x(mfn)); gop.status = GNTST_general_error; goto put_gfn_and_copyback; } @@ -2180,7 +2190,7 @@ gnttab_transfer( e, e->grant_table->gt_version > 1 || paging_mode_translate(e) ? BITS_PER_LONG + PAGE_SHIFT : 32 + PAGE_SHIFT); if ( max_bitsize < BITS_PER_LONG + PAGE_SHIFT && - (mfn >> (max_bitsize - PAGE_SHIFT)) ) + (mfn_x(mfn) >> (max_bitsize - PAGE_SHIFT)) ) { struct page_info *new_page; @@ -2192,7 +2202,7 @@ gnttab_transfer( goto unlock_and_copyback; } - copy_domain_page(_mfn(page_to_mfn(new_page)), _mfn(mfn)); + copy_domain_page(page_to_mfn(new_page), mfn); page->count_info &= ~(PGC_count_mask|PGC_allocated); free_domheap_page(page); @@ -2269,18 +2279,17 @@ gnttab_transfer( { grant_entry_v1_t *sha = &shared_entry_v1(e->grant_table, gop.ref); - guest_physmap_add_page(e, _gfn(sha->frame), _mfn(mfn), 0); + guest_physmap_add_page(e, _gfn(sha->frame), mfn, 0); if ( !paging_mode_translate(e) ) - sha->frame = mfn; + sha->frame = mfn_x(mfn); } else { grant_entry_v2_t *sha = &shared_entry_v2(e->grant_table, gop.ref); - guest_physmap_add_page(e, _gfn(sha->full_page.frame), - _mfn(mfn), 0); + guest_physmap_add_page(e, _gfn(sha->full_page.frame), mfn, 0); if ( !paging_mode_translate(e) ) - sha->full_page.frame = mfn; + sha->full_page.frame = mfn_x(mfn); } smp_wmb(); shared_entry_header(e->grant_table, gop.ref)->flags |= @@ -2316,7 +2325,7 @@ release_grant_for_copy( struct grant_table *rgt = rd->grant_table; grant_entry_header_t *sha; struct active_grant_entry *act; - unsigned long r_frame; + mfn_t r_frame; uint16_t *status; grant_ref_t trans_gref; struct domain *td; @@ -2393,7 +2402,7 @@ static void fixup_status_for_copy_pin(const struct active_grant_entry *act, static int acquire_grant_for_copy( struct domain *rd, grant_ref_t gref, domid_t ldom, bool readonly, - unsigned long *frame, struct page_info **page, + mfn_t *frame, struct page_info **page, uint16_t *page_off, uint16_t *length, bool allow_transitive) { struct grant_table *rgt = rd->grant_table; @@ -2405,7 +2414,7 @@ acquire_grant_for_copy( domid_t trans_domid; grant_ref_t trans_gref; struct domain *td; - unsigned long grant_frame; + mfn_t grant_frame; uint16_t trans_page_off; uint16_t trans_length; bool is_sub_page; @@ -2506,7 +2515,8 @@ acquire_grant_for_copy( */ if ( rgt->gt_version != 2 || act->pin != old_pin || - (old_pin && (act->domid != ldom || act->frame != grant_frame || + (old_pin && (act->domid != ldom || + !mfn_eq(act->frame, grant_frame) || act->start != trans_page_off || act->length != trans_length || act->trans_domain != td || @@ -2598,7 +2608,7 @@ acquire_grant_for_copy( } else { - ASSERT(mfn_valid(_mfn(act->frame))); + ASSERT(mfn_valid(act->frame)); *page = mfn_to_page(act->frame); td = page_get_owner_and_reference(*page); /* @@ -2653,7 +2663,7 @@ struct gnttab_copy_buf { /* Mapped etc. */ struct domain *domain; - unsigned long frame; + mfn_t frame; struct page_info *page; void *virt; bool_t read_only; @@ -2785,15 +2795,16 @@ static int gnttab_copy_claim_buf(const struct gnttab_copy *op, if ( !get_page_type(buf->page, PGT_writable_page) ) { if ( !buf->domain->is_dying ) - gdprintk(XENLOG_WARNING, "Could not get writable frame %lx\n", - buf->frame); + gdprintk(XENLOG_WARNING, + "Could not get writable frame %#"PRI_mfn"\n", + mfn_x(buf->frame)); rc = GNTST_general_error; goto out; } buf->have_type = 1; } - buf->virt = map_domain_page(_mfn(buf->frame)); + buf->virt = map_domain_page(buf->frame); rc = GNTST_okay; out: @@ -3296,7 +3307,7 @@ static int cache_flush(const gnttab_cache_flush_t *cflush, grant_ref_t *cur_ref) { struct domain *d, *owner; struct page_info *page; - unsigned long mfn; + mfn_t mfn; struct active_grant_entry *act = NULL; void *v; int ret; @@ -3315,9 +3326,9 @@ static int cache_flush(const gnttab_cache_flush_t *cflush, grant_ref_t *cur_ref) return -EOPNOTSUPP; d = rcu_lock_current_domain(); - mfn = cflush->a.dev_bus_addr >> PAGE_SHIFT; + mfn = maddr_to_mfn(cflush->a.dev_bus_addr); - if ( !mfn_valid(_mfn(mfn)) ) + if ( !mfn_valid(mfn) ) { rcu_unlock_domain(d); return -EINVAL; @@ -3345,7 +3356,7 @@ static int cache_flush(const gnttab_cache_flush_t *cflush, grant_ref_t *cur_ref) } } - v = map_domain_page(_mfn(mfn)); + v = map_domain_page(mfn); v += cflush->offset; if ( (cflush->op & GNTTAB_CACHE_INVAL) && (cflush->op & GNTTAB_CACHE_CLEAN) ) @@ -3663,7 +3674,7 @@ gnttab_release_mappings( { BUG_ON(!(act->pin & GNTPIN_devr_mask)); act->pin -= GNTPIN_devr_inc; - if ( !is_iomem_page(_mfn(act->frame)) ) + if ( !is_iomem_page(act->frame) ) put_page(pg); } @@ -3672,7 +3683,7 @@ gnttab_release_mappings( BUG_ON(!(act->pin & GNTPIN_hstr_mask)); act->pin -= GNTPIN_hstr_inc; if ( gnttab_release_host_mappings(d) && - !is_iomem_page(_mfn(act->frame)) ) + !is_iomem_page(act->frame) ) put_page(pg); } } @@ -3682,7 +3693,7 @@ gnttab_release_mappings( { BUG_ON(!(act->pin & GNTPIN_devw_mask)); act->pin -= GNTPIN_devw_inc; - if ( !is_iomem_page(_mfn(act->frame)) ) + if ( !is_iomem_page(act->frame) ) put_page_and_type(pg); } @@ -3691,7 +3702,7 @@ gnttab_release_mappings( BUG_ON(!(act->pin & GNTPIN_hstw_mask)); act->pin -= GNTPIN_hstw_inc; if ( gnttab_release_host_mappings(d) && - !is_iomem_page(_mfn(act->frame)) ) + !is_iomem_page(act->frame) ) { if ( gnttab_host_mapping_get_page_type((map->flags & GNTMAP_readonly), @@ -3743,12 +3754,12 @@ void grant_table_warn_active_grants(struct domain *d) #ifndef NDEBUG "GFN %lx, " #endif - "MFN: %lx)\n", + "MFN: %#"PRI_mfn")\n", d->domain_id, ref, #ifndef NDEBUG gfn_x(act->gfn), #endif - act->frame); + mfn_x(act->frame)); active_entry_release(act); } @@ -3955,9 +3966,9 @@ static void gnttab_usage_print(struct domain *rd) first = 0; - /* [0xXXX] ddddd 0xXXXXXX 0xXXXXXXXX ddddd 0xXXXXXX 0xXX */ - printk("[0x%03x] %5d 0x%06lx 0x%08x %5d 0x%06"PRIx64" 0x%02x\n", - ref, act->domid, act->frame, act->pin, + /* [0xXXX] ddddd 0xXXXXX 0xXXXXXXXX ddddd 0xXXXXXX 0xXX */ + printk("[0x%03x] %5d 0x%"PRI_mfn" 0x%08x %5d 0x%06"PRIx64" 0x%02x\n", + ref, act->domid, mfn_x(act->frame), act->pin, sha->domid, frame, status); active_entry_release(act); } diff --git a/xen/include/asm-arm/grant_table.h b/xen/include/asm-arm/grant_table.h index b05e5ca22d..9b365498b1 100644 --- a/xen/include/asm-arm/grant_table.h +++ b/xen/include/asm-arm/grant_table.h @@ -19,7 +19,7 @@ int create_grant_host_mapping(unsigned long gpaddr, mfn_t mfn, #define gnttab_host_mapping_get_page_type(ro, ld, rd) (0) int replace_grant_host_mapping(unsigned long gpaddr, mfn_t mfn, unsigned long new_gpaddr, unsigned int flags); -void gnttab_mark_dirty(struct domain *d, unsigned long l); +void gnttab_mark_dirty(struct domain *d, mfn_t mfn); #define gnttab_create_status_page(d, t, i) do {} while (0) #define gnttab_release_host_mappings(domain) 1 static inline int replace_grant_supported(void) diff --git a/xen/include/asm-x86/grant_table.h b/xen/include/asm-x86/grant_table.h index 05a457b7eb..a4375297ef 100644 --- a/xen/include/asm-x86/grant_table.h +++ b/xen/include/asm-x86/grant_table.h @@ -82,7 +82,7 @@ static inline unsigned int gnttab_dom0_max(void) #define gnttab_status_gmfn(d, t, i) \ (mfn_to_gmfn(d, gnttab_status_mfn(t, i))) -#define gnttab_mark_dirty(d, f) paging_mark_dirty((d), _mfn(f)) +#define gnttab_mark_dirty(d, f) paging_mark_dirty((d), f) static inline void gnttab_clear_flag(unsigned int nr, uint16_t *st) { From patchwork Wed Mar 14 18:20:08 2018 Content-Type: text/plain; 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[192.237.175.120]) by mx.google.com with ESMTPS id z6si2027644iod.214.2018.03.14.11.22.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:22:40 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB12-0007AH-Sk; Wed, 14 Mar 2018 18:20:44 +0000 Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB11-00077f-Hr for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:43 +0000 X-Inumbo-ID: 6526feb1-27b4-11e8-9728-bc764e045a96 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-rack-dfw2.inumbo.com (Halon) with ESMTP id 6526feb1-27b4-11e8-9728-bc764e045a96; Wed, 14 Mar 2018 19:20:38 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9650C15BE; Wed, 14 Mar 2018 11:20:41 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AB5373F53D; Wed, 14 Mar 2018 11:20:40 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:08 +0000 Message-Id: <20180314182009.14274-16-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Andrew Cooper , Julien Grall , Jan Beulich Subject: [Xen-devel] [PATCH v5 15/16] xen/x86: Switch mfn_to_page in x86_64/mm.c to use typesafe MFN X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall Other than _mfn(0) -> INVALID_MFN, no functional change intendend. Signed-off-by: Julien Grall Acked-by: Jan Beulich --- Cc: Jan Beulich Cc: Andrew Cooper Changes in v5: - Use INVALID_MFN instead of _mfn(0) Changes in v4: - Patch added --- xen/arch/x86/x86_64/mm.c | 46 ++++++++++++++++++++++++++-------------------- 1 file changed, 26 insertions(+), 20 deletions(-) diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c index e03250bcdd..a54e2c9be4 100644 --- a/xen/arch/x86/x86_64/mm.c +++ b/xen/arch/x86/x86_64/mm.c @@ -43,6 +43,8 @@ asm(".file \"" __FILE__ "\""); /* Override macros from asm/page.h to make them work with mfn_t */ #undef page_to_mfn #define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) +#undef mfn_to_page +#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) unsigned int __read_mostly m2p_compat_vstart = __HYPERVISOR_COMPAT_VIRT_START; @@ -160,7 +162,8 @@ static int m2p_mapped(unsigned long spfn) static int share_hotadd_m2p_table(struct mem_hotadd_info *info) { - unsigned long i, n, v, m2p_start_mfn = 0; + unsigned long i, n, v; + mfn_t m2p_start_mfn = INVALID_MFN; l3_pgentry_t l3e; l2_pgentry_t l2e; @@ -180,15 +183,16 @@ static int share_hotadd_m2p_table(struct mem_hotadd_info *info) l2e = l3e_to_l2e(l3e)[l2_table_offset(v)]; if ( !(l2e_get_flags(l2e) & _PAGE_PRESENT) ) continue; - m2p_start_mfn = l2e_get_pfn(l2e); + m2p_start_mfn = l2e_get_mfn(l2e); } else continue; for ( i = 0; i < n; i++ ) { - struct page_info *page = mfn_to_page(m2p_start_mfn + i); - if (hotadd_mem_valid(m2p_start_mfn + i, info)) + struct page_info *page = mfn_to_page(mfn_add(m2p_start_mfn, i)); + + if ( hotadd_mem_valid(mfn_x(mfn_add(m2p_start_mfn, i)), info) ) share_xen_page_with_privileged_guests(page, XENSHARE_readonly); } } @@ -204,12 +208,13 @@ static int share_hotadd_m2p_table(struct mem_hotadd_info *info) l2e = l3e_to_l2e(l3e)[l2_table_offset(v)]; if ( !(l2e_get_flags(l2e) & _PAGE_PRESENT) ) continue; - m2p_start_mfn = l2e_get_pfn(l2e); + m2p_start_mfn = l2e_get_mfn(l2e); for ( i = 0; i < L1_PAGETABLE_ENTRIES; i++ ) { - struct page_info *page = mfn_to_page(m2p_start_mfn + i); - if (hotadd_mem_valid(m2p_start_mfn + i, info)) + struct page_info *page = mfn_to_page(mfn_add(m2p_start_mfn, i)); + + if ( hotadd_mem_valid(mfn_x(mfn_add(m2p_start_mfn, i)), info) ) share_xen_page_with_privileged_guests(page, XENSHARE_readonly); } } @@ -720,10 +725,10 @@ static void cleanup_frame_table(struct mem_hotadd_info *info) unsigned long sva, eva; l3_pgentry_t l3e; l2_pgentry_t l2e; - unsigned long spfn, epfn; + mfn_t spfn, epfn; - spfn = info->spfn; - epfn = info->epfn; + spfn = _mfn(info->spfn); + epfn = _mfn(info->epfn); sva = (unsigned long)mfn_to_page(spfn); eva = (unsigned long)mfn_to_page(epfn); @@ -795,16 +800,17 @@ static int setup_frametable_chunk(void *start, void *end, static int extend_frame_table(struct mem_hotadd_info *info) { - unsigned long cidx, nidx, eidx, spfn, epfn; + unsigned long cidx, nidx, eidx; + mfn_t spfn, epfn; - spfn = info->spfn; - epfn = info->epfn; + spfn = _mfn(info->spfn); + epfn = _mfn(info->epfn); - eidx = (pfn_to_pdx(epfn) + PDX_GROUP_COUNT - 1) / PDX_GROUP_COUNT; - nidx = cidx = pfn_to_pdx(spfn)/PDX_GROUP_COUNT; + eidx = (mfn_to_pdx(epfn) + PDX_GROUP_COUNT - 1) / PDX_GROUP_COUNT; + nidx = cidx = mfn_to_pdx(spfn)/PDX_GROUP_COUNT; - ASSERT( pfn_to_pdx(epfn) <= (DIRECTMAP_SIZE >> PAGE_SHIFT) && - pfn_to_pdx(epfn) <= FRAMETABLE_NR ); + ASSERT( mfn_to_pdx(epfn) <= (DIRECTMAP_SIZE >> PAGE_SHIFT) && + mfn_to_pdx(epfn) <= FRAMETABLE_NR ); if ( test_bit(cidx, pdx_group_valid) ) cidx = find_next_zero_bit(pdx_group_valid, eidx, cidx); @@ -866,7 +872,7 @@ void __init subarch_init_memory(void) for ( i = 0; i < n; i++ ) { - struct page_info *page = mfn_to_page(m2p_start_mfn + i); + struct page_info *page = mfn_to_page(_mfn(m2p_start_mfn + i)); share_xen_page_with_privileged_guests(page, XENSHARE_readonly); } } @@ -886,7 +892,7 @@ void __init subarch_init_memory(void) for ( i = 0; i < L1_PAGETABLE_ENTRIES; i++ ) { - struct page_info *page = mfn_to_page(m2p_start_mfn + i); + struct page_info *page = mfn_to_page(_mfn(m2p_start_mfn + i)); share_xen_page_with_privileged_guests(page, XENSHARE_readonly); } } @@ -1274,7 +1280,7 @@ static int transfer_pages_to_heap(struct mem_hotadd_info *info) */ for (i = info->spfn; i < info->cur; i++) { - pg = mfn_to_page(i); + pg = mfn_to_page(_mfn(i)); pg->count_info = PGC_state_inuse; } From patchwork Wed Mar 14 18:20:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 131721 Delivered-To: patch@linaro.org Received: by 10.46.84.17 with SMTP id i17csp157589ljb; Wed, 14 Mar 2018 11:23:12 -0700 (PDT) X-Google-Smtp-Source: AG47ELvvaAMGeO0sq0QXNlIsXzoXGm6QvcHgQ2sKdgCW4CBFD1fwlG6pQZxemvHkQFfGAfC9+IeL X-Received: by 2002:a24:5c88:: with SMTP id q130-v6mr3112360itb.112.1521051791611; Wed, 14 Mar 2018 11:23:11 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521051791; cv=none; d=google.com; s=arc-20160816; b=0hJ8mlHRCLXm2FASP9a9WqJWaWk13W61j+Fi6S1P2OSekUgi5K29BDrNsyW8E0A2DJ j5VsEJ9pTLoij+tEUs8ZUfbBgYlz8icp3l3yuRNun+s8wUIjkN51NbPCoin53LBRq3Z1 dM0RHBAvhIXH+VSZRr25fIbqVWllc9U4oseAQadNO1Utu0odKHdh25AmP+wEhJ8UEgFh SwNFTWDW24VicZboctxvg5IuIlQy/uqVDGLgqQSBP/wnfWIpOHV2pacVCob24F3taeuQ piPcr/rDz00mB3ZInBgUNzdOAxDUEo/8sOqV2ZwDSbqNU5yzWfCWZknqVLFNXE/btp0a S7Yg== ARC-Message-Signature: i=1; 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[192.237.175.120]) by mx.google.com with ESMTPS id l202si1238991ita.128.2018.03.14.11.23.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Mar 2018 11:23:11 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of xen-devel-bounces@lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB1C-0007O5-NK; Wed, 14 Mar 2018 18:20:54 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ewB1B-0007H2-K5 for xen-devel@lists.xen.org; Wed, 14 Mar 2018 18:20:53 +0000 X-Inumbo-ID: 6dd49d4d-27b4-11e8-8248-2fda3a446a53 Received: from foss.arm.com (unknown [217.140.101.70]) by us1-amaz-eas1.inumbo.com (Halon) with ESMTP id 6dd49d4d-27b4-11e8-8248-2fda3a446a53; Wed, 14 Mar 2018 18:20:52 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 41F0C80D; Wed, 14 Mar 2018 11:20:45 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.206.53]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D846B3F53D; Wed, 14 Mar 2018 11:20:41 -0700 (PDT) From: julien.grall@arm.com To: xen-devel@lists.xen.org Date: Wed, 14 Mar 2018 18:20:09 +0000 Message-Id: <20180314182009.14274-17-julien.grall@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180314182009.14274-1-julien.grall@arm.com> References: <20180314182009.14274-1-julien.grall@arm.com> Cc: Jun Nakajima , Kevin Tian , Stefano Stabellini , Wei Liu , Suravee Suthikulpanit , Razvan Cojocaru , George Dunlap , Andrew Cooper , Ian Jackson , Tim Deegan , Julien Grall , Paul Durrant , Tamas K Lengyel , Jan Beulich , Shane Wang , Boris Ostrovsky , Gang Wei Subject: [Xen-devel] [PATCH v5 16/16] xen: Convert page_to_mfn and mfn_to_page to use typesafe MFN X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Julien Grall Most of the users of page_to_mfn and mfn_to_page are either overriding the macros to make them work with mfn_t or use mfn_x/_mfn because the rest of the function use mfn_t. So make page_to_mfn and mfn_to_page return mfn_t by default. The __* version are now dropped as this patch will convert all the remaining non-typesafe callers. Only reasonable clean-ups are done in this patch. The rest will use _mfn/mfn_x for the time being. Lastly, domain_page_to_mfn is also converted to use mfn_t given that most of the callers are now switched to _mfn(domain_page_to_mfn(...)). Signed-off-by: Julien Grall Acked-by: Razvan Cojocaru Reviewed-by: Paul Durrant Reviewed-by: Boris Ostrovsky Reviewed-by: Kevin Tian Reviewed-by: Wei Liu Acked-by: Jan Beulich Reviewed-by: George Dunlap --- Andrew suggested to drop IS_VALID_PAGE in xen/tmem_xen.h. His comment was: "/sigh This is tautological. The definition of a "valid mfn" in this case is one for which we have frametable entry, and by having a struct page_info in our hands, this is by definition true (unless you have a wild pointer, at which point your bug is elsewhere). IS_VALID_PAGE() is only ever used in assertions and never usefully, so instead I would remove it entirely rather than trying to fix it up." I can remove the function in a separate patch at the begining of the series if Konrad (TMEM maintainer) is happy with that. Cc: Stefano Stabellini Cc: Julien Grall Cc: Andrew Cooper Cc: George Dunlap Cc: Ian Jackson Cc: Jan Beulich Cc: Konrad Rzeszutek Wilk Cc: Tim Deegan Cc: Tamas K Lengyel Cc: Suravee Suthikulpanit Cc: Jun Nakajima Cc: George Dunlap Cc: Gang Wei Cc: Shane Wang Changes in v5: - Remove some spurious parentheses in the code changed - Remove spurious change in _set_gpfn_from_mfn - Add Razvan's acked-by - Add Paul's reviewed-by - Add Boris's reviewed-by - Add Kevin's reviewed-by - Add Wei's reviewed-by Changes in v4: - Drop __page_to_mfn and __mfn_to_page. Reword the commit title/message to reflect that. Changes in v3: - Rebase on the latest staging and fix some conflicts. Tags haven't be retained. - Switch the printf format to PRI_mfn Changes in v2: - Some part have been moved in separate patch - Remove one spurious comment - Convert domain_page_to_mfn to use mfn_t --- xen/arch/arm/domain_build.c | 2 -- xen/arch/arm/kernel.c | 2 +- xen/arch/arm/mem_access.c | 2 +- xen/arch/arm/mm.c | 8 ++++---- xen/arch/arm/p2m.c | 10 ++-------- xen/arch/x86/cpu/vpmu.c | 4 ++-- xen/arch/x86/domain.c | 21 +++++++++++---------- xen/arch/x86/domain_page.c | 6 +++--- xen/arch/x86/hvm/dm.c | 2 +- xen/arch/x86/hvm/dom0_build.c | 6 +++--- xen/arch/x86/hvm/emulate.c | 6 +++--- xen/arch/x86/hvm/hvm.c | 12 ++++++------ xen/arch/x86/hvm/ioreq.c | 4 ++-- xen/arch/x86/hvm/stdvga.c | 2 +- xen/arch/x86/hvm/svm/svm.c | 4 ++-- xen/arch/x86/hvm/viridian.c | 6 +++--- xen/arch/x86/hvm/vmx/vmcs.c | 2 +- xen/arch/x86/hvm/vmx/vmx.c | 10 +++++----- xen/arch/x86/hvm/vmx/vvmx.c | 6 +++--- xen/arch/x86/mm.c | 4 ---- xen/arch/x86/mm/guest_walk.c | 6 +++--- xen/arch/x86/mm/hap/guest_walk.c | 2 +- xen/arch/x86/mm/hap/hap.c | 6 ------ xen/arch/x86/mm/hap/nested_ept.c | 2 +- xen/arch/x86/mm/mem_sharing.c | 5 ----- xen/arch/x86/mm/p2m-ept.c | 8 ++++---- xen/arch/x86/mm/p2m-pod.c | 6 ------ xen/arch/x86/mm/p2m.c | 6 ------ xen/arch/x86/mm/paging.c | 6 ------ xen/arch/x86/mm/shadow/private.h | 16 ++-------------- xen/arch/x86/numa.c | 2 +- xen/arch/x86/physdev.c | 2 +- xen/arch/x86/pv/callback.c | 6 ------ xen/arch/x86/pv/descriptor-tables.c | 6 ------ xen/arch/x86/pv/dom0_build.c | 14 +++++++------- xen/arch/x86/pv/domain.c | 6 ------ xen/arch/x86/pv/emul-gate-op.c | 6 ------ xen/arch/x86/pv/emul-priv-op.c | 10 ---------- xen/arch/x86/pv/grant_table.c | 6 ------ xen/arch/x86/pv/ro-page-fault.c | 6 ------ xen/arch/x86/pv/shim.c | 4 +--- xen/arch/x86/smpboot.c | 6 ------ xen/arch/x86/tboot.c | 4 ++-- xen/arch/x86/traps.c | 4 ++-- xen/arch/x86/x86_64/mm.c | 6 ------ xen/common/domain.c | 4 ++-- xen/common/grant_table.c | 6 ------ xen/common/kimage.c | 6 ------ xen/common/memory.c | 6 ------ xen/common/page_alloc.c | 6 ------ xen/common/tmem.c | 2 +- xen/common/tmem_xen.c | 4 ---- xen/common/trace.c | 4 ++-- xen/common/vmap.c | 6 +----- xen/common/xenoprof.c | 2 -- xen/drivers/passthrough/amd/iommu_map.c | 12 ++++++------ xen/drivers/passthrough/iommu.c | 2 +- xen/drivers/passthrough/x86/iommu.c | 2 +- xen/include/asm-arm/mm.h | 20 ++++++++++---------- xen/include/asm-arm/p2m.h | 4 ++-- xen/include/asm-x86/mm.h | 6 +++--- xen/include/asm-x86/p2m.h | 2 +- xen/include/asm-x86/page.h | 32 +++++++++++++++----------------- xen/include/xen/domain_page.h | 8 ++++---- xen/include/xen/mm.h | 5 ----- xen/include/xen/tmem_xen.h | 2 +- 66 files changed, 129 insertions(+), 282 deletions(-) diff --git a/xen/arch/arm/domain_build.c b/xen/arch/arm/domain_build.c index 28ee876b92..b2cd246729 100644 --- a/xen/arch/arm/domain_build.c +++ b/xen/arch/arm/domain_build.c @@ -49,8 +49,6 @@ struct map_range_data /* Override macros from asm/page.h to make them work with mfn_t */ #undef virt_to_mfn #define virt_to_mfn(va) _mfn(__virt_to_mfn(va)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) //#define DEBUG_11_ALLOCATION #ifdef DEBUG_11_ALLOCATION diff --git a/xen/arch/arm/kernel.c b/xen/arch/arm/kernel.c index 2fb0b9684d..8fdfd91543 100644 --- a/xen/arch/arm/kernel.c +++ b/xen/arch/arm/kernel.c @@ -286,7 +286,7 @@ static __init int kernel_decompress(struct bootmodule *mod) iounmap(input); return -ENOMEM; } - mfn = _mfn(page_to_mfn(pages)); + mfn = page_to_mfn(pages); output = __vmap(&mfn, 1 << kernel_order_out, 1, 1, PAGE_HYPERVISOR, VMAP_DEFAULT); rc = perform_gunzip(output, input, size); diff --git a/xen/arch/arm/mem_access.c b/xen/arch/arm/mem_access.c index 0f2cbb81d3..112e291cba 100644 --- a/xen/arch/arm/mem_access.c +++ b/xen/arch/arm/mem_access.c @@ -210,7 +210,7 @@ p2m_mem_access_check_and_get_page(vaddr_t gva, unsigned long flag, if ( t != p2m_ram_rw ) goto err; - page = mfn_to_page(mfn_x(mfn)); + page = mfn_to_page(mfn); if ( unlikely(!get_page(page, v->domain)) ) page = NULL; diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index db74466a16..510a5a2050 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -477,7 +477,7 @@ void unmap_domain_page(const void *va) local_irq_restore(flags); } -unsigned long domain_page_map_to_mfn(const void *ptr) +mfn_t domain_page_map_to_mfn(const void *ptr) { unsigned long va = (unsigned long)ptr; lpae_t *map = this_cpu(xen_dommap); @@ -485,12 +485,12 @@ unsigned long domain_page_map_to_mfn(const void *ptr) unsigned long offset = (va>>THIRD_SHIFT) & LPAE_ENTRY_MASK; if ( va >= VMAP_VIRT_START && va < VMAP_VIRT_END ) - return __virt_to_mfn(va); + return virt_to_mfn(va); ASSERT(slot >= 0 && slot < DOMHEAP_ENTRIES); ASSERT(map[slot].pt.avail != 0); - return map[slot].pt.base + offset; + return _mfn(map[slot].pt.base + offset); } #endif @@ -1287,7 +1287,7 @@ int xenmem_add_to_physmap_one( return -EINVAL; } - mfn = _mfn(page_to_mfn(page)); + mfn = page_to_mfn(page); t = p2m_map_foreign; rcu_unlock_domain(od); diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c index 65e8b9c6ea..8b16c8322d 100644 --- a/xen/arch/arm/p2m.c +++ b/xen/arch/arm/p2m.c @@ -37,12 +37,6 @@ static unsigned int __read_mostly max_vmid = MAX_VMID_8_BIT; #define P2M_ROOT_PAGES (1<domain_id, addr); - printk("P2M @ %p mfn:0x%lx\n", - p2m->root, __page_to_mfn(p2m->root)); + printk("P2M @ %p mfn:%#"PRI_mfn"\n", + p2m->root, mfn_x(page_to_mfn(p2m->root))); dump_pt_walk(page_to_maddr(p2m->root), addr, P2M_ROOT_LEVEL, P2M_ROOT_PAGES); diff --git a/xen/arch/x86/cpu/vpmu.c b/xen/arch/x86/cpu/vpmu.c index 7baf4614be..b978e05613 100644 --- a/xen/arch/x86/cpu/vpmu.c +++ b/xen/arch/x86/cpu/vpmu.c @@ -653,7 +653,7 @@ static void pvpmu_finish(struct domain *d, xen_pmu_params_t *params) { struct vcpu *v; struct vpmu_struct *vpmu; - uint64_t mfn; + mfn_t mfn; void *xenpmu_data; if ( (params->vcpu >= d->max_vcpus) || (d->vcpu[params->vcpu] == NULL) ) @@ -675,7 +675,7 @@ static void pvpmu_finish(struct domain *d, xen_pmu_params_t *params) if ( xenpmu_data ) { mfn = domain_page_map_to_mfn(xenpmu_data); - ASSERT(mfn_valid(_mfn(mfn))); + ASSERT(mfn_valid(mfn)); unmap_domain_page_global(xenpmu_data); put_page_and_type(mfn_to_page(mfn)); } diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c index b4e062472e..5f83da87ce 100644 --- a/xen/arch/x86/domain.c +++ b/xen/arch/x86/domain.c @@ -195,7 +195,7 @@ void dump_pageframe_info(struct domain *d) } } printk(" DomPage %p: caf=%08lx, taf=%" PRtype_info "\n", - _p(page_to_mfn(page)), + _p(mfn_x(page_to_mfn(page))), page->count_info, page->u.inuse.type_info); } spin_unlock(&d->page_alloc_lock); @@ -208,7 +208,7 @@ void dump_pageframe_info(struct domain *d) page_list_for_each ( page, &d->xenpage_list ) { printk(" XenPage %p: caf=%08lx, taf=%" PRtype_info "\n", - _p(page_to_mfn(page)), + _p(mfn_x(page_to_mfn(page))), page->count_info, page->u.inuse.type_info); } spin_unlock(&d->page_alloc_lock); @@ -635,7 +635,8 @@ int arch_domain_soft_reset(struct domain *d) struct page_info *page = virt_to_page(d->shared_info), *new_page; int ret = 0; struct domain *owner; - unsigned long mfn, gfn; + mfn_t mfn; + unsigned long gfn; p2m_type_t p2mt; unsigned int i; @@ -669,7 +670,7 @@ int arch_domain_soft_reset(struct domain *d) ASSERT( owner == d ); mfn = page_to_mfn(page); - gfn = mfn_to_gmfn(d, mfn); + gfn = mfn_to_gmfn(d, mfn_x(mfn)); /* * gfn == INVALID_GFN indicates that the shared_info page was never mapped @@ -678,7 +679,7 @@ int arch_domain_soft_reset(struct domain *d) if ( gfn == gfn_x(INVALID_GFN) ) goto exit_put_page; - if ( mfn_x(get_gfn_query(d, gfn, &p2mt)) != mfn ) + if ( !mfn_eq(get_gfn_query(d, gfn, &p2mt), mfn) ) { printk(XENLOG_G_ERR "Failed to get Dom%d's shared_info GFN (%lx)\n", d->domain_id, gfn); @@ -695,7 +696,7 @@ int arch_domain_soft_reset(struct domain *d) goto exit_put_gfn; } - ret = guest_physmap_remove_page(d, _gfn(gfn), _mfn(mfn), PAGE_ORDER_4K); + ret = guest_physmap_remove_page(d, _gfn(gfn), mfn, PAGE_ORDER_4K); if ( ret ) { printk(XENLOG_G_ERR "Failed to remove Dom%d's shared_info frame %lx\n", @@ -704,7 +705,7 @@ int arch_domain_soft_reset(struct domain *d) goto exit_put_gfn; } - ret = guest_physmap_add_page(d, _gfn(gfn), _mfn(page_to_mfn(new_page)), + ret = guest_physmap_add_page(d, _gfn(gfn), page_to_mfn(new_page), PAGE_ORDER_4K); if ( ret ) { @@ -1000,7 +1001,7 @@ int arch_set_info_guest( { if ( (page->u.inuse.type_info & PGT_type_mask) == PGT_l4_page_table ) - done = !fill_ro_mpt(_mfn(page_to_mfn(page))); + done = !fill_ro_mpt(page_to_mfn(page)); page_unlock(page); } @@ -1129,7 +1130,7 @@ int arch_set_info_guest( l4_pgentry_t *l4tab; l4tab = map_domain_page(pagetable_get_mfn(v->arch.guest_table)); - *l4tab = l4e_from_pfn(page_to_mfn(cr3_page), + *l4tab = l4e_from_mfn(page_to_mfn(cr3_page), _PAGE_PRESENT|_PAGE_RW|_PAGE_USER|_PAGE_ACCESSED); unmap_domain_page(l4tab); } @@ -1998,7 +1999,7 @@ int domain_relinquish_resources(struct domain *d) if ( d->arch.pirq_eoi_map != NULL ) { unmap_domain_page_global(d->arch.pirq_eoi_map); - put_page_and_type(mfn_to_page(d->arch.pirq_eoi_map_mfn)); + put_page_and_type(mfn_to_page(_mfn(d->arch.pirq_eoi_map_mfn))); d->arch.pirq_eoi_map = NULL; d->arch.auto_unmask = 0; } diff --git a/xen/arch/x86/domain_page.c b/xen/arch/x86/domain_page.c index 3432a854dd..88046b39c9 100644 --- a/xen/arch/x86/domain_page.c +++ b/xen/arch/x86/domain_page.c @@ -331,13 +331,13 @@ void unmap_domain_page_global(const void *ptr) } /* Translate a map-domain-page'd address to the underlying MFN */ -unsigned long domain_page_map_to_mfn(const void *ptr) +mfn_t domain_page_map_to_mfn(const void *ptr) { unsigned long va = (unsigned long)ptr; const l1_pgentry_t *pl1e; if ( va >= DIRECTMAP_VIRT_START ) - return virt_to_mfn(ptr); + return _mfn(virt_to_mfn(ptr)); if ( va >= VMAP_VIRT_START && va < VMAP_VIRT_END ) { @@ -350,5 +350,5 @@ unsigned long domain_page_map_to_mfn(const void *ptr) pl1e = &__linear_l1_table[l1_linear_offset(va)]; } - return l1e_get_pfn(*pl1e); + return l1e_get_mfn(*pl1e); } diff --git a/xen/arch/x86/hvm/dm.c b/xen/arch/x86/hvm/dm.c index 7788577a73..cf1e600998 100644 --- a/xen/arch/x86/hvm/dm.c +++ b/xen/arch/x86/hvm/dm.c @@ -193,7 +193,7 @@ static int modified_memory(struct domain *d, * These are most probably not page tables any more * don't take a long time and don't die either. */ - sh_remove_shadows(d, _mfn(page_to_mfn(page)), 1, 0); + sh_remove_shadows(d, page_to_mfn(page), 1, 0); put_page(page); } } diff --git a/xen/arch/x86/hvm/dom0_build.c b/xen/arch/x86/hvm/dom0_build.c index afebaec70b..717ffff584 100644 --- a/xen/arch/x86/hvm/dom0_build.c +++ b/xen/arch/x86/hvm/dom0_build.c @@ -119,7 +119,7 @@ static int __init pvh_populate_memory_range(struct domain *d, continue; } - rc = guest_physmap_add_page(d, _gfn(start), _mfn(page_to_mfn(page)), + rc = guest_physmap_add_page(d, _gfn(start), page_to_mfn(page), order); if ( rc != 0 ) { @@ -269,7 +269,7 @@ static int __init pvh_setup_vmx_realmode_helpers(struct domain *d) } write_32bit_pse_identmap(ident_pt); unmap_domain_page(ident_pt); - put_page(mfn_to_page(mfn_x(mfn))); + put_page(mfn_to_page(mfn)); d->arch.hvm_domain.params[HVM_PARAM_IDENT_PT] = gaddr; if ( pvh_add_mem_range(d, gaddr, gaddr + PAGE_SIZE, E820_RESERVED) ) printk("Unable to set identity page tables as reserved in the memory map\n"); @@ -287,7 +287,7 @@ static void __init pvh_steal_low_ram(struct domain *d, unsigned long start, for ( mfn = start; mfn < start + nr_pages; mfn++ ) { - struct page_info *pg = mfn_to_page(mfn); + struct page_info *pg = mfn_to_page(_mfn(mfn)); int rc; rc = unshare_xen_page_with_guest(pg, dom_io); diff --git a/xen/arch/x86/hvm/emulate.c b/xen/arch/x86/hvm/emulate.c index eed482fc6b..bf9a13123c 100644 --- a/xen/arch/x86/hvm/emulate.c +++ b/xen/arch/x86/hvm/emulate.c @@ -591,7 +591,7 @@ static void *hvmemul_map_linear_addr( goto unhandleable; } - *mfn++ = _mfn(page_to_mfn(page)); + *mfn++ = page_to_mfn(page); if ( p2m_is_discard_write(p2mt) ) { @@ -623,7 +623,7 @@ static void *hvmemul_map_linear_addr( out: /* Drop all held references. */ while ( mfn-- > hvmemul_ctxt->mfn ) - put_page(mfn_to_page(mfn_x(*mfn))); + put_page(mfn_to_page(*mfn)); return err; } @@ -649,7 +649,7 @@ static void hvmemul_unmap_linear_addr( { ASSERT(mfn_valid(*mfn)); paging_mark_dirty(currd, *mfn); - put_page(mfn_to_page(mfn_x(*mfn))); + put_page(mfn_to_page(*mfn)); *mfn++ = _mfn(0); /* Clean slot for map()'s error checking. */ } diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c index 461866420d..398fc2fd48 100644 --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -2247,7 +2247,7 @@ int hvm_set_cr0(unsigned long value, bool_t may_defer) v->arch.guest_table = pagetable_from_page(page); HVM_DBG_LOG(DBG_LEVEL_VMMU, "Update CR3 value = %lx, mfn = %lx", - v->arch.hvm_vcpu.guest_cr[3], page_to_mfn(page)); + v->arch.hvm_vcpu.guest_cr[3], mfn_x(page_to_mfn(page))); } } else if ( !(value & X86_CR0_PG) && (old_value & X86_CR0_PG) ) @@ -2631,7 +2631,7 @@ void *hvm_map_guest_frame_ro(unsigned long gfn, bool_t permanent) void hvm_unmap_guest_frame(void *p, bool_t permanent) { - unsigned long mfn; + mfn_t mfn; struct page_info *page; if ( !p ) @@ -2652,7 +2652,7 @@ void hvm_unmap_guest_frame(void *p, bool_t permanent) list_for_each_entry(track, &d->arch.hvm_domain.write_map.list, list) if ( track->page == page ) { - paging_mark_dirty(d, _mfn(mfn)); + paging_mark_dirty(d, mfn); list_del(&track->list); xfree(track); break; @@ -2669,7 +2669,7 @@ void hvm_mapped_guest_frames_mark_dirty(struct domain *d) spin_lock(&d->arch.hvm_domain.write_map.lock); list_for_each_entry(track, &d->arch.hvm_domain.write_map.list, list) - paging_mark_dirty(d, _mfn(page_to_mfn(track->page))); + paging_mark_dirty(d, page_to_mfn(track->page)); spin_unlock(&d->arch.hvm_domain.write_map.lock); } @@ -3243,8 +3243,8 @@ static enum hvm_translation_result __hvm_copy( if ( xchg(&lastpage, gfn_x(gfn)) != gfn_x(gfn) ) dprintk(XENLOG_G_DEBUG, - "%pv attempted write to read-only gfn %#lx (mfn=%#lx)\n", - v, gfn_x(gfn), page_to_mfn(page)); + "%pv attempted write to read-only gfn %#lx (mfn=%#"PRI_mfn")\n", + v, gfn_x(gfn), mfn_x(page_to_mfn(page))); } else { diff --git a/xen/arch/x86/hvm/ioreq.c b/xen/arch/x86/hvm/ioreq.c index 7e66965bcd..a1c2218fdc 100644 --- a/xen/arch/x86/hvm/ioreq.c +++ b/xen/arch/x86/hvm/ioreq.c @@ -268,7 +268,7 @@ static void hvm_remove_ioreq_gfn( struct domain *d, struct hvm_ioreq_page *iorp) { if ( guest_physmap_remove_page(d, _gfn(iorp->gfn), - _mfn(page_to_mfn(iorp->page)), 0) ) + page_to_mfn(iorp->page), 0) ) domain_crash(d); clear_page(iorp->va); } @@ -281,7 +281,7 @@ static int hvm_add_ioreq_gfn( clear_page(iorp->va); rc = guest_physmap_add_page(d, _gfn(iorp->gfn), - _mfn(page_to_mfn(iorp->page)), 0); + page_to_mfn(iorp->page), 0); if ( rc == 0 ) paging_mark_pfn_dirty(d, _pfn(iorp->gfn)); diff --git a/xen/arch/x86/hvm/stdvga.c b/xen/arch/x86/hvm/stdvga.c index 088fbdf8ce..925bab2438 100644 --- a/xen/arch/x86/hvm/stdvga.c +++ b/xen/arch/x86/hvm/stdvga.c @@ -590,7 +590,7 @@ void stdvga_init(struct domain *d) if ( pg == NULL ) break; s->vram_page[i] = pg; - clear_domain_page(_mfn(page_to_mfn(pg))); + clear_domain_page(page_to_mfn(pg)); } if ( i == ARRAY_SIZE(s->vram_page) ) diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c index c34f5b53ce..08dc5d03ef 100644 --- a/xen/arch/x86/hvm/svm/svm.c +++ b/xen/arch/x86/hvm/svm/svm.c @@ -1552,7 +1552,7 @@ static int svm_cpu_up_prepare(unsigned int cpu) if ( !pg ) goto err; - clear_domain_page(_mfn(page_to_mfn(pg))); + clear_domain_page(page_to_mfn(pg)); *this_hsa = page_to_maddr(pg); } @@ -1562,7 +1562,7 @@ static int svm_cpu_up_prepare(unsigned int cpu) if ( !pg ) goto err; - clear_domain_page(_mfn(page_to_mfn(pg))); + clear_domain_page(page_to_mfn(pg)); *this_vmcb = page_to_maddr(pg); } diff --git a/xen/arch/x86/hvm/viridian.c b/xen/arch/x86/hvm/viridian.c index 70aab520bc..d6aa89d0b7 100644 --- a/xen/arch/x86/hvm/viridian.c +++ b/xen/arch/x86/hvm/viridian.c @@ -354,7 +354,7 @@ static void enable_hypercall_page(struct domain *d) if ( page ) put_page(page); gdprintk(XENLOG_WARNING, "Bad GMFN %#"PRI_gfn" (MFN %#"PRI_mfn")\n", - gmfn, page ? page_to_mfn(page) : mfn_x(INVALID_MFN)); + gmfn, mfn_x(page ? page_to_mfn(page) : INVALID_MFN)); return; } @@ -414,7 +414,7 @@ static void initialize_vp_assist(struct vcpu *v) fail: gdprintk(XENLOG_WARNING, "Bad GMFN %#"PRI_gfn" (MFN %#"PRI_mfn")\n", gmfn, - page ? page_to_mfn(page) : mfn_x(INVALID_MFN)); + mfn_x(page ? page_to_mfn(page) : INVALID_MFN)); } static void teardown_vp_assist(struct vcpu *v) @@ -492,7 +492,7 @@ static void update_reference_tsc(struct domain *d, bool_t initialize) if ( page ) put_page(page); gdprintk(XENLOG_WARNING, "Bad GMFN %#"PRI_gfn" (MFN %#"PRI_mfn")\n", - gmfn, page ? page_to_mfn(page) : mfn_x(INVALID_MFN)); + gmfn, mfn_x(page ? page_to_mfn(page) : INVALID_MFN)); return; } diff --git a/xen/arch/x86/hvm/vmx/vmcs.c b/xen/arch/x86/hvm/vmx/vmcs.c index 78c84cc1c1..60e3192aff 100644 --- a/xen/arch/x86/hvm/vmx/vmcs.c +++ b/xen/arch/x86/hvm/vmx/vmcs.c @@ -1434,7 +1434,7 @@ int vmx_vcpu_enable_pml(struct vcpu *v) vmx_vmcs_enter(v); - __vmwrite(PML_ADDRESS, page_to_mfn(v->arch.hvm_vmx.pml_pg) << PAGE_SHIFT); + __vmwrite(PML_ADDRESS, page_to_maddr(v->arch.hvm_vmx.pml_pg)); __vmwrite(GUEST_PML_INDEX, NR_PML_ENTRIES - 1); v->arch.hvm_vmx.secondary_exec_control |= SECONDARY_EXEC_ENABLE_PML; diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c index c7c8a0812f..524f5f47a3 100644 --- a/xen/arch/x86/hvm/vmx/vmx.c +++ b/xen/arch/x86/hvm/vmx/vmx.c @@ -2931,7 +2931,7 @@ gp_fault: static int vmx_alloc_vlapic_mapping(struct domain *d) { struct page_info *pg; - unsigned long mfn; + mfn_t mfn; if ( !cpu_has_vmx_virtualize_apic_accesses ) return 0; @@ -2940,10 +2940,10 @@ static int vmx_alloc_vlapic_mapping(struct domain *d) if ( !pg ) return -ENOMEM; mfn = page_to_mfn(pg); - clear_domain_page(_mfn(mfn)); + clear_domain_page(mfn); share_xen_page_with_guest(pg, d, XENSHARE_writable); - d->arch.hvm_domain.vmx.apic_access_mfn = mfn; - set_mmio_p2m_entry(d, paddr_to_pfn(APIC_DEFAULT_PHYS_BASE), _mfn(mfn), + d->arch.hvm_domain.vmx.apic_access_mfn = mfn_x(mfn); + set_mmio_p2m_entry(d, paddr_to_pfn(APIC_DEFAULT_PHYS_BASE), mfn, PAGE_ORDER_4K, p2m_get_hostp2m(d)->default_access); return 0; @@ -2954,7 +2954,7 @@ static void vmx_free_vlapic_mapping(struct domain *d) unsigned long mfn = d->arch.hvm_domain.vmx.apic_access_mfn; if ( mfn != 0 ) - free_shared_domheap_page(mfn_to_page(mfn)); + free_shared_domheap_page(mfn_to_page(_mfn(mfn))); } static void vmx_install_vlapic_mapping(struct vcpu *v) diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c index dcd3b28f86..f66d62d716 100644 --- a/xen/arch/x86/hvm/vmx/vvmx.c +++ b/xen/arch/x86/hvm/vmx/vvmx.c @@ -84,7 +84,7 @@ int nvmx_vcpu_initialise(struct vcpu *v) } v->arch.hvm_vmx.vmread_bitmap = vmread_bitmap; - clear_domain_page(_mfn(page_to_mfn(vmread_bitmap))); + clear_domain_page(page_to_mfn(vmread_bitmap)); vmwrite_bitmap = alloc_domheap_page(NULL, 0); if ( !vmwrite_bitmap ) @@ -1733,7 +1733,7 @@ int nvmx_handle_vmptrld(struct cpu_user_regs *regs) nvcpu->nv_vvmcx = vvmcx; nvcpu->nv_vvmcxaddr = gpa; v->arch.hvm_vmx.vmcs_shadow_maddr = - pfn_to_paddr(domain_page_map_to_mfn(vvmcx)); + mfn_to_maddr(domain_page_map_to_mfn(vvmcx)); } else { @@ -1819,7 +1819,7 @@ int nvmx_handle_vmclear(struct cpu_user_regs *regs) { if ( writable ) clear_vvmcs_launched(&nvmx->launched_list, - domain_page_map_to_mfn(vvmcs)); + mfn_x(domain_page_map_to_mfn(vvmcs))); else rc = VMFAIL_VALID; hvm_unmap_guest_frame(vvmcs, 0); diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index 2d73232ede..198ae8e27c 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -131,10 +131,6 @@ #include "pv/mm.h" /* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) #undef virt_to_mfn #define virt_to_mfn(v) _mfn(__virt_to_mfn(v)) diff --git a/xen/arch/x86/mm/guest_walk.c b/xen/arch/x86/mm/guest_walk.c index 6055fec1ad..f67aeda3d0 100644 --- a/xen/arch/x86/mm/guest_walk.c +++ b/xen/arch/x86/mm/guest_walk.c @@ -469,20 +469,20 @@ guest_walk_tables(struct vcpu *v, struct p2m_domain *p2m, if ( l3p ) { unmap_domain_page(l3p); - put_page(mfn_to_page(mfn_x(gw->l3mfn))); + put_page(mfn_to_page(gw->l3mfn)); } #endif #if GUEST_PAGING_LEVELS >= 3 if ( l2p ) { unmap_domain_page(l2p); - put_page(mfn_to_page(mfn_x(gw->l2mfn))); + put_page(mfn_to_page(gw->l2mfn)); } #endif if ( l1p ) { unmap_domain_page(l1p); - put_page(mfn_to_page(mfn_x(gw->l1mfn))); + put_page(mfn_to_page(gw->l1mfn)); } return walk_ok; diff --git a/xen/arch/x86/mm/hap/guest_walk.c b/xen/arch/x86/mm/hap/guest_walk.c index c550017ba4..cb3f9cebe7 100644 --- a/xen/arch/x86/mm/hap/guest_walk.c +++ b/xen/arch/x86/mm/hap/guest_walk.c @@ -83,7 +83,7 @@ unsigned long hap_p2m_ga_to_gfn(GUEST_PAGING_LEVELS)( *pfec &= ~PFEC_page_present; goto out_tweak_pfec; } - top_mfn = _mfn(page_to_mfn(top_page)); + top_mfn = page_to_mfn(top_page); /* Map the top-level table and call the tree-walker */ ASSERT(mfn_valid(top_mfn)); diff --git a/xen/arch/x86/mm/hap/hap.c b/xen/arch/x86/mm/hap/hap.c index b76e6b8c6b..812a8405df 100644 --- a/xen/arch/x86/mm/hap/hap.c +++ b/xen/arch/x86/mm/hap/hap.c @@ -42,12 +42,6 @@ #include "private.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(_m) __mfn_to_page(mfn_x(_m)) -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) - /************************************************/ /* HAP VRAM TRACKING SUPPORT */ /************************************************/ diff --git a/xen/arch/x86/mm/hap/nested_ept.c b/xen/arch/x86/mm/hap/nested_ept.c index 14b1bb01e9..1738df69f6 100644 --- a/xen/arch/x86/mm/hap/nested_ept.c +++ b/xen/arch/x86/mm/hap/nested_ept.c @@ -173,7 +173,7 @@ nept_walk_tables(struct vcpu *v, unsigned long l2ga, ept_walk_t *gw) goto map_err; gw->lxe[lvl] = lxp[ept_lvl_table_offset(l2ga, lvl)]; unmap_domain_page(lxp); - put_page(mfn_to_page(mfn_x(lxmfn))); + put_page(mfn_to_page(lxmfn)); if ( nept_non_present_check(gw->lxe[lvl]) ) goto non_present; diff --git a/xen/arch/x86/mm/mem_sharing.c b/xen/arch/x86/mm/mem_sharing.c index 57f54c55c8..fad8a9df13 100644 --- a/xen/arch/x86/mm/mem_sharing.c +++ b/xen/arch/x86/mm/mem_sharing.c @@ -152,11 +152,6 @@ static inline shr_handle_t get_next_handle(void) #define mem_sharing_enabled(d) \ (is_hvm_domain(d) && (d)->arch.hvm_domain.mem_sharing_enabled) -#undef mfn_to_page -#define mfn_to_page(_m) __mfn_to_page(mfn_x(_m)) -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) - static atomic_t nr_saved_mfns = ATOMIC_INIT(0); static atomic_t nr_shared_mfns = ATOMIC_INIT(0); diff --git a/xen/arch/x86/mm/p2m-ept.c b/xen/arch/x86/mm/p2m-ept.c index 66dbb3e83a..14b593923b 100644 --- a/xen/arch/x86/mm/p2m-ept.c +++ b/xen/arch/x86/mm/p2m-ept.c @@ -74,13 +74,13 @@ static int atomic_write_ept_entry(ept_entry_t *entryptr, ept_entry_t new, goto out; rc = -ESRCH; - fdom = page_get_owner(mfn_to_page(new.mfn)); + fdom = page_get_owner(mfn_to_page(_mfn(new.mfn))); if ( fdom == NULL ) goto out; /* get refcount on the page */ rc = -EBUSY; - if ( !get_page(mfn_to_page(new.mfn), fdom) ) + if ( !get_page(mfn_to_page(_mfn(new.mfn)), fdom) ) goto out; } } @@ -91,7 +91,7 @@ static int atomic_write_ept_entry(ept_entry_t *entryptr, ept_entry_t new, write_atomic(&entryptr->epte, new.epte); if ( unlikely(oldmfn != mfn_x(INVALID_MFN)) ) - put_page(mfn_to_page(oldmfn)); + put_page(mfn_to_page(_mfn(oldmfn))); rc = 0; @@ -270,7 +270,7 @@ static void ept_free_entry(struct p2m_domain *p2m, ept_entry_t *ept_entry, int l } p2m_tlb_flush_sync(p2m); - p2m_free_ptp(p2m, mfn_to_page(ept_entry->mfn)); + p2m_free_ptp(p2m, mfn_to_page(_mfn(ept_entry->mfn))); } static bool_t ept_split_super_page(struct p2m_domain *p2m, diff --git a/xen/arch/x86/mm/p2m-pod.c b/xen/arch/x86/mm/p2m-pod.c index fa13e07f7c..631e9aec33 100644 --- a/xen/arch/x86/mm/p2m-pod.c +++ b/xen/arch/x86/mm/p2m-pod.c @@ -29,12 +29,6 @@ #include "mm-locks.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(_m) __mfn_to_page(mfn_x(_m)) -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) - #define superpage_aligned(_x) (((_x)&(SUPERPAGE_PAGES-1))==0) /* Enforce lock ordering when grabbing the "external" page_alloc lock */ diff --git a/xen/arch/x86/mm/p2m.c b/xen/arch/x86/mm/p2m.c index 48e50fb5d8..9ce0a5c9e1 100644 --- a/xen/arch/x86/mm/p2m.c +++ b/xen/arch/x86/mm/p2m.c @@ -47,12 +47,6 @@ bool_t __initdata opt_hap_1gb = 1, __initdata opt_hap_2mb = 1; boolean_param("hap_1gb", opt_hap_1gb); boolean_param("hap_2mb", opt_hap_2mb); -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(_m) __mfn_to_page(mfn_x(_m)) -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) - DEFINE_PERCPU_RWLOCK_GLOBAL(p2m_percpu_rwlock); /* Init the datastructures for later use by the p2m code */ diff --git a/xen/arch/x86/mm/paging.c b/xen/arch/x86/mm/paging.c index 8a658b9118..2b0445ffe9 100644 --- a/xen/arch/x86/mm/paging.c +++ b/xen/arch/x86/mm/paging.c @@ -47,12 +47,6 @@ /* Per-CPU variable for enforcing the lock ordering */ DEFINE_PER_CPU(int, mm_lock_level); -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(_m) __mfn_to_page(mfn_x(_m)) -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) - /************************************************/ /* LOG DIRTY SUPPORT */ /************************************************/ diff --git a/xen/arch/x86/mm/shadow/private.h b/xen/arch/x86/mm/shadow/private.h index 845541fe8a..ea0ad28c05 100644 --- a/xen/arch/x86/mm/shadow/private.h +++ b/xen/arch/x86/mm/shadow/private.h @@ -315,7 +315,7 @@ static inline int page_is_out_of_sync(struct page_info *p) static inline int mfn_is_out_of_sync(mfn_t gmfn) { - return page_is_out_of_sync(mfn_to_page(mfn_x(gmfn))); + return page_is_out_of_sync(mfn_to_page(gmfn)); } static inline int page_oos_may_write(struct page_info *p) @@ -326,7 +326,7 @@ static inline int page_oos_may_write(struct page_info *p) static inline int mfn_oos_may_write(mfn_t gmfn) { - return page_oos_may_write(mfn_to_page(mfn_x(gmfn))); + return page_oos_may_write(mfn_to_page(gmfn)); } #endif /* (SHADOW_OPTIMIZATIONS & SHOPT_OUT_OF_SYNC) */ @@ -465,18 +465,6 @@ void sh_reset_l3_up_pointers(struct vcpu *v); * MFN/page-info handling */ -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(_m) __mfn_to_page(mfn_x(_m)) -#undef page_to_mfn -#define page_to_mfn(_pg) _mfn(__page_to_mfn(_pg)) - -/* Override pagetable_t <-> struct page_info conversions to work with mfn_t */ -#undef pagetable_get_page -#define pagetable_get_page(x) mfn_to_page(pagetable_get_mfn(x)) -#undef pagetable_from_page -#define pagetable_from_page(pg) pagetable_from_mfn(page_to_mfn(pg)) - #define backpointer(sp) _mfn(pdx_to_pfn((unsigned long)(sp)->v.sh.back)) static inline unsigned long __backpointer(const struct page_info *sp) { diff --git a/xen/arch/x86/numa.c b/xen/arch/x86/numa.c index 4fc967f893..a87987da6f 100644 --- a/xen/arch/x86/numa.c +++ b/xen/arch/x86/numa.c @@ -430,7 +430,7 @@ static void dump_numa(unsigned char key) spin_lock(&d->page_alloc_lock); page_list_for_each(page, &d->page_list) { - i = phys_to_nid((paddr_t)page_to_mfn(page) << PAGE_SHIFT); + i = phys_to_nid(page_to_maddr(page)); page_num_node[i]++; } spin_unlock(&d->page_alloc_lock); diff --git a/xen/arch/x86/physdev.c b/xen/arch/x86/physdev.c index 380d36f6b9..7bfa0f23f0 100644 --- a/xen/arch/x86/physdev.c +++ b/xen/arch/x86/physdev.c @@ -239,7 +239,7 @@ ret_t do_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg) } if ( cmpxchg(&currd->arch.pirq_eoi_map_mfn, - 0, page_to_mfn(page)) != 0 ) + 0, mfn_x(page_to_mfn(page))) != 0 ) { put_page_and_type(page); ret = -EBUSY; diff --git a/xen/arch/x86/pv/callback.c b/xen/arch/x86/pv/callback.c index 29ae692855..2550a726d2 100644 --- a/xen/arch/x86/pv/callback.c +++ b/xen/arch/x86/pv/callback.c @@ -31,12 +31,6 @@ #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - static int register_guest_nmi_callback(unsigned long address) { struct vcpu *curr = current; diff --git a/xen/arch/x86/pv/descriptor-tables.c b/xen/arch/x86/pv/descriptor-tables.c index b418bbb581..71bf92713e 100644 --- a/xen/arch/x86/pv/descriptor-tables.c +++ b/xen/arch/x86/pv/descriptor-tables.c @@ -25,12 +25,6 @@ #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - /* * Flush the LDT, dropping any typerefs. Returns a boolean indicating whether * mappings have been removed (i.e. a TLB flush is needed). diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c index 0bd2f1bf90..5b4325b87f 100644 --- a/xen/arch/x86/pv/dom0_build.c +++ b/xen/arch/x86/pv/dom0_build.c @@ -64,7 +64,7 @@ static __init void mark_pv_pt_pages_rdonly(struct domain *d, for ( count = 0; count < nr_pt_pages; count++ ) { l1e_remove_flags(*pl1e, _PAGE_RW); - page = mfn_to_page(l1e_get_pfn(*pl1e)); + page = mfn_to_page(l1e_get_mfn(*pl1e)); /* Read-only mapping + PGC_allocated + page-table page. */ page->count_info = PGC_allocated | 3; @@ -496,7 +496,7 @@ int __init dom0_construct_pv(struct domain *d, page = alloc_domheap_pages(d, order, 0); if ( page == NULL ) panic("Not enough RAM for domain 0 allocation"); - alloc_spfn = page_to_mfn(page); + alloc_spfn = mfn_x(page_to_mfn(page)); alloc_epfn = alloc_spfn + d->tot_pages; if ( initrd_len ) @@ -524,12 +524,12 @@ int __init dom0_construct_pv(struct domain *d, mpt_alloc = (paddr_t)initrd->mod_start << PAGE_SHIFT; init_domheap_pages(mpt_alloc, mpt_alloc + PAGE_ALIGN(initrd_len)); - initrd->mod_start = initrd_mfn = page_to_mfn(page); + initrd->mod_start = initrd_mfn = mfn_x(page_to_mfn(page)); } else { while ( count-- ) - if ( assign_pages(d, mfn_to_page(mfn++), 0, 0) ) + if ( assign_pages(d, mfn_to_page(_mfn(mfn++)), 0, 0) ) BUG(); } initrd->mod_end = 0; @@ -661,7 +661,7 @@ int __init dom0_construct_pv(struct domain *d, L1_PROT : COMPAT_L1_PROT)); l1tab++; - page = mfn_to_page(mfn); + page = mfn_to_page(_mfn(mfn)); if ( !page->u.inuse.type_info && !get_page_and_type(page, d, PGT_writable_page) ) BUG(); @@ -801,7 +801,7 @@ int __init dom0_construct_pv(struct domain *d, si->nr_p2m_frames = d->tot_pages - count; page_list_for_each ( page, &d->page_list ) { - mfn = page_to_mfn(page); + mfn = mfn_x(page_to_mfn(page)); BUG_ON(SHARED_M2P(get_gpfn_from_mfn(mfn))); if ( get_gpfn_from_mfn(mfn) >= count ) { @@ -826,7 +826,7 @@ int __init dom0_construct_pv(struct domain *d, panic("Not enough RAM for DOM0 reservation"); while ( pfn < d->tot_pages ) { - mfn = page_to_mfn(page); + mfn = mfn_x(page_to_mfn(page)); #ifndef NDEBUG #define pfn (nr_pages - 1 - (pfn - (alloc_epfn - alloc_spfn))) #endif diff --git a/xen/arch/x86/pv/domain.c b/xen/arch/x86/pv/domain.c index 2c784fb3cc..5565e69f44 100644 --- a/xen/arch/x86/pv/domain.c +++ b/xen/arch/x86/pv/domain.c @@ -11,12 +11,6 @@ #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - static void noreturn continue_nonidle_domain(struct vcpu *v) { check_wakeup_from_wait(); diff --git a/xen/arch/x86/pv/emul-gate-op.c b/xen/arch/x86/pv/emul-gate-op.c index 14ce95e26e..810c4f7d8c 100644 --- a/xen/arch/x86/pv/emul-gate-op.c +++ b/xen/arch/x86/pv/emul-gate-op.c @@ -41,12 +41,6 @@ #include "emulate.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - static int read_gate_descriptor(unsigned int gate_sel, const struct vcpu *v, unsigned int *sel, diff --git a/xen/arch/x86/pv/emul-priv-op.c b/xen/arch/x86/pv/emul-priv-op.c index af58544a3a..0abc0fb47a 100644 --- a/xen/arch/x86/pv/emul-priv-op.c +++ b/xen/arch/x86/pv/emul-priv-op.c @@ -43,16 +43,6 @@ #include "emulate.h" #include "mm.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - -/*********************** - * I/O emulation support - */ - struct priv_op_ctxt { struct x86_emulate_ctxt ctxt; struct { diff --git a/xen/arch/x86/pv/grant_table.c b/xen/arch/x86/pv/grant_table.c index 458085e1b6..6b7d855c8a 100644 --- a/xen/arch/x86/pv/grant_table.c +++ b/xen/arch/x86/pv/grant_table.c @@ -27,12 +27,6 @@ #include "mm.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - static unsigned int grant_to_pte_flags(unsigned int grant_flags, unsigned int cache_flags) { diff --git a/xen/arch/x86/pv/ro-page-fault.c b/xen/arch/x86/pv/ro-page-fault.c index 12aab0a186..2f2d85119d 100644 --- a/xen/arch/x86/pv/ro-page-fault.c +++ b/xen/arch/x86/pv/ro-page-fault.c @@ -33,12 +33,6 @@ #include "emulate.h" #include "mm.h" -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - /********************* * Writable Pagetables */ diff --git a/xen/arch/x86/pv/shim.c b/xen/arch/x86/pv/shim.c index 534965c92a..519278f78c 100644 --- a/xen/arch/x86/pv/shim.c +++ b/xen/arch/x86/pv/shim.c @@ -37,8 +37,6 @@ #include -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) #undef virt_to_mfn #define virt_to_mfn(va) _mfn(__virt_to_mfn(va)) @@ -848,7 +846,7 @@ static unsigned long batch_memory_op(unsigned int cmd, unsigned int order, set_xen_guest_handle(xmr.extent_start, pfns); page_list_for_each ( pg, list ) { - pfns[xmr.nr_extents++] = page_to_mfn(pg); + pfns[xmr.nr_extents++] = mfn_x(page_to_mfn(pg)); if ( xmr.nr_extents == ARRAY_SIZE(pfns) || !page_list_next(pg, list) ) { long nr = xen_hypercall_memory_op(cmd, &xmr); diff --git a/xen/arch/x86/smpboot.c b/xen/arch/x86/smpboot.c index 80549ad925..3d9df498b1 100644 --- a/xen/arch/x86/smpboot.c +++ b/xen/arch/x86/smpboot.c @@ -48,12 +48,6 @@ #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - #define setup_trampoline() (bootsym_phys(trampoline_realmode_entry)) unsigned long __read_mostly trampoline_phys; diff --git a/xen/arch/x86/tboot.c b/xen/arch/x86/tboot.c index 71e757c553..fb4616ae83 100644 --- a/xen/arch/x86/tboot.c +++ b/xen/arch/x86/tboot.c @@ -184,7 +184,7 @@ static void update_pagetable_mac(vmac_ctx_t *ctx) for ( mfn = 0; mfn < max_page; mfn++ ) { - struct page_info *page = mfn_to_page(mfn); + struct page_info *page = mfn_to_page(_mfn(mfn)); if ( !mfn_valid(_mfn(mfn)) ) continue; @@ -276,7 +276,7 @@ static void tboot_gen_xenheap_integrity(const uint8_t key[TB_KEY_SIZE], vmac_set_key((uint8_t *)key, &ctx); for ( mfn = 0; mfn < max_page; mfn++ ) { - struct page_info *page = __mfn_to_page(mfn); + struct page_info *page = mfn_to_page(_mfn(mfn)); if ( !mfn_valid(_mfn(mfn)) ) continue; diff --git a/xen/arch/x86/traps.c b/xen/arch/x86/traps.c index 016af12bfc..ef2bbdf1c5 100644 --- a/xen/arch/x86/traps.c +++ b/xen/arch/x86/traps.c @@ -835,8 +835,8 @@ int wrmsr_hypervisor_regs(uint32_t idx, uint64_t val) } gdprintk(XENLOG_WARNING, - "Bad GMFN %lx (MFN %lx) to MSR %08x\n", - gmfn, page ? page_to_mfn(page) : -1UL, base); + "Bad GMFN %lx (MFN %#"PRI_mfn") to MSR %08x\n", + gmfn, mfn_x(page ? page_to_mfn(page) : INVALID_MFN), base); return 0; } diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c index a54e2c9be4..7be4e7792a 100644 --- a/xen/arch/x86/x86_64/mm.c +++ b/xen/arch/x86/x86_64/mm.c @@ -40,12 +40,6 @@ asm(".file \"" __FILE__ "\""); #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) - unsigned int __read_mostly m2p_compat_vstart = __HYPERVISOR_COMPAT_VIRT_START; l2_pgentry_t *compat_idle_pg_table_l2; diff --git a/xen/common/domain.c b/xen/common/domain.c index 219a3e325e..caa5f2c062 100644 --- a/xen/common/domain.c +++ b/xen/common/domain.c @@ -1220,7 +1220,7 @@ int map_vcpu_info(struct vcpu *v, unsigned long gfn, unsigned offset) } v->vcpu_info = new_info; - v->vcpu_info_mfn = _mfn(page_to_mfn(page)); + v->vcpu_info_mfn = page_to_mfn(page); /* Set new vcpu_info pointer /before/ setting pending flags. */ smp_wmb(); @@ -1253,7 +1253,7 @@ void unmap_vcpu_info(struct vcpu *v) vcpu_info_reset(v); /* NB: Clobbers v->vcpu_info_mfn */ - put_page_and_type(mfn_to_page(mfn_x(mfn))); + put_page_and_type(mfn_to_page(mfn)); } int default_initialise_vcpu(struct vcpu *v, XEN_GUEST_HANDLE_PARAM(void) arg) diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c index 4bedf5984a..c757b7f6f5 100644 --- a/xen/common/grant_table.c +++ b/xen/common/grant_table.c @@ -40,12 +40,6 @@ #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) - /* Per-domain grant information. */ struct grant_table { /* diff --git a/xen/common/kimage.c b/xen/common/kimage.c index afd8292cc1..210241dfb7 100644 --- a/xen/common/kimage.c +++ b/xen/common/kimage.c @@ -23,12 +23,6 @@ #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - /* * When kexec transitions to the new kernel there is a one-to-one * mapping between physical and virtual addresses. On processors diff --git a/xen/common/memory.c b/xen/common/memory.c index 01f1d2dbc3..df84789797 100644 --- a/xen/common/memory.c +++ b/xen/common/memory.c @@ -33,12 +33,6 @@ #include #endif -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) - struct memop_args { /* INPUT */ struct domain *domain; /* Domain to be affected. */ diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c index 6e50fb2621..186b39a6c8 100644 --- a/xen/common/page_alloc.c +++ b/xen/common/page_alloc.c @@ -151,12 +151,6 @@ #define p2m_pod_offline_or_broken_replace(pg) BUG_ON(pg != NULL) #endif -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) - /* * Comma-separated list of hexadecimal page numbers containing bad bytes. * e.g. 'badpage=0x3f45,0x8a321'. diff --git a/xen/common/tmem.c b/xen/common/tmem.c index 324f42a6f9..c077f87e77 100644 --- a/xen/common/tmem.c +++ b/xen/common/tmem.c @@ -243,7 +243,7 @@ static void tmem_persistent_pool_page_put(void *page_va) struct page_info *pi; ASSERT(IS_PAGE_ALIGNED(page_va)); - pi = mfn_to_page(virt_to_mfn(page_va)); + pi = mfn_to_page(_mfn(virt_to_mfn(page_va))); ASSERT(IS_VALID_PAGE(pi)); __tmem_free_page_thispool(pi); } diff --git a/xen/common/tmem_xen.c b/xen/common/tmem_xen.c index bd52e44faf..bf7b14f79a 100644 --- a/xen/common/tmem_xen.c +++ b/xen/common/tmem_xen.c @@ -14,10 +14,6 @@ #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - bool __read_mostly opt_tmem; boolean_param("tmem", opt_tmem); diff --git a/xen/common/trace.c b/xen/common/trace.c index 2e18702317..1f19b7a604 100644 --- a/xen/common/trace.c +++ b/xen/common/trace.c @@ -243,7 +243,7 @@ static int alloc_trace_bufs(unsigned int pages) /* Now share the trace pages */ for ( i = 0; i < pages; i++ ) { - pg = mfn_to_page(t_info_mfn_list[offset + i]); + pg = mfn_to_page(_mfn(t_info_mfn_list[offset + i])); share_xen_page_with_privileged_guests(pg, XENSHARE_writable); } } @@ -274,7 +274,7 @@ out_dealloc: uint32_t mfn = t_info_mfn_list[offset + i]; if ( !mfn ) break; - ASSERT(!(mfn_to_page(mfn)->count_info & PGC_allocated)); + ASSERT(!(mfn_to_page(_mfn(mfn))->count_info & PGC_allocated)); free_xenheap_pages(mfn_to_virt(mfn), 0); } } diff --git a/xen/common/vmap.c b/xen/common/vmap.c index 04f5db386d..faebc1ddf1 100644 --- a/xen/common/vmap.c +++ b/xen/common/vmap.c @@ -9,10 +9,6 @@ #include #include -/* Override macros from asm/page.h to make them work with mfn_t */ -#undef page_to_mfn -#define page_to_mfn(pg) _mfn(__page_to_mfn(pg)) - static DEFINE_SPINLOCK(vm_lock); static void *__read_mostly vm_base[VMAP_REGION_NR]; #define vm_bitmap(x) ((unsigned long *)vm_base[x]) @@ -274,7 +270,7 @@ static void *vmalloc_type(size_t size, enum vmap_region type) error: while ( i-- ) - free_domheap_page(mfn_to_page(mfn_x(mfn[i]))); + free_domheap_page(mfn_to_page(mfn[i])); xfree(mfn); return NULL; } diff --git a/xen/common/xenoprof.c b/xen/common/xenoprof.c index 5acdde5691..fecdfb3697 100644 --- a/xen/common/xenoprof.c +++ b/xen/common/xenoprof.c @@ -22,8 +22,6 @@ /* Override macros from asm/page.h to make them work with mfn_t */ #undef virt_to_mfn #define virt_to_mfn(va) _mfn(__virt_to_mfn(va)) -#undef mfn_to_page -#define mfn_to_page(mfn) __mfn_to_page(mfn_x(mfn)) /* Limit amount of pages used for shared buffer (per domain) */ #define MAX_OPROF_SHARED_PAGES 32 diff --git a/xen/drivers/passthrough/amd/iommu_map.c b/xen/drivers/passthrough/amd/iommu_map.c index fd2327d3e5..70b4345b37 100644 --- a/xen/drivers/passthrough/amd/iommu_map.c +++ b/xen/drivers/passthrough/amd/iommu_map.c @@ -451,7 +451,7 @@ static int iommu_pde_from_gfn(struct domain *d, unsigned long pfn, BUG_ON( table == NULL || level < IOMMU_PAGING_MODE_LEVEL_1 || level > IOMMU_PAGING_MODE_LEVEL_6 ); - next_table_mfn = page_to_mfn(table); + next_table_mfn = mfn_x(page_to_mfn(table)); if ( level == IOMMU_PAGING_MODE_LEVEL_1 ) { @@ -493,7 +493,7 @@ static int iommu_pde_from_gfn(struct domain *d, unsigned long pfn, return 1; } - next_table_mfn = page_to_mfn(table); + next_table_mfn = mfn_x(page_to_mfn(table)); set_iommu_pde_present((u32*)pde, next_table_mfn, next_level, !!IOMMUF_writable, !!IOMMUF_readable); @@ -520,7 +520,7 @@ static int iommu_pde_from_gfn(struct domain *d, unsigned long pfn, unmap_domain_page(next_table_vaddr); return 1; } - next_table_mfn = page_to_mfn(table); + next_table_mfn = mfn_x(page_to_mfn(table)); set_iommu_pde_present((u32*)pde, next_table_mfn, next_level, !!IOMMUF_writable, !!IOMMUF_readable); } @@ -577,7 +577,7 @@ static int update_paging_mode(struct domain *d, unsigned long gfn) } new_root_vaddr = __map_domain_page(new_root); - old_root_mfn = page_to_mfn(old_root); + old_root_mfn = mfn_x(page_to_mfn(old_root)); set_iommu_pde_present(new_root_vaddr, old_root_mfn, level, !!IOMMUF_writable, !!IOMMUF_readable); level++; @@ -712,7 +712,7 @@ int amd_iommu_map_page(struct domain *d, unsigned long gfn, unsigned long mfn, } /* Deallocate lower level page table */ - free_amd_iommu_pgtable(mfn_to_page(pt_mfn[merge_level - 1])); + free_amd_iommu_pgtable(mfn_to_page(_mfn(pt_mfn[merge_level - 1]))); } out: @@ -802,7 +802,7 @@ void amd_iommu_share_p2m(struct domain *d) mfn_t pgd_mfn; pgd_mfn = pagetable_get_mfn(p2m_get_pagetable(p2m_get_hostp2m(d))); - p2m_table = mfn_to_page(mfn_x(pgd_mfn)); + p2m_table = mfn_to_page(pgd_mfn); if ( hd->arch.root_table != p2m_table ) { diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c index 1aecf7cf34..2c44fabf99 100644 --- a/xen/drivers/passthrough/iommu.c +++ b/xen/drivers/passthrough/iommu.c @@ -184,7 +184,7 @@ void __hwdom_init iommu_hwdom_init(struct domain *d) page_list_for_each ( page, &d->page_list ) { - unsigned long mfn = page_to_mfn(page); + unsigned long mfn = mfn_x(page_to_mfn(page)); unsigned long gfn = mfn_to_gmfn(d, mfn); unsigned int mapping = IOMMUF_readable; int ret; diff --git a/xen/drivers/passthrough/x86/iommu.c b/xen/drivers/passthrough/x86/iommu.c index 0253823173..68182afd91 100644 --- a/xen/drivers/passthrough/x86/iommu.c +++ b/xen/drivers/passthrough/x86/iommu.c @@ -58,7 +58,7 @@ int arch_iommu_populate_page_table(struct domain *d) if ( is_hvm_domain(d) || (page->u.inuse.type_info & PGT_type_mask) == PGT_writable_page ) { - unsigned long mfn = page_to_mfn(page); + unsigned long mfn = mfn_x(page_to_mfn(page)); unsigned long gfn = mfn_to_gmfn(d, mfn); if ( gfn != gfn_x(INVALID_GFN) ) diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h index 023e2eb213..b1d94805d4 100644 --- a/xen/include/asm-arm/mm.h +++ b/xen/include/asm-arm/mm.h @@ -138,7 +138,7 @@ extern vaddr_t xenheap_virt_start; #endif #ifdef CONFIG_ARM_32 -#define is_xen_heap_page(page) is_xen_heap_mfn(__page_to_mfn(page)) +#define is_xen_heap_page(page) is_xen_heap_mfn(mfn_x(page_to_mfn(page))) #define is_xen_heap_mfn(mfn) ({ \ unsigned long mfn_ = (mfn); \ (mfn_ >= mfn_x(xenheap_mfn_start) && \ @@ -147,7 +147,7 @@ extern vaddr_t xenheap_virt_start; #else #define is_xen_heap_page(page) ((page)->count_info & PGC_xen_heap) #define is_xen_heap_mfn(mfn) \ - (mfn_valid(_mfn(mfn)) && is_xen_heap_page(__mfn_to_page(mfn))) + (mfn_valid(_mfn(mfn)) && is_xen_heap_page(mfn_to_page(_mfn(mfn)))) #endif #define is_xen_fixed_mfn(mfn) \ @@ -220,12 +220,14 @@ static inline void __iomem *ioremap_wc(paddr_t start, size_t len) }) /* Convert between machine frame numbers and page-info structures. */ -#define __mfn_to_page(mfn) (frame_table + (pfn_to_pdx(mfn) - frametable_base_pdx)) -#define __page_to_mfn(pg) pdx_to_pfn((unsigned long)((pg) - frame_table) + frametable_base_pdx) +#define mfn_to_page(mfn) \ + (frame_table + (mfn_to_pdx(mfn) - frametable_base_pdx)) +#define page_to_mfn(pg) \ + pdx_to_mfn((unsigned long)((pg) - frame_table) + frametable_base_pdx) /* Convert between machine addresses and page-info structures. */ -#define maddr_to_page(ma) __mfn_to_page((ma) >> PAGE_SHIFT) -#define page_to_maddr(pg) ((paddr_t)__page_to_mfn(pg) << PAGE_SHIFT) +#define maddr_to_page(ma) mfn_to_page(maddr_to_mfn(ma)) +#define page_to_maddr(pg) (mfn_to_maddr(page_to_mfn(pg))) /* Convert between frame number and address formats. */ #define pfn_to_paddr(pfn) ((paddr_t)(pfn) << PAGE_SHIFT) @@ -235,7 +237,7 @@ static inline void __iomem *ioremap_wc(paddr_t start, size_t len) #define gaddr_to_gfn(ga) _gfn(paddr_to_pfn(ga)) #define mfn_to_maddr(mfn) pfn_to_paddr(mfn_x(mfn)) #define maddr_to_mfn(ma) _mfn(paddr_to_pfn(ma)) -#define vmap_to_mfn(va) paddr_to_pfn(virt_to_maddr((vaddr_t)va)) +#define vmap_to_mfn(va) maddr_to_mfn(virt_to_maddr((vaddr_t)va)) #define vmap_to_page(va) mfn_to_page(vmap_to_mfn(va)) /* Page-align address and convert to frame number format */ @@ -293,8 +295,6 @@ static inline uint64_t gvirt_to_maddr(vaddr_t va, paddr_t *pa, * These are overriden in various source files while underscored version * remain intact. */ -#define mfn_to_page(mfn) __mfn_to_page(mfn) -#define page_to_mfn(pg) __page_to_mfn(pg) #define virt_to_mfn(va) __virt_to_mfn(va) #define mfn_to_virt(mfn) __mfn_to_virt(mfn) @@ -314,7 +314,7 @@ static inline struct page_info *virt_to_page(const void *v) static inline void *page_to_virt(const struct page_info *pg) { - return mfn_to_virt(page_to_mfn(pg)); + return mfn_to_virt(mfn_x(page_to_mfn(pg))); } struct page_info *get_page_from_gva(struct vcpu *v, vaddr_t va, diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h index a0abc84ed8..bcac141fd4 100644 --- a/xen/include/asm-arm/p2m.h +++ b/xen/include/asm-arm/p2m.h @@ -278,7 +278,7 @@ static inline struct page_info *get_page_from_gfn( { struct page_info *page; p2m_type_t p2mt; - unsigned long mfn = mfn_x(p2m_lookup(d, _gfn(gfn), &p2mt)); + mfn_t mfn = p2m_lookup(d, _gfn(gfn), &p2mt); if (t) *t = p2mt; @@ -286,7 +286,7 @@ static inline struct page_info *get_page_from_gfn( if ( !p2m_is_any_ram(p2mt) ) return NULL; - if ( !mfn_valid(_mfn(mfn)) ) + if ( !mfn_valid(mfn) ) return NULL; page = mfn_to_page(mfn); diff --git a/xen/include/asm-x86/mm.h b/xen/include/asm-x86/mm.h index 96f3a34fc3..8a1212b84a 100644 --- a/xen/include/asm-x86/mm.h +++ b/xen/include/asm-x86/mm.h @@ -271,7 +271,7 @@ struct page_info #define is_xen_heap_page(page) ((page)->count_info & PGC_xen_heap) #define is_xen_heap_mfn(mfn) \ - (__mfn_valid(mfn) && is_xen_heap_page(__mfn_to_page(mfn))) + (__mfn_valid(mfn) && is_xen_heap_page(mfn_to_page(_mfn(mfn)))) #define is_xen_fixed_mfn(mfn) \ ((((mfn) << PAGE_SHIFT) >= __pa(&_stext)) && \ (((mfn) << PAGE_SHIFT) <= __pa(&__2M_rwdata_end))) @@ -384,7 +384,7 @@ void put_page_from_l1e(l1_pgentry_t l1e, struct domain *l1e_owner); static inline struct page_info *get_page_from_mfn(mfn_t mfn, struct domain *d) { - struct page_info *page = __mfn_to_page(mfn_x(mfn)); + struct page_info *page = mfn_to_page(mfn); if ( unlikely(!mfn_valid(mfn)) || unlikely(!get_page(page, d)) ) { @@ -479,7 +479,7 @@ extern paddr_t mem_hotplug; #define compat_machine_to_phys_mapping ((unsigned int *)RDWR_COMPAT_MPT_VIRT_START) #define _set_gpfn_from_mfn(mfn, pfn) ({ \ - struct domain *d = page_get_owner(__mfn_to_page(mfn)); \ + struct domain *d = page_get_owner(mfn_to_page(_mfn(mfn))); \ unsigned long entry = (d && (d == dom_cow)) ? \ SHARED_M2P_ENTRY : (pfn); \ ((void)((mfn) >= (RDWR_COMPAT_MPT_VIRT_END - RDWR_COMPAT_MPT_VIRT_START) / 4 || \ diff --git a/xen/include/asm-x86/p2m.h b/xen/include/asm-x86/p2m.h index 2e7aa8fc79..c486b6f8f0 100644 --- a/xen/include/asm-x86/p2m.h +++ b/xen/include/asm-x86/p2m.h @@ -488,7 +488,7 @@ static inline struct page_info *get_page_from_gfn( /* Non-translated guests see 1-1 RAM / MMIO mappings everywhere */ if ( t ) *t = likely(d != dom_io) ? p2m_ram_rw : p2m_mmio_direct; - page = __mfn_to_page(gfn); + page = mfn_to_page(_mfn(gfn)); return mfn_valid(_mfn(gfn)) && get_page(page, d) ? page : NULL; } diff --git a/xen/include/asm-x86/page.h b/xen/include/asm-x86/page.h index 45ca742678..c1e92937c0 100644 --- a/xen/include/asm-x86/page.h +++ b/xen/include/asm-x86/page.h @@ -88,10 +88,10 @@ ((paddr_t)(((x).l4 & (PADDR_MASK&PAGE_MASK)))) /* Get pointer to info structure of page mapped by pte (struct page_info *). */ -#define l1e_get_page(x) (__mfn_to_page(l1e_get_pfn(x))) -#define l2e_get_page(x) (__mfn_to_page(l2e_get_pfn(x))) -#define l3e_get_page(x) (__mfn_to_page(l3e_get_pfn(x))) -#define l4e_get_page(x) (__mfn_to_page(l4e_get_pfn(x))) +#define l1e_get_page(x) mfn_to_page(l1e_get_mfn(x)) +#define l2e_get_page(x) mfn_to_page(l2e_get_mfn(x)) +#define l3e_get_page(x) mfn_to_page(l3e_get_mfn(x)) +#define l4e_get_page(x) mfn_to_page(l4e_get_mfn(x)) /* Get pte access flags (unsigned int). */ #define l1e_get_flags(x) (get_pte_flags((x).l1)) @@ -157,10 +157,10 @@ static inline l4_pgentry_t l4e_from_paddr(paddr_t pa, unsigned int flags) #define l4e_from_intpte(intpte) ((l4_pgentry_t) { (intpte_t)(intpte) }) /* Construct a pte from a page pointer and access flags. */ -#define l1e_from_page(page, flags) l1e_from_pfn(__page_to_mfn(page), (flags)) -#define l2e_from_page(page, flags) l2e_from_pfn(__page_to_mfn(page), (flags)) -#define l3e_from_page(page, flags) l3e_from_pfn(__page_to_mfn(page), (flags)) -#define l4e_from_page(page, flags) l4e_from_pfn(__page_to_mfn(page), (flags)) +#define l1e_from_page(page, flags) l1e_from_mfn(page_to_mfn(page), flags) +#define l2e_from_page(page, flags) l2e_from_mfn(page_to_mfn(page), flags) +#define l3e_from_page(page, flags) l3e_from_mfn(page_to_mfn(page), flags) +#define l4e_from_page(page, flags) l4e_from_mfn(page_to_mfn(page), flags) /* Add extra flags to an existing pte. */ #define l1e_add_flags(x, flags) ((x).l1 |= put_pte_flags(flags)) @@ -215,13 +215,13 @@ static inline l4_pgentry_t l4e_from_paddr(paddr_t pa, unsigned int flags) /* Page-table type. */ typedef struct { u64 pfn; } pagetable_t; #define pagetable_get_paddr(x) ((paddr_t)(x).pfn << PAGE_SHIFT) -#define pagetable_get_page(x) __mfn_to_page((x).pfn) +#define pagetable_get_page(x) mfn_to_page(pagetable_get_mfn(x)) #define pagetable_get_pfn(x) ((x).pfn) #define pagetable_get_mfn(x) _mfn(((x).pfn)) #define pagetable_is_null(x) ((x).pfn == 0) #define pagetable_from_pfn(pfn) ((pagetable_t) { (pfn) }) #define pagetable_from_mfn(mfn) ((pagetable_t) { mfn_x(mfn) }) -#define pagetable_from_page(pg) pagetable_from_pfn(__page_to_mfn(pg)) +#define pagetable_from_page(pg) pagetable_from_mfn(page_to_mfn(pg)) #define pagetable_from_paddr(p) pagetable_from_pfn((p)>>PAGE_SHIFT) #define pagetable_null() pagetable_from_pfn(0) @@ -240,12 +240,12 @@ void copy_page_sse2(void *, const void *); #define __mfn_to_virt(mfn) (maddr_to_virt((paddr_t)(mfn) << PAGE_SHIFT)) /* Convert between machine frame numbers and page-info structures. */ -#define __mfn_to_page(mfn) (frame_table + pfn_to_pdx(mfn)) -#define __page_to_mfn(pg) pdx_to_pfn((unsigned long)((pg) - frame_table)) +#define mfn_to_page(mfn) (frame_table + mfn_to_pdx(mfn)) +#define page_to_mfn(pg) pdx_to_mfn((unsigned long)((pg) - frame_table)) /* Convert between machine addresses and page-info structures. */ -#define __maddr_to_page(ma) __mfn_to_page((ma) >> PAGE_SHIFT) -#define __page_to_maddr(pg) ((paddr_t)__page_to_mfn(pg) << PAGE_SHIFT) +#define __maddr_to_page(ma) mfn_to_page(maddr_to_mfn(ma)) +#define __page_to_maddr(pg) mfn_to_maddr(page_to_mfn(pg)) /* Convert between frame number and address formats. */ #define __pfn_to_paddr(pfn) ((paddr_t)(pfn) << PAGE_SHIFT) @@ -264,8 +264,6 @@ void copy_page_sse2(void *, const void *); #define mfn_to_virt(mfn) __mfn_to_virt(mfn) #define virt_to_maddr(va) __virt_to_maddr((unsigned long)(va)) #define maddr_to_virt(ma) __maddr_to_virt((unsigned long)(ma)) -#define mfn_to_page(mfn) __mfn_to_page(mfn) -#define page_to_mfn(pg) __page_to_mfn(pg) #define maddr_to_page(ma) __maddr_to_page(ma) #define page_to_maddr(pg) __page_to_maddr(pg) #define virt_to_page(va) __virt_to_page(va) @@ -273,7 +271,7 @@ void copy_page_sse2(void *, const void *); #define pfn_to_paddr(pfn) __pfn_to_paddr(pfn) #define paddr_to_pfn(pa) __paddr_to_pfn(pa) #define paddr_to_pdx(pa) pfn_to_pdx(paddr_to_pfn(pa)) -#define vmap_to_mfn(va) l1e_get_pfn(*virt_to_xen_l1e((unsigned long)(va))) +#define vmap_to_mfn(va) _mfn(l1e_get_pfn(*virt_to_xen_l1e((unsigned long)(va)))) #define vmap_to_page(va) mfn_to_page(vmap_to_mfn(va)) #endif /* !defined(__ASSEMBLY__) */ diff --git a/xen/include/xen/domain_page.h b/xen/include/xen/domain_page.h index 890bae5b9c..32669a3339 100644 --- a/xen/include/xen/domain_page.h +++ b/xen/include/xen/domain_page.h @@ -34,7 +34,7 @@ void unmap_domain_page(const void *va); /* * Given a VA from map_domain_page(), return its underlying MFN. */ -unsigned long domain_page_map_to_mfn(const void *va); +mfn_t domain_page_map_to_mfn(const void *va); /* * Similar to the above calls, except the mapping is accessible in all @@ -44,11 +44,11 @@ unsigned long domain_page_map_to_mfn(const void *va); void *map_domain_page_global(mfn_t mfn); void unmap_domain_page_global(const void *va); -#define __map_domain_page(pg) map_domain_page(_mfn(__page_to_mfn(pg))) +#define __map_domain_page(pg) map_domain_page(page_to_mfn(pg)) static inline void *__map_domain_page_global(const struct page_info *pg) { - return map_domain_page_global(_mfn(__page_to_mfn(pg))); + return map_domain_page_global(page_to_mfn(pg)); } #else /* !CONFIG_DOMAIN_PAGE */ @@ -56,7 +56,7 @@ static inline void *__map_domain_page_global(const struct page_info *pg) #define map_domain_page(mfn) __mfn_to_virt(mfn_x(mfn)) #define __map_domain_page(pg) page_to_virt(pg) #define unmap_domain_page(va) ((void)(va)) -#define domain_page_map_to_mfn(va) virt_to_mfn((unsigned long)(va)) +#define domain_page_map_to_mfn(va) _mfn(virt_to_mfn((unsigned long)(va))) static inline void *map_domain_page_global(mfn_t mfn) { diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h index caad06e753..204dd9c48d 100644 --- a/xen/include/xen/mm.h +++ b/xen/include/xen/mm.h @@ -277,13 +277,8 @@ struct page_list_head # define PAGE_LIST_NULL ((typeof(((struct page_info){}).list.next))~0) # if !defined(pdx_to_page) && !defined(page_to_pdx) -# if defined(__page_to_mfn) || defined(__mfn_to_page) -# define page_to_pdx __page_to_mfn -# define pdx_to_page __mfn_to_page -# else # define page_to_pdx page_to_mfn # define pdx_to_page mfn_to_page -# endif # endif # define PAGE_LIST_HEAD_INIT(name) { NULL, NULL } diff --git a/xen/include/xen/tmem_xen.h b/xen/include/xen/tmem_xen.h index 542c0b3f20..8516a0b131 100644 --- a/xen/include/xen/tmem_xen.h +++ b/xen/include/xen/tmem_xen.h @@ -25,7 +25,7 @@ typedef uint32_t pagesize_t; /* like size_t, must handle largest PAGE_SIZE */ #define IS_PAGE_ALIGNED(addr) IS_ALIGNED((unsigned long)(addr), PAGE_SIZE) -#define IS_VALID_PAGE(_pi) mfn_valid(_mfn(page_to_mfn(_pi))) +#define IS_VALID_PAGE(_pi) mfn_valid(page_to_mfn(_pi)) extern struct page_list_head tmem_page_list; extern spinlock_t tmem_page_list_lock;