From patchwork Thu Sep 15 11:28:21 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Grall X-Patchwork-Id: 76293 Delivered-To: patch@linaro.org Received: by 10.140.106.72 with SMTP id d66csp2387448qgf; Thu, 15 Sep 2016 04:31:10 -0700 (PDT) X-Received: by 10.107.128.217 with SMTP id k86mr15737535ioi.163.1473939070112; Thu, 15 Sep 2016 04:31:10 -0700 (PDT) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org. [192.237.175.120]) by mx.google.com with ESMTPS id c76si5439549ioa.202.2016.09.15.04.31.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 15 Sep 2016 04:31:10 -0700 (PDT) Received-SPF: neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) client-ip=192.237.175.120; Authentication-Results: mx.google.com; spf=neutral (google.com: 192.237.175.120 is neither permitted nor denied by best guess record for domain of xen-devel-bounces@lists.xen.org) smtp.mailfrom=xen-devel-bounces@lists.xen.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 1bkUqf-0004cc-5a; Thu, 15 Sep 2016 11:28:57 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bkUqd-0004bZ-NF for xen-devel@lists.xen.org; Thu, 15 Sep 2016 11:28:55 +0000 Received: from [193.109.254.147] by server-11.bemta-6.messagelabs.com id 60/C7-08498-7F58AD75; Thu, 15 Sep 2016 11:28:55 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrKLMWRWlGSWpSXmKPExsVysyfVTfdb661 wg9kPpSyWfFzM4sDocXT3b6YAxijWzLyk/IoE1oxL3+wL2jkq1r/cwNrAuJmti5GLQ0hgE6PE sSP/WSCc04wSDVemMXUxcnKwCWhK3Pn8CcwWEZCWuPb5MiNIEbNAO6PE2v5eZpCEsEC0xMOVy 8FsFgFVid0rr7GB2LwCLhLLz7UwgtgSAnISJ49NZu1i5ODgFHCVWPJcFCQsBFRy7MROtgmM3A sYGVYxqhenFpWlFuma6CUVZaZnlOQmZuboGhqY6eWmFhcnpqfmJCYV6yXn525iBHqXAQh2MHZ f9j/EKMnBpCTK65Z2K1yILyk/pTIjsTgjvqg0J7X4EKMMB4eSBO++FqCcYFFqempFWmYOMMxg 0hIcPEoivD9A0rzFBYm5xZnpEKlTjIpS4hB9AiCJjNI8uDZYaF9ilJUS5mUEOkSIpyC1KDezB FX+FaM4B6OSMC8rMFKEeDLzSuCmvwJazAS0eMua6yCLSxIRUlINjAfMdJv/NypMt7kxbfv8B8 dY0j57zf5TfGfKTvlZ9VZHsoKKfk55tPBLRlV6rLrnlsdfpLR1itq9L7kJXfnfb1vgcvnpxI4 FAeYb3wa2Rq3Yec71/s4ZL++UnnqVkv/h5dyyBVs/r9j3muFMn/aB3tPFosYlBg+zL0jP8v/r E7k8fZvU58iIb1OVWIozEg21mIuKEwGKzpn2aAIAAA== X-Env-Sender: julien.grall@arm.com X-Msg-Ref: server-7.tower-27.messagelabs.com!1473938933!54781714!1 X-Originating-IP: [217.140.101.70] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 8.84; banners=-,-,- X-VirusChecked: Checked Received: (qmail 52187 invoked from network); 15 Sep 2016 11:28:54 -0000 Received: from foss.arm.com (HELO foss.arm.com) (217.140.101.70) by server-7.tower-27.messagelabs.com with SMTP; 15 Sep 2016 11:28:54 -0000 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 B6EDD6A8; Thu, 15 Sep 2016 04:28:53 -0700 (PDT) Received: from e108454-lin.cambridge.arm.com (e108454-lin.cambridge.arm.com [10.1.218.32]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B5B793F251; Thu, 15 Sep 2016 04:28:52 -0700 (PDT) From: Julien Grall To: xen-devel@lists.xen.org Date: Thu, 15 Sep 2016 12:28:21 +0100 Message-Id: <1473938919-31976-6-git-send-email-julien.grall@arm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1473938919-31976-1-git-send-email-julien.grall@arm.com> References: <1473938919-31976-1-git-send-email-julien.grall@arm.com> Cc: proskurin@sec.in.tum.de, Julien Grall , sstabellini@kernel.org, steve.capper@arm.com, wei.chen@linaro.org Subject: [Xen-devel] [for-4.8][PATCH v2 05/23] xen/arm: p2m: Add a back pointer to domain in p2m_domain X-BeenThere: xen-devel@lists.xen.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.xen.org Sender: "Xen-devel" The back pointer will be usefult later to get the domain when we only have the p2m in hand. Signed-off-by: Julien Grall --- Changes in v2: - Patch added --- xen/arch/arm/p2m.c | 1 + xen/include/asm-arm/p2m.h | 3 +++ 2 files changed, 4 insertions(+) diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c index 950a607..5cf136f 100644 --- a/xen/arch/arm/p2m.c +++ b/xen/arch/arm/p2m.c @@ -1391,6 +1391,7 @@ int p2m_init(struct domain *d) if ( rc != 0 ) return rc; + p2m->domain = d; p2m->max_mapped_gfn = _gfn(0); p2m->lowest_mapped_gfn = _gfn(ULONG_MAX); diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h index b9269e4..b27a3a1 100644 --- a/xen/include/asm-arm/p2m.h +++ b/xen/include/asm-arm/p2m.h @@ -81,6 +81,9 @@ struct p2m_domain { * enough available bits to store this information. */ struct radix_tree_root mem_access_settings; + + /* back pointer to domain */ + struct domain *domain; }; /*