From patchwork Wed Jan 25 08:23:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Ghiti X-Patchwork-Id: 646755 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 45341C27C76 for ; Wed, 25 Jan 2023 08:28:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234879AbjAYI2v (ORCPT ); Wed, 25 Jan 2023 03:28:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234754AbjAYI2u (ORCPT ); Wed, 25 Jan 2023 03:28:50 -0500 Received: from mail-wm1-x32c.google.com (mail-wm1-x32c.google.com [IPv6:2a00:1450:4864:20::32c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 711545FCB for ; Wed, 25 Jan 2023 00:28:49 -0800 (PST) Received: by mail-wm1-x32c.google.com with SMTP id g10so13148655wmo.1 for ; Wed, 25 Jan 2023 00:28:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=7CyWdPwmsoEln1rCKIxbXcZ7tw/K7pVLqcNgYwRXhLM=; b=OisDsC+EIU6/jRjZrG5YFX4xE8/lvWiWrn7vehFtHMjH7D0bf29AeT04n5xGe5fKJp QwzGcRQRPD4oviUUPE7WZPnHk2GiI+k65Kj1+4IqzyFas7V1+uq3scf39HwiUSCDS0bM 3GFbIfDG1qf+5p6j7xF62Am7PdJqMN0hs0O1MBDOyx+VgkEARy7VqAMxUUoozspSuyCb zGptkj2sywHeru4KD/jipfAgT/fDB6eiDqPgV8sNJawFiakebAPzX9f/+aFyeqaELdjM EWj99llip6FBzTieb0mX39hEiGm4J8Aivv2WdB2psRB1QsdCZ2daajNJ816Crq3pUT3I iHGA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=7CyWdPwmsoEln1rCKIxbXcZ7tw/K7pVLqcNgYwRXhLM=; b=Hna9yglV21p0+hwTMZ2IkCMz3KwJenmVEZWaV4tKhZhHCesuo0a2q2nrDmjbHqpxMy nl8ndnP41E0ctPgP0d+0GZLoCQZQRVrXzb/zWdWx6yymn9MFZ/PMyUlifn2sH/qr66ij F1s9NQnINymVKSf6szrHP+fRF3oMshc6+2cEUeFJPpjBaXipJ6Gf6vTQlux2Pr7qD5Vq add3sBWnP6hThy/QPSmPBz6KW8IspYKfJ6ZjGnrv+Ei0FPkvhxQ01OBTj/K8XwQaLl4k 9Kvu6KcUKwQdZngFMHxmTABmG74UXoixOkvArr/1w++sZifKtv5cD53kSkrUtMV6D65j s74Q== X-Gm-Message-State: AFqh2ko9d+6gBBkD4D2dXz/2+Zc6CSLnAa4rnBBcmlZwmyL+T4vWFiKh 4LbfvpGDRgxOERGCEkgILMdt/g== X-Google-Smtp-Source: AMrXdXtQiFRonCSKZgGEtQQk1kbS0BKk/gtu6+bWv/OU7qtsnQJRbTeUZKPdSNWmMFbG9pHM7wQoFw== X-Received: by 2002:a05:600c:43d3:b0:3da:fbcd:cdd2 with SMTP id f19-20020a05600c43d300b003dafbcdcdd2mr31194035wmn.9.1674635328028; Wed, 25 Jan 2023 00:28:48 -0800 (PST) Received: from alex-rivos.home (lfbn-lyo-1-450-160.w2-7.abo.wanadoo.fr. [2.7.42.160]) by smtp.gmail.com with ESMTPSA id d11-20020a05600c3acb00b003db30be4a54sm1080541wms.38.2023.01.25.00.28.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Jan 2023 00:28:47 -0800 (PST) From: Alexandre Ghiti To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Ard Biesheuvel , Conor Dooley , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, linux-efi@vger.kernel.org Cc: Alexandre Ghiti Subject: [PATCH v3 5/6] riscv: Fix ptdump when KASAN is enabled Date: Wed, 25 Jan 2023 09:23:32 +0100 Message-Id: <20230125082333.1577572-6-alexghiti@rivosinc.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230125082333.1577572-1-alexghiti@rivosinc.com> References: <20230125082333.1577572-1-alexghiti@rivosinc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org The KASAN shadow region was moved next to the kernel mapping but the ptdump code was not updated and it appears to break the dump of the kernel page table, so fix this by moving the KASAN shadow region in ptdump. Fixes: f7ae02333d13 ("riscv: Move KASAN mapping next to the kernel mapping") Signed-off-by: Alexandre Ghiti --- arch/riscv/mm/ptdump.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c index 830e7de65e3a..20a9f991a6d7 100644 --- a/arch/riscv/mm/ptdump.c +++ b/arch/riscv/mm/ptdump.c @@ -59,10 +59,6 @@ struct ptd_mm_info { }; enum address_markers_idx { -#ifdef CONFIG_KASAN - KASAN_SHADOW_START_NR, - KASAN_SHADOW_END_NR, -#endif FIXMAP_START_NR, FIXMAP_END_NR, PCI_IO_START_NR, @@ -74,6 +70,10 @@ enum address_markers_idx { VMALLOC_START_NR, VMALLOC_END_NR, PAGE_OFFSET_NR, +#ifdef CONFIG_KASAN + KASAN_SHADOW_START_NR, + KASAN_SHADOW_END_NR, +#endif #ifdef CONFIG_64BIT MODULES_MAPPING_NR, KERNEL_MAPPING_NR, @@ -82,10 +82,6 @@ enum address_markers_idx { }; static struct addr_marker address_markers[] = { -#ifdef CONFIG_KASAN - {0, "Kasan shadow start"}, - {0, "Kasan shadow end"}, -#endif {0, "Fixmap start"}, {0, "Fixmap end"}, {0, "PCI I/O start"}, @@ -97,6 +93,10 @@ static struct addr_marker address_markers[] = { {0, "vmalloc() area"}, {0, "vmalloc() end"}, {0, "Linear mapping"}, +#ifdef CONFIG_KASAN + {0, "Kasan shadow start"}, + {0, "Kasan shadow end"}, +#endif #ifdef CONFIG_64BIT {0, "Modules/BPF mapping"}, {0, "Kernel mapping"}, @@ -362,10 +362,6 @@ static int __init ptdump_init(void) { unsigned int i, j; -#ifdef CONFIG_KASAN - address_markers[KASAN_SHADOW_START_NR].start_address = KASAN_SHADOW_START; - address_markers[KASAN_SHADOW_END_NR].start_address = KASAN_SHADOW_END; -#endif address_markers[FIXMAP_START_NR].start_address = FIXADDR_START; address_markers[FIXMAP_END_NR].start_address = FIXADDR_TOP; address_markers[PCI_IO_START_NR].start_address = PCI_IO_START; @@ -377,6 +373,10 @@ static int __init ptdump_init(void) address_markers[VMALLOC_START_NR].start_address = VMALLOC_START; address_markers[VMALLOC_END_NR].start_address = VMALLOC_END; address_markers[PAGE_OFFSET_NR].start_address = PAGE_OFFSET; +#ifdef CONFIG_KASAN + address_markers[KASAN_SHADOW_START_NR].start_address = KASAN_SHADOW_START; + address_markers[KASAN_SHADOW_END_NR].start_address = KASAN_SHADOW_END; +#endif #ifdef CONFIG_64BIT address_markers[MODULES_MAPPING_NR].start_address = MODULES_VADDR; address_markers[KERNEL_MAPPING_NR].start_address = kernel_map.virt_addr;