From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47390C3A5A9 for ; Sat, 18 Apr 2020 14:42:33 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1C34621D82 for ; Sat, 18 Apr 2020 14:42:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="d5B+HIj0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1C34621D82 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id E7FF72041F; Sat, 18 Apr 2020 14:42:32 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pTFWZZwmVCnL; Sat, 18 Apr 2020 14:42:32 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 7152E203E6; Sat, 18 Apr 2020 14:42:32 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 57229C1D7E; Sat, 18 Apr 2020 14:42:32 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 383DCC0172 for ; Sat, 18 Apr 2020 14:42:30 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 21490877D0 for ; Sat, 18 Apr 2020 14:42:30 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qMbowlYjbGF9 for ; Sat, 18 Apr 2020 14:42:29 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by whitealder.osuosl.org (Postfix) with ESMTPS id 86E8C87775 for ; Sat, 18 Apr 2020 14:42:29 +0000 (UTC) Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AE98421974; Sat, 18 Apr 2020 14:42:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587220949; bh=v7Vipc0VT/4/+NWQ5NLJhdexjHV4UhMafyaRIs4x8WU=; h=From:To:Cc:Subject:Date:From; b=d5B+HIj0GX6/EAc49VIuu5zc+jixmQgtniJc9x+ZudPLTAfGvwNB/E30W5T3GNfQL 5iEAw3NBlSLmDq29aJlraF3FuTJm+HwGEzuBHVSiMb2tNe8lz2m45NtB0MDw8JvcWf IJGdMan6GqLosFFmic8Gekvd+3HOFGoSn7HvXymY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 01/47] iommu/amd: Fix the configuration of GCR3 table root pointer Date: Sat, 18 Apr 2020 10:41:41 -0400 Message-Id: <20200418144227.9802-1-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Cc: Sasha Levin , iommu@lists.linux-foundation.org, Joerg Roedel , Adrian Huang X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" From: Adrian Huang [ Upstream commit c20f36534666e37858a14e591114d93cc1be0d34 ] The SPA of the GCR3 table root pointer[51:31] masks 20 bits. However, this requires 21 bits (Please see the AMD IOMMU specification). This leads to the potential failure when the bit 51 of SPA of the GCR3 table root pointer is 1'. Signed-off-by: Adrian Huang Fixes: 52815b75682e2 ("iommu/amd: Add support for IOMMUv2 domain mode") Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin --- drivers/iommu/amd_iommu_types.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h index 69f3d4c95b530..859b06424e5c4 100644 --- a/drivers/iommu/amd_iommu_types.h +++ b/drivers/iommu/amd_iommu_types.h @@ -352,7 +352,7 @@ #define DTE_GCR3_VAL_A(x) (((x) >> 12) & 0x00007ULL) #define DTE_GCR3_VAL_B(x) (((x) >> 15) & 0x0ffffULL) -#define DTE_GCR3_VAL_C(x) (((x) >> 31) & 0xfffffULL) +#define DTE_GCR3_VAL_C(x) (((x) >> 31) & 0x1fffffULL) #define DTE_GCR3_INDEX_A 0 #define DTE_GCR3_INDEX_B 1 -- 2.20.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu