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 6CA2AC38A2F for ; Sat, 18 Apr 2020 13:48:26 +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 43F152220A for ; Sat, 18 Apr 2020 13:48:26 +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="wB7ijBeH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 43F152220A 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 182E920409; Sat, 18 Apr 2020 13:48:26 +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 d-Futlg1KfAV; Sat, 18 Apr 2020 13:48:25 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 284BB20031; Sat, 18 Apr 2020 13:48:25 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 1A6A1C089F; Sat, 18 Apr 2020 13:48:25 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id C5965C0172 for ; Sat, 18 Apr 2020 13:48:23 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id B1FA8203DC for ; Sat, 18 Apr 2020 13:48:23 +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 tnXCi5zHo6Gd for ; Sat, 18 Apr 2020 13:48:22 +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 silver.osuosl.org (Postfix) with ESMTPS id 2B9B920031 for ; Sat, 18 Apr 2020 13:48:22 +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 187242054F; Sat, 18 Apr 2020 13:48:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587217701; bh=Nl8580RGoaAQ7Ng7SmAE+bVCFZ+t8ZBxjYRq/AvSuTU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wB7ijBeHJHQ3zhXbBb+Daq24tHIkYMEtvPtSnRXVhyG4G6KJYO+zFuJZCe5SYuVBf pKDHyitzq/R9CxEsIdVehUMjC0jmfXk+aksJ+XswbtX9KRygHrtmzAquc+85Mp6N1r 6Lc3Ye2/u8Xg1TqunAP1dHGrEzKo7M3DnWAc+cMs= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.6 05/73] iommu/vt-d: Fix page request descriptor size Date: Sat, 18 Apr 2020 09:47:07 -0400 Message-Id: <20200418134815.6519-5-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200418134815.6519-1-sashal@kernel.org> References: <20200418134815.6519-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Cc: Sasha Levin , iommu@lists.linux-foundation.org, Joerg Roedel 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: Jacob Pan [ Upstream commit 52355fb1919ef7ed9a38e0f3de6e928de1f57217 ] Intel VT-d might support PRS (Page Reqest Support) when it's running in the scalable mode. Each page request descriptor occupies 32 bytes and is 32-bytes aligned. The page request descriptor offset mask should be 32-bytes aligned. Fixes: 5b438f4ba315d ("iommu/vt-d: Support page request in scalable mode") Signed-off-by: Lu Baolu Signed-off-by: Liu Yi L Signed-off-by: Jacob Pan Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin --- drivers/iommu/intel-svm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c index d7f2a53589002..edac769fc03d8 100644 --- a/drivers/iommu/intel-svm.c +++ b/drivers/iommu/intel-svm.c @@ -531,7 +531,7 @@ struct page_req_dsc { u64 priv_data[2]; }; -#define PRQ_RING_MASK ((0x1000 << PRQ_ORDER) - 0x10) +#define PRQ_RING_MASK ((0x1000 << PRQ_ORDER) - 0x20) static bool access_error(struct vm_area_struct *vma, struct page_req_dsc *req) { -- 2.20.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu