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=HEADER_FROM_DIFFERENT_DOMAINS, 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 DE02BC4332E for ; Sun, 22 Mar 2020 12:27:38 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 BBE6C20769 for ; Sun, 22 Mar 2020 12:27:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BBE6C20769 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 99F5087ED9; Sun, 22 Mar 2020 12:27:38 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XXD1LpvG7w4i; Sun, 22 Mar 2020 12:27:38 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 1EA2F87EAA; Sun, 22 Mar 2020 12:27:38 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 1163CC1D89; Sun, 22 Mar 2020 12:27:38 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 9D226C0177 for ; Sun, 22 Mar 2020 12:27:35 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 8CE9186302 for ; Sun, 22 Mar 2020 12:27:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id D5gJbctGQoDN for ; Sun, 22 Mar 2020 12:27:33 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 2179686440 for ; Sun, 22 Mar 2020 12:27:33 +0000 (UTC) IronPort-SDR: 5ERbfuaoYg5nxMTS9Q1ECkpn79jqGIdG+vVbSqaAIzLnB4zKJPVYctaSO2tod0Ehtfpajyy+yE 6hNivKqGH5lA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Mar 2020 05:27:32 -0700 IronPort-SDR: JTj7uc0RiWhatZgQOskzWH3SQgaANaBTrPWHGcjeB0aAHqUXXZDrkkbmGHYOeY5sGRaaqQUQso t0QFsS+FgF1g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,292,1580803200"; d="scan'208";a="356846585" Received: from jacob-builder.jf.intel.com ([10.7.199.155]) by fmsmga001.fm.intel.com with ESMTP; 22 Mar 2020 05:27:32 -0700 From: "Liu, Yi L" To: alex.williamson@redhat.com, eric.auger@redhat.com Subject: [PATCH v1 1/2] vfio/pci: Expose PCIe PASID capability to guest Date: Sun, 22 Mar 2020 05:33:13 -0700 Message-Id: <1584880394-11184-2-git-send-email-yi.l.liu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1584880394-11184-1-git-send-email-yi.l.liu@intel.com> References: <1584880394-11184-1-git-send-email-yi.l.liu@intel.com> Cc: jean-philippe@linaro.org, kevin.tian@intel.com, ashok.raj@intel.com, kvm@vger.kernel.org, jun.j.tian@intel.com, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, yi.y.sun@intel.com, hao.wu@intel.com 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: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" From: Liu Yi L This patch exposes PCIe PASID capability to guest. Existing vfio_pci driver hides it from guest by setting the capability length as 0 in pci_ext_cap_length[]. This capability is required for vSVA enabling on pass-through PCIe devices. Cc: Kevin Tian CC: Jacob Pan Cc: Alex Williamson Cc: Eric Auger Cc: Jean-Philippe Brucker Signed-off-by: Liu Yi L --- drivers/vfio/pci/vfio_pci_config.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c index 90c0b80..4b9af99 100644 --- a/drivers/vfio/pci/vfio_pci_config.c +++ b/drivers/vfio/pci/vfio_pci_config.c @@ -95,7 +95,7 @@ static const u16 pci_ext_cap_length[PCI_EXT_CAP_ID_MAX + 1] = { [PCI_EXT_CAP_ID_LTR] = PCI_EXT_CAP_LTR_SIZEOF, [PCI_EXT_CAP_ID_SECPCI] = 0, /* not yet */ [PCI_EXT_CAP_ID_PMUX] = 0, /* not yet */ - [PCI_EXT_CAP_ID_PASID] = 0, /* not yet */ + [PCI_EXT_CAP_ID_PASID] = PCI_EXT_CAP_PASID_SIZEOF, }; /* -- 2.7.4 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu