From: Liu Yi L <yi.l.liu@intel.com> To: alex.williamson@redhat.com, eric.auger@redhat.com, baolu.lu@linux.intel.com, joro@8bytes.org Cc: kevin.tian@intel.com, jacob.jun.pan@linux.intel.com, ashok.raj@intel.com, yi.l.liu@intel.com, jun.j.tian@intel.com, yi.y.sun@intel.com, jean-philippe@linaro.org, peterx@redhat.com, jasowang@redhat.com, hao.wu@intel.com, stefanha@gmail.com, iommu@lists.linux-foundation.org, kvm@vger.kernel.org Subject: [PATCH v7 13/16] vfio/pci: Expose PCIe PASID capability to guest Date: Thu, 10 Sep 2020 03:45:30 -0700 [thread overview] Message-ID: <1599734733-6431-14-git-send-email-yi.l.liu@intel.com> (raw) In-Reply-To: <1599734733-6431-1-git-send-email-yi.l.liu@intel.com> This patch exposes PCIe PASID capability to guest for assigned devices. Existing vfio_pci driver hides it from guest by setting the capability length as 0 in pci_ext_cap_length[]. And this patch only exposes PASID capability for devices which has PCIe PASID extended struture in its configuration space. VFs will not expose the PASID capability as they do not implement the PASID extended structure in their config space. It is a TODO in future. Related discussion can be found in below link: https://lore.kernel.org/kvm/20200407095801.648b1371@w520.home/ Cc: Kevin Tian <kevin.tian@intel.com> CC: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Eric Auger <eric.auger@redhat.com> Cc: Jean-Philippe Brucker <jean-philippe@linaro.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Liu Yi L <yi.l.liu@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> --- v5 -> v6: *) add review-by from Eric Auger. v1 -> v2: *) added in v2, but it was sent in a separate patchseries before --- 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 d98843f..07ff2e6 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
WARNING: multiple messages have this Message-ID (diff)
From: Liu Yi L <yi.l.liu@intel.com> To: alex.williamson@redhat.com, eric.auger@redhat.com, baolu.lu@linux.intel.com, joro@8bytes.org Cc: jean-philippe@linaro.org, kevin.tian@intel.com, ashok.raj@intel.com, kvm@vger.kernel.org, stefanha@gmail.com, jun.j.tian@intel.com, iommu@lists.linux-foundation.org, yi.y.sun@intel.com, jasowang@redhat.com, hao.wu@intel.com Subject: [PATCH v7 13/16] vfio/pci: Expose PCIe PASID capability to guest Date: Thu, 10 Sep 2020 03:45:30 -0700 [thread overview] Message-ID: <1599734733-6431-14-git-send-email-yi.l.liu@intel.com> (raw) In-Reply-To: <1599734733-6431-1-git-send-email-yi.l.liu@intel.com> This patch exposes PCIe PASID capability to guest for assigned devices. Existing vfio_pci driver hides it from guest by setting the capability length as 0 in pci_ext_cap_length[]. And this patch only exposes PASID capability for devices which has PCIe PASID extended struture in its configuration space. VFs will not expose the PASID capability as they do not implement the PASID extended structure in their config space. It is a TODO in future. Related discussion can be found in below link: https://lore.kernel.org/kvm/20200407095801.648b1371@w520.home/ Cc: Kevin Tian <kevin.tian@intel.com> CC: Jacob Pan <jacob.jun.pan@linux.intel.com> Cc: Alex Williamson <alex.williamson@redhat.com> Cc: Eric Auger <eric.auger@redhat.com> Cc: Jean-Philippe Brucker <jean-philippe@linaro.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Liu Yi L <yi.l.liu@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> --- v5 -> v6: *) add review-by from Eric Auger. v1 -> v2: *) added in v2, but it was sent in a separate patchseries before --- 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 d98843f..07ff2e6 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
next prev parent reply other threads:[~2020-09-10 10:49 UTC|newest] Thread overview: 165+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-10 10:45 [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 01/16] iommu: Report domain nesting info Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-11 19:38 ` Alex Williamson 2020-09-11 19:38 ` Alex Williamson 2020-09-10 10:45 ` [PATCH v7 02/16] iommu/smmu: Report empty " Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2021-01-12 6:50 ` Vivek Gautam 2021-01-12 6:50 ` Vivek Gautam 2021-01-12 9:21 ` Liu, Yi L 2021-01-12 9:21 ` Liu, Yi L 2021-01-12 11:05 ` Vivek Gautam 2021-01-12 11:05 ` Vivek Gautam 2021-01-13 5:56 ` Liu, Yi L 2021-01-13 5:56 ` Liu, Yi L 2021-01-19 10:03 ` Auger Eric 2021-01-19 10:03 ` Auger Eric 2021-01-23 8:59 ` Liu, Yi L 2021-01-23 8:59 ` Liu, Yi L 2021-02-12 7:14 ` Vivek Gautam 2021-02-12 7:14 ` Vivek Gautam 2021-02-12 9:57 ` Auger Eric 2021-02-12 9:57 ` Auger Eric 2021-02-12 10:18 ` Vivek Kumar Gautam 2021-02-12 10:18 ` Vivek Kumar Gautam 2021-02-12 11:01 ` Vivek Kumar Gautam 2021-02-12 11:01 ` Vivek Kumar Gautam 2021-03-03 9:44 ` Liu, Yi L 2021-03-03 9:44 ` Liu, Yi L 2020-09-10 10:45 ` [PATCH v7 03/16] vfio/type1: Report iommu nesting info to userspace Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-11 20:16 ` Alex Williamson 2020-09-11 20:16 ` Alex Williamson 2020-09-12 8:24 ` Liu, Yi L 2020-09-12 8:24 ` Liu, Yi L 2020-09-10 10:45 ` [PATCH v7 04/16] vfio: Add PASID allocation/free support Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-11 20:54 ` Alex Williamson 2020-09-11 20:54 ` Alex Williamson 2020-09-15 4:03 ` Liu, Yi L 2020-09-15 4:03 ` Liu, Yi L 2020-09-10 10:45 ` [PATCH v7 05/16] iommu/vt-d: Support setting ioasid set to domain Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 06/16] iommu/vt-d: Remove get_task_mm() in bind_gpasid() Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 07/16] vfio/type1: Add VFIO_IOMMU_PASID_REQUEST (alloc/free) Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-11 21:38 ` Alex Williamson 2020-09-11 21:38 ` Alex Williamson 2020-09-12 6:17 ` Liu, Yi L 2020-09-10 10:45 ` [PATCH v7 08/16] iommu: Pass domain to sva_unbind_gpasid() Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 09/16] iommu/vt-d: Check ownership for PASIDs from user-space Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 10/16] vfio/type1: Support binding guest page tables to PASID Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-11 22:03 ` Alex Williamson 2020-09-11 22:03 ` Alex Williamson 2020-09-12 6:02 ` Liu, Yi L 2020-09-12 6:02 ` Liu, Yi L 2020-09-10 10:45 ` [PATCH v7 11/16] vfio/type1: Allow invalidating first-level/stage IOMMU cache Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 12/16] vfio/type1: Add vSVA support for IOMMU-backed mdevs Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` Liu Yi L [this message] 2020-09-10 10:45 ` [PATCH v7 13/16] vfio/pci: Expose PCIe PASID capability to guest Liu Yi L 2020-09-11 22:13 ` Alex Williamson 2020-09-11 22:13 ` Alex Williamson 2020-09-12 7:17 ` Liu, Yi L 2020-09-12 7:17 ` Liu, Yi L 2020-09-10 10:45 ` [PATCH v7 14/16] vfio: Document dual stage control Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 15/16] iommu/vt-d: Only support nesting when nesting caps are consistent across iommu units Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-10 10:45 ` [PATCH v7 16/16] iommu/vt-d: Support reporting nesting capability info Liu Yi L 2020-09-10 10:45 ` Liu Yi L 2020-09-14 4:20 ` [PATCH v7 00/16] vfio: expose virtual Shared Virtual Addressing to VMs Jason Wang 2020-09-14 4:20 ` Jason Wang 2020-09-14 8:01 ` Tian, Kevin 2020-09-14 8:01 ` Tian, Kevin 2020-09-14 8:57 ` Jason Wang 2020-09-14 8:57 ` Jason Wang 2020-09-14 10:38 ` Tian, Kevin 2020-09-14 10:38 ` Tian, Kevin 2020-09-14 11:38 ` Jason Gunthorpe 2020-09-14 11:38 ` Jason Gunthorpe 2020-09-14 13:31 ` Jean-Philippe Brucker 2020-09-14 13:31 ` Jean-Philippe Brucker 2020-09-14 13:47 ` Jason Gunthorpe 2020-09-14 13:47 ` Jason Gunthorpe 2020-09-14 16:22 ` Raj, Ashok 2020-09-14 16:22 ` Raj, Ashok 2020-09-14 16:33 ` Jason Gunthorpe 2020-09-14 16:33 ` Jason Gunthorpe 2020-09-14 16:58 ` Alex Williamson 2020-09-14 16:58 ` Alex Williamson 2020-09-14 17:41 ` Jason Gunthorpe 2020-09-14 17:41 ` Jason Gunthorpe 2020-09-14 18:23 ` Alex Williamson 2020-09-14 18:23 ` Alex Williamson 2020-09-14 19:00 ` Jason Gunthorpe 2020-09-14 19:00 ` Jason Gunthorpe 2020-09-14 22:33 ` Alex Williamson 2020-09-14 22:33 ` Alex Williamson 2020-09-15 14:29 ` Jason Gunthorpe 2020-09-15 14:29 ` Jason Gunthorpe 2020-09-16 1:19 ` Tian, Kevin 2020-09-16 1:19 ` Tian, Kevin 2020-09-16 8:32 ` Jean-Philippe Brucker 2020-09-16 8:32 ` Jean-Philippe Brucker 2020-09-16 14:51 ` Jason Gunthorpe 2020-09-16 14:51 ` Jason Gunthorpe 2020-09-16 16:20 ` Jean-Philippe Brucker 2020-09-16 16:20 ` Jean-Philippe Brucker 2020-09-16 16:32 ` Jason Gunthorpe 2020-09-16 16:32 ` Jason Gunthorpe 2020-09-16 16:50 ` Auger Eric 2020-09-16 16:50 ` Auger Eric 2020-09-16 14:44 ` Jason Gunthorpe 2020-09-16 14:44 ` Jason Gunthorpe 2020-09-17 6:01 ` Tian, Kevin 2020-09-17 6:01 ` Tian, Kevin 2020-09-14 22:44 ` Raj, Ashok 2020-09-15 11:33 ` Jason Gunthorpe 2020-09-15 11:33 ` Jason Gunthorpe 2020-09-15 18:11 ` Raj, Ashok 2020-09-15 18:11 ` Raj, Ashok 2020-09-15 18:45 ` Jason Gunthorpe 2020-09-15 18:45 ` Jason Gunthorpe 2020-09-15 19:26 ` Raj, Ashok 2020-09-15 19:26 ` Raj, Ashok 2020-09-15 23:45 ` Jason Gunthorpe 2020-09-15 23:45 ` Jason Gunthorpe 2020-09-16 2:33 ` Jason Wang 2020-09-16 2:33 ` Jason Wang 2020-09-15 22:08 ` Jacob Pan 2020-09-15 22:08 ` Jacob Pan 2020-09-15 23:51 ` Jason Gunthorpe 2020-09-15 23:51 ` Jason Gunthorpe 2020-09-16 0:22 ` Jacob Pan (Jun) 2020-09-16 1:46 ` Lu Baolu 2020-09-16 1:46 ` Lu Baolu 2020-09-16 15:07 ` Jason Gunthorpe 2020-09-16 15:07 ` Jason Gunthorpe 2020-09-16 16:33 ` Raj, Ashok 2020-09-16 16:33 ` Raj, Ashok 2020-09-16 17:01 ` Jason Gunthorpe 2020-09-16 17:01 ` Jason Gunthorpe 2020-09-16 18:21 ` Jacob Pan (Jun) 2020-09-16 18:21 ` Jacob Pan (Jun) 2020-09-16 18:38 ` Jason Gunthorpe 2020-09-16 18:38 ` Jason Gunthorpe 2020-09-16 23:09 ` Jacob Pan (Jun) 2020-09-16 23:09 ` Jacob Pan (Jun) 2020-09-17 3:53 ` Jason Wang 2020-09-17 3:53 ` Jason Wang 2020-09-17 17:31 ` Jason Gunthorpe 2020-09-17 17:31 ` Jason Gunthorpe 2020-09-17 18:17 ` Jacob Pan (Jun) 2020-09-17 18:17 ` Jacob Pan (Jun) 2020-09-18 3:58 ` Jason Wang 2020-09-18 3:58 ` Jason Wang 2020-09-16 2:29 ` Jason Wang 2020-09-16 2:29 ` Jason Wang
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