Messages in this thread Patch in this message | | | From | "Liu, Yi L" <> | Subject | [RFC v1 1/2] vfio/pci: Expose PCIe PASID capability to guest | Date | Wed, 29 Jan 2020 04:18:44 -0800 |
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From: Liu Yi L <yi.l.liu@intel.com>
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 <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.brucker@arm.com> Signed-off-by: Liu Yi L <yi.l.liu@intel.com> --- 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
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