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| author | Alex Williamson <alex.williamson@redhat.com> | 2016-02-23 02:02:45 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2016-02-23 02:10:09 +0300 |
| commit | f572a960a15e8bb56599f6d2358a9c18f0808e91 (patch) | |
| tree | 7010cab19cd6604f8d17d3dbb27611635e1870c9 /include | |
| parent | 5846ff54e87d8bab4f1e330af0b5407747a0a57e (diff) | |
| download | linux-f572a960a15e8bb56599f6d2358a9c18f0808e91.tar.xz | |
vfio/pci: Intel IGD host and LCP bridge config space access
Provide read-only access to PCI config space of the PCI host bridge
and LPC bridge through device specific regions. This may be used to
configure a VM with matching register contents to satisfy driver
requirements. Providing this through the vfio file descriptor removes
an additional userspace requirement for access through pci-sysfs and
removes the CAP_SYS_ADMIN requirement that doesn't appear to apply to
the specific devices we're accessing.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/vfio.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index e622982dbc53..255a2113f53c 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -283,7 +283,10 @@ struct vfio_region_info_cap_type { #define VFIO_REGION_TYPE_PCI_VENDOR_TYPE (1 << 31) #define VFIO_REGION_TYPE_PCI_VENDOR_MASK (0xffff) +/* 8086 Vendor sub-types */ #define VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION (1) +#define VFIO_REGION_SUBTYPE_INTEL_IGD_HOST_CFG (2) +#define VFIO_REGION_SUBTYPE_INTEL_IGD_LPC_CFG (3) /** * VFIO_DEVICE_GET_IRQ_INFO - _IOWR(VFIO_TYPE, VFIO_BASE + 9, |