diff options
| author | Alex Williamson <alex.williamson@redhat.com> | 2016-05-26 09:43:22 -0600 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2016-05-26 11:12:03 -0600 |
| commit | 6ced0bba70ff557792b781ad35366de03bcd105b (patch) | |
| tree | ec36f82ca2405383597b4b4db1f1c15c7ba6d9de /hw/vfio/pci.h | |
| parent | c4c45e943e519f5ac220f7af1afb2a0025d03c54 (diff) | |
vfio/pci: Add a separate option for IGD OpRegion support
The IGD OpRegion is enabled automatically when running in legacy mode,
but it can sometimes be useful in universal passthrough mode as well.
Without an OpRegion, output spigots don't work, and even though Intel
doesn't officially support physical outputs in UPT mode, it's a
useful feature. Note that if an OpRegion is enabled but a monitor is
not connected, some graphics features will be disabled in the guest
versus a headless system without an OpRegion, where they would work.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/vfio/pci.h')
| -rw-r--r-- | hw/vfio/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h index 31ee8da4de..b3eb0d838e 100644 --- a/hw/vfio/pci.h +++ b/hw/vfio/pci.h @@ -129,6 +129,9 @@ typedef struct VFIOPCIDevice { #define VFIO_FEATURE_ENABLE_VGA (1 << VFIO_FEATURE_ENABLE_VGA_BIT) #define VFIO_FEATURE_ENABLE_REQ_BIT 1 #define VFIO_FEATURE_ENABLE_REQ (1 << VFIO_FEATURE_ENABLE_REQ_BIT) +#define VFIO_FEATURE_ENABLE_IGD_OPREGION_BIT 2 +#define VFIO_FEATURE_ENABLE_IGD_OPREGION \ + (1 << VFIO_FEATURE_ENABLE_IGD_OPREGION_BIT) int32_t bootindex; uint32_t igd_gms; uint8_t pm_cap; @@ -161,4 +164,7 @@ void vfio_setup_resetfn_quirk(VFIOPCIDevice *vdev); int vfio_populate_vga(VFIOPCIDevice *vdev); +int vfio_pci_igd_opregion_init(VFIOPCIDevice *vdev, + struct vfio_region_info *info); + #endif /* HW_VFIO_VFIO_PCI_H */ |