Difference between revisions of "Merged Drivers"
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[[File:Intel GVT-g Capabilities.png|thumb|Intel's slides mention the ability to accelerate up to '8 VMs plus DOM0'. Source: https://01.org/sites/default/files/documentation/an_introduction_to_intel_gvt-g_for_external.pdf]] | [[File:Intel GVT-g Capabilities.png|thumb|Intel's slides mention the ability to accelerate up to '8 VMs plus DOM0'. Source: https://01.org/sites/default/files/documentation/an_introduction_to_intel_gvt-g_for_external.pdf]] | ||
Intel currently supports host DRM and VFIO-Mdev functionality in it's [https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/i915 i915 driver sources]. | Intel currently supports host DRM and VFIO-Mdev functionality in it's [https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/i915 i915 driver sources]. | ||
[[File:Intel i915 Host DRM + VFIO-Mdev..png|thumb|A diagram depicting i915's shared host + VFIO-Mdev driver model.]] | |||
=== Known Issues === | |||
-SR-IOV functionality is undocumented in the [https://01.org/linuxgraphics/gfx-docs/drm/gpu/i915.html i915 driver API documentation].<blockquote>Confirmed affected versions: '''*'''</blockquote>[[File:Intel i915 Host DRM + VFIO-Mdev..png|thumb|A diagram depicting i915's shared host + VFIO-Mdev driver model.]] | |||
== Nvidia == | == Nvidia == | ||
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== AMDGPU + GPU-IOV Module Merged == | == AMDGPU + GPU-IOV Module Merged == | ||
At this time AMDGPU does not currently support VFIO-Mdev functionality. It may be possible to merge the [https://github.com/GPUOpen-LibrariesAndSDKs/MxGPU-Virtualization GPU-IOV Module (GIM) sources] with the [https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/amd/amdgpu Linux kernel's AMDGPU driver sources] to produce a merged driver for use on AMD GPUs. | At this time AMDGPU does not currently support VFIO-Mdev functionality. It may be possible to merge the [https://github.com/GPUOpen-LibrariesAndSDKs/MxGPU-Virtualization GPU-IOV Module (GIM) sources] with the [https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/amd/amdgpu Linux kernel's AMDGPU driver sources] to produce a merged driver for use on AMD GPUs. | ||
=== Known Issues === | |||
-Hardware accelerated encoding/decoding via GPU-IOV Module (GIM) does not work.<blockquote>Confirmed affected versions: '''3.0'''</blockquote> | |||
Revision as of 17:40, 18 April 2022
The following page will provide specifications and details on the current state of host DRM + VFIO-Mdev drivers in support of various vendors.
Intel i915
Intel currently supports host DRM and VFIO-Mdev functionality in it's i915 driver sources.
Known Issues
-SR-IOV functionality is undocumented in the i915 driver API documentation.
Confirmed affected versions: *
Nvidia
For more information on host DRM and VFIO-Mdev support on Nvidia drivers refer to section 6 of the vGPU Community Wiki.
Known Issues
-Power management on laptops running mediated graphics functionality may causes graphical errors when not plugged in to AC power.
Confirmed affected versions: 460.32.01, 460.73.04
-VFIO-vmalloc errors may occur as a result of page collisions between host & guest on GPUs with smaller VRAM frame buffer sizes.
Confirmed affected versions: 460.32.01, 460.73.04
AMDGPU + GPU-IOV Module Merged
At this time AMDGPU does not currently support VFIO-Mdev functionality. It may be possible to merge the GPU-IOV Module (GIM) sources with the Linux kernel's AMDGPU driver sources to produce a merged driver for use on AMD GPUs.
Known Issues
-Hardware accelerated encoding/decoding via GPU-IOV Module (GIM) does not work.
Confirmed affected versions: 3.0