drm/intel: guest i915 changes for Broadwell to run inside VM with Intel GVT-g
cover drm/intel: guest i915 changes for Broadwell to run inside VM with Intel GVT-g
I915 kernel driver can now work inside a virtual machine on Haswell with Intel GVT-g. In order to do the same thing on Broadwell, there are some extra changes needed. The two main things are to support the more complicated PPGTT page table structure and EXECLIST contexts. GVT-g will perform shadow PPGTT and shadow context, which requires guest driver to explicitly notify host device model the life cycle of PPGTT and EXECLIST contexts.
The first and the forth patches added some restrictions to drivers in virtualization scenario to make the shadow work easier. The first patch is based on Mika's earlier one, but we use it for vgpu only. The sixth patch is the implementation of the notification for shadowing.
Zhiyuan Lv (7):
drm/i915: preallocate pdps for 32 bit vgpu drm/i915: Enable full ppgtt for vgpu
drm/i915: Always enable execlists on BDW for vgpu drm/i915: always pin lrc context for vgpu with Intel GVT-g drm/i915: Update PV INFO page definition for Intel GVT-g drm/i915: guest i915 notification for Intel-GVTg drm/i915: Allow Broadwell guest with Intel GVT-g
drivers/gpu/drm/i915/i915_gem_gtt.c | 77 +++++++++++++++++++++++++++++++++++-- drivers/gpu/drm/i915/i915_vgpu.c | 2 +- drivers/gpu/drm/i915/i915_vgpu.h | 34 +++++++++++++++- drivers/gpu/drm/i915/intel_lrc.c | 44 ++++++++++++++++++--- 4 files changed, 145 insertions(+), 12 deletions(-)
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1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Quoted 8 lines · Zhiyuan Lv
I915 kernel driver can now work inside a virtual machine on Haswell with Intel GVT-g. In order to do the same thing on Broadwell, there are some extra changes needed. The two main things are to support the more complicated PPGTT page table structure and EXECLIST contexts. GVT-g will perform shadow PPGTT and shadow context, which requires guest driver to explicitly notify host device model the life cycle of PPGTT and EXECLIST contexts.
Quoted 5 lines
The first and the forth patches added some restrictions to drivers in virtualization scenario to make the shadow work easier. The first patch is based on Mika's earlier one, but we use it for vgpu only. The sixth patch is the implementation of the notification for shadowing.
Please send your patches with git send-email, or otherwise ensure the patches are in-reply-to the cover letter to keep review in one thread.
BR,
Jani.
Quoted 23 lines
Zhiyuan Lv (7):
drm/i915: preallocate pdps for 32 bit vgpu drm/i915: Enable full ppgtt for vgpu
drm/i915: Always enable execlists on BDW for vgpu drm/i915: always pin lrc context for vgpu with Intel GVT-g drm/i915: Update PV INFO page definition for Intel GVT-g drm/i915: guest i915 notification for Intel-GVTg drm/i915: Allow Broadwell guest with Intel GVT-gdrivers/gpu/drm/i915/i915_gem_gtt.c | 77 +++++++++++++++++++++++++++++++++++-- drivers/gpu/drm/i915/i915_vgpu.c | 2 +- drivers/gpu/drm/i915/i915_vgpu.h | 34 +++++++++++++++- drivers/gpu/drm/i915/intel_lrc.c | 44 ++++++++++++++++++--- 4 files changed, 145 insertions(+), 12 deletions(-)Signature · 6 lines
1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 5 lines
Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Hi Jani,
Quoted 9 lines · Jani Nikula
Quoted 8 lines · Zhiyuan Lv
I915 kernel driver can now work inside a virtual machine on Haswell with Intel GVT-g. In order to do the same thing on Broadwell, there are some extra changes needed. The two main things are to support the more complicated PPGTT page table structure and EXECLIST contexts. GVT-g will perform shadow PPGTT and shadow context, which requires guest driver to explicitly notify host device model the life cycle of PPGTT and EXECLIST contexts.
Quoted 8 lines
Quoted 5 lines
The first and the forth patches added some restrictions to drivers in virtualization scenario to make the shadow work easier. The first patch is based on Mika's earlier one, but we use it for vgpu only. The sixth patch is the implementation of the notification for shadowing.
Please send your patches with git send-email, or otherwise ensure the patches are in-reply-to the cover letter to keep review in one thread.
Thanks for the comments! I just re-sent the patchset, and these ones can be ignored. Sorry for the inconvenience caused!
Regards,
-Zhiyuan
Quoted 21 lines
BR,
Jani.Quoted 16 lines
Zhiyuan Lv (7):
drm/i915: preallocate pdps for 32 bit vgpu drm/i915: Enable full ppgtt for vgpu
drm/i915: Always enable execlists on BDW for vgpu drm/i915: always pin lrc context for vgpu with Intel GVT-g drm/i915: Update PV INFO page definition for Intel GVT-g drm/i915: guest i915 notification for Intel-GVTg drm/i915: Allow Broadwell guest with Intel GVT-gdrivers/gpu/drm/i915/i915_gem_gtt.c | 77 +++++++++++++++++++++++++++++++++++-- drivers/gpu/drm/i915/i915_vgpu.c | 2 +- drivers/gpu/drm/i915/i915_vgpu.h | 34 +++++++++++++++- drivers/gpu/drm/i915/intel_lrc.c | 44 ++++++++++++++++++--- 4 files changed, 145 insertions(+), 12 deletions(-)
Quoted 10 lines
Quoted 7 lines
Signature · 6 lines
1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfxSignature · 1 line
Jani Nikula, Intel Open Source Technology Center
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