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| author | Zhi Wang <zhi.a.wang@intel.com> | 2016-07-20 01:14:38 -0400 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2016-10-14 18:12:46 +0800 |
| commit | 4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8 (patch) | |
| tree | b9825065a7318e731e1b8cf2a3302472bf300906 /drivers/gpu/drm/i915/gvt/vgpu.c | |
| parent | 2707e44466881d6b0a8ed05a429dcf0940c22f60 (diff) | |
| download | blackbird-op-linux-4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8.tar.gz blackbird-op-linux-4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8.zip | |
drm/i915/gvt: vGPU PCI configuration space virtualization
This patch introduces vGPU PCI configuration space virtualization.
- Adjust the trapped GPFN(Guest Page Frame Number) window of virtual GEN
PCI BAR 0 when guest initializes PCI BAR 0 address.
- Emulate OpRegion when guest touches OpRegion.
- Pass-through a part of aperture to guest when guest initializes
aperture BAR.
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/vgpu.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/vgpu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index a610f5a32947..53308698929a 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -141,6 +141,7 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu) vgpu->active = false; idr_remove(&gvt->vgpu_idr, vgpu->id); + intel_vgpu_clean_opregion(vgpu); intel_vgpu_clean_gtt(vgpu); intel_gvt_hypervisor_detach_vgpu(vgpu); intel_vgpu_free_resource(vgpu); @@ -204,11 +205,19 @@ struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt, if (ret) goto out_detach_hypervisor_vgpu; + if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_KVM) { + ret = intel_vgpu_init_opregion(vgpu, 0); + if (ret) + goto out_clean_gtt; + } + vgpu->active = true; mutex_unlock(&gvt->lock); return vgpu; +out_clean_gtt: + intel_vgpu_clean_gtt(vgpu); out_detach_hypervisor_vgpu: intel_gvt_hypervisor_detach_vgpu(vgpu); out_clean_vgpu_resource: |
