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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/gvt.c | |
| parent | 2707e44466881d6b0a8ed05a429dcf0940c22f60 (diff) | |
| download | linux-4d60c5fd3f8751ea751d6dc6cfe0c1620420ccf8.tar.bz2 | |
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/gvt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gvt.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c index 5063c672736d..c6e063ec6c5d 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.c +++ b/drivers/gpu/drm/i915/gvt/gvt.c @@ -42,6 +42,11 @@ static const char * const supported_hypervisors[] = { [INTEL_GVT_HYPERVISOR_KVM] = "KVM", }; +struct intel_gvt_io_emulation_ops intel_gvt_io_emulation_ops = { + .emulate_cfg_read = intel_vgpu_emulate_cfg_read, + .emulate_cfg_write = intel_vgpu_emulate_cfg_write, +}; + /** * intel_gvt_init_host - Load MPT modules and detect if we're running in host * @gvt: intel gvt device @@ -122,6 +127,7 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv) if (WARN_ON(!gvt->initialized)) return; + intel_gvt_clean_opregion(gvt); intel_gvt_clean_gtt(gvt); intel_gvt_clean_irq(gvt); intel_gvt_clean_mmio_info(gvt); @@ -179,10 +185,16 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv) if (ret) goto out_clean_irq; + ret = intel_gvt_init_opregion(gvt); + if (ret) + goto out_clean_gtt; + gvt_dbg_core("gvt device creation is done\n"); gvt->initialized = true; return 0; +out_clean_gtt: + intel_gvt_clean_gtt(gvt); out_clean_irq: intel_gvt_clean_irq(gvt); out_free_firmware: |