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drm/i915/gvt: vGPU MMIO virtualization

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This patch introduces the generic vGPU MMIO emulation intercept
framework.  The MPT modules will request GVT-g core logic to
emulate MMIO read/write through IO emulation operations
callback when hypervisor trapped a guest GTTMMIO read/write.

Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Zhi Wang
2016-09-02 13:33:29 +08:00
committed by Zhenyu Wang
parent 4d60c5fd3f
commit e39c5add32
10 changed files with 1938 additions and 10 deletions
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3
drivers/gpu/drm/i915/gvt/gvt.h
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@@ -87,6 +87,7 @@ struct intel_vgpu_fence {
struct intel_vgpu_mmio {
void *vreg;
void *sreg;
bool disable_warn_untrack;
};
#define INTEL_GVT_MAX_CFG_SPACE_SZ 256
@@ -184,6 +185,8 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt);
#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
#define gvt_ggtt_gm_sz(gvt) (gvt->dev_priv->ggtt.base.total)
#define gvt_ggtt_sz(gvt) \
((gvt->dev_priv->ggtt.base.total >> PAGE_SHIFT) << 3)
#define gvt_hidden_sz(gvt) (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt))
#define gvt_aperture_gmadr_base(gvt) (0)