drm/i915/gvt: Use KVM r/w to access guest opregion

For KVMGT, the guest opregion, which is handled by VFIO, is actually a
piece of guest memory which won't be accessed by devices. So, its mfn
shouldn't be obtained through VFIO interface. This patch uses KVM r/w
interface to access the data in guest opregion.

Fix the guest opregion accessing issue when host "intel_iommu=on".

v3:
- Remove mapped flag for KVM/VFIO usage, as it's useless for KVM.

v2:
- Set the gpa correctly when invoking KVM r/w operations. (Zhenyu)

Signed-off-by: Tina Zhang <[email protected]>
Cc: Yan Zhao <[email protected]>
Cc: Xiong Zhang <[email protected]>
Signed-off-by: Zhi Wang <[email protected]>
Signed-off-by: Rodrigo Vivi <[email protected]>

0 files changed, 0 insertions, 0 deletions