tree f1e4fb8f87406ad05111d1a233d456fb9618489c
parent 3e68928b7d4c833726717ced2261f77479d98a47
author Hang Yuan <hang.yuan@linux.intel.com> 1540883281 +0800
committer Chris Wilson <chris@chris-wilson.co.uk> 1540975065 +0000

drm/i915/gtt: Revert "Disable read-only support under GVT"

This reverts commit c9e666880de5a1fed04dc412b046916d542b72dd.

Checked GVT codes that guest PPGTT PTE flag bits are propagated
to shadow PTE. Read/write bit is not changed. Further tested by
i915 self-test case "igt_ctx_readonly". No error or GPU hang was
detected. So enable read-only support under GVT.

Signed-off-by: Hang Yuan <hang.yuan@linux.intel.com>
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1540883281-11359-1-git-send-email-hang.yuan@linux.intel.com
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>