Re: [RFC PATCH v4 10/27] drm/i915/gvt: Update _PAGE_DIRTY to _PAGE_DIRTY_BITS

Eugene Syromiatnikov
2018-10-03T13:18:54Z

On Fri, Sep 21, 2018 at 08:03:34AM -0700, Yu-cheng Yu wrote:
> Update _PAGE_DIRTY to _PAGE_DIRTY_BITS in split_2MB_gtt_entry().
>
> In order to support Control Flow Enforcement (CET), _PAGE_DIRTY
> is now _PAGE_DIRTY_HW or _PAGE_DIRTY_SW.
>
> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
> ---
> drivers/gpu/drm/i915/gvt/gtt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
> index 00aad8164dec..2d6ba1462dd8 100644
> --- a/drivers/gpu/drm/i915/gvt/gtt.c
> +++ b/drivers/gpu/drm/i915/gvt/gtt.c
> @@ -1170,7 +1170,7 @@ static int split_2MB_gtt_entry(struct intel_vgpu *vgpu,
> }
>
> /* Clear dirty field. */
> - se->val64 &= ~_PAGE_DIRTY;
> + se->val64 &= ~_PAGE_DIRTY_BITS;

_PAGE_DIRTY_BITS is defined only in "[RFC PATCH v4 11/27] x86/mm:
Introduce _PAGE_DIRTY_SW",