[Intel-gfx] [PATCH v2 1/4] drm/i915/gvt: reorder the shadow ppgtt update process by adding entry first

[Joonas Lahtinen]

On pe, 2017-05-12 at 17:37 +0800, Tina Zhang wrote:
> Guest i915 driver may update the ppgtt table just before this workload
> is going to be submitted to the hardware by device model. This case
> wasn't handled well by device model before, due to the small time
> window between removing old ppgtt entry and adding the new one. Errors
> occur when the workload is executed by hardware during that small time
> window. This patch is to remove this time window by adding the new ppgtt
> entry first and then remove the old one.
> 
> Signed-off-by: Tina Zhang <tina.zhang at intel.com>

This should be reviewed on the GVT mailing list, and this should
include the squashed hunk which exports the newly added capability.

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation