[PATCH v2] drm/i915/gvt: Limit read hw reg to active vgpu

[Zhenyu Wang]

On 2017.11.07 05:23:02 +0800, Xiong Zhang wrote:
> mmio_read_from_hw() let vgpu could read hw reg, if vgpu's workload
> is running on hw, things is good. Otherwise vgpu will get other
> vgpu's reg val, it is unsafe.
> 
> This patch limit such hw access to active vgpu. If vgpu isn't
> running on hw, the reg read of this vgpu will get the last active
> val which saved at schedule_out.
> 
> v2: ring timestamp is walking continuously even if the ring is idle.
>     so read hw directly. (Zhenyu)
> 
> Signed-off-by: Xiong Zhang <xiong.y.zhang at intel.com>
> ---

applied, thanks!

-- 
Open Source Technology Center, Intel ltd.

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