[PATCH v1 1/5] drm/i915/gvt: GVTg handle enable_pvmmio PVINFO register

[Zhenyu Wang]

On 2018.11.05 17:20:45 +0800, Xiaolin Zhang wrote:
> implement enable_pvmmio PVINFO register handler in GVTg to
> control different level pvmmio optimization within guest.
> 
> report VGT_CAPS_PVMMIO capability in pvinfo page for guest.
> 

Another thing that I think is not consistent for these pv interface
which is the guest to host notification is not aligned, some are none
e.g share page setup, master irq, some are implicitly through specific
MMIO write, e.g execlist port. Which seems not good to me. We should
have a formal notification definition for all of them e.g through
current 'g2v' notification interface, looks ppgtt update uses that. So
host would handle pv request when receiving notification consistently,
instead of having different ways which is not good to track.

Thanks
-- 
Open Source Technology Center, Intel ltd.

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