Re: [Intel-gfx] [PATCH v8 2/9] drm/i915: vgpu shared memory setup for pv optimization

2019-07-23 Thread Zhang, Xiaolin
On 07/23/2019 06:37 PM, Chris Wilson wrote: > Quoting Xiaolin Zhang (2019-07-23 12:31:57) >> To enable vgpu pv features, we need to setup a shared memory page >> which will be used for data exchange directly accessed between both >> guest and backend i915 driver to avoid emulation trap cost. >> >>

Re: [Intel-gfx] [PATCH v8 2/9] drm/i915: vgpu shared memory setup for pv optimization

2019-07-23 Thread Chris Wilson
Quoting Xiaolin Zhang (2019-07-23 12:31:57) > To enable vgpu pv features, we need to setup a shared memory page > which will be used for data exchange directly accessed between both > guest and backend i915 driver to avoid emulation trap cost. > > guest i915 will allocate this page memory and

[Intel-gfx] [PATCH v8 2/9] drm/i915: vgpu shared memory setup for pv optimization

2019-07-22 Thread Xiaolin Zhang
To enable vgpu pv features, we need to setup a shared memory page which will be used for data exchange directly accessed between both guest and backend i915 driver to avoid emulation trap cost. guest i915 will allocate this page memory and then pass it's physical address to backend i915 driver