[Intel-gfx] [PATCH 05/20] drm/i915: introduce page_size members

[Chris Wilson]

Quoting Matthew Auld (2017-06-29 12:54:51)
> On 29 June 2017 at 07:36, Zhenyu Wang <zhenyuw at linux.intel.com> wrote:
> > We need to fallback to default supported page size when vGPU is active (intel_vgpu_active() is true).
> > Currently gvt gtt handling can't support huge page entry yet, we need to check either hypervisor
> > mm can support huge guest page or just do emulation in gvt.
> That should already be the case, since the guest doesn't support the
> 48b PPGTT. But it looks you are working to change that, so I guess we
> should just do this anyway?

Fwiw, I think it makes sense just to sanitize the
mkwrite_intel_info()->page_sizes under virtualisation. Primarily to
document what we know does not work at the moment and so different
features can be enabled individually. Or just disable gvt :-p
-Chris