> From: Joonas Lahtinen [mailto:joonas.lahti...@linux.intel.com]
> Sent: Wednesday, April 12, 2017 9:22 PM
>
[...]
> By my limited understanding of VT-d details: The stolen memory is never
> directly accessed by i915 driver (because CPU access doesn't work even
> in DOM0). It is only used through
> + Kevin and David
>
> On ke, 2017-04-12 at 20:20 +0800, Xiong Zhang wrote:
> > Stolen memory isn't a standard pci resource and exists in RMRR which has
> > identity mapping in iommu table, IGD could access stolen memory in host
> OS.
> > While according to 'commit c875d2c1b808 ("iommu/vt-d: Excl
+ Kevin and David
On ke, 2017-04-12 at 20:20 +0800, Xiong Zhang wrote:
> Stolen memory isn't a standard pci resource and exists in RMRR which has
> identity mapping in iommu table, IGD could access stolen memory in host OS.
> While according to 'commit c875d2c1b808 ("iommu/vt-d: Exclude devices us
