Re: [Xen-devel] [PATCH v3 4/4] xen: expose that grant table mappings update the IOMMU

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.05.14 at 18:33, <roger.pau@xxxxxxxxxx> wrote:
> Add a new XENFEAT_hvm_gntmap_supports_iommu that is used to check
> whether the hypervisor properly updates the IOMMU on auto-translated
> guests when doing a grant table map/unmap operation.

As said before, if this is indeed HVM-only (I assume PVH is being
implied here), this should be exposed via the new CPUID leaf
rather than via the feature map.

Jan


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