Re: [Xen-devel] [PATCH v2 4/4] xen: expose that grant table mappings update the IOMMU

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.04.14 at 10:16, <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.

Considering Boris' pending introduction of a hypervisor capabilities
CPUID leaf, I wonder whether we shouldn't stop surfacing HVM-only
features via XENFEAT_* flags (which afaict originally were meant to
be a PV vehicle only anyway).

Jan


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