Re: [Xen-devel] [PATCH 5/7] x86/shadow: Use the pagewalk reserved bits helpers

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.02.17 at 15:03, <andrew.cooper3@xxxxxxxxxx> wrote:
> The shadow logic should never create a shadow of a guest PTE which contains
> reserved bits from the guests point of view.  Such a shadowed entry might not
> cause #PF[RSVD] when walked by hardware, thus won't behave architecturally
> from the guests point of view.

But are we already or-ing in the RSVD bit accordingly in such cases,
before handing the #PF to the guest? The patch here certainly
doesn't make any change towards that, afaics.

Jan


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