Hi,
> >>>>>> Check if that page is defined; if it is, skip it in the metadata
> >>>>>> list.
> >>>>>> In such case, VMM should fill the page with the hashes content, or
> >>>>>> explicitly update it as a zero page (if kernel hashes are not used).
> >>>>>
> >>>>> Is it an option to just skip the page unconditionally?
> >>>>>
> >>>>> I think in the OvmfPkgX64 build the page is not used, so it probably
> >>>>> doesn't matter whenever it is included or not, and it would make
> >>>>> things
> >>>>> a bit less confusing ...
> // The below address range was part of the SEV OVMF metadata, and range
> // should be pre-validated by the Hypervisor.
> {
> FixedPcdGet32 (PcdOvmfSecPageTablesBase),
> FixedPcdGet32 (PcdOvmfPeiMemFvBase),
> },
> As the comment says, it assumes the entire range
> from PcdOvmfSecPageTablesBase (= 0x800000)
> to PcdOvmfPeiMemFvBase (= 0x820000)
> is pre-validated by the Hypervisor.
>
> How will it know to actually validate that page at 0x80F000 ?
Probably it doesn't unless we split the entry into two, so we are
effectively trading making the reset vector more complicated vs.
making this list more complicated.
I guess it's not worth the trouble then.
Acked-by: Gerd Hoffmann <kra...@redhat.com>
for or the original patch (and thanks for investigating).
take care,
Gerd
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