[edk2-devel] [PATCH v9 05/32] OvmfPkg: reserve SNP secrets page

Gerd Hoffmann kraxel at redhat.com
Thu Oct 14 07:09:25 UTC 2021


On Wed, Oct 13, 2021 at 11:56:46AM -0500, Brijesh Singh wrote:
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275
> 
> During the SNP guest launch sequence, a special secrets page needs to be
> inserted by the VMM. The PSP will populate the page; it will contain the
> VM Platform Communication Key (VMPCKs) used by the guest to send and
> receive secure messages to the PSP.
> 
> The purpose of the secrets page in the SEV-SNP is different from the one
> used in SEV guests. In SEV, the secrets page contains the guest owner's
> private data after the remote attestation.

Acked-by: Gerd Hoffmann <kraxel at redhat.com>



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