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| author | Brijesh Singh via groups.io <brijesh.singh=amd.com@groups.io> | 2021-12-09 11:27:33 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-12-09 06:28:10 +0000 |
| commit | 707c71a01b9d00e0e40db500edb288e6cecdc032 (patch) | |
| tree | 76e04a68272333e259bd886d3bd75e9e7a9f9e02 /OvmfPkg/ResetVector/ResetVector.nasmb | |
| parent | 3053183d417ae9e72fa05fd858ad6da15cbef7f9 (diff) | |
| download | edk2-707c71a01b9d00e0e40db500edb288e6cecdc032.tar.gz edk2-707c71a01b9d00e0e40db500edb288e6cecdc032.tar.bz2 edk2-707c71a01b9d00e0e40db500edb288e6cecdc032.zip | |
OvmfPkg: reserve SNP secrets page
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.
Cc: Michael Roth <michael.roth@amd.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Diffstat (limited to 'OvmfPkg/ResetVector/ResetVector.nasmb')
| -rw-r--r-- | OvmfPkg/ResetVector/ResetVector.nasmb | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/OvmfPkg/ResetVector/ResetVector.nasmb b/OvmfPkg/ResetVector/ResetVector.nasmb index d847794fea..4e685ef236 100644 --- a/OvmfPkg/ResetVector/ResetVector.nasmb +++ b/OvmfPkg/ResetVector/ResetVector.nasmb @@ -103,6 +103,8 @@ %define SEV_ES_WORK_AREA_RDRAND (FixedPcdGet32 (PcdSevEsWorkAreaBase) + 8)
%define SEV_ES_WORK_AREA_ENC_MASK (FixedPcdGet32 (PcdSevEsWorkAreaBase) + 16)
%define SEV_ES_VC_TOP_OF_STACK (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))
+ %define SEV_SNP_SECRETS_BASE (FixedPcdGet32 (PcdOvmfSnpSecretsBase))
+ %define SEV_SNP_SECRETS_SIZE (FixedPcdGet32 (PcdOvmfSnpSecretsSize))
%include "X64/IntelTdxMetadata.asm"
%include "Ia32/Flat32ToFlat64.asm"
|