(Rebased series and resending due to merge conflict with previous
submission.)
Here are a number of fixes related to OVMF handling of the SEV-SNP
Confidential Computing blob and CPUID table.
Patch #1 is a fix for recently-reported issue that can cause
significant problems with some SEV-SNP guest operating systems.
Please consider applying this patch directly if the other
patches in this series are held up for any reason.
Patches 2-4 are minor changes for things that aren't currently
triggered in practice, but make OVMF's SEV-SNP implementation more
robust for different build/hypervisor environments in the future.
Patch #2 was submitted previously, but refreshed here to apply
cleanly on top of Patch #1, with no other functional changes since
the initial review.
----------------------------------------------------------------
Michael Roth (4):
OvmfPkg/AmdSevDxe: Allocate SEV-SNP CC blob as EfiACPIReclaimMemory
OvmfPkg/AmdSevDxe: Update ConfidentialComputing blob struct definition
OvmfPkg/CcExitLib: Fix SEV-SNP XSave area size calculation
OvmfPkg/CcExitLib: Use documented XSave area base size for SEV-SNP
OvmfPkg/AmdSevDxe/AmdSevDxe.c | 64
++++++++++++++++++++++++++++++++++++++++++++++++++--------------
OvmfPkg/Include/Guid/ConfidentialComputingSevSnpBlob.h | 6 ++++--
OvmfPkg/Library/CcExitLib/CcExitVcHandler.c | 13 +++++--------
3 files changed, 59 insertions(+), 24 deletions(-)
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