Re: [PATCH 0/4] Fixes for SEV-SNP CC blob and CPUID table handling

["Roth, Michael" <Michael.Roth@amd.com>]

On Wed, Dec 21, 2022 at 10:06:47AM -0600, Michael Roth wrote:
> 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

Adding some Cc's from Maintainers.txt that I should have included
originally:

  Ard Biesheuvel <ardb+tianocore@kernel.org>
  Jiewen Yao <jiewen.yao@intel.com>
  Gerd Hoffmann <kraxel@redhat.com>
  Erdem Aktas <erdemaktas@google.com>
  James Bottomley <jejb@linux.ibm.com>
  Min Xu <min.m.xu@intel.com>

Thanks,

Mike

> 
>  OvmfPkg/AmdSevDxe/AmdSevDxe.c                          | 64 ++++++++++++++++++++++++++++++++++----------
>  OvmfPkg/Include/Guid/ConfidentialComputingSevSnpBlob.h |  6 +++--
>  OvmfPkg/Library/CcExitLib/CcExitVcHandler.c            | 13 ++++-----
>  3 files changed, 59 insertions(+), 24 deletions(-)
> 
>