[edk2-devel] [PATCH ovmf v2 0/5] Enable AMD SEV-ES DebugSwap

["Alexey Kardashevskiy via groups.io" <aik=amd.com@groups.io>]

This is to prevent #DB interception on SEV-ES VM with
enabled DebugSwap feature, more details in 3/5.

The corresponding Linux change (HV and VM) went upstream
long time ago:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e221804dad4e
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d1f85fbe836e

And then I dropped the ball, sorry.

The previous conversation (more than a year ago) is here:
https://edk2.groups.io/g/devel/message/96808

This failed CI though (figuring out this not-that-trivial Uncrustify guy now):
https://dev.azure.com/tianocore/edk2-ci/_build/results?buildId=123642&view=logs&j=ec42d809-3c3b-54a9-276c-e54a8b9aaee9&t=bd91c6c3-6d75-5ede-7b63-5767cf827334

This is based on sha1
6780b3aba086 Abner Chang "Maintainers: AMD as SPI driver stack maintainer".

Please comment. Thanks.



Alexey Kardashevskiy (5):
  MdePkg/Register/Amd: Define all bits from MSR_SEV_STATUS_REGISTER
  MdePkg: Add AMD SEV features to PcdConfidentialComputingGuestAttr
  OvmfPkg: Add AMD SEV-ES DebugSwap feature support
  UefiCpuPkg: Add AMD SEV-ES features support
  OvmfPkf: Enable AMD SEV-ES DebugSwap for DXE

 MdePkg/Include/ConfidentialComputingGuestAttr.h                    | 16 +++++-
 MdePkg/Include/Register/Amd/Fam17Msr.h                             | 57 +++++++++++++++++++-
 OvmfPkg/Include/Library/MemEncryptSevLib.h                         | 12 +++++
 OvmfPkg/Library/BaseMemEncryptSevLib/DxeMemEncryptSevLibInternal.c | 25 +++++++--
 OvmfPkg/Library/BaseMemEncryptSevLib/PeiMemEncryptSevLibInternal.c | 19 +++++++
 OvmfPkg/Library/BaseMemEncryptSevLib/SecMemEncryptSevLibInternal.c | 20 +++++++
 OvmfPkg/Library/CcExitLib/CcExitVcHandler.c                        |  8 +++
 OvmfPkg/PlatformPei/AmdSev.c                                       | 13 +++--
 UefiCpuPkg/Library/MpInitLib/MpLib.c                               | 10 ++--
 9 files changed, 168 insertions(+), 12 deletions(-)

-- 
2.41.0



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