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

This is based on sha1 dd3ba82d31a6 and pushed out at
https://github.com/aik/edk2/commits/debugswap

The corresponding Linux change (HV and VM) is here:
https://github.com/aik/linux/commits/debugswap
and has just been posted to lkml/etc as
"[PATCH kernel 0/3] KVM: SEV: Enable AMD SEV-ES DebugSwap"

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 | 5 +-
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, 158 insertions(+), 11 deletions(-)

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2.38.1