[edk2-devel] [PATCH ovmf v3 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

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

v2 failed CI so here is v3 but with cosmetic changes only.

This is based on sha1
fecf55a66a1c Michael Roth "OvmfPkg/CcExitLib: Drop special handling for Encrypted MMIO to APIC".

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                    | 15 ++++-
 MdePkg/Include/Register/Amd/Fam17Msr.h                             | 63 ++++++++++++++++++--
 OvmfPkg/Include/Library/MemEncryptSevLib.h                         | 12 ++++
 OvmfPkg/Library/BaseMemEncryptSevLib/DxeMemEncryptSevLibInternal.c | 27 ++++++++-
 OvmfPkg/Library/BaseMemEncryptSevLib/PeiMemEncryptSevLibInternal.c | 19 ++++++
 OvmfPkg/Library/BaseMemEncryptSevLib/SecMemEncryptSevLibInternal.c | 19 ++++++
 OvmfPkg/Library/CcExitLib/CcExitVcHandler.c                        |  8 +++
 OvmfPkg/PlatformPei/AmdSev.c                                       | 13 +++-
 UefiCpuPkg/Library/MpInitLib/MpLib.c                               | 12 +++-
 9 files changed, 173 insertions(+), 15 deletions(-)

-- 
2.44.0



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