On 22/4/24 22:16, Alexey Kardashevskiy wrote:
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
I finally got CI happy, here is the pull request:
github.com/tianocore/edk2/pull/5594
How do I proceed from here? Repost patches here or that pull request
will do? I did not change anything besides spaces and CCs. Thanks,
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(-)
--
Alexey
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