Re: [edk2-devel] [PATCH ovmf v3 0/5] Enable AMD SEV-ES DebugSwap

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

Ping? Thanks,


On 3/5/24 00:34, 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
> 
> 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(-)
> 

-- 
Alexey



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