Reviewed-by: Min Xu <min.m...@intel.com>

> -----Original Message-----
> From: Sun, CepingX <cepingx....@intel.com>
> Sent: Tuesday, February 27, 2024 5:19 AM
> To: devel@edk2.groups.io
> Cc: Sun, CepingX <cepingx....@intel.com>; Aktas, Erdem
> <erdemak...@google.com>; James Bottomley <j...@linux.ibm.com>; Yao,
> Jiewen <jiewen....@intel.com>; Xu, Min M <min.m...@intel.com>; Tom
> Lendacky <thomas.lenda...@amd.com>; Michael Roth
> <michael.r...@amd.com>; Gerd Hoffmann <kra...@redhat.com>;
> Yamahata, Isaku <isaku.yamah...@intel.com>
> Subject: [PATCH V1 2/3] OvmfPkg/CcExitLib: Update
> TDVMCALL_EXPOSE_REGS_MASK
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4696
> 
> Refer to the [GHCI] spec, TDVF should clear the BIT5 for RBP in the mask.
> 
> Reference:
> [GHCI]: TDX Guest-Host-Communication Interface v1.5
> https://cdrdv2.intel.com/v1/dl/getContent/726792
> 
> Cc: Erdem Aktas <erdemak...@google.com>
> Cc: James Bottomley <j...@linux.ibm.com>
> Cc: Jiewen Yao <jiewen....@intel.com>
> Cc: Min Xu <min.m...@intel.com>
> Cc: Tom Lendacky <thomas.lenda...@amd.com>
> Cc: Michael Roth <michael.r...@amd.com>
> Cc: Gerd Hoffmann <kra...@redhat.com>
> Cc: Isaku Yamahata <isaku.yamah...@intel.com>
> Signed-off-by: Ceping Sun <cepingx....@intel.com>
> ---
>  OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm
> b/OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm
> index fa86440904fe..c9c007352e8d 100644
> --- a/OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm
> +++ b/OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm
> @@ -9,7 +9,7 @@
>  DEFAULT REL
>  SECTION .text
> 
> -%define TDVMCALL_EXPOSE_REGS_MASK       0xffec
> +%define TDVMCALL_EXPOSE_REGS_MASK       0xffcc
>  %define TDVMCALL                        0x0
>  %define EXIT_REASON_CPUID               0xa
> 
> --
> 2.34.1



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