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authorCeping Sun <cepingx.sun@intel.com>2024-02-27 05:18:32 +0800
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>2024-03-19 09:42:06 +0000
commita1a6da80aa80baecfba71a4d8e4c38dbb8f2f4d3 (patch)
treee6125a4d3198d1e6f47d0ceb80af7c0b91f52d5a
parent07c49d5d402429ef4dbe1da5f8371a0a07bcc279 (diff)
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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 <erdemaktas@google.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Min Xu <min.m.xu@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Michael Roth <michael.roth@amd.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Isaku Yamahata <isaku.yamahata@intel.com> Signed-off-by: Ceping Sun <cepingx.sun@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Min Xu <min.m.xu@intel.com>
-rw-r--r--OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm2
1 files changed, 1 insertions, 1 deletions
diff --git a/OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm b/OvmfPkg/Library/CcExitLib/X64/TdVmcallCpuid.nasm
index fa86440904..c9c007352e 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