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UefiCpuPkg/CpuCommonFeaturesLib: SMXE bit of CR4 should set

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Add code to set SMXE in CR4 in the SmxInitialize flow when SMX is enabled.

Signed-off-by: Jason Voelz <jason.voelz@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
This commit is contained in:
Jason Voelz 2019-12-23 14:55:37 +08:00 committed by mergify[bot]
parent 859046e000
commit 1f0d809629
1 changed files with 9 additions and 0 deletions
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9
UefiCpuPkg/Library/CpuCommonFeaturesLib/FeatureControl.c
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@ -240,6 +240,15 @@ SmxInitialize (
Status = RETURN_UNSUPPORTED; Status = RETURN_UNSUPPORTED;
} }
CPU_REGISTER_TABLE_WRITE_FIELD (
ProcessorNumber,
ControlRegister,
4,
IA32_CR4,
Bits.SMXE,
(State) ? 1 : 0
)
CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD ( CPU_REGISTER_TABLE_TEST_THEN_WRITE_FIELD (
ProcessorNumber, ProcessorNumber,
Msr, Msr,