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UefiCpuPkg: Add PCD to control SMRR enable & SmmFeatureControl support

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3962

Two SMM variables (mSmrrSupported & mSmmFeatureControlSupported) are global
variables, they control whether the SMRR and SMM Feature Control MSR will
be restored respectively.
To avoid the TOCTOU, add PCD to control SMRR & SmmFeatureControl enable.

Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
This commit is contained in:
Wu, Jiaxin
2022-07-29 14:25:55 +08:00
committed by mergify[bot]
parent 367604b2f4
commit 76ec17526b
6 changed files with 48 additions and 23 deletions
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12
UefiCpuPkg/UefiCpuPkg.uni
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@@ -100,6 +100,18 @@
"TRUE - locked.<BR>\n"
"FALSE - unlocked.<BR>"
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSmrrEnable_PROMPT #language en-US "Indicates if SMRR will be enabled."
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSmrrEnable_HELP #language en-US "Indicates if SMRR will be enabled.<BR><BR>\n"
"TRUE - SMRR will be enabled.<BR>\n"
"FALSE - SMRR will not be enabled.<BR>"
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSmmFeatureControlEnable_PROMPT #language en-US "Indicates if SmmFeatureControl will be enabled."
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdSmmFeatureControlEnable_HELP #language en-US "Indicates if SmmFeatureControl will be enabled.<BR><BR>\n"
"TRUE - SmmFeatureControl will be enabled.<BR>\n"
"FALSE - SmmFeatureControl will not be enabled.<BR>"
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdPeiTemporaryRamStackSize_PROMPT #language en-US "Stack size in the temporary RAM"
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdPeiTemporaryRamStackSize_HELP #language en-US "Specifies stack size in the temporary RAM. 0 means half of TemporaryRamSize."