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SecuritPkg: Tcg2Smm: Add PlatformClass to TPM2 Table 

Add PlatformClass info into TPM2 ACPI table, it is only valid with table
Rev 4 and later.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Yao Jiewen <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>
This commit is contained in:
Zhang, Chao B 2017-01-12 10:42:29 +08:00
parent 713e4b007c
commit bf3b7aae71
2 changed files with 11 additions and 0 deletions
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10
SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
View File

@ -512,6 +512,16 @@ PublishTpm2 (
mTpm2AcpiTemplate.Header.Revision = PcdGet8(PcdTpm2AcpiTableRev);
DEBUG((DEBUG_INFO, "Tpm2 ACPI table revision is %d\n", mTpm2AcpiTemplate.Header.Revision));
//
// PlatformClass is only valid for version 4 and above
// BIT0~15: PlatformClass
// BIT16~31: Reserved
//
if (mTpm2AcpiTemplate.Header.Revision >= EFI_TPM2_ACPI_TABLE_REVISION_4) {
mTpm2AcpiTemplate.Flags = (mTpm2AcpiTemplate.Flags & 0xFFFF0000) | PcdGet8(PcdTpmPlatformClass);
DEBUG((DEBUG_INFO, "Tpm2 ACPI table PlatformClass is %d\n", (mTpm2AcpiTemplate.Flags & 0x0000FFFF)));
}
//
// Measure to PCR[0] with event EV_POST_CODE ACPI DATA
//

1
SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf
View File

@ -74,6 +74,7 @@
gEfiSecurityPkgTokenSpaceGuid.PcdTpmBaseAddress ## CONSUMES
gEfiSecurityPkgTokenSpaceGuid.PcdTcgPhysicalPresenceInterfaceVer ## CONSUMES
gEfiSecurityPkgTokenSpaceGuid.PcdTpm2AcpiTableRev ## CONSUMES
gEfiSecurityPkgTokenSpaceGuid.PcdTpmPlatformClass ## SOMETIMES_CONSUMES
[Depex]
gEfiAcpiTableProtocolGuid AND