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authorZhang, Chao B <chao.b.zhang@intel.com>2017-01-12 10:42:29 +0800
committerZhang, Chao B <chao.b.zhang@intel.com>2017-03-09 11:31:26 +0800
commit8ed365abff04f94fdad99553a9e853dabddc031a (patch)
tree8f11b4aa92ccf92f9409b748587d23ae6ff565d0
parentb270df186a126025daa21bb5510bd87dd9d14ae3 (diff)
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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> (cherry picked from commit bf3b7aae7100b60ff8a387f0b7604dbb6ff29fc9)
-rw-r--r--SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c10
-rw-r--r--SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf1
2 files changed, 11 insertions, 0 deletions
diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
index 3569306..325f24e 100644
--- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
+++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c
@@ -499,6 +499,16 @@ PublishTpm2 (
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
//
TpmMeasureAndLogData(
diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf
index 2793242..7018474 100644
--- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf
+++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf
@@ -74,6 +74,7 @@
gEfiSecurityPkgTokenSpaceGuid.PcdTpmBaseAddress ## CONSUMES
gEfiSecurityPkgTokenSpaceGuid.PcdTcgPhysicalPresenceInterfaceVer ## CONSUMES
gEfiSecurityPkgTokenSpaceGuid.PcdTpm2AcpiTableRev ## CONSUMES
+ gEfiSecurityPkgTokenSpaceGuid.PcdTpmPlatformClass ## SOMETIMES_CONSUMES
[Depex]
gEfiAcpiTableProtocolGuid AND