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-rw-r--r--SecurityPkg/Tcg/TcgSmm/TcgSmm.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/SecurityPkg/Tcg/TcgSmm/TcgSmm.c b/SecurityPkg/Tcg/TcgSmm/TcgSmm.c
index 06df822e99..045c1846fc 100644
--- a/SecurityPkg/Tcg/TcgSmm/TcgSmm.c
+++ b/SecurityPkg/Tcg/TcgSmm/TcgSmm.c
@@ -386,6 +386,11 @@ InitializeTcgSmm (
EFI_SMM_SW_REGISTER_CONTEXT SwContext;
EFI_HANDLE SwHandle;
+ if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &gEfiTpmDeviceInstanceTpm12Guid)){
+ DEBUG ((EFI_D_ERROR, "No TPM12 instance required!\n"));
+ return EFI_UNSUPPORTED;
+ }
+
Status = PublishAcpiTable ();
ASSERT_EFI_ERROR (Status);