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-rw-r--r--ArmPkg/Include/IndustryStandard/ArmTrustZoneSmc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/ArmPkg/Include/IndustryStandard/ArmTrustZoneSmc.h b/ArmPkg/Include/IndustryStandard/ArmTrustZoneSmc.h
index 62f8f61a7e..71b4327ebf 100644
--- a/ArmPkg/Include/IndustryStandard/ArmTrustZoneSmc.h
+++ b/ArmPkg/Include/IndustryStandard/ArmTrustZoneSmc.h
@@ -18,6 +18,8 @@
#define ARM_TRUSTZONE_UID_4LETTERID 0x1
#define ARM_TRUSTZONE_UID_MD5 0x2
+#define ARM_TRUSTZONE_ARM_UID 0x40524d48 // "ARMH"
+
#define IS_ARM_TRUSTZONE_SUPPORTED_SMC(Rx,Region) (((UINTN)(Rx) >= (UINTN)ARM_TRUSTZONE_##Region##_SMC_ID_START) && ((UINTN)(Rx) <= (UINTN)ARM_TRUSTZONE_##Region##_SMC_ID_END))
#define IS_ARM_TRUSTZONE_DEPRECIATED_SMC(Rx) ((UINTN)(Rx) <= (UINTN)ARM_TRUSTZONE_DEPRECIATED_SMC_ID_END)