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-rw-r--r--ArmPkg/Include/Chipset/AArch64.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/ArmPkg/Include/Chipset/AArch64.h b/ArmPkg/Include/Chipset/AArch64.h
index bfd2859..690433f 100644
--- a/ArmPkg/Include/Chipset/AArch64.h
+++ b/ArmPkg/Include/Chipset/AArch64.h
@@ -112,6 +112,10 @@
#define ARM_VECTOR_LOW_A32_FIQ 0x700
#define ARM_VECTOR_LOW_A32_SERR 0x780
+// The ID_AA64ISAR2_EL1 register is not recognized by older
+// assemblers, we need to define it here.
+#define ID_AA64ISAR2_EL1 S3_0_C0_C6_2
+
// The ID_AA64MMFR2_EL1 register was added in ARMv8.2. Since we
// build for ARMv8.0, we need to define the register here.
#define ID_AA64MMFR2_EL1 S3_0_C0_C7_2