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-rw-r--r--MdePkg/Include/AArch64/AArch64.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/MdePkg/Include/AArch64/AArch64.h b/MdePkg/Include/AArch64/AArch64.h
index 3186bfb548..ab01d2e54d 100644
--- a/MdePkg/Include/AArch64/AArch64.h
+++ b/MdePkg/Include/AArch64/AArch64.h
@@ -22,7 +22,9 @@
#define CPACR_DEFAULT CPACR_FPEN_FULL
// Coprocessor Trap Register (CPTR)
-#define AARCH64_CPTR_TFP (1 << 10)
+#define AARCH64_CPTR_TFP (1 << 10)
+#define AARCH64_CPTR_RES1 0x33ff
+#define AARCH64_CPTR_DEFAULT AARCH64_CPTR_RES1
// ID_AA64MMFR1 - AArch64 Memory Model Feature Register 0 definitions
#define AARCH64_MMFR1_VH (0xF << 8)