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-rw-r--r--target/riscv/cpu_bits.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h
index 4196ef8b69..caf4599207 100644
--- a/target/riscv/cpu_bits.h
+++ b/target/riscv/cpu_bits.h
@@ -368,6 +368,7 @@
 #define MSTATUS_MIE         0x00000008
 #define MSTATUS_UPIE        0x00000010
 #define MSTATUS_SPIE        0x00000020
+#define MSTATUS_UBE         0x00000040
 #define MSTATUS_MPIE        0x00000080
 #define MSTATUS_SPP         0x00000100
 #define MSTATUS_MPP         0x00001800