diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 6689089cd2..3a55fb33a8 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -553,6 +553,7 @@ static uint32_t get_elf_hwcap(void)
     GET_FEATURE(ARM_FEATURE_V8_SHA512, ARM_HWCAP_A64_SHA512);
     GET_FEATURE(ARM_FEATURE_V8_FP16,
                 ARM_HWCAP_A64_FPHP | ARM_HWCAP_A64_ASIMDHP);
+    GET_FEATURE(ARM_FEATURE_V8_RDM, ARM_HWCAP_A64_ASIMDRDM);
 #undef GET_FEATURE
 
     return hwcaps;
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 72b5668377..c4d6992f1d 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -1433,6 +1433,7 @@ enum arm_features {
     ARM_FEATURE_V8_SHA3, /* implements SHA3 part of v8 Crypto Extensions */
     ARM_FEATURE_V8_SM3, /* implements SM3 part of v8 Crypto Extensions */
     ARM_FEATURE_V8_SM4, /* implements SM4 part of v8 Crypto Extensions */
+    ARM_FEATURE_V8_RDM, /* implements v8.1 simd round multiply */
     ARM_FEATURE_V8_FP16, /* implements v8.2 half-precision float */
 };