diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi.h b/arch/riscv/include/asm/kvm_vcpu_sbi.h
index 5b37a12337b10..763a931407f3f 100644
--- a/arch/riscv/include/asm/kvm_vcpu_sbi.h
+++ b/arch/riscv/include/asm/kvm_vcpu_sbi.h
@@ -68,6 +68,7 @@ extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental;
 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor;
 #ifdef CONFIG_RISCV_COVE_HOST
 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_covg;
+extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_covh;
 #endif
 
 #endif /* __RISCV_KVM_VCPU_SBI_H__ */
diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
index 2a2434136e394..679a6727a1438 100644
--- a/arch/riscv/include/uapi/asm/kvm.h
+++ b/arch/riscv/include/uapi/asm/kvm.h
@@ -149,6 +149,7 @@ enum KVM_RISCV_SBI_EXT_ID {
 	KVM_RISCV_SBI_EXT_VENDOR,
 	KVM_RISCV_SBI_EXT_DBCN,
 	KVM_RISCV_SBI_EXT_COVG,
+	KVM_RISCV_SBI_EXT_COVH,
 	KVM_RISCV_SBI_EXT_MAX,
 };