diff --git a/add-riscv-support.patch b/add-riscv-support.patch
new file mode 100644
index 0000000000000000000000000000000000000000..c55fc6f2c6892fef11448ea744920950e5b9d485
--- /dev/null
+++ b/add-riscv-support.patch
@@ -0,0 +1,57 @@
+diff -ur --new-file libmetal-2022.10.0/lib/processor/riscv/CMakeLists.txt libmetal-2022.10.0/lib/processor/riscv/CMakeLists.txt
+--- libmetal-2022.10.0/lib/processor/riscv/CMakeLists.txt	2022-10-28 10:12:23.000000000 +0800
++++ libmetal-2022.10.0/lib/processor/riscv/CMakeLists.txt	1970-01-01 08:00:00.000000000 +0800
+@@ -1,3 +0,0 @@
+-collect (PROJECT_LIB_HEADERS cpu.h)
+-
+-# vim: expandtab:ts=2:sw=2:smartindent
+diff -ur --new-file libmetal-2022.10.0/lib/processor/riscv/cpu.h libmetal-2022.10.0/lib/processor/riscv/cpu.h
+--- libmetal-2022.10.0/lib/processor/riscv/cpu.h	2022-10-28 10:12:23.000000000 +0800
++++ libmetal-2022.10.0/lib/processor/riscv/cpu.h	1970-01-01 08:00:00.000000000 +0800
+@@ -1,17 +0,0 @@
+-/*
+- * Copyright (c) 2018, Pinecone Inc. and Contributors. All rights reserved.
+- *
+- * SPDX-License-Identifier: BSD-3-Clause
+- */
+-
+-/*
+- * @file	cpu.h
+- * @brief	CPU specific primitives
+- */
+-
+-#ifndef __METAL_RISCV_CPU__H__
+-#define __METAL_RISCV_CPU__H__
+-
+-#define metal_cpu_yield()
+-
+-#endif /* __METAL_RISCV_CPU__H__ */
+diff -ur --new-file libmetal-2022.10.0/lib/processor/riscv64/CMakeLists.txt libmetal-2022.10.0/lib/processor/riscv64/CMakeLists.txt
+--- libmetal-2022.10.0/lib/processor/riscv64/CMakeLists.txt	1970-01-01 08:00:00.000000000 +0800
++++ libmetal-2022.10.0/lib/processor/riscv64/CMakeLists.txt	2023-06-20 17:21:21.507556947 +0800
+@@ -0,0 +1,3 @@
++collect (PROJECT_LIB_HEADERS cpu.h)
++
++# vim: expandtab:ts=2:sw=2:smartindent
+diff -ur --new-file libmetal-2022.10.0/lib/processor/riscv64/cpu.h libmetal-2022.10.0/lib/processor/riscv64/cpu.h
+--- libmetal-2022.10.0/lib/processor/riscv64/cpu.h	1970-01-01 08:00:00.000000000 +0800
++++ libmetal-2022.10.0/lib/processor/riscv64/cpu.h	2023-06-20 17:21:21.507556947 +0800
+@@ -0,0 +1,17 @@
++/*
++ * Copyright (c) 2018, Pinecone Inc. and Contributors. All rights reserved.
++ *
++ * SPDX-License-Identifier: BSD-3-Clause
++ */
++
++/*
++ * @file	cpu.h
++ * @brief	CPU specific primitives
++ */
++
++#ifndef __METAL_RISCV_CPU__H__
++#define __METAL_RISCV_CPU__H__
++
++#define metal_cpu_yield()
++
++#endif /* __METAL_RISCV_CPU__H__ */
+
diff --git a/libmetal.spec b/libmetal.spec
index 247c8e398764eb2f97596130c4ee2b219c72a43d..f00d2842e5c982ce71350e6d78f0ed77bc1e17f5 100644
--- a/libmetal.spec
+++ b/libmetal.spec
@@ -1,6 +1,6 @@
 Name:		libmetal
 Version:	2022.10.0
-Release:	3
+Release:	4
 Summary:	An abstraction layer across user-space Linux, baremetal, and RTOS environments
 
 License:	BSD
@@ -8,6 +8,7 @@ URL:		https://github.com/OpenAMP/libmetal/
 Source0:	https://github.com/OpenAMP/libmetal/archive/refs/tags/v%{version}/%{name}-%{version}.tar.gz
 
 Patch0:		libmetal-add-additional-arches.patch
+Patch1:		add-riscv-support.patch
 
 BuildRequires:	cmake
 BuildRequires:	doxygen
@@ -71,6 +72,9 @@ done
 
 
 %changelog
+* Thu Sep 28 2023 Jingwiw  <wangjingwei@iscas.ac.cn> - 2022.10.0-4
+- add riscv support
+
 * Mon Feb 27 2023 hanzongcheng <hanzongcheng@huawei.com> - 2022.10.0-3
 - update to 2022.10.0