diff --git a/target-arm-Fix-some-compile-errors.patch b/target-arm-Fix-some-compile-errors.patch
new file mode 100644
index 0000000..2a0e1e9
--- /dev/null
+++ b/target-arm-Fix-some-compile-errors.patch
@@ -0,0 +1,89 @@
+From 6a5a391c9c6f6c0cd105ce3495acc10868bad884 Mon Sep 17 00:00:00 2001
+From: Dongxu Sun <sundongxu3@huawei.com>
+Date: Tue, 15 Feb 2022 14:40:48 +0800
+Subject: [PATCH] target/arm: Fix some compile errors
+
+fix compile errors like:
+   "implicit declaration of function 'kvm_arm_cpu_feature_supported'";
+   "undefined reference to 'kvm_arm_get_one_reg'"
+   "undefined reference to 'kvm_arm_set_one_reg'"
+   "'kvmval' may be used uninitialized"
+   "'oldval' may be used uninitialized"
+
+Signed-off-by: Dongxu Sun <sundongxu3@huawei.com>
+---
+ target/arm/helper.c  |  4 ++--
+ target/arm/kvm_arm.h | 23 ++++++++++++++++++++---
+ 2 files changed, 22 insertions(+), 5 deletions(-)
+
+diff --git a/target/arm/helper.c b/target/arm/helper.c
+index 1dd5d64d96..80737a8d7b 100644
+--- a/target/arm/helper.c
++++ b/target/arm/helper.c
+@@ -168,8 +168,8 @@ bool write_cpustate_to_list(ARMCPU *cpu, bool kvm_sync)
+         if (kvm_sync) {
+             if (is_id_reg(ri)) {
+                 /* Only sync if we can sync to KVM successfully. */
+-                uint64_t oldval;
+-                uint64_t kvmval;
++                uint64_t oldval = 0;
++                uint64_t kvmval = 0;
+ 
+                 if (kvm_arm_get_one_reg(cpu, cpu->cpreg_indexes[i], &oldval)) {
+                     continue;
+diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h
+index 82145607ec..8b644b3924 100644
+--- a/target/arm/kvm_arm.h
++++ b/target/arm/kvm_arm.h
+@@ -377,6 +377,9 @@ void kvm_arm_pvtime_init(CPUState *cs, uint64_t ipa);
+ 
+ int kvm_arm_set_irq(int cpu, int irqtype, int irq, int level);
+ 
++int kvm_arm_get_one_reg(ARMCPU *cpu, uint64_t regidx, uint64_t *target);
++int kvm_arm_set_one_reg(ARMCPU *cpu, uint64_t regidx, uint64_t *source);
++
+ #else
+ 
+ /*
+@@ -403,6 +406,11 @@ static inline bool kvm_arm_steal_time_supported(void)
+     return false;
+ }
+ 
++static inline bool kvm_arm_cpu_feature_supported(void)
++{
++    return false;
++}
++
+ /*
+  * These functions should never actually be called without KVM support.
+  */
+@@ -451,6 +459,18 @@ static inline void kvm_arm_sve_get_vls(CPUState *cs, unsigned long *map)
+     g_assert_not_reached();
+ }
+ 
++static inline int kvm_arm_get_one_reg(ARMCPU *cpu, uint64_t regidx,
++                                      uint64_t *target)
++{
++    g_assert_not_reached();
++}
++
++static inline int kvm_arm_set_one_reg(ARMCPU *cpu, uint64_t regidx,
++                                      uint64_t *source)
++{
++    g_assert_not_reached();
++}
++
+ #endif
+ 
+ static inline const char *gic_class_name(void)
+@@ -535,7 +555,4 @@ static inline const char *its_class_name(void)
+     }
+ }
+ 
+-int kvm_arm_get_one_reg(ARMCPU *cpu, uint64_t regidx, uint64_t *target);
+-int kvm_arm_set_one_reg(ARMCPU *cpu, uint64_t regidx, uint64_t *source);
+-
+ #endif
+-- 
+2.27.0
+