diff --git a/vcpustat-modify-vcpu-info-acquirement-from-debugfs.patch b/vcpustat-modify-vcpu-info-acquirement-from-debugfs.patch
new file mode 100644
index 0000000..e3790d1
--- /dev/null
+++ b/vcpustat-modify-vcpu-info-acquirement-from-debugfs.patch
@@ -0,0 +1,54 @@
+From 3e17cc136a1cb2a2ae5798448c553b16694ec408 Mon Sep 17 00:00:00 2001
+From: nocjj <1250062498@qq.com>
+Date: Sun, 27 Sep 2020 15:25:41 +0800
+Subject: [PATCH] vcpustat: modify vcpu info acquirement from debugfs
+
+Previous judgement to determine whether the vcpustat info matches the process is:
+strstr(buf, pid) == buf + 1
+But there is an exception that the kvm exit times may contain process pid string.
+And then, we will calculate the delta between two defferent process.
+So, modify this judgement codition.
+---
+ src/vcpu_stat.c | 10 ++++------
+ 1 file changed, 4 insertions(+), 6 deletions(-)
+
+diff --git a/src/vcpu_stat.c b/src/vcpu_stat.c
+index 2076563..7ec2371 100644
+--- a/src/vcpu_stat.c
++++ b/src/vcpu_stat.c
+@@ -15,7 +15,6 @@
+ #include "type.h"
+ #include "vcpu_stat.h"
+ 
+-#define PID_STRING_SIZE 20
+ #define KVM_VCPU_STAT_PATH "/sys/kernel/debug/kvm/vcpu_stat"
+ 
+ struct file_item vcpu_stat_stab[] = {
+@@ -57,12 +56,9 @@ const int vcpu_stat_size = sizeof(vcpu_stat_stab) / sizeof(struct file_item);
+ int get_vcpu_stat(struct domain *dom)
+ {
+     char buf[BUF_SIZE];
+-    char pid[PID_STRING_SIZE];
++    unsigned int pid;
+     FILE *fp = NULL;
+ 
+-    if (snprintf(pid, PID_STRING_SIZE, "%u", dom->pid) < 0) {
+-        return -1;
+-    }
+     fp = fopen(KVM_VCPU_STAT_PATH, "r");
+     if (!fp) {
+         return -1;
+@@ -72,7 +68,9 @@ int get_vcpu_stat(struct domain *dom)
+         char *p_next = NULL;
+         int i = 0;
+ 
+-        if (strstr(buf, pid) == NULL) {
++        /* judge whether vcpu pid is match */
++        sscanf(buf, "%u", &pid);
++        if (pid != dom->pid) {
+             continue;
+         }
+         for (p = strtok_r(buf, " \t\r\n", &p_next); p && i < vcpu_stat_size;
+-- 
+2.23.0
+