From 70f302588ea43cabc812531b8646173ebd5b100d Mon Sep 17 00:00:00 2001
From: doublefree <yupan14@huawei.com>
Date: Fri, 1 Aug 2025 17:07:26 +0800
Subject: [PATCH] =?UTF-8?q?pmuv3=E5=A2=9E=E5=8A=A0=E5=86=85=E6=A0=B8?=
 =?UTF-8?q?=E7=89=88=E6=9C=AC=E9=99=90=E5=88=B6?=
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---
 pmu/perf_counter.cpp | 3 +++
 pmu/pmu.cpp          | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/pmu/perf_counter.cpp b/pmu/perf_counter.cpp
index 3ad6339..9cf08f5 100644
--- a/pmu/perf_counter.cpp
+++ b/pmu/perf_counter.cpp
@@ -22,6 +22,7 @@
 #include <sys/mman.h>
 #include <iostream>
 #include <linux/perf_event.h>
+#include <linux/version.h>
 #include "pmu.h"
 #include "linked_list.h"
 #include "pfm_event.h"
@@ -73,6 +74,7 @@ int KUNPENG_PMU::PerfCounter::Read(EventData &eventData)
 namespace KUNPENG_PMU {
 static int PerfMmapReadSelf(const std::shared_ptr<PerfMmap> &countMmap, struct ReadFormat &perfCountValue)
 {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0)
     uint32_t seq;
     uint32_t idx;
     uint32_t timeMult = 0;
@@ -134,6 +136,7 @@ static int PerfMmapReadSelf(const std::shared_ptr<PerfMmap> &countMmap, struct R
         }
     }
     perfCountValue.value = cnt;
+#endif
     return SUCCESS;
 }
 }  // namespace KUNPENG_PMU
diff --git a/pmu/pmu.cpp b/pmu/pmu.cpp
index 715db52..4ec1714 100644
--- a/pmu/pmu.cpp
+++ b/pmu/pmu.cpp
@@ -17,6 +17,7 @@
 #include <fstream>
 #include <unistd.h>
 #include <linux/perf_event.h>
+#include <linux/version.h>
 #include <cstring>
 #include "common.h"
 #include "pfm.h"
@@ -269,6 +270,10 @@ static int CheckUserAccess(enum PmuTaskType collectType, struct PmuAttr *attr)
     if (!attr->enableUserAccess) {
         return SUCCESS;
     }
+    if (LINUX_VERSION_CODE < KERNEL_VERSION(6, 6, 0)) {
+        New(LIBPERF_ERR_CHECK_USER_ACCESS, "Pmuv3 is supported after linux-kernel-v6.6");
+        return LIBPERF_ERR_CHECK_USER_ACCESS;
+    }
     if (attr->numPid != 1 || attr->pidList[0] != 0) {
         New(LIBPERF_ERR_CHECK_USER_ACCESS, "The pidList is incorrectly set!");
         return LIBPERF_ERR_CHECK_USER_ACCESS;
-- 
Gitee