From c03aa5026ac561f3b50b4b24903ee2d0bac8520e Mon Sep 17 00:00:00 2001
From: "lijindong (C)" <2220386943@qq.com>
Date: Fri, 12 Sep 2025 12:45:51 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E9=83=A8=E5=88=86=E7=8E=AF?=
 =?UTF-8?q?=E5=A2=83=E8=83=BD=E8=8E=B7=E5=8F=96=E5=88=B0=E6=9C=AA=E6=94=AF?=
 =?UTF-8?q?=E6=8C=81=E7=9A=84=E4=BA=8B=E4=BB=B6?=
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---
 pmu/pmu_event_list.cpp | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/pmu/pmu_event_list.cpp b/pmu/pmu_event_list.cpp
index a1577cc..f5c7cb9 100644
--- a/pmu/pmu_event_list.cpp
+++ b/pmu/pmu_event_list.cpp
@@ -100,6 +100,24 @@ static void GetTraceSubFolder(const std::string& traceFolder, const string& devN
     closedir(dir);
 }
 
+static bool PerfEventSupported(__u64 type, __u64 config)
+{
+    perf_event_attr attr{};
+    memset(&attr, 0, sizeof(attr));
+    attr.size = sizeof(struct perf_event_attr);
+    attr.type = type;
+    attr.config = config;
+    attr.disabled = 1;
+    attr.inherit = 1;
+    attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING | PERF_FORMAT_ID;
+    int fd = KUNPENG_PMU::PerfEventOpen(&attr, -1, 0, -1, 0);
+    if (fd < 0 && errno == ENOENT) {
+        return false;
+    }
+    close(fd);
+    return true;
+}
+
 const char** QueryCoreEvent(unsigned *numEvt)
 {
     if (!coreEventList.empty()) {
@@ -109,6 +127,9 @@ const char** QueryCoreEvent(unsigned *numEvt)
     auto coreEventMap = KUNPENG_PMU::CORE_EVENT_MAP.at(GetCpuType());
     for (auto& pair : coreEventMap) {
         auto eventName = pair.first;
+        if (!PerfEventSupported(pair.second.type, pair.second.config)) {
+            continue;
+        }
         char* eventNameCopy = new char[eventName.length() + 1];
         strcpy(eventNameCopy, eventName.c_str());
         coreEventList.emplace_back(eventNameCopy);
-- 
Gitee