[PATCH 4.9 018/137] perf tools: Add Hygon Dhyana support

From: Greg Kroah-Hartman
Date: Mon Feb 11 2019 - 10:06:41 EST

4.9-stable review patch. If anyone has any objections, please let me know.


[ Upstream commit 4787eff3fa88f62fede6ed7afa06477ae6bf984d ]

The tool perf is useful for the performance analysis on the Hygon Dhyana
platform. But right now there is no Hygon support for it to analyze the
KVM guest os data. So add Hygon Dhyana support to it by checking vendor
string to share the code path of AMD.

Signed-off-by: Pu Wen <puwen@xxxxxxxx>
Acked-by: Borislav Petkov <bp@xxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1542008451-31735-1-git-send-email-puwen@xxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
tools/perf/arch/x86/util/kvm-stat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/arch/x86/util/kvm-stat.c b/tools/perf/arch/x86/util/kvm-stat.c
index b63d4be655a2..2020e12a856f 100644
--- a/tools/perf/arch/x86/util/kvm-stat.c
+++ b/tools/perf/arch/x86/util/kvm-stat.c
@@ -154,7 +154,7 @@ int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid)
if (strstr(cpuid, "Intel")) {
kvm->exit_reasons = vmx_exit_reasons;
kvm->exit_reasons_isa = "VMX";
- } else if (strstr(cpuid, "AMD")) {
+ } else if (strstr(cpuid, "AMD") || strstr(cpuid, "Hygon")) {
kvm->exit_reasons = svm_exit_reasons;
kvm->exit_reasons_isa = "SVM";
} else