perf tools: Add Hygon Dhyana support

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 <[email protected]>
Acked-by: Borislav Petkov <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: Pu Wen

tools/perf/arch/x86/util/kvm-stat.c

@@ -156,7 +156,7 @@ 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