tools/power turbostat: indicate SMX and SGX support

SGX presence is related to a SKL power workaround,
so lets show when that is enabled.

Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 43a6dda..db9c9d1 100644 (file)
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -3052,6 +3052,17 @@ guess:
        return 0;
 }
 
+void decode_feature_control_msr(void)
+{
+       unsigned long long msr;
+
+       if (!get_msr(base_cpu, MSR_IA32_FEATURE_CONTROL, &msr))
+               fprintf(outf, "cpu%d: MSR_IA32_FEATURE_CONTROL: 0x%08llx (%sLocked %s)\n",
+                       base_cpu, msr,
+                       msr & FEATURE_CONTROL_LOCKED ? "" : "UN-",
+                       msr & (1 << 18) ? "SGX" : "");
+}
+
 void decode_misc_enable_msr(void)
 {
        unsigned long long msr;
@@ -3111,9 +3122,10 @@ void process_cpuid()
        if (debug) {
                fprintf(outf, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
                        max_level, family, model, stepping, family, model, stepping);
-               fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s\n",
+               fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s %s\n",
                        ecx & (1 << 0) ? "SSE3" : "-",
                        ecx & (1 << 3) ? "MONITOR" : "-",
+                       ecx & (1 << 6) ? "SMX" : "-",
                        ecx & (1 << 7) ? "EIST" : "-",
                        ecx & (1 << 8) ? "TM2" : "-",
                        edx & (1 << 4) ? "TSC" : "-",
@@ -3175,6 +3187,20 @@ void process_cpuid()
        if (debug)
                decode_misc_enable_msr();
 
+       if (max_level >= 0x7) {
+               int has_sgx;
+
+               ecx = 0;
+
+               __cpuid_count(0x7, 0, eax, ebx, ecx, edx);
+
+               has_sgx = ebx & (1 << 2);
+               fprintf(outf, "CPUID(7): %sSGX\n", has_sgx ? "" : "No-");
+
+               if (has_sgx)
+                       decode_feature_control_msr();
+       }
+
        if (max_level >= 0x15) {
                unsigned int eax_crystal;
                unsigned int ebx_tsc;