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| author | Len Brown <len.brown@intel.com> | 2016-03-11 19:26:03 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2016-03-13 08:55:42 +0100 |
| commit | aa8d8cc79af16e16da04efff1c1a72b1ea4a9e7e (patch) | |
| tree | 50e86653357cc2e3e48001ac2760e2a50715c0f0 /tools | |
| parent | tools/power turbostat: detect and work around syscall jitter (diff) | |
| download | linux-aa8d8cc79af16e16da04efff1c1a72b1ea4a9e7e.tar.xz linux-aa8d8cc79af16e16da04efff1c1a72b1ea4a9e7e.zip | |
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>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 43a6dda434ef..db9c9d100042 100644 --- 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; |