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tools/power turbostat: Print ucode revision only if valid

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[ Upstream commit fb5ceca046 ]

If the MSR read were to fail, turbostat would print "microcode 0x0"

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Patryk Wlazlyn
2024-01-12 13:48:14 +01:00
committed by Greg Kroah-Hartman
parent fdfd3e3072
commit 8eaefb463e
1 changed files with 9 additions and 3 deletions
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12
tools/power/x86/turbostat/turbostat.c
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@@ -5679,6 +5679,7 @@ void process_cpuid()
unsigned int eax, ebx, ecx, edx;
unsigned int fms, family, model, stepping, ecx_flags, edx_flags;
unsigned long long ucode_patch = 0;
bool ucode_patch_valid = false;
eax = ebx = ecx = edx = 0;
@@ -5708,6 +5709,8 @@ void process_cpuid()
if (get_msr(sched_getcpu(), MSR_IA32_UCODE_REV, &ucode_patch))
warnx("get_msr(UCODE)");
else
ucode_patch_valid = true;
/*
* check max extended function levels of CPUID.
@@ -5718,9 +5721,12 @@ void process_cpuid()
__cpuid(0x80000000, max_extended_level, ebx, ecx, edx);
if (!quiet) {
fprintf(outf, "CPUID(1): family:model:stepping 0x%x:%x:%x (%d:%d:%d) microcode 0x%x\n",
family, model, stepping, family, model, stepping,
(unsigned int)((ucode_patch >> 32) & 0xFFFFFFFF));
fprintf(outf, "CPUID(1): family:model:stepping 0x%x:%x:%x (%d:%d:%d)",
family, model, stepping, family, model, stepping);
if (ucode_patch_valid)
fprintf(outf, " microcode 0x%x", (unsigned int)((ucode_patch >> 32) & 0xFFFFFFFF));
fputc('\n', outf);
fprintf(outf, "CPUID(0x80000000): max_extended_levels: 0x%x\n", max_extended_level);
fprintf(outf, "CPUID(1): %s %s %s %s %s %s %s %s %s %s\n",
ecx_flags & (1 << 0) ? "SSE3" : "-",