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tools/power turbostat: Dump CPUID.1.ECX[31] (Hypervisor)

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Both Intel and AMD use CPUID.1.ECX[31] to distinguish
between hypervisor and real hardware.
Indicate "HV" or "No-HV" accordingly.

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown
2025-12-05 11:38:27 -05:00
parent bd1b6608d7
commit 00b9e2a7fa
1 changed files with 5 additions and 2 deletions
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7
tools/power/x86/turbostat/turbostat.c
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@@ -498,6 +498,7 @@ unsigned int list_header_only;
unsigned int dump_only;
unsigned int force_load;
unsigned int cpuid_has_aperf_mperf;
unsigned int cpuid_has_hv;
unsigned int has_aperf_access;
unsigned int has_epb;
unsigned int has_turbo;
@@ -8803,6 +8804,7 @@ void process_cpuid()
model += ((fms >> 16) & 0xf) << 4;
ecx_flags = ecx;
edx_flags = edx;
cpuid_has_hv = ecx_flags & (1 << 31);
if (!no_msr) {
if (get_msr(sched_getcpu(), MSR_IA32_UCODE_REV, &ucode_patch))
@@ -8826,12 +8828,13 @@ void process_cpuid()
fputc('\n', outf);
fprintf(outf, "CPUID(0x80000000): max_extended_levels: 0x%x\n", max_extended_level);
fprintf(outf, "CPUID(1): %sSSE3 %sMONITOR %sSMX %sEIST %sTM2 %sTSC %sMSR %sACPI-TM %sHT %sTM\n",
fprintf(outf, "CPUID(1): %sSSE3 %sMONITOR %sSMX %sEIST %sTM2 %sHV %sTSC %sMSR %sACPI-TM %sHT %sTM\n",
ecx_flags & (1 << 0) ? "" : "No-",
ecx_flags & (1 << 3) ? "" : "No-",
ecx_flags & (1 << 6) ? "" : "No-",
ecx_flags & (1 << 7) ? "" : "No-",
ecx_flags & (1 << 8) ? "" : "No-",
cpuid_has_hv ? "" : "No-",
edx_flags & (1 << 4) ? "" : "No-",
edx_flags & (1 << 5) ? "" : "No-",
edx_flags & (1 << 22) ? "" : "No-", edx_flags & (1 << 28) ? "" : "No-", edx_flags & (1 << 29) ? "" : "No-");
@@ -10145,7 +10148,7 @@ int get_and_dump_counters(void)
void print_version()
{
fprintf(outf, "turbostat version 2025.12.02 - Len Brown <lenb@kernel.org>\n");
fprintf(outf, "turbostat version 2025.12.05 - Len Brown <lenb@kernel.org>\n");
}
#define COMMAND_LINE_SIZE 2048