Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
tools/power turbostat: Dump CPUID.1.ECX[31] (Hypervisor)
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>
+5
-2
+5
-2
tools/power/x86/turbostat/turbostat.c
+5
-2
tools/power/x86/turbostat/turbostat.c
···
498
498
unsigned int dump_only;
499
499
unsigned int force_load;
500
500
unsigned int cpuid_has_aperf_mperf;
501
+
unsigned int cpuid_has_hv;
501
502
unsigned int has_aperf_access;
502
503
unsigned int has_epb;
503
504
unsigned int has_turbo;
···
8804
8803
model += ((fms >> 16) & 0xf) << 4;
8805
8804
ecx_flags = ecx;
8806
8805
edx_flags = edx;
8806
+
cpuid_has_hv = ecx_flags & (1 << 31);
8807
8807
8808
8808
if (!no_msr) {
8809
8809
if (get_msr(sched_getcpu(), MSR_IA32_UCODE_REV, &ucode_patch))
···
8828
8826
fputc('\n', outf);
8829
8827
8830
8828
fprintf(outf, "CPUID(0x80000000): max_extended_levels: 0x%x\n", max_extended_level);
8831
-
fprintf(outf, "CPUID(1): %sSSE3 %sMONITOR %sSMX %sEIST %sTM2 %sTSC %sMSR %sACPI-TM %sHT %sTM\n",
8829
+
fprintf(outf, "CPUID(1): %sSSE3 %sMONITOR %sSMX %sEIST %sTM2 %sHV %sTSC %sMSR %sACPI-TM %sHT %sTM\n",
8832
8830
ecx_flags & (1 << 0) ? "" : "No-",
8833
8831
ecx_flags & (1 << 3) ? "" : "No-",
8834
8832
ecx_flags & (1 << 6) ? "" : "No-",
8835
8833
ecx_flags & (1 << 7) ? "" : "No-",
8836
8834
ecx_flags & (1 << 8) ? "" : "No-",
8835
+
cpuid_has_hv ? "" : "No-",
8837
8836
edx_flags & (1 << 4) ? "" : "No-",
8838
8837
edx_flags & (1 << 5) ? "" : "No-",
8839
8838
edx_flags & (1 << 22) ? "" : "No-", edx_flags & (1 << 28) ? "" : "No-", edx_flags & (1 << 29) ? "" : "No-");
···
10148
10145
10149
10146
void print_version()
10150
10147
{
10151
-
fprintf(outf, "turbostat version 2025.12.02 - Len Brown <lenb@kernel.org>\n");
10148
+
fprintf(outf, "turbostat version 2025.12.05 - Len Brown <lenb@kernel.org>\n");
10152
10149
}
10153
10150
10154
10151
#define COMMAND_LINE_SIZE 2048