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>

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index a209c5d87ff7520f9c1659c36b6c73cff32bc8c7..0ef36f0330a95f7dbfaa4980618fcd71665b9200 100644 (file)
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -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