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Diffstat (limited to 'usr/src/uts/intel/os/cpuid.c')
-rw-r--r--usr/src/uts/intel/os/cpuid.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/usr/src/uts/intel/os/cpuid.c b/usr/src/uts/intel/os/cpuid.c
index 5e564b7acf..1459c034b9 100644
--- a/usr/src/uts/intel/os/cpuid.c
+++ b/usr/src/uts/intel/os/cpuid.c
@@ -5585,6 +5585,12 @@ cpuid_pass_resolve(cpu_t *cpu, void *arg)
hwcap_flags |= AV_386_TSC;
}
+ /* Detect systems with a potential CPUID limit */
+ if (cpi->cpi_vendor == X86_VENDOR_Intel && cpi->cpi_maxeax < 4) {
+ cmn_err(CE_NOTE, "CPUID limit detected, "
+ "see the CPUID(7D) man page for details\n");
+ }
+
/*
* Check a few miscellaneous features.
*/