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-rw-r--r--sys/i386/include/specialreg.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/i386/include/specialreg.h b/sys/i386/include/specialreg.h
index 73e7a8454bed..2cd1f8f496d3 100644
--- a/sys/i386/include/specialreg.h
+++ b/sys/i386/include/specialreg.h
@@ -195,6 +195,12 @@
#define CPUID_HTT_CORES 0x00ff0000
#define CPUID_LOCAL_APIC_ID 0xff000000
+/*
+ * CPUID instruction 6 ecx info
+ */
+#define CPUID_PERF_STAT 0x00000001
+#define CPUID_PERF_BIAS 0x00000008
+
/*
* CPUID instruction 0xb ebx info.
*/