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Index: sys/x86/include/specialreg.h
===================================================================
--- sys/x86/include/specialreg.h
+++ sys/x86/include/specialreg.h
@@ -345,6 +345,13 @@
/* Ecx. */
#define CPUID_PERF_STAT 0x00000001
#define CPUID_PERF_BIAS 0x00000008
+#define CPUID_PERF_TD_CLASSES 0x0000ff00
+
+/* Edx. */
+#define CPUID_HF_PERFORMANCE 0x00000001
+#define CPUID_HF_EFFICIENCY 0x00000002
+#define CPUID_TD_CAPABLITIES 0x0000000f
+#define CPUID_TD_TBLPAGES 0x00000f00
/*
* CPUID instruction 0xb ebx info.
@@ -583,6 +590,8 @@
#define MSR_TURBO_RATIO_LIMIT 0x1ad
#define MSR_TURBO_RATIO_LIMIT1 0x1ae
#define MSR_IA32_ENERGY_PERF_BIAS 0x1b0
+#define MSR_IA32_PKG_THERM_STATUS 0x1b1
+#define MSR_IA32_PKG_THERM_INTERRUPT 0x1b2
#define MSR_DEBUGCTLMSR 0x1d9
#define MSR_LASTBRANCHFROMIP 0x1db
#define MSR_LASTBRANCHTOIP 0x1dc
@@ -766,6 +775,14 @@
#define TOPA_INT (1 << 2)
#define TOPA_END (1 << 0)
+/*
+ * Intel Hardware Feedback Interface / Thread Director MSRs
+ */
+#define MSR_IA32_HW_FEEDBACK_PTR 0x17d0
+#define MSR_IA32_HW_FEEDBACK_CONFIG 0x17d1
+#define MSR_IA32_THREAD_FEEDBACK_CHAR 0x17d2
+#define MSR_IA32_HW_FEEDBACK_THREAD_CONFIG 0x17d4
+
/*
* Constants related to MSR's.
*/
@@ -836,6 +853,19 @@
/* MSR IA32_ENERGY_PERF_BIAS */
#define IA32_ENERGY_PERF_BIAS_POLICY_HINT_MASK (0xfULL << 0)
+/* MSR IA32_HW_FEEDBACK_PTR */
+#define IA32_HW_FEEDBACK_PTR_ENABLE (0x1ULL << 0)
+
+/* MSR IA32_HW_FEEDBACK_CONFIG */
+#define IA32_HW_FEEDBACK_CONFIG_EN_HFI (0x1ULL << 0)
+#define IA32_HW_FEEDBACK_CONFIG_EN_THDIR (0x1ULL << 1)
+
+/* MSR IA32_PKG_THERM_STATUS */
+#define IA32_PKG_THERM_STATUS_HFI_UPDATED (0x1ULL << 26)
+
+/* MSR IA32_PKG_THERM_INTERRUPT */
+#define IA32_PKG_THERM_INTERRUPT_HFI_ENABLE (0x1ULL << 25)
+
/*
* PAT modes.
*/

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