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-rw-r--r--src/include/cpu/x86/msr.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/cpu/x86/msr.h b/src/include/cpu/x86/msr.h
index 5c6cae3a0e..8c558ce8ac 100644
--- a/src/include/cpu/x86/msr.h
+++ b/src/include/cpu/x86/msr.h
@@ -37,6 +37,8 @@
#define IA32_PERF_CTL 0x199
#define IA32_THERM_INTERRUPT 0x19b
#define IA32_MISC_ENABLE 0x1a0
+#define FAST_STRINGS_ENABLE_BIT (1 << 0)
+#define SPEED_STEP_ENABLE_BIT (1 << 16)
#define IA32_ENERGY_PERF_BIAS 0x1b0
#define ENERGY_POLICY_PERFORMANCE 0
#define ENERGY_POLICY_NORMAL 6