MSR_IA32_MISC_ENABLE_BTS_UNAVAIL
if (!(l1 & MSR_IA32_MISC_ENABLE_BTS_UNAVAIL))
MSR_IA32_MISC_ENABLE_BTS_UNAVAIL)
MSR_IA32_MISC_ENABLE_BTS_UNAVAIL;
#define MISC_ENABLES_RESET_VAL (MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL | MSR_IA32_MISC_ENABLE_BTS_UNAVAIL)