diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/intel/haswell/haswell_init.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cpu/intel/haswell/haswell_init.c b/src/cpu/intel/haswell/haswell_init.c index 2c6384c4e3..90db95b8df 100644 --- a/src/cpu/intel/haswell/haswell_init.c +++ b/src/cpu/intel/haswell/haswell_init.c @@ -395,6 +395,7 @@ static void configure_c_states(void) msr.lo |= (1 << 27); // C3 Auto Undemotion Enable msr.lo |= (1 << 26); // C1 Auto Demotion Enable msr.lo |= (1 << 25); // C3 Auto Demotion Enable + msr.lo |= (1 << 15); // Lock bits 15:0 msr.lo &= ~(1 << 10); // Disable IO MWAIT redirection if (timed_mwait_capable) |