diff options
Diffstat (limited to 'src/soc/intel/denverton_ns/cpu.c')
| -rw-r--r-- | src/soc/intel/denverton_ns/cpu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/soc/intel/denverton_ns/cpu.c b/src/soc/intel/denverton_ns/cpu.c index e99641330a..036a47a42b 100644 --- a/src/soc/intel/denverton_ns/cpu.c +++ b/src/soc/intel/denverton_ns/cpu.c @@ -74,6 +74,13 @@ static void denverton_core_init(struct device *cpu) msr.lo |= FAST_STRINGS_ENABLE_BIT; wrmsr(IA32_MISC_ENABLE, msr); + /* Lock AES-NI only if supported */ + if (cpuid_ecx(1) & (1 << 25)) { + msr = rdmsr(MSR_FEATURE_CONFIG); + msr.lo |= FEATURE_CONFIG_LOCK; /* Lock AES-NI */ + wrmsr(MSR_FEATURE_CONFIG, msr); + } + /* Enable Turbo */ enable_turbo(); |