diff options
Diffstat (limited to 'arch/x86/cpu/cpu.c')
| -rw-r--r-- | arch/x86/cpu/cpu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index 30e5069..ed7905c 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -223,6 +223,11 @@ static bool has_cpuid(void) return flag_is_changeable_p(X86_EFLAGS_ID); } +static bool has_mtrr(void) +{ + return cpuid_edx(0x00000001) & (1 << 12) ? true : false; +} + static int build_vendor_name(char *vendor_name) { struct cpuid_result result; @@ -318,6 +323,8 @@ int x86_cpu_init_f(void) gd->arch.x86_model = c.x86_model; gd->arch.x86_mask = c.x86_mask; gd->arch.x86_device = cpu.device; + + gd->arch.has_mtrr = has_mtrr(); } return 0; |