diff options
Diffstat (limited to 'arch/x86/cpu/intel_common/cpu.c')
| -rw-r--r-- | arch/x86/cpu/intel_common/cpu.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/cpu/intel_common/cpu.c b/arch/x86/cpu/intel_common/cpu.c index 39aa0f6..a51bf86 100644 --- a/arch/x86/cpu/intel_common/cpu.c +++ b/arch/x86/cpu/intel_common/cpu.c @@ -306,3 +306,22 @@ int cpu_get_cores_per_package(void) return cores; } + +void cpu_mca_configure(void) +{ + msr_t msr; + int i; + int num_banks; + + msr = msr_read(MSR_IA32_MCG_CAP); + num_banks = msr.lo & 0xff; + msr.lo = 0; + msr.hi = 0; + for (i = 0; i < num_banks; i++) { + /* Clear the machine check status */ + msr_write(MSR_IA32_MC0_STATUS + (i * 4), msr); + /* Initialise machine checks */ + msr_write(MSR_IA32_MC0_CTL + i * 4, + (msr_t) {.lo = 0xffffffff, .hi = 0xffffffff}); + } +} |