diff options
| author | Pratik Prajapati <pratikkumar.v.prajapati@intel.com> | 2017-08-28 12:16:23 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-09-02 15:18:50 +0000 |
| commit | 4e203070523a04f10252a0bb68cb4467b32748fc (patch) | |
| tree | 35933644ca753fbb4fcf10ecd5cc522bcf90d8ef /src | |
| parent | 1f3daeab41826028e8f78afd64a32aab986b406b (diff) | |
| download | coreboot-4e203070523a04f10252a0bb68cb4467b32748fc.tar.xz | |
intel/common/cpulib: Add API to configure MCA
Add mca_configure() API to configure Intel Machine Check
Architecture (MCA).
Change-Id: I5e88c7527ce350824e48892caa978b2b78f1de20
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/21239
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/common/block/cpu/cpulib.c | 18 | ||||
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/cpulib.h | 3 |
2 files changed, 21 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/cpu/cpulib.c b/src/soc/intel/common/block/cpu/cpulib.c index 2272e69edb..0d6dacc628 100644 --- a/src/soc/intel/common/block/cpu/cpulib.c +++ b/src/soc/intel/common/block/cpu/cpulib.c @@ -296,3 +296,21 @@ uint32_t cpu_get_max_turbo_ratio(void) msr = rdmsr(MSR_TURBO_RATIO_LIMIT); return msr.lo & 0xff; } + +void mca_configure(void) +{ + msr_t msr; + int i; + int num_banks; + + msr = rdmsr(IA32_MCG_CAP); + num_banks = msr.lo & 0xff; + msr.lo = msr.hi = 0; + for (i = 0; i < num_banks; i++) { + /* Clear the machine check status */ + wrmsr(IA32_MC0_STATUS + (i * 4), msr); + /* Initialize machine checks */ + wrmsr(IA32_MC0_CTL + i * 4, + (msr_t) {.lo = 0xffffffff, .hi = 0xffffffff}); + } +} diff --git a/src/soc/intel/common/block/include/intelblocks/cpulib.h b/src/soc/intel/common/block/include/intelblocks/cpulib.h index 3d40a920c6..34caf4c252 100644 --- a/src/soc/intel/common/block/include/intelblocks/cpulib.h +++ b/src/soc/intel/common/block/include/intelblocks/cpulib.h @@ -156,4 +156,7 @@ uint32_t cpu_get_power_max(void); */ uint32_t cpu_get_max_turbo_ratio(void); +/* Configure Machine Check Architecture support */ +void mca_configure(void); + #endif /* SOC_INTEL_COMMON_BLOCK_CPULIB_H */ |