diff options
Diffstat (limited to 'target-i386/op_helper.c')
| -rw-r--r-- | target-i386/op_helper.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/target-i386/op_helper.c b/target-i386/op_helper.c index bd1769c528..ed22c7a650 100644 --- a/target-i386/op_helper.c +++ b/target-i386/op_helper.c @@ -3133,7 +3133,23 @@ void helper_wrmsr(void) case MSR_MTRRdefType: env->mtrr_deftype = val; break; + case MSR_MCG_STATUS: + env->mcg_status = val; + break; + case MSR_MCG_CTL: + if ((env->mcg_cap & MCG_CTL_P) + && (val == 0 || val == ~(uint64_t)0)) + env->mcg_ctl = val; + break; default: + if ((uint32_t)ECX >= MSR_MC0_CTL + && (uint32_t)ECX < MSR_MC0_CTL + (4 * env->mcg_cap & 0xff)) { + uint32_t offset = (uint32_t)ECX - MSR_MC0_CTL; + if ((offset & 0x3) != 0 + || (val == 0 || val == ~(uint64_t)0)) + env->mce_banks[offset] = val; + break; + } /* XXX: exception ? */ break; } @@ -3252,7 +3268,25 @@ void helper_rdmsr(void) /* XXX: exception ? */ val = 0; break; + case MSR_MCG_CAP: + val = env->mcg_cap; + break; + case MSR_MCG_CTL: + if (env->mcg_cap & MCG_CTL_P) + val = env->mcg_ctl; + else + val = 0; + break; + case MSR_MCG_STATUS: + val = env->mcg_status; + break; default: + if ((uint32_t)ECX >= MSR_MC0_CTL + && (uint32_t)ECX < MSR_MC0_CTL + (4 * env->mcg_cap & 0xff)) { + uint32_t offset = (uint32_t)ECX - MSR_MC0_CTL; + val = env->mce_banks[offset]; + break; + } /* XXX: exception ? */ val = 0; break; |