void helper_rdmsr(void) { uint64_t val; helper_svm_check_intercept_param(SVM_EXIT_MSR, 0); switch((uint32_t)ECX) { case MSR_IA32_SYSENTER_CS: val = env->sysenter_cs; break; case MSR_IA32_SYSENTER_ESP: val = env->sysenter_esp; break; case MSR_IA32_SYSENTER_EIP: val = env->sysenter_eip; break; case MSR_IA32_APICBASE: val = cpu_get_apic_base(env); break; case MSR_EFER: val = env->efer; break; case MSR_STAR: val = env->star; break; case MSR_PAT: val = env->pat; break; case MSR_VM_HSAVE_PA: val = env->vm_hsave; break; case MSR_IA32_PERF_STATUS: /* tsc_increment_by_tick */ val = 1000ULL; /* CPU multiplier */ val |= (((uint64_t)4ULL) << 40); break; #ifdef TARGET_X86_64 case MSR_LSTAR: val = env->lstar; break; case MSR_CSTAR: val = env->cstar; break; case MSR_FMASK: val = env->fmask; break; case MSR_FSBASE: val = env->segs[R_FS].base; break; case MSR_GSBASE: val = env->segs[R_GS].base; break; case MSR_KERNELGSBASE: val = env->kernelgsbase; break; #endif #ifdef CONFIG_KQEMU case MSR_QPI_COMMBASE: if (env->kqemu_enabled) { val = kqemu_comm_base; } else { val = 0; } break; #endif case MSR_MTRRphysBase(0): case MSR_MTRRphysBase(1): case MSR_MTRRphysBase(2): case MSR_MTRRphysBase(3): case MSR_MTRRphysBase(4): case MSR_MTRRphysBase(5): case MSR_MTRRphysBase(6): case MSR_MTRRphysBase(7): val = env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysBase(0)) / 2].base; break; case MSR_MTRRphysMask(0): case MSR_MTRRphysMask(1): case MSR_MTRRphysMask(2): case MSR_MTRRphysMask(3): case MSR_MTRRphysMask(4): case MSR_MTRRphysMask(5): case MSR_MTRRphysMask(6): case MSR_MTRRphysMask(7): val = env->mtrr_var[((uint32_t)ECX - MSR_MTRRphysMask(0)) / 2].mask; break; case MSR_MTRRfix64K_00000: val = env->mtrr_fixed[0]; break; case MSR_MTRRfix16K_80000: case MSR_MTRRfix16K_A0000: val = env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix16K_80000 + 1]; break; case MSR_MTRRfix4K_C0000: case MSR_MTRRfix4K_C8000: case MSR_MTRRfix4K_D0000: case MSR_MTRRfix4K_D8000: case MSR_MTRRfix4K_E0000: case MSR_MTRRfix4K_E8000: case MSR_MTRRfix4K_F0000: case MSR_MTRRfix4K_F8000: val = env->mtrr_fixed[(uint32_t)ECX - MSR_MTRRfix4K_C0000 + 3]; break; case MSR_MTRRdefType: val = env->mtrr_deftype; break; case MSR_MTRRcap: if (env->cpuid_features & CPUID_MTRR) val = MSR_MTRRcap_VCNT | MSR_MTRRcap_FIXRANGE_SUPPORT | MSR_MTRRcap_WC_SUPPORTED; else /* 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; } EAX = (uint32_t)(val); EDX = (uint32_t)(val >> 32); }