diff options
Diffstat (limited to 'target-i386/kvm.c')
| -rw-r--r-- | target-i386/kvm.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index d8a11be57a..7b0ba179cc 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -80,6 +80,7 @@ static int lm_capable_kernel; static bool has_msr_hv_hypercall; static bool has_msr_hv_vapic; static bool has_msr_hv_tsc; +static bool has_msr_hv_crash; static bool has_msr_mtrr; static bool has_msr_xss; @@ -457,7 +458,8 @@ static bool hyperv_enabled(X86CPU *cpu) return kvm_check_extension(cs->kvm_state, KVM_CAP_HYPERV) > 0 && (hyperv_hypercall_available(cpu) || cpu->hyperv_time || - cpu->hyperv_relaxed_timing); + cpu->hyperv_relaxed_timing || + cpu->hyperv_crash); } static Error *invtsc_mig_blocker; @@ -523,6 +525,10 @@ int kvm_arch_init_vcpu(CPUState *cs) c->eax |= 0x200; has_msr_hv_tsc = true; } + if (cpu->hyperv_crash && has_msr_hv_crash) { + c->edx |= HV_X64_GUEST_CRASH_MSR_AVAILABLE; + } + c = &cpuid_data.entries[cpuid_i++]; c->function = HYPERV_CPUID_ENLIGHTMENT_INFO; if (cpu->hyperv_relaxed_timing) { @@ -843,6 +849,10 @@ static int kvm_get_supported_msrs(KVMState *s) has_msr_xss = true; continue; } + if (kvm_msr_list->indices[i] == HV_X64_MSR_CRASH_CTL) { + has_msr_hv_crash = true; + continue; + } } } @@ -1375,6 +1385,16 @@ static int kvm_put_msrs(X86CPU *cpu, int level) kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_REFERENCE_TSC, env->msr_hv_tsc); } + if (has_msr_hv_crash) { + int j; + + for (j = 0; j < HV_X64_MSR_CRASH_PARAMS; j++) + kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_CRASH_P0 + j, + env->msr_hv_crash_params[j]); + + kvm_msr_entry_set(&msrs[n++], HV_X64_MSR_CRASH_CTL, + HV_X64_MSR_CRASH_CTL_NOTIFY); + } if (has_msr_mtrr) { kvm_msr_entry_set(&msrs[n++], MSR_MTRRdefType, env->mtrr_deftype); kvm_msr_entry_set(&msrs[n++], @@ -1730,6 +1750,13 @@ static int kvm_get_msrs(X86CPU *cpu) if (has_msr_hv_tsc) { msrs[n++].index = HV_X64_MSR_REFERENCE_TSC; } + if (has_msr_hv_crash) { + int j; + + for (j = 0; j < HV_X64_MSR_CRASH_PARAMS; j++) { + msrs[n++].index = HV_X64_MSR_CRASH_P0 + j; + } + } if (has_msr_mtrr) { msrs[n++].index = MSR_MTRRdefType; msrs[n++].index = MSR_MTRRfix64K_00000; @@ -1877,6 +1904,9 @@ static int kvm_get_msrs(X86CPU *cpu) case HV_X64_MSR_REFERENCE_TSC: env->msr_hv_tsc = msrs[i].data; break; + case HV_X64_MSR_CRASH_P0 ... HV_X64_MSR_CRASH_P4: + env->msr_hv_crash_params[index - HV_X64_MSR_CRASH_P0] = msrs[i].data; + break; case MSR_MTRRdefType: env->mtrr_deftype = msrs[i].data; break; |