diff options
| -rw-r--r-- | target/i386/cpu.h | 1 | ||||
| -rw-r--r-- | target/i386/kvm/kvm.c | 80 |
2 files changed, 43 insertions, 38 deletions
diff --git a/target/i386/cpu.h b/target/i386/cpu.h index da72aa5..681f116 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1699,6 +1699,7 @@ struct X86CPU { uint32_t hyperv_interface_id[4]; uint32_t hyperv_version_id[4]; uint32_t hyperv_limits[3]; + uint32_t hyperv_nested[4]; bool check_cpuid; bool enforce_cpuid; diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 4cd4df2..346528c 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1112,7 +1112,6 @@ static int hv_cpuid_check_and_set(CPUState *cs, struct kvm_cpuid2 *cpuid, int feature) { X86CPU *cpu = X86_CPU(cs); - CPUX86State *env = &cpu->env; uint32_t r, fw, bits; uint64_t deps; int i, dep_feat; @@ -1152,8 +1151,6 @@ static int hv_cpuid_check_and_set(CPUState *cs, struct kvm_cpuid2 *cpuid, return 0; } } - - env->features[fw] |= bits; } if (cpu->hyperv_passthrough) { @@ -1163,6 +1160,29 @@ static int hv_cpuid_check_and_set(CPUState *cs, struct kvm_cpuid2 *cpuid, return 0; } +static uint32_t hv_build_cpuid_leaf(CPUState *cs, uint32_t fw) +{ + X86CPU *cpu = X86_CPU(cs); + uint32_t r = 0; + int i, j; + + for (i = 0; i < ARRAY_SIZE(kvm_hyperv_properties); i++) { + if (!hyperv_feat_enabled(cpu, i)) { + continue; + } + + for (j = 0; j < ARRAY_SIZE(kvm_hyperv_properties[i].flags); j++) { + if (kvm_hyperv_properties[i].flags[j].fw != fw) { + continue; + } + + r |= kvm_hyperv_properties[i].flags[j].bits; + } + } + + return r; +} + /* * Fill in Hyper-V CPUIDs. Returns the number of entries filled in cpuid_ent in * case of success, errno < 0 in case of failure and 0 when no Hyper-V @@ -1172,9 +1192,8 @@ static int hyperv_handle_properties(CPUState *cs, struct kvm_cpuid_entry2 *cpuid_ent) { X86CPU *cpu = X86_CPU(cs); - CPUX86State *env = &cpu->env; struct kvm_cpuid2 *cpuid; - struct kvm_cpuid_entry2 *c; + struct kvm_cpuid_entry2 *c, *c2; uint32_t cpuid_i = 0; int r; @@ -1195,9 +1214,7 @@ static int hyperv_handle_properties(CPUState *cs, } if (!r) { - env->features[FEAT_HV_RECOMM_EAX] |= - HV_ENLIGHTENED_VMCS_RECOMMENDED; - env->features[FEAT_HV_NESTED_EAX] = evmcs_version; + cpu->hyperv_nested[0] = evmcs_version; } } @@ -1236,13 +1253,6 @@ static int hyperv_handle_properties(CPUState *cs, cpu->hyperv_version_id[3] = c->edx; } - c = cpuid_find_entry(cpuid, HV_CPUID_FEATURES, 0); - if (c) { - env->features[FEAT_HYPERV_EAX] = c->eax; - env->features[FEAT_HYPERV_EBX] = c->ebx; - env->features[FEAT_HYPERV_EDX] = c->edx; - } - c = cpuid_find_entry(cpuid, HV_CPUID_IMPLEMENT_LIMITS, 0); if (c) { cpu->hv_max_vps = c->eax; @@ -1253,23 +1263,8 @@ static int hyperv_handle_properties(CPUState *cs, c = cpuid_find_entry(cpuid, HV_CPUID_ENLIGHTMENT_INFO, 0); if (c) { - env->features[FEAT_HV_RECOMM_EAX] = c->eax; cpu->hyperv_spinlock_attempts = c->ebx; } - c = cpuid_find_entry(cpuid, HV_CPUID_NESTED_FEATURES, 0); - if (c) { - env->features[FEAT_HV_NESTED_EAX] = c->eax; - } - } - - if (cpu->hyperv_no_nonarch_cs == ON_OFF_AUTO_ON) { - env->features[FEAT_HV_RECOMM_EAX] |= HV_NO_NONARCH_CORESHARING; - } else if (cpu->hyperv_no_nonarch_cs == ON_OFF_AUTO_AUTO) { - c = cpuid_find_entry(cpuid, HV_CPUID_ENLIGHTMENT_INFO, 0); - if (c) { - env->features[FEAT_HV_RECOMM_EAX] |= - c->eax & HV_NO_NONARCH_CORESHARING; - } } /* Features */ @@ -1299,9 +1294,6 @@ static int hyperv_handle_properties(CPUState *cs, r |= 1; } - /* Not exposed by KVM but needed to make CPU hotplug in Windows work */ - env->features[FEAT_HYPERV_EDX] |= HV_CPU_DYNAMIC_PARTITIONING_AVAILABLE; - if (r) { r = -ENOSYS; goto free; @@ -1331,15 +1323,27 @@ static int hyperv_handle_properties(CPUState *cs, c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_FEATURES; - c->eax = env->features[FEAT_HYPERV_EAX]; - c->ebx = env->features[FEAT_HYPERV_EBX]; - c->edx = env->features[FEAT_HYPERV_EDX]; + c->eax = hv_build_cpuid_leaf(cs, FEAT_HYPERV_EAX); + c->ebx = hv_build_cpuid_leaf(cs, FEAT_HYPERV_EBX); + c->edx = hv_build_cpuid_leaf(cs, FEAT_HYPERV_EDX); + + /* Not exposed by KVM but needed to make CPU hotplug in Windows work */ + c->edx |= HV_CPU_DYNAMIC_PARTITIONING_AVAILABLE; c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_ENLIGHTMENT_INFO; - c->eax = env->features[FEAT_HV_RECOMM_EAX]; + c->eax = hv_build_cpuid_leaf(cs, FEAT_HV_RECOMM_EAX); c->ebx = cpu->hyperv_spinlock_attempts; + if (cpu->hyperv_no_nonarch_cs == ON_OFF_AUTO_ON) { + c->eax |= HV_NO_NONARCH_CORESHARING; + } else if (cpu->hyperv_no_nonarch_cs == ON_OFF_AUTO_AUTO) { + c2 = cpuid_find_entry(cpuid, HV_CPUID_ENLIGHTMENT_INFO, 0); + if (c2) { + c->eax |= c2->eax & HV_NO_NONARCH_CORESHARING; + } + } + c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_IMPLEMENT_LIMITS; c->eax = cpu->hv_max_vps; @@ -1359,7 +1363,7 @@ static int hyperv_handle_properties(CPUState *cs, c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_NESTED_FEATURES; - c->eax = env->features[FEAT_HV_NESTED_EAX]; + c->eax = cpu->hyperv_nested[0]; } r = cpuid_i; |