diff options
Diffstat (limited to 'target/i386/kvm.c')
| -rw-r--r-- | target/i386/kvm.c | 78 |
1 files changed, 64 insertions, 14 deletions
diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 0b2a07d3a4..115d8b4c14 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -608,7 +608,8 @@ static bool hyperv_enabled(X86CPU *cpu) cpu->hyperv_synic || cpu->hyperv_stimer || cpu->hyperv_reenlightenment || - cpu->hyperv_tlbflush); + cpu->hyperv_tlbflush || + cpu->hyperv_ipi); } static int kvm_arch_set_tsc_khz(CPUState *cs) @@ -733,9 +734,20 @@ static int hyperv_handle_properties(CPUState *cs) env->features[FEAT_HYPERV_EAX] |= HV_VP_RUNTIME_AVAILABLE; } if (cpu->hyperv_synic) { - if (!has_msr_hv_synic || - kvm_vcpu_enable_cap(cs, KVM_CAP_HYPERV_SYNIC, 0)) { - fprintf(stderr, "Hyper-V SynIC is not supported by kernel\n"); + unsigned int cap = KVM_CAP_HYPERV_SYNIC; + if (!cpu->hyperv_synic_kvm_only) { + if (!cpu->hyperv_vpindex) { + fprintf(stderr, "Hyper-V SynIC " + "(requested by 'hv-synic' cpu flag) " + "requires Hyper-V VP_INDEX ('hv-vpindex')\n"); + return -ENOSYS; + } + cap = KVM_CAP_HYPERV_SYNIC2; + } + + if (!has_msr_hv_synic || !kvm_check_extension(cs->kvm_state, cap)) { + fprintf(stderr, "Hyper-V SynIC (requested by 'hv-synic' cpu flag) " + "is not supported by kernel\n"); return -ENOSYS; } @@ -753,12 +765,14 @@ static int hyperv_handle_properties(CPUState *cs) static int hyperv_init_vcpu(X86CPU *cpu) { + CPUState *cs = CPU(cpu); + int ret; + if (cpu->hyperv_vpindex && !hv_vpindex_settable) { /* * the kernel doesn't support setting vp_index; assert that its value * is in sync */ - int ret; struct { struct kvm_msrs info; struct kvm_msr_entry entries[1]; @@ -767,18 +781,38 @@ static int hyperv_init_vcpu(X86CPU *cpu) .entries[0].index = HV_X64_MSR_VP_INDEX, }; - ret = kvm_vcpu_ioctl(CPU(cpu), KVM_GET_MSRS, &msr_data); + ret = kvm_vcpu_ioctl(cs, KVM_GET_MSRS, &msr_data); if (ret < 0) { return ret; } assert(ret == 1); - if (msr_data.entries[0].data != hyperv_vp_index(cpu)) { + if (msr_data.entries[0].data != hyperv_vp_index(CPU(cpu))) { error_report("kernel's vp_index != QEMU's vp_index"); return -ENXIO; } } + if (cpu->hyperv_synic) { + uint32_t synic_cap = cpu->hyperv_synic_kvm_only ? + KVM_CAP_HYPERV_SYNIC : KVM_CAP_HYPERV_SYNIC2; + ret = kvm_vcpu_enable_cap(cs, synic_cap, 0); + if (ret < 0) { + error_report("failed to turn on HyperV SynIC in KVM: %s", + strerror(-ret)); + return ret; + } + + if (!cpu->hyperv_synic_kvm_only) { + ret = hyperv_x86_synic_add(cpu); + if (ret < 0) { + error_report("failed to create HyperV SynIC: %s", + strerror(-ret)); + return ret; + } + } + } + return 0; } @@ -888,6 +922,17 @@ int kvm_arch_init_vcpu(CPUState *cs) c->eax |= HV_REMOTE_TLB_FLUSH_RECOMMENDED; c->eax |= HV_EX_PROCESSOR_MASKS_RECOMMENDED; } + if (cpu->hyperv_ipi) { + if (kvm_check_extension(cs->kvm_state, + KVM_CAP_HYPERV_SEND_IPI) <= 0) { + fprintf(stderr, "Hyper-V IPI send support " + "(requested by 'hv-ipi' cpu flag) " + " is not supported by kernel\n"); + return -ENOSYS; + } + c->eax |= HV_CLUSTER_IPI_RECOMMENDED; + c->eax |= HV_EX_PROCESSOR_MASKS_RECOMMENDED; + } c->ebx = cpu->hyperv_spinlock_attempts; @@ -1153,7 +1198,7 @@ int kvm_arch_init_vcpu(CPUState *cs) if (local_err) { error_report_err(local_err); error_free(invtsc_mig_blocker); - goto fail; + return r; } /* for savevm */ vmstate_x86_cpu.unmigratable = 1; @@ -1189,7 +1234,7 @@ int kvm_arch_init_vcpu(CPUState *cs) } if (has_xsave) { - env->kvm_xsave_buf = qemu_memalign(4096, sizeof(struct kvm_xsave)); + env->xsave_buf = qemu_memalign(4096, sizeof(struct kvm_xsave)); } cpu->kvm_msr_buf = g_malloc0(MSR_BUF_SIZE); @@ -1226,6 +1271,8 @@ void kvm_arch_reset_vcpu(X86CPU *cpu) for (i = 0; i < ARRAY_SIZE(env->msr_hv_synic_sint); i++) { env->msr_hv_synic_sint[i] = HV_SINT_MASKED; } + + hyperv_x86_synic_reset(cpu); } } @@ -1639,7 +1686,7 @@ ASSERT_OFFSET(XSAVE_PKRU, pkru_state); static int kvm_put_xsave(X86CPU *cpu) { CPUX86State *env = &cpu->env; - X86XSaveArea *xsave = env->kvm_xsave_buf; + X86XSaveArea *xsave = env->xsave_buf; if (!has_xsave) { return kvm_put_fpu(cpu); @@ -1937,7 +1984,8 @@ static int kvm_put_msrs(X86CPU *cpu, int level) kvm_msr_entry_add(cpu, HV_X64_MSR_VP_RUNTIME, env->msr_hv_runtime); } if (cpu->hyperv_vpindex && hv_vpindex_settable) { - kvm_msr_entry_add(cpu, HV_X64_MSR_VP_INDEX, hyperv_vp_index(cpu)); + kvm_msr_entry_add(cpu, HV_X64_MSR_VP_INDEX, + hyperv_vp_index(CPU(cpu))); } if (cpu->hyperv_synic) { int j; @@ -2081,7 +2129,7 @@ static int kvm_get_fpu(X86CPU *cpu) static int kvm_get_xsave(X86CPU *cpu) { CPUX86State *env = &cpu->env; - X86XSaveArea *xsave = env->kvm_xsave_buf; + X86XSaveArea *xsave = env->xsave_buf; int ret; if (!has_xsave) { @@ -2686,7 +2734,6 @@ static int kvm_put_vcpu_events(X86CPU *cpu, int level) events.exception.nr = env->exception_injected; events.exception.has_error_code = env->has_error_code; events.exception.error_code = env->error_code; - events.exception.pad = 0; events.interrupt.injected = (env->interrupt_injected >= 0); events.interrupt.nr = env->interrupt_injected; @@ -2695,7 +2742,6 @@ static int kvm_put_vcpu_events(X86CPU *cpu, int level) events.nmi.injected = env->nmi_injected; events.nmi.pending = env->nmi_pending; events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); - events.nmi.pad = 0; events.sipi_vector = env->sipi_vector; events.flags = 0; @@ -3669,6 +3715,10 @@ int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, MSIMessage src, dst; X86IOMMUClass *class = X86_IOMMU_GET_CLASS(iommu); + if (!class->int_remap) { + return 0; + } + src.address = route->u.msi.address_hi; src.address <<= VTD_MSI_ADDR_HI_SHIFT; src.address |= route->u.msi.address_lo; |