diff options
Diffstat (limited to 'target-i386/kvm.c')
| -rw-r--r-- | target-i386/kvm.c | 112 |
1 files changed, 73 insertions, 39 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 05010bbc38..0aa0a410da 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -301,6 +301,15 @@ void kvm_inject_x86_mce(CPUState *cenv, int bank, uint64_t status, #endif } +static void cpu_update_state(void *opaque, int running, int reason) +{ + CPUState *env = opaque; + + if (running) { + env->tsc_valid = false; + } +} + int kvm_arch_init_vcpu(CPUState *env) { struct { @@ -434,6 +443,8 @@ int kvm_arch_init_vcpu(CPUState *env) } #endif + qemu_add_vm_change_state_handler(cpu_update_state, env); + return kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data); } @@ -1061,7 +1072,12 @@ static int kvm_get_msrs(CPUState *env) if (has_msr_hsave_pa) { msrs[n++].index = MSR_VM_HSAVE_PA; } - msrs[n++].index = MSR_IA32_TSC; + + if (!env->tsc_valid) { + msrs[n++].index = MSR_IA32_TSC; + env->tsc_valid = !vm_running; + } + #ifdef TARGET_X86_64 if (lm_capable_kernel) { msrs[n++].index = MSR_CSTAR; @@ -1424,49 +1440,65 @@ int kvm_arch_get_registers(CPUState *env) return 0; } -int kvm_arch_pre_run(CPUState *env, struct kvm_run *run) +void kvm_arch_pre_run(CPUState *env, struct kvm_run *run) { + int ret; + /* Inject NMI */ if (env->interrupt_request & CPU_INTERRUPT_NMI) { env->interrupt_request &= ~CPU_INTERRUPT_NMI; DPRINTF("injected NMI\n"); - kvm_vcpu_ioctl(env, KVM_NMI); - } - - /* Try to inject an interrupt if the guest can accept it */ - if (run->ready_for_interrupt_injection && - (env->interrupt_request & CPU_INTERRUPT_HARD) && - (env->eflags & IF_MASK)) { - int irq; - - env->interrupt_request &= ~CPU_INTERRUPT_HARD; - irq = cpu_get_pic_interrupt(env); - if (irq >= 0) { - struct kvm_interrupt intr; - intr.irq = irq; - /* FIXME: errors */ - DPRINTF("injected interrupt %d\n", irq); - kvm_vcpu_ioctl(env, KVM_INTERRUPT, &intr); + ret = kvm_vcpu_ioctl(env, KVM_NMI); + if (ret < 0) { + fprintf(stderr, "KVM: injection failed, NMI lost (%s)\n", + strerror(-ret)); } } - /* If we have an interrupt but the guest is not ready to receive an - * interrupt, request an interrupt window exit. This will - * cause a return to userspace as soon as the guest is ready to - * receive interrupts. */ - if ((env->interrupt_request & CPU_INTERRUPT_HARD)) { - run->request_interrupt_window = 1; - } else { - run->request_interrupt_window = 0; - } + if (!kvm_irqchip_in_kernel()) { + /* Force the VCPU out of its inner loop to process the INIT request */ + if (env->interrupt_request & CPU_INTERRUPT_INIT) { + env->exit_request = 1; + } - DPRINTF("setting tpr\n"); - run->cr8 = cpu_get_apic_tpr(env->apic_state); + /* Try to inject an interrupt if the guest can accept it */ + if (run->ready_for_interrupt_injection && + (env->interrupt_request & CPU_INTERRUPT_HARD) && + (env->eflags & IF_MASK)) { + int irq; + + env->interrupt_request &= ~CPU_INTERRUPT_HARD; + irq = cpu_get_pic_interrupt(env); + if (irq >= 0) { + struct kvm_interrupt intr; + + intr.irq = irq; + DPRINTF("injected interrupt %d\n", irq); + ret = kvm_vcpu_ioctl(env, KVM_INTERRUPT, &intr); + if (ret < 0) { + fprintf(stderr, + "KVM: injection failed, interrupt lost (%s)\n", + strerror(-ret)); + } + } + } - return 0; + /* If we have an interrupt but the guest is not ready to receive an + * interrupt, request an interrupt window exit. This will + * cause a return to userspace as soon as the guest is ready to + * receive interrupts. */ + if ((env->interrupt_request & CPU_INTERRUPT_HARD)) { + run->request_interrupt_window = 1; + } else { + run->request_interrupt_window = 0; + } + + DPRINTF("setting tpr\n"); + run->cr8 = cpu_get_apic_tpr(env->apic_state); + } } -int kvm_arch_post_run(CPUState *env, struct kvm_run *run) +void kvm_arch_post_run(CPUState *env, struct kvm_run *run) { if (run->if_flag) { env->eflags |= IF_MASK; @@ -1475,18 +1507,21 @@ int kvm_arch_post_run(CPUState *env, struct kvm_run *run) } cpu_set_apic_tpr(env->apic_state, run->cr8); cpu_set_apic_base(env->apic_state, run->apic_base); - - return 0; } int kvm_arch_process_irqchip_events(CPUState *env) { + if (kvm_irqchip_in_kernel()) { + return 0; + } + + if (env->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI)) { + env->halted = 0; + } if (env->interrupt_request & CPU_INTERRUPT_INIT) { kvm_cpu_synchronize_state(env); do_cpu_init(env); - env->exception_index = EXCP_HALTED; } - if (env->interrupt_request & CPU_INTERRUPT_SIPI) { kvm_cpu_synchronize_state(env); do_cpu_sipi(env); @@ -1501,7 +1536,6 @@ static int kvm_handle_halt(CPUState *env) (env->eflags & IF_MASK)) && !(env->interrupt_request & CPU_INTERRUPT_NMI)) { env->halted = 1; - env->exception_index = EXCP_HLT; return 0; } @@ -1839,7 +1873,7 @@ static void kvm_mce_inj_srao_memscrub2(CPUState *env, target_phys_addr_t paddr) #endif -int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr) +int kvm_arch_on_sigbus_vcpu(CPUState *env, int code, void *addr) { #if defined(KVM_CAP_MCE) void *vaddr; @@ -1889,7 +1923,7 @@ int kvm_on_sigbus_vcpu(CPUState *env, int code, void *addr) return 0; } -int kvm_on_sigbus(int code, void *addr) +int kvm_arch_on_sigbus(int code, void *addr) { #if defined(KVM_CAP_MCE) if ((first_cpu->mcg_cap & MCG_SER_P) && addr && code == BUS_MCEERR_AO) { |