diff options
| -rw-r--r-- | accel/kvm/kvm-all.c | 11 | ||||
| -rw-r--r-- | configs/targets/i386-softmmu.mak | 1 | ||||
| -rw-r--r-- | configs/targets/x86_64-softmmu.mak | 1 | ||||
| -rw-r--r-- | include/sysemu/kvm.h | 8 | ||||
| -rw-r--r-- | target/i386/kvm/kvm.c | 15 |
5 files changed, 36 insertions, 0 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 77d811ca70..4ab277cc84 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -437,6 +437,16 @@ int kvm_unpark_vcpu(KVMState *s, unsigned long vcpu_id) return kvm_fd; } +static void kvm_reset_parked_vcpus(void *param) +{ + KVMState *s = param; + struct KVMParkedVcpu *cpu; + + QLIST_FOREACH(cpu, &s->kvm_parked_vcpus, node) { + kvm_arch_reset_parked_vcpu(cpu->vcpu_id, cpu->kvm_fd); + } +} + int kvm_create_vcpu(CPUState *cpu) { unsigned long vcpu_id = kvm_arch_vcpu_id(cpu); @@ -2728,6 +2738,7 @@ static int kvm_init(MachineState *ms) } qemu_register_reset(kvm_unpoison_all, NULL); + qemu_register_reset(kvm_reset_parked_vcpus, s); if (s->kernel_irqchip_allowed) { kvm_irqchip_create(s); diff --git a/configs/targets/i386-softmmu.mak b/configs/targets/i386-softmmu.mak index 2ac69d5ba3..2eb0e86250 100644 --- a/configs/targets/i386-softmmu.mak +++ b/configs/targets/i386-softmmu.mak @@ -1,4 +1,5 @@ TARGET_ARCH=i386 TARGET_SUPPORTS_MTTCG=y TARGET_KVM_HAVE_GUEST_DEBUG=y +TARGET_KVM_HAVE_RESET_PARKED_VCPU=y TARGET_XML_FILES= gdb-xml/i386-32bit.xml diff --git a/configs/targets/x86_64-softmmu.mak b/configs/targets/x86_64-softmmu.mak index e12ac3dc59..920e9a4200 100644 --- a/configs/targets/x86_64-softmmu.mak +++ b/configs/targets/x86_64-softmmu.mak @@ -2,4 +2,5 @@ TARGET_ARCH=x86_64 TARGET_BASE_ARCH=i386 TARGET_SUPPORTS_MTTCG=y TARGET_KVM_HAVE_GUEST_DEBUG=y +TARGET_KVM_HAVE_RESET_PARKED_VCPU=y TARGET_XML_FILES= gdb-xml/i386-64bit.xml diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index c3a60b2890..ab17c09a55 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -377,6 +377,14 @@ int kvm_arch_init(MachineState *ms, KVMState *s); int kvm_arch_init_vcpu(CPUState *cpu); int kvm_arch_destroy_vcpu(CPUState *cpu); +#ifdef TARGET_KVM_HAVE_RESET_PARKED_VCPU +void kvm_arch_reset_parked_vcpu(unsigned long vcpu_id, int kvm_fd); +#else +static inline void kvm_arch_reset_parked_vcpu(unsigned long vcpu_id, int kvm_fd) +{ +} +#endif + bool kvm_vcpu_id_is_valid(int vcpu_id); /* Returns VCPU ID to be used on KVM_CREATE_VCPU ioctl() */ diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 8e17942c3b..2ff618fbf1 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -2415,6 +2415,21 @@ void kvm_arch_after_reset_vcpu(X86CPU *cpu) } } +void kvm_arch_reset_parked_vcpu(unsigned long vcpu_id, int kvm_fd) +{ + g_autofree struct kvm_msrs *msrs = NULL; + + msrs = g_malloc0(sizeof(*msrs) + sizeof(msrs->entries[0])); + msrs->entries[0].index = MSR_IA32_TSC; + msrs->entries[0].data = 1; /* match the value in x86_cpu_reset() */ + msrs->nmsrs++; + + if (ioctl(kvm_fd, KVM_SET_MSRS, msrs) != 1) { + warn_report("parked vCPU %lu TSC reset failed: %d", + vcpu_id, errno); + } +} + void kvm_arch_do_init_vcpu(X86CPU *cpu) { CPUX86State *env = &cpu->env; |