diff options
| -rw-r--r-- | accel/kvm/kvm-all.c | 30 | ||||
| -rw-r--r-- | include/hw/core/cpu.h | 1 |
2 files changed, 16 insertions, 15 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 7679f397ae..9aa898db14 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -450,6 +450,8 @@ int kvm_init_vcpu(CPUState *cpu, Error **errp) "kvm_init_vcpu: kvm_arch_init_vcpu failed (%lu)", kvm_arch_vcpu_id(cpu)); } + cpu->kvm_vcpu_stats_fd = kvm_vcpu_ioctl(cpu, KVM_GET_STATS_FD, NULL); + err: return ret; } @@ -4007,7 +4009,7 @@ static StatsDescriptors *find_stats_descriptors(StatsTarget target, int stats_fd /* Read stats header */ kvm_stats_header = &descriptors->kvm_stats_header; - ret = read(stats_fd, kvm_stats_header, sizeof(*kvm_stats_header)); + ret = pread(stats_fd, kvm_stats_header, sizeof(*kvm_stats_header), 0); if (ret != sizeof(*kvm_stats_header)) { error_setg(errp, "KVM stats: failed to read stats header: " "expected %zu actual %zu", @@ -4038,7 +4040,8 @@ static StatsDescriptors *find_stats_descriptors(StatsTarget target, int stats_fd } static void query_stats(StatsResultList **result, StatsTarget target, - strList *names, int stats_fd, Error **errp) + strList *names, int stats_fd, CPUState *cpu, + Error **errp) { struct kvm_stats_desc *kvm_stats_desc; struct kvm_stats_header *kvm_stats_header; @@ -4096,7 +4099,7 @@ static void query_stats(StatsResultList **result, StatsTarget target, break; case STATS_TARGET_VCPU: add_stats_entry(result, STATS_PROVIDER_KVM, - current_cpu->parent_obj.canonical_path, + cpu->parent_obj.canonical_path, stats_list); break; default: @@ -4133,10 +4136,9 @@ static void query_stats_schema(StatsSchemaList **result, StatsTarget target, add_stats_schema(result, STATS_PROVIDER_KVM, target, stats_list); } -static void query_stats_vcpu(CPUState *cpu, run_on_cpu_data data) +static void query_stats_vcpu(CPUState *cpu, StatsArgs *kvm_stats_args) { - StatsArgs *kvm_stats_args = (StatsArgs *) data.host_ptr; - int stats_fd = kvm_vcpu_ioctl(cpu, KVM_GET_STATS_FD, NULL); + int stats_fd = cpu->kvm_vcpu_stats_fd; Error *local_err = NULL; if (stats_fd == -1) { @@ -4145,14 +4147,13 @@ static void query_stats_vcpu(CPUState *cpu, run_on_cpu_data data) return; } query_stats(kvm_stats_args->result.stats, STATS_TARGET_VCPU, - kvm_stats_args->names, stats_fd, kvm_stats_args->errp); - close(stats_fd); + kvm_stats_args->names, stats_fd, cpu, + kvm_stats_args->errp); } -static void query_stats_schema_vcpu(CPUState *cpu, run_on_cpu_data data) +static void query_stats_schema_vcpu(CPUState *cpu, StatsArgs *kvm_stats_args) { - StatsArgs *kvm_stats_args = (StatsArgs *) data.host_ptr; - int stats_fd = kvm_vcpu_ioctl(cpu, KVM_GET_STATS_FD, NULL); + int stats_fd = cpu->kvm_vcpu_stats_fd; Error *local_err = NULL; if (stats_fd == -1) { @@ -4162,7 +4163,6 @@ static void query_stats_schema_vcpu(CPUState *cpu, run_on_cpu_data data) } query_stats_schema(kvm_stats_args->result.schema, STATS_TARGET_VCPU, stats_fd, kvm_stats_args->errp); - close(stats_fd); } static void query_stats_cb(StatsResultList **result, StatsTarget target, @@ -4180,7 +4180,7 @@ static void query_stats_cb(StatsResultList **result, StatsTarget target, error_setg_errno(errp, errno, "KVM stats: ioctl failed"); return; } - query_stats(result, target, names, stats_fd, errp); + query_stats(result, target, names, stats_fd, NULL, errp); close(stats_fd); break; } @@ -4194,7 +4194,7 @@ static void query_stats_cb(StatsResultList **result, StatsTarget target, if (!apply_str_list_filter(cpu->parent_obj.canonical_path, targets)) { continue; } - run_on_cpu(cpu, query_stats_vcpu, RUN_ON_CPU_HOST_PTR(&stats_args)); + query_stats_vcpu(cpu, &stats_args); } break; } @@ -4220,6 +4220,6 @@ void query_stats_schemas_cb(StatsSchemaList **result, Error **errp) if (first_cpu) { stats_args.result.schema = result; stats_args.errp = errp; - run_on_cpu(first_cpu, query_stats_schema_vcpu, RUN_ON_CPU_HOST_PTR(&stats_args)); + query_stats_schema_vcpu(first_cpu, &stats_args); } } diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index 4871ad85f0..3b765beb9b 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -402,6 +402,7 @@ struct CPUState { struct kvm_dirty_gfn *kvm_dirty_gfns; uint32_t kvm_fetch_index; uint64_t dirty_pages; + int kvm_vcpu_stats_fd; /* Use by accel-block: CPU is executing an ioctl() */ QemuLockCnt in_ioctl_lock; |