+/*
+ * task_thaw:
+ *
+ * Thaw a currently frozen task.
+ *
+ * Conditions:
+ * The caller holds a reference to the task
+ */
+kern_return_t
+task_thaw(
+ task_t task)
+{
+ if (task == TASK_NULL || task == kernel_task)
+ return (KERN_INVALID_ARGUMENT);
+
+ task_lock(task);
+
+ while (task->changing_freeze_state) {
+
+ assert_wait((event_t)&task->changing_freeze_state, THREAD_UNINT);
+ task_unlock(task);
+ thread_block(THREAD_CONTINUE_NULL);
+
+ task_lock(task);
+ }
+ if (!task->frozen) {
+ task_unlock(task);
+ return (KERN_FAILURE);
+ }
+ task->frozen = FALSE;
+
+ task_unlock(task);
+
+ return (KERN_SUCCESS);
+}
+
+#endif /* CONFIG_FREEZE */
+
+kern_return_t
+host_security_set_task_token(
+ host_security_t host_security,
+ task_t task,
+ security_token_t sec_token,
+ audit_token_t audit_token,
+ host_priv_t host_priv)
+{
+ ipc_port_t host_port;
+ kern_return_t kr;
+
+ if (task == TASK_NULL)
+ return(KERN_INVALID_ARGUMENT);
+
+ if (host_security == HOST_NULL)
+ return(KERN_INVALID_SECURITY);
+
+ task_lock(task);
+ task->sec_token = sec_token;
+ task->audit_token = audit_token;
+
+ task_unlock(task);
+
+ if (host_priv != HOST_PRIV_NULL) {
+ kr = host_get_host_priv_port(host_priv, &host_port);
+ } else {
+ kr = host_get_host_port(host_priv_self(), &host_port);
+ }
+ assert(kr == KERN_SUCCESS);
+ kr = task_set_special_port(task, TASK_HOST_PORT, host_port);
+ return(kr);
+}
+
+kern_return_t
+task_send_trace_memory(
+ task_t target_task,
+ __unused uint32_t pid,
+ __unused uint64_t uniqueid)
+{
+ kern_return_t kr = KERN_INVALID_ARGUMENT;
+ if (target_task == TASK_NULL)
+ return (KERN_INVALID_ARGUMENT);
+
+#if CONFIG_ATM
+ kr = atm_send_proc_inspect_notification(target_task,
+ pid,
+ uniqueid);
+
+#endif
+ return (kr);
+}
+/*
+ * This routine was added, pretty much exclusively, for registering the
+ * RPC glue vector for in-kernel short circuited tasks. Rather than
+ * removing it completely, I have only disabled that feature (which was
+ * the only feature at the time). It just appears that we are going to
+ * want to add some user data to tasks in the future (i.e. bsd info,
+ * task names, etc...), so I left it in the formal task interface.
+ */
+kern_return_t
+task_set_info(
+ task_t task,
+ task_flavor_t flavor,
+ __unused task_info_t task_info_in, /* pointer to IN array */
+ __unused mach_msg_type_number_t task_info_count)
+{
+ if (task == TASK_NULL)
+ return(KERN_INVALID_ARGUMENT);
+
+ switch (flavor) {
+
+#if CONFIG_ATM
+ case TASK_TRACE_MEMORY_INFO:
+ {
+ if (task_info_count != TASK_TRACE_MEMORY_INFO_COUNT)
+ return (KERN_INVALID_ARGUMENT);
+
+ assert(task_info_in != NULL);
+ task_trace_memory_info_t mem_info;
+ mem_info = (task_trace_memory_info_t) task_info_in;
+ kern_return_t kr = atm_register_trace_memory(task,
+ mem_info->user_memory_address,
+ mem_info->buffer_size);
+ return kr;
+ }
+
+#endif
+ default:
+ return (KERN_INVALID_ARGUMENT);
+ }
+ return (KERN_SUCCESS);
+}
+
+int radar_20146450 = 1;
+kern_return_t
+task_info(
+ task_t task,
+ task_flavor_t flavor,
+ task_info_t task_info_out,
+ mach_msg_type_number_t *task_info_count)
+{
+ kern_return_t error = KERN_SUCCESS;
+ mach_msg_type_number_t original_task_info_count;
+
+ if (task == TASK_NULL)
+ return (KERN_INVALID_ARGUMENT);
+
+ original_task_info_count = *task_info_count;
+ task_lock(task);
+
+ if ((task != current_task()) && (!task->active)) {
+ task_unlock(task);
+ return (KERN_INVALID_ARGUMENT);
+ }
+
+ switch (flavor) {
+
+ case TASK_BASIC_INFO_32:
+ case TASK_BASIC2_INFO_32:
+ {
+ task_basic_info_32_t basic_info;
+ vm_map_t map;
+ clock_sec_t secs;
+ clock_usec_t usecs;
+
+ if (*task_info_count < TASK_BASIC_INFO_32_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ basic_info = (task_basic_info_32_t)task_info_out;
+
+ map = (task == kernel_task)? kernel_map: task->map;
+ basic_info->virtual_size = (typeof(basic_info->virtual_size))map->size;
+ if (flavor == TASK_BASIC2_INFO_32) {
+ /*
+ * The "BASIC2" flavor gets the maximum resident
+ * size instead of the current resident size...
+ */
+ basic_info->resident_size = pmap_resident_max(map->pmap);
+ } else {
+ basic_info->resident_size = pmap_resident_count(map->pmap);
+ }
+ basic_info->resident_size *= PAGE_SIZE;
+
+ basic_info->policy = ((task != kernel_task)?
+ POLICY_TIMESHARE: POLICY_RR);
+ basic_info->suspend_count = task->user_stop_count;
+
+ absolutetime_to_microtime(task->total_user_time, &secs, &usecs);
+ basic_info->user_time.seconds =
+ (typeof(basic_info->user_time.seconds))secs;
+ basic_info->user_time.microseconds = usecs;
+
+ absolutetime_to_microtime(task->total_system_time, &secs, &usecs);
+ basic_info->system_time.seconds =
+ (typeof(basic_info->system_time.seconds))secs;
+ basic_info->system_time.microseconds = usecs;
+
+ *task_info_count = TASK_BASIC_INFO_32_COUNT;
+ break;
+ }
+
+ case TASK_BASIC_INFO_64:
+ {
+ task_basic_info_64_t basic_info;
+ vm_map_t map;
+ clock_sec_t secs;
+ clock_usec_t usecs;
+
+ if (*task_info_count < TASK_BASIC_INFO_64_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ basic_info = (task_basic_info_64_t)task_info_out;
+
+ map = (task == kernel_task)? kernel_map: task->map;
+ basic_info->virtual_size = map->size;
+ basic_info->resident_size =
+ (mach_vm_size_t)(pmap_resident_count(map->pmap))
+ * PAGE_SIZE_64;
+
+ basic_info->policy = ((task != kernel_task)?
+ POLICY_TIMESHARE: POLICY_RR);
+ basic_info->suspend_count = task->user_stop_count;
+
+ absolutetime_to_microtime(task->total_user_time, &secs, &usecs);
+ basic_info->user_time.seconds =
+ (typeof(basic_info->user_time.seconds))secs;
+ basic_info->user_time.microseconds = usecs;
+
+ absolutetime_to_microtime(task->total_system_time, &secs, &usecs);
+ basic_info->system_time.seconds =
+ (typeof(basic_info->system_time.seconds))secs;
+ basic_info->system_time.microseconds = usecs;
+
+ *task_info_count = TASK_BASIC_INFO_64_COUNT;
+ break;
+ }
+
+ case MACH_TASK_BASIC_INFO:
+ {
+ mach_task_basic_info_t basic_info;
+ vm_map_t map;
+ clock_sec_t secs;
+ clock_usec_t usecs;
+
+ if (*task_info_count < MACH_TASK_BASIC_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ basic_info = (mach_task_basic_info_t)task_info_out;
+
+ map = (task == kernel_task) ? kernel_map : task->map;
+
+ basic_info->virtual_size = map->size;
+
+ basic_info->resident_size =
+ (mach_vm_size_t)(pmap_resident_count(map->pmap));
+ basic_info->resident_size *= PAGE_SIZE_64;
+
+ basic_info->resident_size_max =
+ (mach_vm_size_t)(pmap_resident_max(map->pmap));
+ basic_info->resident_size_max *= PAGE_SIZE_64;
+
+ basic_info->policy = ((task != kernel_task) ?
+ POLICY_TIMESHARE : POLICY_RR);
+
+ basic_info->suspend_count = task->user_stop_count;
+
+ absolutetime_to_microtime(task->total_user_time, &secs, &usecs);
+ basic_info->user_time.seconds =
+ (typeof(basic_info->user_time.seconds))secs;
+ basic_info->user_time.microseconds = usecs;
+
+ absolutetime_to_microtime(task->total_system_time, &secs, &usecs);
+ basic_info->system_time.seconds =
+ (typeof(basic_info->system_time.seconds))secs;
+ basic_info->system_time.microseconds = usecs;
+
+ *task_info_count = MACH_TASK_BASIC_INFO_COUNT;
+ break;
+ }
+
+ case TASK_THREAD_TIMES_INFO:
+ {
+ task_thread_times_info_t times_info;
+ thread_t thread;
+
+ if (*task_info_count < TASK_THREAD_TIMES_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ times_info = (task_thread_times_info_t) task_info_out;
+ times_info->user_time.seconds = 0;
+ times_info->user_time.microseconds = 0;
+ times_info->system_time.seconds = 0;
+ times_info->system_time.microseconds = 0;
+
+
+ queue_iterate(&task->threads, thread, thread_t, task_threads) {
+ time_value_t user_time, system_time;
+
+ if (thread->options & TH_OPT_IDLE_THREAD)
+ continue;
+
+ thread_read_times(thread, &user_time, &system_time);
+
+ time_value_add(×_info->user_time, &user_time);
+ time_value_add(×_info->system_time, &system_time);
+ }
+
+ *task_info_count = TASK_THREAD_TIMES_INFO_COUNT;
+ break;
+ }
+
+ case TASK_ABSOLUTETIME_INFO:
+ {
+ task_absolutetime_info_t info;
+ thread_t thread;
+
+ if (*task_info_count < TASK_ABSOLUTETIME_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ info = (task_absolutetime_info_t)task_info_out;
+ info->threads_user = info->threads_system = 0;
+
+
+ info->total_user = task->total_user_time;
+ info->total_system = task->total_system_time;
+
+ queue_iterate(&task->threads, thread, thread_t, task_threads) {
+ uint64_t tval;
+ spl_t x;
+
+ if (thread->options & TH_OPT_IDLE_THREAD)
+ continue;
+
+ x = splsched();
+ thread_lock(thread);
+
+ tval = timer_grab(&thread->user_timer);
+ info->threads_user += tval;
+ info->total_user += tval;
+
+ tval = timer_grab(&thread->system_timer);
+ if (thread->precise_user_kernel_time) {
+ info->threads_system += tval;
+ info->total_system += tval;
+ } else {
+ /* system_timer may represent either sys or user */
+ info->threads_user += tval;
+ info->total_user += tval;
+ }
+
+ thread_unlock(thread);
+ splx(x);
+ }
+
+
+ *task_info_count = TASK_ABSOLUTETIME_INFO_COUNT;
+ break;
+ }
+
+ case TASK_DYLD_INFO:
+ {
+ task_dyld_info_t info;
+
+ /*
+ * We added the format field to TASK_DYLD_INFO output. For
+ * temporary backward compatibility, accept the fact that
+ * clients may ask for the old version - distinquished by the
+ * size of the expected result structure.
+ */
+#define TASK_LEGACY_DYLD_INFO_COUNT \
+ offsetof(struct task_dyld_info, all_image_info_format)/sizeof(natural_t)
+
+ if (*task_info_count < TASK_LEGACY_DYLD_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ info = (task_dyld_info_t)task_info_out;
+ info->all_image_info_addr = task->all_image_info_addr;
+ info->all_image_info_size = task->all_image_info_size;
+
+ /* only set format on output for those expecting it */
+ if (*task_info_count >= TASK_DYLD_INFO_COUNT) {
+ info->all_image_info_format = task_has_64BitAddr(task) ?
+ TASK_DYLD_ALL_IMAGE_INFO_64 :
+ TASK_DYLD_ALL_IMAGE_INFO_32 ;
+ *task_info_count = TASK_DYLD_INFO_COUNT;
+ } else {
+ *task_info_count = TASK_LEGACY_DYLD_INFO_COUNT;
+ }
+ break;
+ }
+
+ case TASK_EXTMOD_INFO:
+ {
+ task_extmod_info_t info;
+ void *p;
+
+ if (*task_info_count < TASK_EXTMOD_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ info = (task_extmod_info_t)task_info_out;
+
+ p = get_bsdtask_info(task);
+ if (p) {
+ proc_getexecutableuuid(p, info->task_uuid, sizeof(info->task_uuid));
+ } else {
+ bzero(info->task_uuid, sizeof(info->task_uuid));
+ }
+ info->extmod_statistics = task->extmod_statistics;
+ *task_info_count = TASK_EXTMOD_INFO_COUNT;
+
+ break;
+ }
+
+ case TASK_KERNELMEMORY_INFO:
+ {
+ task_kernelmemory_info_t tkm_info;
+ ledger_amount_t credit, debit;
+
+ if (*task_info_count < TASK_KERNELMEMORY_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ tkm_info = (task_kernelmemory_info_t) task_info_out;
+ tkm_info->total_palloc = 0;
+ tkm_info->total_pfree = 0;
+ tkm_info->total_salloc = 0;
+ tkm_info->total_sfree = 0;
+
+ if (task == kernel_task) {
+ /*
+ * All shared allocs/frees from other tasks count against
+ * the kernel private memory usage. If we are looking up
+ * info for the kernel task, gather from everywhere.
+ */
+ task_unlock(task);
+
+ /* start by accounting for all the terminated tasks against the kernel */
+ tkm_info->total_palloc = tasks_tkm_private.alloc + tasks_tkm_shared.alloc;
+ tkm_info->total_pfree = tasks_tkm_private.free + tasks_tkm_shared.free;
+
+ /* count all other task/thread shared alloc/free against the kernel */
+ lck_mtx_lock(&tasks_threads_lock);
+
+ /* XXX this really shouldn't be using the function parameter 'task' as a local var! */
+ queue_iterate(&tasks, task, task_t, tasks) {
+ if (task == kernel_task) {
+ if (ledger_get_entries(task->ledger,
+ task_ledgers.tkm_private, &credit,
+ &debit) == KERN_SUCCESS) {
+ tkm_info->total_palloc += credit;
+ tkm_info->total_pfree += debit;
+ }
+ }
+ if (!ledger_get_entries(task->ledger,
+ task_ledgers.tkm_shared, &credit, &debit)) {
+ tkm_info->total_palloc += credit;
+ tkm_info->total_pfree += debit;
+ }
+ }
+ lck_mtx_unlock(&tasks_threads_lock);
+ } else {
+ if (!ledger_get_entries(task->ledger,
+ task_ledgers.tkm_private, &credit, &debit)) {
+ tkm_info->total_palloc = credit;
+ tkm_info->total_pfree = debit;
+ }
+ if (!ledger_get_entries(task->ledger,
+ task_ledgers.tkm_shared, &credit, &debit)) {
+ tkm_info->total_salloc = credit;
+ tkm_info->total_sfree = debit;
+ }
+ task_unlock(task);
+ }
+
+ *task_info_count = TASK_KERNELMEMORY_INFO_COUNT;
+ return KERN_SUCCESS;
+ }
+
+ /* OBSOLETE */
+ case TASK_SCHED_FIFO_INFO:
+ {
+
+ if (*task_info_count < POLICY_FIFO_BASE_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ error = KERN_INVALID_POLICY;
+ break;
+ }
+
+ /* OBSOLETE */
+ case TASK_SCHED_RR_INFO:
+ {
+ policy_rr_base_t rr_base;
+ uint32_t quantum_time;
+ uint64_t quantum_ns;
+
+ if (*task_info_count < POLICY_RR_BASE_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ rr_base = (policy_rr_base_t) task_info_out;
+
+ if (task != kernel_task) {
+ error = KERN_INVALID_POLICY;
+ break;
+ }
+
+ rr_base->base_priority = task->priority;
+
+ quantum_time = SCHED(initial_quantum_size)(THREAD_NULL);
+ absolutetime_to_nanoseconds(quantum_time, &quantum_ns);
+
+ rr_base->quantum = (uint32_t)(quantum_ns / 1000 / 1000);
+
+ *task_info_count = POLICY_RR_BASE_COUNT;
+ break;
+ }
+
+ /* OBSOLETE */
+ case TASK_SCHED_TIMESHARE_INFO:
+ {
+ policy_timeshare_base_t ts_base;
+
+ if (*task_info_count < POLICY_TIMESHARE_BASE_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ ts_base = (policy_timeshare_base_t) task_info_out;
+
+ if (task == kernel_task) {
+ error = KERN_INVALID_POLICY;
+ break;
+ }
+
+ ts_base->base_priority = task->priority;
+
+ *task_info_count = POLICY_TIMESHARE_BASE_COUNT;
+ break;
+ }
+
+ case TASK_SECURITY_TOKEN:
+ {
+ security_token_t *sec_token_p;
+
+ if (*task_info_count < TASK_SECURITY_TOKEN_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ sec_token_p = (security_token_t *) task_info_out;
+
+ *sec_token_p = task->sec_token;
+
+ *task_info_count = TASK_SECURITY_TOKEN_COUNT;
+ break;
+ }
+
+ case TASK_AUDIT_TOKEN:
+ {
+ audit_token_t *audit_token_p;
+
+ if (*task_info_count < TASK_AUDIT_TOKEN_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ audit_token_p = (audit_token_t *) task_info_out;
+
+ *audit_token_p = task->audit_token;
+
+ *task_info_count = TASK_AUDIT_TOKEN_COUNT;
+ break;
+ }
+
+ case TASK_SCHED_INFO:
+ error = KERN_INVALID_ARGUMENT;
+ break;
+
+ case TASK_EVENTS_INFO:
+ {
+ task_events_info_t events_info;
+ thread_t thread;
+
+ if (*task_info_count < TASK_EVENTS_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ events_info = (task_events_info_t) task_info_out;
+
+
+ events_info->faults = task->faults;
+ events_info->pageins = task->pageins;
+ events_info->cow_faults = task->cow_faults;
+ events_info->messages_sent = task->messages_sent;
+ events_info->messages_received = task->messages_received;
+ events_info->syscalls_mach = task->syscalls_mach;
+ events_info->syscalls_unix = task->syscalls_unix;
+
+ events_info->csw = task->c_switch;
+
+ queue_iterate(&task->threads, thread, thread_t, task_threads) {
+ events_info->csw += thread->c_switch;
+ events_info->syscalls_mach += thread->syscalls_mach;
+ events_info->syscalls_unix += thread->syscalls_unix;
+ }
+
+
+ *task_info_count = TASK_EVENTS_INFO_COUNT;
+ break;
+ }
+ case TASK_AFFINITY_TAG_INFO:
+ {
+ if (*task_info_count < TASK_AFFINITY_TAG_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ error = task_affinity_info(task, task_info_out, task_info_count);
+ break;
+ }
+ case TASK_POWER_INFO:
+ {
+ if (*task_info_count < TASK_POWER_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ task_power_info_locked(task, (task_power_info_t)task_info_out, NULL, NULL);
+ break;
+ }
+
+ case TASK_POWER_INFO_V2:
+ {
+ if (*task_info_count < TASK_POWER_INFO_V2_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+ task_power_info_v2_t tpiv2 = (task_power_info_v2_t) task_info_out;
+
+ uint64_t *task_energy = NULL;
+ task_power_info_locked(task, &tpiv2->cpu_energy, &tpiv2->gpu_energy, task_energy);
+ break;
+ }
+
+ case TASK_VM_INFO:
+ case TASK_VM_INFO_PURGEABLE:
+ {
+ task_vm_info_t vm_info;
+ vm_map_t map;
+
+ if (*task_info_count < TASK_VM_INFO_REV0_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ vm_info = (task_vm_info_t)task_info_out;
+
+ if (task == kernel_task) {
+ map = kernel_map;
+ /* no lock */
+ } else {
+ map = task->map;
+ vm_map_lock_read(map);
+ }
+
+ vm_info->virtual_size = (typeof(vm_info->virtual_size))map->size;
+ vm_info->region_count = map->hdr.nentries;
+ vm_info->page_size = vm_map_page_size(map);
+
+ vm_info->resident_size = pmap_resident_count(map->pmap);
+ vm_info->resident_size *= PAGE_SIZE;
+ vm_info->resident_size_peak = pmap_resident_max(map->pmap);
+ vm_info->resident_size_peak *= PAGE_SIZE;
+
+#define _VM_INFO(_name) \
+ vm_info->_name = ((mach_vm_size_t) map->pmap->stats._name) * PAGE_SIZE
+
+ _VM_INFO(device);
+ _VM_INFO(device_peak);
+ _VM_INFO(external);
+ _VM_INFO(external_peak);
+ _VM_INFO(internal);
+ _VM_INFO(internal_peak);
+ _VM_INFO(reusable);
+ _VM_INFO(reusable_peak);
+ _VM_INFO(compressed);
+ _VM_INFO(compressed_peak);
+ _VM_INFO(compressed_lifetime);
+
+ vm_info->purgeable_volatile_pmap = 0;
+ vm_info->purgeable_volatile_resident = 0;
+ vm_info->purgeable_volatile_virtual = 0;
+ if (task == kernel_task) {
+ /*
+ * We do not maintain the detailed stats for the
+ * kernel_pmap, so just count everything as
+ * "internal"...
+ */
+ vm_info->internal = vm_info->resident_size;
+ /*
+ * ... but since the memory held by the VM compressor
+ * in the kernel address space ought to be attributed
+ * to user-space tasks, we subtract it from "internal"
+ * to give memory reporting tools a more accurate idea
+ * of what the kernel itself is actually using, instead
+ * of making it look like the kernel is leaking memory
+ * when the system is under memory pressure.
+ */
+ vm_info->internal -= (VM_PAGE_COMPRESSOR_COUNT *
+ PAGE_SIZE);
+ } else {
+ mach_vm_size_t volatile_virtual_size;
+ mach_vm_size_t volatile_resident_size;
+ mach_vm_size_t volatile_compressed_size;
+ mach_vm_size_t volatile_pmap_size;
+ mach_vm_size_t volatile_compressed_pmap_size;
+ kern_return_t kr;
+
+ if (flavor == TASK_VM_INFO_PURGEABLE) {
+ kr = vm_map_query_volatile(
+ map,
+ &volatile_virtual_size,
+ &volatile_resident_size,
+ &volatile_compressed_size,
+ &volatile_pmap_size,
+ &volatile_compressed_pmap_size);
+ if (kr == KERN_SUCCESS) {
+ vm_info->purgeable_volatile_pmap =
+ volatile_pmap_size;
+ if (radar_20146450) {
+ vm_info->compressed -=
+ volatile_compressed_pmap_size;
+ }
+ vm_info->purgeable_volatile_resident =
+ volatile_resident_size;
+ vm_info->purgeable_volatile_virtual =
+ volatile_virtual_size;
+ }
+ }
+ }
+ *task_info_count = TASK_VM_INFO_REV0_COUNT;
+
+ if (original_task_info_count >= TASK_VM_INFO_REV1_COUNT) {
+ vm_info->phys_footprint =
+ (mach_vm_size_t) get_task_phys_footprint(task);
+ *task_info_count = TASK_VM_INFO_REV1_COUNT;
+ }
+ if (original_task_info_count >= TASK_VM_INFO_REV2_COUNT) {
+ vm_info->min_address = map->min_offset;
+ vm_info->max_address = map->max_offset;
+ *task_info_count = TASK_VM_INFO_REV2_COUNT;
+ }
+
+ if (task != kernel_task) {
+ vm_map_unlock_read(map);
+ }
+
+ break;
+ }
+
+ case TASK_WAIT_STATE_INFO:
+ {
+ /*
+ * Deprecated flavor. Currently allowing some results until all users
+ * stop calling it. The results may not be accurate.
+ */
+ task_wait_state_info_t wait_state_info;
+ uint64_t total_sfi_ledger_val = 0;
+
+ if (*task_info_count < TASK_WAIT_STATE_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ wait_state_info = (task_wait_state_info_t) task_info_out;
+
+ wait_state_info->total_wait_state_time = 0;
+ bzero(wait_state_info->_reserved, sizeof(wait_state_info->_reserved));
+
+#if CONFIG_SCHED_SFI
+ int i, prev_lentry = -1;
+ int64_t val_credit, val_debit;
+
+ for (i = 0; i < MAX_SFI_CLASS_ID; i++){
+ val_credit =0;
+ /*
+ * checking with prev_lentry != entry ensures adjacent classes
+ * which share the same ledger do not add wait times twice.
+ * Note: Use ledger() call to get data for each individual sfi class.
+ */
+ if (prev_lentry != task_ledgers.sfi_wait_times[i] &&
+ KERN_SUCCESS == ledger_get_entries(task->ledger,
+ task_ledgers.sfi_wait_times[i], &val_credit, &val_debit)) {
+ total_sfi_ledger_val += val_credit;
+ }
+ prev_lentry = task_ledgers.sfi_wait_times[i];
+ }
+
+#endif /* CONFIG_SCHED_SFI */
+ wait_state_info->total_wait_sfi_state_time = total_sfi_ledger_val;
+ *task_info_count = TASK_WAIT_STATE_INFO_COUNT;
+
+ break;
+ }
+ case TASK_VM_INFO_PURGEABLE_ACCOUNT:
+ {
+#if DEVELOPMENT || DEBUG
+ pvm_account_info_t acnt_info;
+
+ if (*task_info_count < PVM_ACCOUNT_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ if (task_info_out == NULL) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ acnt_info = (pvm_account_info_t) task_info_out;
+
+ error = vm_purgeable_account(task, acnt_info);
+
+ *task_info_count = PVM_ACCOUNT_INFO_COUNT;
+
+ break;
+#else /* DEVELOPMENT || DEBUG */
+ error = KERN_NOT_SUPPORTED;
+ break;
+#endif /* DEVELOPMENT || DEBUG */
+ }
+ case TASK_FLAGS_INFO:
+ {
+ task_flags_info_t flags_info;
+
+ if (*task_info_count < TASK_FLAGS_INFO_COUNT) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+
+ flags_info = (task_flags_info_t)task_info_out;
+
+ /* only publish the 64-bit flag of the task */
+ flags_info->flags = task->t_flags & TF_64B_ADDR;
+
+ *task_info_count = TASK_FLAGS_INFO_COUNT;
+ break;
+ }
+
+ case TASK_DEBUG_INFO_INTERNAL:
+ {
+#if DEVELOPMENT || DEBUG
+ task_debug_info_internal_t dbg_info;
+ if (*task_info_count < TASK_DEBUG_INFO_INTERNAL_COUNT) {
+ error = KERN_NOT_SUPPORTED;
+ break;
+ }
+
+ if (task_info_out == NULL) {
+ error = KERN_INVALID_ARGUMENT;
+ break;
+ }
+ dbg_info = (task_debug_info_internal_t) task_info_out;
+ dbg_info->ipc_space_size = 0;
+ if (task->itk_space){
+ dbg_info->ipc_space_size = task->itk_space->is_table_size;
+ }
+
+ error = KERN_SUCCESS;
+ *task_info_count = TASK_DEBUG_INFO_INTERNAL_COUNT;
+ break;
+#else /* DEVELOPMENT || DEBUG */
+ error = KERN_NOT_SUPPORTED;
+ break;
+#endif /* DEVELOPMENT || DEBUG */
+ }
+ default:
+ error = KERN_INVALID_ARGUMENT;
+ }
+
+ task_unlock(task);
+ return (error);
+}
+
+/*
+ * task_power_info
+ *
+ * Returns power stats for the task.
+ * Note: Called with task locked.
+ */
+void
+task_power_info_locked(
+ task_t task,
+ task_power_info_t info,
+ gpu_energy_data_t ginfo,
+ uint64_t *task_energy)
+{
+ thread_t thread;
+ ledger_amount_t tmp;
+
+ task_lock_assert_owned(task);
+
+ ledger_get_entries(task->ledger, task_ledgers.interrupt_wakeups,
+ (ledger_amount_t *)&info->task_interrupt_wakeups, &tmp);
+ ledger_get_entries(task->ledger, task_ledgers.platform_idle_wakeups,
+ (ledger_amount_t *)&info->task_platform_idle_wakeups, &tmp);
+
+ info->task_timer_wakeups_bin_1 = task->task_timer_wakeups_bin_1;
+ info->task_timer_wakeups_bin_2 = task->task_timer_wakeups_bin_2;
+
+ info->total_user = task->total_user_time;
+ info->total_system = task->total_system_time;
+
+ if (task_energy) {
+ *task_energy = task->task_energy;
+ }
+
+ if (ginfo) {
+ ginfo->task_gpu_utilisation = task->task_gpu_ns;
+ }
+
+ queue_iterate(&task->threads, thread, thread_t, task_threads) {
+ uint64_t tval;
+ spl_t x;
+
+ if (thread->options & TH_OPT_IDLE_THREAD)
+ continue;
+
+ x = splsched();
+ thread_lock(thread);
+
+ info->task_timer_wakeups_bin_1 += thread->thread_timer_wakeups_bin_1;
+ info->task_timer_wakeups_bin_2 += thread->thread_timer_wakeups_bin_2;
+
+ if (task_energy) {
+ *task_energy += ml_energy_stat(thread);
+ }
+
+ tval = timer_grab(&thread->user_timer);
+ info->total_user += tval;
+
+ tval = timer_grab(&thread->system_timer);
+ if (thread->precise_user_kernel_time) {
+ info->total_system += tval;
+ } else {
+ /* system_timer may represent either sys or user */
+ info->total_user += tval;
+ }
+
+ if (ginfo) {
+ ginfo->task_gpu_utilisation += ml_gpu_stat(thread);
+ }
+ thread_unlock(thread);
+ splx(x);
+ }
+}
+
+/*
+ * task_gpu_utilisation
+ *
+ * Returns the total gpu time used by the all the threads of the task
+ * (both dead and alive)
+ */
+uint64_t
+task_gpu_utilisation(
+ task_t task)
+{
+ uint64_t gpu_time = 0;
+ thread_t thread;
+
+ task_lock(task);
+ gpu_time += task->task_gpu_ns;
+
+ queue_iterate(&task->threads, thread, thread_t, task_threads) {
+ spl_t x;
+ x = splsched();
+ thread_lock(thread);
+ gpu_time += ml_gpu_stat(thread);
+ thread_unlock(thread);
+ splx(x);
+ }
+
+ task_unlock(task);
+ return gpu_time;
+}
+
+/*
+ * task_energy
+ *
+ * Returns the total energy used by the all the threads of the task
+ * (both dead and alive)
+ */
+uint64_t
+task_energy(
+ task_t task)
+{
+ uint64_t energy = 0;
+ thread_t thread;
+
+ task_lock(task);
+ energy += task->task_energy;
+
+ queue_iterate(&task->threads, thread, thread_t, task_threads) {
+ spl_t x;
+ x = splsched();
+ thread_lock(thread);
+ energy += ml_energy_stat(thread);
+ thread_unlock(thread);
+ splx(x);
+ }
+
+ task_unlock(task);
+ return energy;
+}
+
+kern_return_t
+task_purgable_info(
+ task_t task,
+ task_purgable_info_t *stats)
+{
+ if (task == TASK_NULL || stats == NULL)
+ return KERN_INVALID_ARGUMENT;
+ /* Take task reference */
+ task_reference(task);
+ vm_purgeable_stats((vm_purgeable_info_t)stats, task);
+ /* Drop task reference */
+ task_deallocate(task);
+ return KERN_SUCCESS;
+}
+
+void
+task_vtimer_set(
+ task_t task,
+ integer_t which)
+{
+ thread_t thread;
+ spl_t x;
projects / apple / xnu.git / blobdiff