X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/21362eb3e66fd2c787aee132bce100a44d71a99c..5ba3f43ea354af8ad55bea84372a2bc834d8757c:/osfmk/kern/task.h diff --git a/osfmk/kern/task.h b/osfmk/kern/task.h index 15ee4ff39..847120f95 100644 --- a/osfmk/kern/task.h +++ b/osfmk/kern/task.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2010, 2015 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -80,6 +80,13 @@ * improvements that they make and grant CSL redistribution rights. * */ +/* + * NOTICE: This file was modified by McAfee Research in 2004 to introduce + * support for mandatory and extensible security protections. This notice + * is included in support of clause 2.2 (b) of the Apple Public License, + * Version 2.0. + * Copyright (c) 2005 SPARTA, Inc. + */ #ifndef _KERN_TASK_H_ #define _KERN_TASK_H_ @@ -88,6 +95,12 @@ #include #include +#ifdef XNU_KERNEL_PRIVATE +#include +#include +#include +#endif /* XNU_KERNEL_PRIVATE */ + #ifdef MACH_KERNEL_PRIVATE #include @@ -97,47 +110,75 @@ #include #include #include +#include +#include + +#if MONOTONIC +#include +#endif /* MONOTONIC */ #include #include #include -#include +#include +#include +#include + #include +#include +#include + +#ifdef CONFIG_ATM +#include +#endif + +struct _cpu_time_qos_stats { + uint64_t cpu_time_qos_default; + uint64_t cpu_time_qos_maintenance; + uint64_t cpu_time_qos_background; + uint64_t cpu_time_qos_utility; + uint64_t cpu_time_qos_legacy; + uint64_t cpu_time_qos_user_initiated; + uint64_t cpu_time_qos_user_interactive; +}; -#include -#include +#include struct task { /* Synchronization/destruction information */ - decl_mutex_data(,lock) /* Task's lock */ - int ref_count; /* Number of references to me */ + decl_lck_mtx_data(,lock) /* Task's lock */ + _Atomic uint32_t ref_count; /* Number of references to me */ boolean_t active; /* Task has not been terminated */ + boolean_t halting; /* Task is being halted */ /* Miscellaneous */ vm_map_t map; /* Address space description */ - queue_chain_t pset_tasks; /* list of tasks assigned to pset */ + queue_chain_t tasks; /* global list of tasks */ void *user_data; /* Arbitrary data settable via IPC */ - int suspend_count; /* Internal scheduling only */ + +#if defined(CONFIG_SCHED_MULTIQ) + sched_group_t sched_group; +#endif /* defined(CONFIG_SCHED_MULTIQ) */ /* Threads in this task */ - queue_head_t threads; - int thread_count; - int active_thread_count; + queue_head_t threads; + + processor_set_t pset_hint; + struct affinity_space *affinity_space; - processor_set_t processor_set; /* processor set for new threads */ -#if MACH_HOST - boolean_t may_assign; /* can assigned pset be changed? */ - boolean_t assign_active; /* waiting for may_assign */ -#endif /* MACH_HOST */ + int thread_count; + uint32_t active_thread_count; + int suspend_count; /* Internal scheduling only */ /* User-visible scheduling information */ integer_t user_stop_count; /* outstanding stops */ - - task_role_t role; + integer_t legacy_stop_count; /* outstanding legacy stops */ integer_t priority; /* base priority for threads */ integer_t max_priority; /* maximum priority for threads */ + integer_t importance; /* priority offset (BSD 'nice' value) */ + /* Task security and audit tokens */ security_token_t sec_token; audit_token_t audit_token; @@ -145,20 +186,25 @@ struct task { /* Statistics */ uint64_t total_user_time; /* terminated threads only */ uint64_t total_system_time; - -#if MACH_PROF - boolean_t task_profiled; /* is task being profiled ? */ - struct prof_data *profil_buffer;/* profile struct if so */ -#endif /* MACH_PROF */ + uint64_t total_ptime; + + /* Virtual timers */ + uint32_t vtimers; /* IPC structures */ - decl_mutex_data(,itk_lock_data) + decl_lck_mtx_data(,itk_lock_data) struct ipc_port *itk_self; /* not a right, doesn't hold ref */ + struct ipc_port *itk_nself; /* not a right, doesn't hold ref */ struct ipc_port *itk_sself; /* a send right */ struct exception_action exc_actions[EXC_TYPES_COUNT]; /* a send right each valid element */ struct ipc_port *itk_host; /* a send right */ struct ipc_port *itk_bootstrap; /* a send right */ + struct ipc_port *itk_seatbelt; /* a send right */ + struct ipc_port *itk_gssd; /* yet another send right */ + struct ipc_port *itk_debug_control; /* send right for debugmode communications */ + struct ipc_port *itk_task_access; /* and another send right */ + struct ipc_port *itk_resume; /* a receive right to resume this task */ struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX]; /* all send rights */ @@ -166,15 +212,14 @@ struct task { /* Synchronizer ownership information */ queue_head_t semaphore_list; /* list of owned semaphores */ - queue_head_t lock_set_list; /* list of owned lock sets */ int semaphores_owned; /* number of semaphores owned */ - int lock_sets_owned; /* number of lock sets owned */ - /* Ledgers */ - struct ipc_port *wired_ledger_port; - struct ipc_port *paged_ledger_port; + ledger_t ledger; + unsigned int priv_flags; /* privilege resource flags */ #define VM_BACKING_STORE_PRIV 0x1 + + MACHINE_TASK integer_t faults; /* faults counter */ integer_t pageins; /* pageins counter */ @@ -183,37 +228,218 @@ struct task { integer_t messages_received; /* messages received counter */ integer_t syscalls_mach; /* mach system call counter */ integer_t syscalls_unix; /* unix system call counter */ - integer_t csw; /* context switch counter */ + uint32_t c_switch; /* total context switches */ + uint32_t p_switch; /* total processor switches */ + uint32_t ps_switch; /* total pset switches */ + #ifdef MACH_BSD void *bsd_info; #endif - struct shared_region_mapping *system_shared_region; - struct tws_hash *dynamic_working_set; - uint32_t taskFeatures[2]; /* Special feature for this task */ -#define tf64BitAddr 0x80000000 /* Task has 64-bit addressing */ -#define tf64BitData 0x40000000 /* Task has 64-bit data registers */ + kcdata_descriptor_t corpse_info; + uint64_t crashed_thread_id; + queue_chain_t corpse_tasks; +#ifdef CONFIG_MACF + struct label * crash_label; +#endif + struct vm_shared_region *shared_region; + volatile uint32_t t_flags; /* general-purpose task flags protected by task_lock (TL) */ +#define TF_NONE 0 +#define TF_64B_ADDR 0x00000001 /* task has 64-bit addressing */ +#define TF_64B_DATA 0x00000002 /* task has 64-bit data registers */ +#define TF_CPUMON_WARNING 0x00000004 /* task has at least one thread in CPU usage warning zone */ +#define TF_WAKEMON_WARNING 0x00000008 /* task is in wakeups monitor warning zone */ +#define TF_TELEMETRY (TF_CPUMON_WARNING | TF_WAKEMON_WARNING) /* task is a telemetry participant */ +#define TF_GPU_DENIED 0x00000010 /* task is not allowed to access the GPU */ +#define TF_CORPSE 0x00000020 /* task is a corpse */ +#define TF_PENDING_CORPSE 0x00000040 /* task corpse has not been reported yet */ +#define TF_CORPSE_FORK 0x00000080 /* task is a forked corpse */ +#define TF_LRETURNWAIT 0x00000100 /* task is waiting for fork/posix_spawn/exec to complete */ +#define TF_LRETURNWAITER 0x00000200 /* task is waiting for TF_LRETURNWAIT to get cleared */ +#define TF_PLATFORM 0x00000400 /* task is a platform binary */ + #define task_has_64BitAddr(task) \ - (((task)->taskFeatures[0] & tf64BitAddr) != 0) + (((task)->t_flags & TF_64B_ADDR) != 0) #define task_set_64BitAddr(task) \ - ((task)->taskFeatures[0] |= tf64BitAddr) + ((task)->t_flags |= TF_64B_ADDR) #define task_clear_64BitAddr(task) \ - ((task)->taskFeatures[0] &= ~tf64BitAddr) - + ((task)->t_flags &= ~TF_64B_ADDR) +#define task_has_64BitData(task) \ + (((task)->t_flags & TF_64B_DATA) != 0) + +#define task_is_a_corpse(task) \ + (((task)->t_flags & TF_CORPSE) != 0) + +#define task_set_corpse(task) \ + ((task)->t_flags |= TF_CORPSE) + +#define task_corpse_pending_report(task) \ + (((task)->t_flags & TF_PENDING_CORPSE) != 0) + +#define task_set_corpse_pending_report(task) \ + ((task)->t_flags |= TF_PENDING_CORPSE) + +#define task_clear_corpse_pending_report(task) \ + ((task)->t_flags &= ~TF_PENDING_CORPSE) + +#define task_is_a_corpse_fork(task) \ + (((task)->t_flags & TF_CORPSE_FORK) != 0) + + uint32_t t_procflags; /* general-purpose task flags protected by proc_lock (PL) */ +#define TPF_NONE 0 +#define TPF_DID_EXEC 0x00000001 /* task has been execed to a new task */ +#define TPF_EXEC_COPY 0x00000002 /* task is the new copy of an exec */ + +#define task_did_exec_internal(task) \ + (((task)->t_procflags & TPF_DID_EXEC) != 0) + +#define task_is_exec_copy_internal(task) \ + (((task)->t_procflags & TPF_EXEC_COPY) != 0) + + mach_vm_address_t all_image_info_addr; /* dyld __all_image_info */ + mach_vm_size_t all_image_info_size; /* section location and size */ + +#if KPERF +#define TASK_PMC_FLAG 0x1 /* Bit in "t_chud" signifying PMC interest */ +#define TASK_KPC_FORCED_ALL_CTRS 0x2 /* Bit in "t_chud" signifying KPC forced all counters */ + + uint32_t t_chud; /* CHUD flags, used for Shark */ +#endif + + boolean_t pidsuspended; /* pid_suspend called; no threads can execute */ + boolean_t frozen; /* frozen; private resident pages committed to swap */ + boolean_t changing_freeze_state; /* in the process of freezing or thawing */ + uint16_t policy_ru_cpu :4, + policy_ru_cpu_ext :4, + applied_ru_cpu :4, + applied_ru_cpu_ext :4; + uint8_t rusage_cpu_flags; + uint8_t rusage_cpu_percentage; /* Task-wide CPU limit percentage */ + uint64_t rusage_cpu_interval; /* Task-wide CPU limit interval */ + uint8_t rusage_cpu_perthr_percentage; /* Per-thread CPU limit percentage */ + uint64_t rusage_cpu_perthr_interval; /* Per-thread CPU limit interval */ + uint64_t rusage_cpu_deadline; + thread_call_t rusage_cpu_callt; +#if CONFIG_EMBEDDED + queue_head_t task_watchers; /* app state watcher threads */ + int num_taskwatchers; + int watchapplying; +#endif /* CONFIG_EMBEDDED */ + +#if CONFIG_ATM + struct atm_task_descriptor *atm_context; /* pointer to per task atm descriptor */ +#endif + struct bank_task *bank_context; /* pointer to per task bank structure */ + +#if IMPORTANCE_INHERITANCE + struct ipc_importance_task *task_imp_base; /* Base of IPC importance chain */ +#endif /* IMPORTANCE_INHERITANCE */ + + vm_extmod_statistics_data_t extmod_statistics; + +#if MACH_ASSERT + int8_t suspends_outstanding; /* suspends this task performed in excess of resumes */ +#endif + + struct task_requested_policy requested_policy; + struct task_effective_policy effective_policy; + + /* + * Can be merged with imp_donor bits, once the IMPORTANCE_INHERITANCE macro goes away. + */ + uint32_t low_mem_notified_warn :1, /* warning low memory notification is sent to the task */ + low_mem_notified_critical :1, /* critical low memory notification is sent to the task */ + purged_memory_warn :1, /* purgeable memory of the task is purged for warning level pressure */ + purged_memory_critical :1, /* purgeable memory of the task is purged for critical level pressure */ + low_mem_privileged_listener :1, /* if set, task would like to know about pressure changes before other tasks on the system */ + mem_notify_reserved :27; /* reserved for future use */ + + uint32_t memlimit_is_active :1, /* if set, use active attributes, otherwise use inactive attributes */ + memlimit_is_fatal :1, /* if set, exceeding current memlimit will prove fatal to the task */ + memlimit_active_exc_resource :1, /* if set, suppress exc_resource exception when task exceeds active memory limit */ + memlimit_inactive_exc_resource :1, /* if set, suppress exc_resource exception when task exceeds inactive memory limit */ + memlimit_attrs_reserved :28; /* reserved for future use */ + + io_stat_info_t task_io_stats; + uint64_t task_immediate_writes __attribute__((aligned(8))); + uint64_t task_deferred_writes __attribute__((aligned(8))); + uint64_t task_invalidated_writes __attribute__((aligned(8))); + uint64_t task_metadata_writes __attribute__((aligned(8))); + + /* + * The cpu_time_qos_stats fields are protected by the task lock + */ + struct _cpu_time_qos_stats cpu_time_qos_stats; + + /* Statistics accumulated for terminated threads from this task */ + uint32_t task_timer_wakeups_bin_1; + uint32_t task_timer_wakeups_bin_2; + uint64_t task_gpu_ns; + uint64_t task_energy; + +#if MONOTONIC + /* Read and written under task_lock */ + struct mt_task task_monotonic; +#endif /* MONOTONIC */ + + /* # of purgeable volatile VM objects owned by this task: */ + int task_volatile_objects; + /* # of purgeable but not volatile VM objects owned by this task: */ + int task_nonvolatile_objects; + boolean_t task_purgeable_disowning; + boolean_t task_purgeable_disowned; + + /* + * A task's coalition set is "adopted" in task_create_internal + * and unset in task_deallocate_internal, so each array member + * can be referenced without the task lock. + * Note: these fields are protected by coalition->lock, + * not the task lock. + */ + coalition_t coalition[COALITION_NUM_TYPES]; + queue_chain_t task_coalition[COALITION_NUM_TYPES]; + uint64_t dispatchqueue_offset; + +#if DEVELOPMENT || DEBUG + boolean_t task_unnested; + int task_disconnected_count; +#endif + +#if HYPERVISOR + void *hv_task_target; /* hypervisor virtual machine object associated with this task */ +#endif /* HYPERVISOR */ + +#if CONFIG_SECLUDED_MEMORY + boolean_t task_can_use_secluded_mem; + boolean_t task_could_use_secluded_mem; + boolean_t task_could_also_use_secluded_mem; +#endif /* CONFIG_SECLUDED_MEMORY */ + + queue_head_t io_user_clients; + uint32_t exec_token; }; -#define task_lock(task) mutex_lock(&(task)->lock) -#define task_lock_try(task) mutex_try(&(task)->lock) -#define task_unlock(task) mutex_unlock(&(task)->lock) +#define task_lock(task) lck_mtx_lock(&(task)->lock) +#define task_lock_assert_owned(task) LCK_MTX_ASSERT(&(task)->lock, LCK_MTX_ASSERT_OWNED) +#define task_lock_try(task) lck_mtx_try_lock(&(task)->lock) +#define task_unlock(task) lck_mtx_unlock(&(task)->lock) -#define itk_lock_init(task) mutex_init(&(task)->itk_lock_data, 0) -#define itk_lock(task) mutex_lock(&(task)->itk_lock_data) -#define itk_unlock(task) mutex_unlock(&(task)->itk_lock_data) +#define itk_lock_init(task) lck_mtx_init(&(task)->itk_lock_data, &ipc_lck_grp, &ipc_lck_attr) +#define itk_lock_destroy(task) lck_mtx_destroy(&(task)->itk_lock_data, &ipc_lck_grp) +#define itk_lock(task) lck_mtx_lock(&(task)->itk_lock_data) +#define itk_unlock(task) lck_mtx_unlock(&(task)->itk_lock_data) +#define TASK_REFERENCE_LEAK_DEBUG 0 + +#if TASK_REFERENCE_LEAK_DEBUG +extern void task_reference_internal(task_t task); +extern uint32_t task_deallocate_internal(task_t task); +#else #define task_reference_internal(task) \ - hw_atomic_add(&(task)->ref_count, 1) + (void)atomic_fetch_add_explicit(&(task)->ref_count, 1, memory_order_relaxed) #define task_deallocate_internal(task) \ - hw_atomic_sub(&(task)->ref_count, 1) + (atomic_fetch_sub_explicit(&task->ref_count, 1, memory_order_release) - 1) +#endif #define task_reference(task) \ MACRO_BEGIN \ @@ -230,9 +456,16 @@ extern kern_return_t kernel_task_create( /* Initialize task module */ extern void task_init(void); +/* coalition_init() calls this to initialize ledgers before task_init() */ +extern void init_task_ledgers(void); + #define current_task_fast() (current_thread()->task) #define current_task() current_task_fast() +extern lck_attr_t task_lck_attr; +extern lck_grp_t task_lck_grp; + + #else /* MACH_KERNEL_PRIVATE */ __BEGIN_DECLS @@ -241,6 +474,14 @@ extern task_t current_task(void); extern void task_reference(task_t task); +#define TF_NONE 0 +#define TF_LRETURNWAIT 0x00000100 /* task is waiting for fork/posix_spawn/exec to complete */ +#define TF_LRETURNWAITER 0x00000200 /* task is waiting for TF_LRETURNWAIT to get cleared */ + +#define TPF_NONE 0 +#define TPF_EXEC_COPY 0x00000002 /* task is the new copy of an exec */ + + __END_DECLS #endif /* MACH_KERNEL_PRIVATE */ @@ -253,12 +494,67 @@ __BEGIN_DECLS extern kern_return_t task_hold( task_t task); +/* Wait for task to stop running, either just to get off CPU or to cease being runnable */ +extern kern_return_t task_wait( + task_t task, + boolean_t until_not_runnable); + /* Release hold on all threads in a task */ extern kern_return_t task_release( task_t task); +/* Suspend/resume a task where the kernel owns the suspend count */ +extern kern_return_t task_suspend_internal( task_t task); +extern kern_return_t task_resume_internal( task_t task); + +/* Suspends a task by placing a hold on its threads */ +extern kern_return_t task_pidsuspend( + task_t task); +extern kern_return_t task_pidsuspend_locked( + task_t task); + +/* Resumes a previously paused task */ +extern kern_return_t task_pidresume( + task_t task); + +extern kern_return_t task_send_trace_memory( + task_t task, + uint32_t pid, + uint64_t uniqueid); + +#if DEVELOPMENT || DEBUG + +extern kern_return_t task_disconnect_page_mappings( + task_t task); +#endif + +extern void tasks_system_suspend(boolean_t suspend); + +#if CONFIG_FREEZE + +/* Freeze a task's resident pages */ +extern kern_return_t task_freeze( + task_t task, + uint32_t *purgeable_count, + uint32_t *wired_count, + uint32_t *clean_count, + uint32_t *dirty_count, + uint32_t dirty_budget, + boolean_t *shared, + boolean_t walk_only); + +/* Thaw a currently frozen task */ +extern kern_return_t task_thaw( + task_t task); + +#endif /* CONFIG_FREEZE */ + /* Halt all other threads in the current task */ -extern kern_return_t task_halt( +extern kern_return_t task_start_halt( + task_t task); + +/* Wait for other threads to halt and free halting task resources */ +extern void task_complete_halt( task_t task); extern kern_return_t task_terminate_internal( @@ -266,42 +562,254 @@ extern kern_return_t task_terminate_internal( extern kern_return_t task_create_internal( task_t parent_task, + coalition_t *parent_coalitions, boolean_t inherit_memory, + boolean_t is_64bit, + uint32_t flags, + uint32_t procflags, task_t *child_task); /* OUT */ -extern kern_return_t task_importance( +extern kern_return_t task_info( task_t task, - integer_t importance); + task_flavor_t flavor, + task_info_t task_info_out, + mach_msg_type_number_t *task_info_count); + +extern void task_power_info_locked( + task_t task, + task_power_info_t info, + gpu_energy_data_t gpu_energy, + task_power_info_v2_t infov2); + +extern uint64_t task_gpu_utilisation( + task_t task); + +extern uint64_t task_energy( + task_t task); + +extern uint64_t task_cpu_ptime( + task_t task); + +extern void task_vtimer_set( + task_t task, + integer_t which); + +extern void task_vtimer_clear( + task_t task, + integer_t which); + +extern void task_vtimer_update( + task_t task, + integer_t which, + uint32_t *microsecs); + +#define TASK_VTIMER_USER 0x01 +#define TASK_VTIMER_PROF 0x02 +#define TASK_VTIMER_RLIM 0x04 extern void task_set_64bit( task_t task, boolean_t is64bit); +extern void task_set_platform_binary( + task_t task, + boolean_t is_platform); + extern void task_backing_store_privileged( task_t task); -extern void task_working_set_disable( - task_t task); +extern void task_set_dyld_info( + task_t task, + mach_vm_address_t addr, + mach_vm_size_t size); /* Get number of activations in a task */ extern int get_task_numacts( task_t task); +extern int get_task_numactivethreads(task_t task); + +struct label; +extern kern_return_t task_collect_crash_info( + task_t task, +#if CONFIG_MACF + struct label *crash_label, +#endif + int is_corpse_fork); +void task_port_notify(mach_msg_header_t *msg); +void task_wait_till_threads_terminate_locked(task_t task); /* JMM - should just be temporary (implementation in bsd_kern still) */ extern void set_bsdtask_info(task_t,void *); extern vm_map_t get_task_map_reference(task_t); -extern vm_map_t swap_task_map(task_t, vm_map_t); +extern vm_map_t swap_task_map(task_t, thread_t, vm_map_t); extern pmap_t get_task_pmap(task_t); +extern uint64_t get_task_resident_size(task_t); +extern uint64_t get_task_compressed(task_t); +extern uint64_t get_task_resident_max(task_t); +extern uint64_t get_task_phys_footprint(task_t); +extern uint64_t get_task_phys_footprint_recent_max(task_t); +extern uint64_t get_task_phys_footprint_lifetime_max(task_t); +extern uint64_t get_task_phys_footprint_limit(task_t); +extern uint64_t get_task_purgeable_size(task_t); +extern uint64_t get_task_cpu_time(task_t); +extern uint64_t get_task_dispatchqueue_offset(task_t); +extern uint64_t get_task_dispatchqueue_serialno_offset(task_t); +extern uint64_t get_task_uniqueid(task_t task); +extern int get_task_version(task_t task); + +extern uint64_t get_task_internal(task_t); +extern uint64_t get_task_internal_compressed(task_t); +extern uint64_t get_task_purgeable_nonvolatile(task_t); +extern uint64_t get_task_purgeable_nonvolatile_compressed(task_t); +extern uint64_t get_task_iokit_mapped(task_t); +extern uint64_t get_task_alternate_accounting(task_t); +extern uint64_t get_task_alternate_accounting_compressed(task_t); +extern uint64_t get_task_memory_region_count(task_t); +extern uint64_t get_task_page_table(task_t); + +extern kern_return_t task_convert_phys_footprint_limit(int, int *); +extern kern_return_t task_set_phys_footprint_limit_internal(task_t, int, int *, boolean_t, boolean_t); +extern kern_return_t task_get_phys_footprint_limit(task_t task, int *limit_mb); + +/* Jetsam memlimit attributes */ +extern boolean_t task_get_memlimit_is_active(task_t task); +extern boolean_t task_get_memlimit_is_fatal(task_t task); +extern void task_set_memlimit_is_active(task_t task, boolean_t memlimit_is_active); +extern void task_set_memlimit_is_fatal(task_t task, boolean_t memlimit_is_fatal); +extern boolean_t task_has_triggered_exc_resource(task_t task, boolean_t memlimit_is_active); +extern void task_mark_has_triggered_exc_resource(task_t task, boolean_t memlimit_is_active); extern boolean_t is_kerneltask(task_t task); +extern boolean_t is_corpsetask(task_t task); + +extern kern_return_t check_actforsig(task_t task, thread_t thread, int setast); + +extern kern_return_t machine_task_get_state( + task_t task, + int flavor, + thread_state_t state, + mach_msg_type_number_t *state_count); + +extern kern_return_t machine_task_set_state( + task_t task, + int flavor, + thread_state_t state, + mach_msg_type_number_t state_count); + +extern void machine_task_terminate(task_t task); + +struct _task_ledger_indices { + int cpu_time; + int tkm_private; + int tkm_shared; + int phys_mem; + int wired_mem; + int internal; + int iokit_mapped; + int alternate_accounting; + int alternate_accounting_compressed; + int page_table; + int phys_footprint; + int internal_compressed; + int purgeable_volatile; + int purgeable_nonvolatile; + int purgeable_volatile_compressed; + int purgeable_nonvolatile_compressed; + int platform_idle_wakeups; + int interrupt_wakeups; +#if CONFIG_SCHED_SFI + int sfi_wait_times[MAX_SFI_CLASS_ID]; +#endif /* CONFIG_SCHED_SFI */ + int cpu_time_billed_to_me; + int cpu_time_billed_to_others; + int physical_writes; + int logical_writes; + int energy_billed_to_me; + int energy_billed_to_others; +}; +extern struct _task_ledger_indices task_ledgers; + +/* requires task to be unlocked, returns a referenced thread */ +thread_t task_findtid(task_t task, uint64_t tid); +int pid_from_task(task_t task); + +extern kern_return_t task_wakeups_monitor_ctl(task_t task, uint32_t *rate_hz, int32_t *flags); +extern kern_return_t task_cpu_usage_monitor_ctl(task_t task, uint32_t *flags); +extern void task_rollup_accounting_info(task_t new_task, task_t parent_task); +extern kern_return_t task_io_monitor_ctl(task_t task, uint32_t *flags); +extern void task_set_did_exec_flag(task_t task); +extern void task_clear_exec_copy_flag(task_t task); +extern boolean_t task_is_exec_copy(task_t); +extern boolean_t task_did_exec(task_t task); +extern boolean_t task_is_active(task_t task); +extern boolean_t task_is_halting(task_t task); +extern void task_clear_return_wait(task_t task); +extern void task_wait_to_return(void); +extern event_t task_get_return_wait_event(task_t task); + +extern void task_atm_reset(task_t task); +extern void task_bank_reset(task_t task); +extern void task_bank_init(task_t task); + +extern int task_pid(task_t task); +extern boolean_t task_has_assertions(task_t task); +/* End task_policy */ + +extern void task_set_gpu_denied(task_t task, boolean_t denied); +extern boolean_t task_is_gpu_denied(task_t task); + +extern queue_head_t * task_io_user_clients(task_t task); + +extern void task_copy_fields_for_exec(task_t dst_task, task_t src_task); #endif /* XNU_KERNEL_PRIVATE */ #ifdef KERNEL_PRIVATE extern void *get_bsdtask_info(task_t); +extern void *get_bsdthreadtask_info(thread_t); +extern void task_bsdtask_kill(task_t); extern vm_map_t get_task_map(task_t); +extern ledger_t get_task_ledger(task_t); + +extern boolean_t get_task_pidsuspended(task_t); +extern boolean_t get_task_frozen(task_t); + +/* Convert from a task to a port */ +extern ipc_port_t convert_task_to_port(task_t); +extern ipc_port_t convert_task_name_to_port(task_name_t); +extern ipc_port_t convert_task_inspect_to_port(task_inspect_t); +extern ipc_port_t convert_task_suspension_token_to_port(task_suspension_token_t task); + +/* Convert from a port (in this case, an SO right to a task's resume port) to a task. */ +extern task_suspension_token_t convert_port_to_task_suspension_token(ipc_port_t port); + +extern boolean_t task_suspension_notify(mach_msg_header_t *); + +#define TASK_WRITE_IMMEDIATE 0x1 +#define TASK_WRITE_DEFERRED 0x2 +#define TASK_WRITE_INVALIDATED 0x4 +#define TASK_WRITE_METADATA 0x8 +extern void task_update_logical_writes(task_t task, uint32_t io_size, int flags, void *vp); + +#if CONFIG_SECLUDED_MEMORY +extern void task_set_can_use_secluded_mem( + task_t task, + boolean_t can_use_secluded_mem); +extern void task_set_could_use_secluded_mem( + task_t task, + boolean_t could_use_secluded_mem); +extern void task_set_could_also_use_secluded_mem( + task_t task, + boolean_t could_also_use_secluded_mem); +extern boolean_t task_can_use_secluded_mem(task_t task); +extern boolean_t task_could_use_secluded_mem(task_t task); +#endif /* CONFIG_SECLUDED_MEMORY */ + +#if CONFIG_MACF +extern struct label *get_task_crash_label(task_t task); +#endif /* CONFIG_MACF */ #endif /* KERNEL_PRIVATE */ @@ -310,6 +818,14 @@ extern task_t kernel_task; extern void task_deallocate( task_t task); +extern void task_name_deallocate( + task_name_t task_name); + +extern void task_inspect_deallocate( + task_inspect_t task_inspect); + +extern void task_suspension_token_deallocate( + task_suspension_token_t token); __END_DECLS #endif /* _KERN_TASK_H_ */