/*
- * Copyright (c) 2000-2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2010, 2015 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <mach/mach_types.h>
#include <sys/cdefs.h>
+#ifdef XNU_KERNEL_PRIVATE
+#include <kern/kern_cdata.h>
+#include <mach/sfi_class.h>
+#include <kern/queue.h>
+#endif /* XNU_KERNEL_PRIVATE */
+
#ifdef MACH_KERNEL_PRIVATE
#include <mach/boolean.h>
#include <mach/vm_statistics.h>
#include <machine/task.h>
+#if MONOTONIC
+#include <machine/monotonic.h>
+#endif /* MONOTONIC */
+
#include <kern/cpu_data.h>
#include <kern/queue.h>
#include <kern/exception.h>
#include <kern/locks.h>
#include <security/_label.h>
#include <ipc/ipc_port.h>
-#endif /* MACH_KERNEL_PRIVATE */
-
-#ifdef XNU_KERNEL_PRIVATE
-
-#include <mach/sfi_class.h>
-
-/* defns for task->rsu_controldata */
-#define TASK_POLICY_CPU_RESOURCE_USAGE 0
-#define TASK_POLICY_WIREDMEM_RESOURCE_USAGE 1
-#define TASK_POLICY_VIRTUALMEM_RESOURCE_USAGE 2
-#define TASK_POLICY_DISK_RESOURCE_USAGE 3
-#define TASK_POLICY_NETWORK_RESOURCE_USAGE 4
-#define TASK_POLICY_POWER_RESOURCE_USAGE 5
-
-#define TASK_POLICY_RESOURCE_USAGE_COUNT 6
-
-#define TASK_POLICY_CPUMON_DISABLE 0xFF
-#define TASK_POLICY_CPUMON_DEFAULTS 0xFE
-
-/* Resource usage/low resource attributes */
-#define TASK_POLICY_RESOURCE_ATTRIBUTE_NONE 0x00
-#define TASK_POLICY_RESOURCE_ATTRIBUTE_THROTTLE 0x01
-#define TASK_POLICY_RESOURCE_ATTRIBUTE_SUSPEND 0x02
-#define TASK_POLICY_RESOURCE_ATTRIBUTE_TERMINATE 0x03
-#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_KQ 0x04
-#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_EXC 0x05
-#define TASK_POLICY_RESOURCE_ATTRIBUTE_DEFAULT TASK_POLICY_RESOURCE_ATTRIBUTE_NONE
-
-#endif /* XNU_KERNEL_PRIVATE */
-
-#ifdef MACH_KERNEL_PRIVATE
-
#include <kern/thread.h>
+#include <mach/coalition.h>
+#include <stdatomic.h>
#ifdef CONFIG_ATM
#include <atm/atm_internal.h>
uint64_t cpu_time_qos_user_interactive;
};
-#ifdef CONFIG_BANK
#include <bank/bank_internal.h>
-#endif
struct task {
/* Synchronization/destruction information */
decl_lck_mtx_data(,lock) /* Task's lock */
- uint32_t ref_count; /* Number of references to me */
+ _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 */
/* Statistics */
uint64_t total_user_time; /* terminated threads only */
uint64_t total_system_time;
+ uint64_t total_ptime;
/* Virtual timers */
uint32_t vtimers;
uint32_t p_switch; /* total processor switches */
uint32_t ps_switch; /* total pset switches */
- zinfo_usage_t tkm_zinfo; /* per-task, per-zone usage statistics */
-
#ifdef MACH_BSD
void *bsd_info;
#endif
+ 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)->t_flags & TF_64B_ADDR) != 0)
#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 CONFIG_COUNTERS || KPERF
+#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 */
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
-#if CONFIG_BANK
struct bank_task *bank_context; /* pointer to per task bank structure */
-#endif
#if IMPORTANCE_INHERITANCE
struct ipc_importance_task *task_imp_base; /* Base of IPC importance chain */
struct task_requested_policy requested_policy;
struct task_effective_policy effective_policy;
- struct task_pended_policy pended_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 */
- mem_notify_reserved :28; /* reserved for future use */
+ 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)));
- io_stat_info_t task_io_stats;
-
/*
* The cpu_time_qos_stats fields are protected by the task lock
*/
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;
boolean_t task_purgeable_disowning;
boolean_t task_purgeable_disowned;
- /* Coalition is set in task_create_internal and unset in task_deallocate_internal, so it can be referenced without the task lock. */
- coalition_t coalition; /* coalition this task belongs to */
- /* These fields are protected by coalition->lock, not the task lock. */
- queue_chain_t coalition_tasks; /* list of tasks in the coalition */
+ /*
+ * 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) lck_mtx_lock(&(task)->lock)
-#define task_lock_assert_owned(task) lck_mtx_assert(&(task)->lock, LCK_MTX_ASSERT_OWNED)
+#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)
extern uint32_t task_deallocate_internal(task_t task);
#else
#define task_reference_internal(task) \
- (void)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) \
extern lck_attr_t task_lck_attr;
extern lck_grp_t task_lck_grp;
+
#else /* MACH_KERNEL_PRIVATE */
__BEGIN_DECLS
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 */
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);
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_create_internal(
task_t parent_task,
- coalition_t parent_coalition,
+ 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);
+ 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);
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 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, thread_t, vm_map_t, boolean_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_max(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 kern_return_t task_set_phys_footprint_limit_internal(task_t, int, int *, boolean_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);
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_compressed;
int platform_idle_wakeups;
int interrupt_wakeups;
- int sfi_wait_times[MAX_SFI_CLASS_ID];
-#ifdef CONFIG_BANK
+#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;
-#endif
+ int physical_writes;
+ int logical_writes;
+ int energy_billed_to_me;
+ int energy_billed_to_others;
};
extern struct _task_ledger_indices task_ledgers;
-/* Begin task_policy */
-
-/* value */
-#define TASK_POLICY_DISABLE 0x0
-#define TASK_POLICY_ENABLE 0x1
-
-/* category */
-#define TASK_POLICY_INTERNAL 0x0
-#define TASK_POLICY_EXTERNAL 0x1
-#define TASK_POLICY_ATTRIBUTE 0x2
-
-/* for tracing */
-#define TASK_POLICY_TASK 0x4
-#define TASK_POLICY_THREAD 0x8
-
-/* flavors (also DBG_IMPORTANCE subclasses 0x20 - 0x3F) */
-
-/* internal or external, thread or task */
-#define TASK_POLICY_DARWIN_BG 0x21
-#define TASK_POLICY_IOPOL 0x22
-#define TASK_POLICY_IO 0x23
-#define TASK_POLICY_PASSIVE_IO 0x24
-
-/* internal, task only */
-#define TASK_POLICY_DARWIN_BG_IOPOL 0x27
-
-/* task-only attributes */
-#define TASK_POLICY_TAL 0x28
-#define TASK_POLICY_BOOST 0x29
-#define TASK_POLICY_ROLE 0x2A
-#define TASK_POLICY_SUPPRESSED_CPU 0x2B
-#define TASK_POLICY_TERMINATED 0x2C
-#define TASK_POLICY_NEW_SOCKETS_BG 0x2D
-#define TASK_POLICY_LOWPRI_CPU 0x2E
-#define TASK_POLICY_LATENCY_QOS 0x2F
-#define TASK_POLICY_THROUGH_QOS 0x30
-#define TASK_POLICY_WATCHERS_BG 0x31
-
-#define TASK_POLICY_SFI_MANAGED 0x34
-#define TASK_POLICY_ALL_SOCKETS_BG 0x37
-
-#define TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS 0x39 /* latency as value1, throughput as value2 */
-#define TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS 0x3A /* latency as value1, throughput as value2 */
-
-/* thread-only attributes */
-#define TASK_POLICY_PIDBIND_BG 0x32
-#define TASK_POLICY_WORKQ_BG 0x33
-#define TASK_POLICY_QOS 0x35
-#define TASK_POLICY_QOS_OVERRIDE 0x36
-#define TASK_POLICY_QOS_AND_RELPRIO 0x38 /* QoS as value1, relative priority as value2 */
-
-#define TASK_POLICY_MAX 0x3F
-
-/* The main entrance to task policy is this function */
-extern void proc_set_task_policy(task_t task, thread_t thread, int category, int flavor, int value);
-extern int proc_get_task_policy(task_t task, thread_t thread, int category, int flavor);
-
-/* For attributes that have two scalars as input/output */
-extern void proc_set_task_policy2(task_t task, thread_t thread, int category, int flavor, int value1, int value2);
-extern void proc_get_task_policy2(task_t task, thread_t thread, int category, int flavor, int *value1, int *value2);
-
-/* For use by kernel threads and others who don't hold a reference on the target thread */
-extern void proc_set_task_policy_thread(task_t task, uint64_t tid, int category, int flavor, int value);
-
-extern void proc_set_task_spawnpolicy(task_t task, int apptype, int qos_clamp,
- ipc_port_t * portwatch_ports, int portwatch_count);
-
-extern void task_set_main_thread_qos(task_t task, thread_t main_thread);
-
-/* IO Throttle tiers */
-#define THROTTLE_LEVEL_NONE -1
-#define THROTTLE_LEVEL_TIER0 0 /* IOPOL_NORMAL, IOPOL_DEFAULT, IOPOL_PASSIVE */
-
-#define THROTTLE_LEVEL_THROTTLED 1
-#define THROTTLE_LEVEL_TIER1 1 /* IOPOL_STANDARD */
-#define THROTTLE_LEVEL_TIER2 2 /* IOPOL_UTILITY */
-#define THROTTLE_LEVEL_TIER3 3 /* IOPOL_THROTTLE */
-
-#define THROTTLE_LEVEL_START 0
-#define THROTTLE_LEVEL_END 3
-
-#define THROTTLE_LEVEL_COMPRESSOR_TIER0 THROTTLE_LEVEL_TIER0
-#define THROTTLE_LEVEL_COMPRESSOR_TIER1 THROTTLE_LEVEL_TIER1
-#define THROTTLE_LEVEL_COMPRESSOR_TIER2 THROTTLE_LEVEL_TIER2
-
-#define THROTTLE_LEVEL_PAGEOUT_THROTTLED THROTTLE_LEVEL_TIER2
-#define THROTTLE_LEVEL_PAGEOUT_UNTHROTTLED THROTTLE_LEVEL_TIER1
-
-#if CONFIG_IOSCHED
-#define IOSCHED_METADATA_TIER THROTTLE_LEVEL_TIER1
-#endif /* CONFIG_IOSCHED */
-
-extern int proc_apply_workq_bgthreadpolicy(thread_t thread);
-extern int proc_restore_workq_bgthreadpolicy(thread_t thread);
-
-extern int proc_get_darwinbgstate(task_t task, uint32_t *flagsp);
-extern boolean_t proc_task_is_tal(task_t task);
-extern integer_t task_grab_latency_qos(task_t task);
-extern void task_policy_create(task_t task, int parent_boosted);
-extern void thread_policy_create(thread_t thread);
-
-/*
- * for IPC importance hooks into task policy
- */
-typedef struct task_pend_token {
- uint32_t tpt_update_sockets :1,
- tpt_update_timers :1,
- tpt_update_watchers :1,
- tpt_update_live_donor :1;
-} *task_pend_token_t;
-
-extern void task_policy_update_complete_unlocked(task_t task, thread_t thread, task_pend_token_t pend_token);
-extern void task_update_boost_locked(task_t task, boolean_t boost_active, task_pend_token_t pend_token);
-extern void task_set_boost_locked(task_t task, boolean_t boost_active);
-
-/*
- * Get effective policy
- * Only for use by relevant subsystem, should never be passed into a setter!
- */
-
-extern int proc_get_effective_task_policy(task_t task, int flavor);
-extern int proc_get_effective_thread_policy(thread_t thread, int flavor);
-
-/* temporary compatibility */
-int proc_setthread_saved_importance(thread_t thread, int importance);
-
-int proc_get_task_ruse_cpu(task_t task, uint32_t *policyp, uint8_t *percentagep, uint64_t *intervalp, uint64_t *deadlinep);
-int proc_set_task_ruse_cpu(task_t task, uint32_t policy, uint8_t percentage, uint64_t interval, uint64_t deadline, int cpumon_entitled);
-int proc_clear_task_ruse_cpu(task_t task, int cpumon_entitled);
-thread_t task_findtid(task_t, uint64_t);
-void set_thread_iotier_override(thread_t, int policy);
-
-boolean_t proc_thread_qos_add_override(task_t task, thread_t thread, uint64_t tid, int override_qos, boolean_t first_override_for_resource);
-boolean_t proc_thread_qos_remove_override(task_t task, thread_t thread, uint64_t tid);
-
-#define TASK_RUSECPU_FLAGS_PROC_LIMIT 0x01
-#define TASK_RUSECPU_FLAGS_PERTHR_LIMIT 0x02
-#define TASK_RUSECPU_FLAGS_DEADLINE 0x04
-#define TASK_RUSECPU_FLAGS_FATAL_CPUMON 0x08 /* CPU usage monitor violations are fatal */
-#define TASK_RUSECPU_FLAGS_FATAL_WAKEUPSMON 0x10 /* wakeups monitor violations are fatal */
-#define TASK_RUSECPU_FLAGS_PHYS_FOOTPRINT_EXCEPTION 0x20 /* exceeding physical footprint generates EXC_RESOURCE */
-
-/* BSD call back functions */
-extern int proc_apply_resource_actions(void * p, int type, int action);
-extern int proc_restore_resource_actions(void * p, int type, int action);
-extern int task_restore_resource_actions(task_t task, int type);
-
-extern int task_clear_cpuusage(task_t task, int cpumon_entitled);
+/* 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_importance_mark_donor(task_t task, boolean_t donating);
-extern void task_importance_mark_live_donor(task_t task, boolean_t donating);
-extern void task_importance_mark_receiver(task_t task, boolean_t receiving);
-extern void task_importance_mark_denap_receiver(task_t task, boolean_t denap);
-extern void task_importance_reset(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);
-#if IMPORTANCE_INHERITANCE
-
-extern boolean_t task_is_importance_donor(task_t task);
-extern boolean_t task_is_marked_importance_donor(task_t task);
-extern boolean_t task_is_marked_live_importance_donor(task_t task);
-
-extern boolean_t task_is_importance_receiver(task_t task);
-extern boolean_t task_is_marked_importance_receiver(task_t task);
-
-extern boolean_t task_is_importance_denap_receiver(task_t task);
-extern boolean_t task_is_marked_importance_denap_receiver(task_t task);
-
-extern boolean_t task_is_importance_receiver_type(task_t task);
-
-extern int task_importance_hold_watchport_assertion(task_t target_task, uint32_t count);
-extern int task_importance_hold_internal_assertion(task_t target_task, uint32_t count);
-extern int task_importance_drop_internal_assertion(task_t target_task, uint32_t count);
-
-extern int task_importance_hold_file_lock_assertion(task_t target_task, uint32_t count);
-extern int task_importance_drop_file_lock_assertion(task_t target_task, uint32_t count);
-
-extern int task_importance_hold_legacy_external_assertion(task_t target_task, uint32_t count);
-extern int task_importance_drop_legacy_external_assertion(task_t target_task, uint32_t count);
-
-#endif /* IMPORTANCE_INHERITANCE */
-
-extern boolean_t task_has_been_notified(task_t task, int pressurelevel);
-extern boolean_t task_used_for_purging(task_t task, int pressurelevel);
-extern void task_mark_has_been_notified(task_t task, int pressurelevel);
-extern void task_mark_used_for_purging(task_t task, int pressurelevel);
-extern void task_clear_has_been_notified(task_t task, int pressurelevel);
-extern void task_clear_used_for_purging(task_t task);
-extern int task_importance_estimate(task_t task);
-
-/*
- * This should only be used for debugging.
- * pid is stored in audit_token by set_security_token().
- */
-#define audit_token_pid_from_task(task) ((task)->audit_token.val[5])
-
+extern int task_pid(task_t task);
+extern boolean_t task_has_assertions(task_t task);
/* End task_policy */
-extern kern_return_t task_purge_volatile_memory(task_t task);
-
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);
/* 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 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 */
extern task_t kernel_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
projects / apple / xnu.git / blobdiff