xnu-4570.1.46.tar.gz

[apple/xnu.git] / osfmk / kern / task.h

diff --git a/osfmk/kern/task.h b/osfmk/kern/task.h
index c2a8d86a90720198f6ed5f7f685fafa2f81bce5d..847120f95aa8d4e0bf886b09d14f225ee82e0ef8 100644 (file)
--- a/osfmk/kern/task.h
+++ b/osfmk/kern/task.h
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2010, 2015 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -95,6 +95,12 @@
 #include <mach/mach_types.h>
 #include <sys/cdefs.h>
 
 #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>
 #ifdef MACH_KERNEL_PRIVATE
 
 #include <mach/boolean.h>


@@ -107,46 +113,20 @@
 #include <mach/vm_statistics.h>
 #include <machine/task.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>
 #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 <kern/thread.h>

+#include <mach/coalition.h>
+#include <stdatomic.h>

 
 #ifdef CONFIG_ATM
 #include <atm/atm_internal.h>
 
 #ifdef CONFIG_ATM
 #include <atm/atm_internal.h>


@@ -162,14 +142,12 @@ struct _cpu_time_qos_stats {
         uint64_t cpu_time_qos_user_interactive;
 };
 
         uint64_t cpu_time_qos_user_interactive;
 };
 

-#ifdef CONFIG_BANK

 #include <bank/bank_internal.h>
 #include <bank/bank_internal.h>

-#endif

 
 struct task {
        /* Synchronization/destruction information */
        decl_lck_mtx_data(,lock)                /* Task's lock */
 
 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 */
 
        boolean_t       active;         /* Task has not been terminated */
        boolean_t       halting;        /* Task is being halted */
 


@@ -208,6 +186,7 @@ struct task {
        /* Statistics */
        uint64_t                total_user_time;        /* terminated threads only */
        uint64_t                total_system_time;
        /* Statistics */
        uint64_t                total_user_time;        /* terminated threads only */
        uint64_t                total_system_time;

+       uint64_t                total_ptime;

        
        /* Virtual timers */
        uint32_t                vtimers;
        
        /* Virtual timers */
        uint32_t                vtimers;


@@ -253,19 +232,30 @@ struct task {
                uint32_t  p_switch;                        /* total processor switches */
                uint32_t  ps_switch;               /* total pset switches */
 
                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  
 #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) */
        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_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_64BitAddr(task)       \
         (((task)->t_flags & TF_64B_ADDR) != 0)


@@ -276,10 +266,39 @@ struct task {
 #define task_has_64BitData(task)    \
         (((task)->t_flags & TF_64B_DATA) != 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 */
 
        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 */
 
 #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 */
 


@@ -300,13 +319,16 @@ struct task {
        uint64_t rusage_cpu_perthr_interval;    /* Per-thread CPU limit interval */
        uint64_t rusage_cpu_deadline;
        thread_call_t rusage_cpu_callt;
        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_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 */
        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 */
 
 #if IMPORTANCE_INHERITANCE
        struct ipc_importance_task  *task_imp_base;     /* Base of IPC importance chain */


@@ -320,19 +342,29 @@ struct task {
 
        struct task_requested_policy requested_policy;
        struct task_effective_policy effective_policy;
 
        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.
         */
 
        /*
         * 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
         */
        /* 
         * The cpu_time_qos_stats fields are protected by the task lock
         */


@@ -342,6 +374,12 @@ struct task {
        uint32_t        task_timer_wakeups_bin_1;
        uint32_t        task_timer_wakeups_bin_2;
        uint64_t        task_gpu_ns;
        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 volatile VM objects owned by this task: */
        int             task_volatile_objects;


@@ -350,18 +388,38 @@ struct task {
        boolean_t       task_purgeable_disowning;
        boolean_t       task_purgeable_disowned;
 
        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 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(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)
 
 #define task_lock_try(task)            lck_mtx_try_lock(&(task)->lock)
 #define task_unlock(task)              lck_mtx_unlock(&(task)->lock)
 


@@ -377,10 +435,10 @@ extern void task_reference_internal(task_t task);
 extern uint32_t task_deallocate_internal(task_t task);
 #else
 #define task_reference_internal(task)          \
 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)         \
 
 #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)                                   \
 #endif
 
 #define task_reference(task)                                   \


@@ -407,6 +465,7 @@ extern void         init_task_ledgers(void);
 extern lck_attr_t      task_lck_attr;
 extern lck_grp_t       task_lck_grp;
 
 extern lck_attr_t      task_lck_attr;
 extern lck_grp_t       task_lck_grp;
 

+

 #else  /* MACH_KERNEL_PRIVATE */
 
 __BEGIN_DECLS
 #else  /* MACH_KERNEL_PRIVATE */
 
 __BEGIN_DECLS


@@ -415,6 +474,14 @@ extern task_t      current_task(void);
 
 extern void            task_reference(task_t   task);
 
 
 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 */
 __END_DECLS
 
 #endif /* MACH_KERNEL_PRIVATE */


@@ -436,6 +503,10 @@ extern kern_return_t       task_wait(
 extern kern_return_t   task_release(
                                                        task_t          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);
 /* Suspends a task by placing a hold on its threads */
 extern kern_return_t    task_pidsuspend(
                                                        task_t          task);


@@ -451,6 +522,14 @@ extern kern_return_t       task_send_trace_memory(
                                                        uint32_t        pid,
                                                        uint64_t        uniqueid);
 
                                                        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 */
 #if CONFIG_FREEZE
 
 /* Freeze a task's resident pages */


@@ -483,23 +562,34 @@ extern kern_return_t      task_terminate_internal(
 
 extern kern_return_t   task_create_internal(
                                                        task_t          parent_task,
 
 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,
                                                        boolean_t       inherit_memory,
                                                        boolean_t       is_64bit,

+                                                       uint32_t        flags,
+                                                       uint32_t        procflags,

                                                        task_t          *child_task);   /* OUT */
 
                                                        task_t          *child_task);   /* OUT */
 

-extern kern_return_t   task_importance(
+extern kern_return_t   task_info(

                                                        task_t                  task,
                                                        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,
 
 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_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_set(
                                        task_t          task,
                                        integer_t       which);


@@ -521,6 +611,10 @@ extern void                task_set_64bit(
                                        task_t          task,
                                        boolean_t       is64bit);
 
                                        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_backing_store_privileged(
                                        task_t          task);
 


@@ -535,23 +629,59 @@ extern int                get_task_numacts(
 
 extern int get_task_numactivethreads(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);
 /* 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 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 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);
 
 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_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 check_actforsig(task_t task, thread_t thread, int setast);
 


@@ -578,6 +708,8 @@ struct _task_ledger_indices {
        int internal;
        int iokit_mapped;
        int alternate_accounting;
        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 phys_footprint;
        int internal_compressed;
        int purgeable_volatile;


@@ -586,227 +718,58 @@ struct _task_ledger_indices {
        int purgeable_nonvolatile_compressed;
        int platform_idle_wakeups;
        int interrupt_wakeups;
        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;
        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;
 
 };
 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 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_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 */
 
 /* 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 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);
 #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 vm_map_t get_task_map(task_t);
 extern ledger_t        get_task_ledger(task_t);
 


@@ -816,6 +779,7 @@ 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);
 /* 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 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. */


@@ -823,6 +787,30 @@ extern task_suspension_token_t convert_port_to_task_suspension_token(ipc_port_t
 
 extern boolean_t task_suspension_notify(mach_msg_header_t *);
 
 
 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;
 #endif /* KERNEL_PRIVATE */
 
 extern task_t  kernel_task;


@@ -833,6 +821,9 @@ extern void         task_deallocate(
 extern void            task_name_deallocate(
                                        task_name_t             task_name);
 
 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
 extern void            task_suspension_token_deallocate(
                                        task_suspension_token_t token);
 __END_DECLS