xnu-7195.101.1.tar.gz

[apple/xnu.git] / bsd / sys / kern_memorystatus.h

diff --git a/bsd/sys/kern_memorystatus.h b/bsd/sys/kern_memorystatus.h
index c3f5cec27fb443547d31b435beb96545c11b5cac..8db45d65e0a24a57d06da0113b2bce73b5cc830d 100644 (file)
--- a/bsd/sys/kern_memorystatus.h
+++ b/bsd/sys/kern_memorystatus.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2006-2018 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * Copyright (c) 2006-2018 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in


@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.

- * 
+ *

  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,


@@ -22,18 +22,16 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
 #ifndef SYS_MEMORYSTATUS_H
 #define SYS_MEMORYSTATUS_H
 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
 #ifndef SYS_MEMORYSTATUS_H
 #define SYS_MEMORYSTATUS_H
 

-#include <stdint.h>

 #include <sys/time.h>
 #include <sys/time.h>

-#include <sys/proc.h>
-#include <sys/param.h>

 #include <mach_debug/zone_info.h>
 #include <mach_debug/zone_info.h>

+#include <sys/proc.h>

 
 #define MEMORYSTATUS_ENTITLEMENT "com.apple.private.memorystatus"
 
 
 #define MEMORYSTATUS_ENTITLEMENT "com.apple.private.memorystatus"
 


@@ -42,12 +40,12 @@
 #define JETSAM_PRIORITY_IDLE_HEAD                -2
 /* The value -1 is an alias to JETSAM_PRIORITY_DEFAULT */
 #define JETSAM_PRIORITY_IDLE                      0
 #define JETSAM_PRIORITY_IDLE_HEAD                -2
 /* The value -1 is an alias to JETSAM_PRIORITY_DEFAULT */
 #define JETSAM_PRIORITY_IDLE                      0

-#define JETSAM_PRIORITY_IDLE_DEFERRED            1 /* Keeping this around till all xnu_quick_tests can be moved away from it.*/
-#define JETSAM_PRIORITY_AGING_BAND1              JETSAM_PRIORITY_IDLE_DEFERRED
+#define JETSAM_PRIORITY_IDLE_DEFERRED             1 /* Keeping this around till all xnu_quick_tests can be moved away from it.*/
+#define JETSAM_PRIORITY_AGING_BAND1               JETSAM_PRIORITY_IDLE_DEFERRED

 #define JETSAM_PRIORITY_BACKGROUND_OPPORTUNISTIC  2
 #define JETSAM_PRIORITY_BACKGROUND_OPPORTUNISTIC  2

-#define JETSAM_PRIORITY_AGING_BAND2              JETSAM_PRIORITY_BACKGROUND_OPPORTUNISTIC
+#define JETSAM_PRIORITY_AGING_BAND2               JETSAM_PRIORITY_BACKGROUND_OPPORTUNISTIC

 #define JETSAM_PRIORITY_BACKGROUND                3
 #define JETSAM_PRIORITY_BACKGROUND                3

-#define JETSAM_PRIORITY_ELEVATED_INACTIVE        JETSAM_PRIORITY_BACKGROUND
+#define JETSAM_PRIORITY_ELEVATED_INACTIVE         JETSAM_PRIORITY_BACKGROUND

 #define JETSAM_PRIORITY_MAIL                      4
 #define JETSAM_PRIORITY_PHONE                     5
 #define JETSAM_PRIORITY_UI_SUPPORT                8
 #define JETSAM_PRIORITY_MAIL                      4
 #define JETSAM_PRIORITY_PHONE                     5
 #define JETSAM_PRIORITY_UI_SUPPORT                8


@@ -55,6 +53,7 @@
 #define JETSAM_PRIORITY_FOREGROUND               10
 #define JETSAM_PRIORITY_AUDIO_AND_ACCESSORY      12
 #define JETSAM_PRIORITY_CONDUCTOR                13
 #define JETSAM_PRIORITY_FOREGROUND               10
 #define JETSAM_PRIORITY_AUDIO_AND_ACCESSORY      12
 #define JETSAM_PRIORITY_CONDUCTOR                13

+#define JETSAM_PRIORITY_DRIVER_APPLE             15

 #define JETSAM_PRIORITY_HOME                     16
 #define JETSAM_PRIORITY_EXECUTIVE                17
 #define JETSAM_PRIORITY_IMPORTANT                18
 #define JETSAM_PRIORITY_HOME                     16
 #define JETSAM_PRIORITY_EXECUTIVE                17
 #define JETSAM_PRIORITY_IMPORTANT                18


@@ -69,6 +68,21 @@
 /* Compatibility */
 #define DEFAULT_JETSAM_PRIORITY                  18
 
 /* Compatibility */
 #define DEFAULT_JETSAM_PRIORITY                  18
 

+/*
+ * The deferral time used by default for apps and daemons in all aging
+ * policies except kJetsamAgingPolicySysProcsReclaimedFirst is
+ * DEFERRED_IDLE_EXIT_TIME_SECS.
+ *
+ * For kJetsamAgingPolicySysProcsReclaimedFirst,
+ *
+ * Daemons: The actual idle deferred time for the daemon is based on
+ * the relaunch behavior of the daemon. The relaunch behavior determines
+ * the scaling factor applied to DEFERRED_IDLE_EXIT_TIME_SECS. See
+ * kJetsamSysProcsIdleDelayTime* ratios defined in kern_memorystatus.c
+ *
+ * Apps: The apps are aged for DEFERRED_IDLE_EXIT_TIME_SECS factored
+ * by kJetsamAppsIdleDelayTimeRatio.
+ */

 #define DEFERRED_IDLE_EXIT_TIME_SECS             10
 
 #define KEV_MEMORYSTATUS_SUBCLASS                 3
 #define DEFERRED_IDLE_EXIT_TIME_SECS             10
 
 #define KEV_MEMORYSTATUS_SUBCLASS                 3


@@ -88,11 +102,17 @@ enum {
        kMemorystatusLevelCritical = 3
 };
 
        kMemorystatusLevelCritical = 3
 };
 

+#define KEV_DIRTYSTATUS_SUBCLASS                  4
+
+enum {
+       kDirtyStatusChangeNote = 1
+};
+

 typedef struct memorystatus_priority_entry {
        pid_t pid;
        int32_t priority;
        uint64_t user_data;
 typedef struct memorystatus_priority_entry {
        pid_t pid;
        int32_t priority;
        uint64_t user_data;

-       int32_t limit;  /* MB */
+       int32_t limit;  /* MB */

        uint32_t state;
 } memorystatus_priority_entry_t;
 
        uint32_t state;
 } memorystatus_priority_entry_t;
 


@@ -103,24 +123,24 @@ typedef struct memorystatus_priority_entry {
  * above has been in use for a while now. We'll have to deprecate it.
  *
  * To support new fields/properties, we will add a new structure with a
  * above has been in use for a while now. We'll have to deprecate it.
  *
  * To support new fields/properties, we will add a new structure with a

- * new version and a new size. 
+ * new version and a new size.

  */
  */

-#define MEMORYSTATUS_MPE_VERSION_1             1
+#define MEMORYSTATUS_MPE_VERSION_1              1

 
 

-#define MEMORYSTATUS_MPE_VERSION_1_SIZE                sizeof(struct memorystatus_properties_entry_v1)
+#define MEMORYSTATUS_MPE_VERSION_1_SIZE         sizeof(struct memorystatus_properties_entry_v1)

 
 

-typedef        struct memorystatus_properties_entry_v1 {
+typedef struct memorystatus_properties_entry_v1 {

        int version;
        pid_t pid;
        int32_t priority;
        int use_probability;
        uint64_t user_data;
        int version;
        pid_t pid;
        int32_t priority;
        int use_probability;
        uint64_t user_data;

-       int32_t limit;  /* MB */
+       int32_t limit;  /* MB */

        uint32_t state;
        uint32_t state;

-       char proc_name[MAXCOMLEN+1];
+       char proc_name[MAXCOMLEN + 1];

        char __pad1[3];
 } memorystatus_properties_entry_v1_t;
        char __pad1[3];
 } memorystatus_properties_entry_v1_t;

-       
+

 typedef struct memorystatus_kernel_stats {
        uint32_t free_pages;
        uint32_t active_pages;
 typedef struct memorystatus_kernel_stats {
        uint32_t free_pages;
        uint32_t active_pages;


@@ -138,9 +158,23 @@ typedef struct memorystatus_kernel_stats {
        uint64_t zone_map_size;
        uint64_t zone_map_capacity;
        uint64_t largest_zone_size;
        uint64_t zone_map_size;
        uint64_t zone_map_capacity;
        uint64_t largest_zone_size;

-       char     largest_zone_name[MACH_ZONE_NAME_MAX_LEN];
+       char     largest_zone_name[MACH_ZONE_NAME_MAX_LEN];

 } memorystatus_kernel_stats_t;
 
 } memorystatus_kernel_stats_t;
 

+typedef enum memorystatus_freeze_skip_reason {
+       kMemorystatusFreezeSkipReasonNone = 0,
+       kMemorystatusFreezeSkipReasonExcessSharedMemory = 1,
+       kMemorystatusFreezeSkipReasonLowPrivateSharedRatio = 2,
+       kMemorystatusFreezeSkipReasonNoCompressorSpace = 3,
+       kMemorystatusFreezeSkipReasonNoSwapSpace = 4,
+       kMemorystatusFreezeSkipReasonBelowMinPages = 5,
+       kMemorystatusFreezeSkipReasonLowProbOfUse = 6,
+       kMemorystatusFreezeSkipReasonOther = 7,
+       kMemorystatusFreezeSkipReasonOutOfBudget = 8,
+       kMemorystatusFreezeSkipReasonOutOfSlots = 9,
+       kMemorystatusFreezeSkipReasonDisabled = 10,
+       _kMemorystatusFreezeSkipReasonMax
+} memorystatus_freeze_skip_reason_t;

 /*
 ** This is a variable-length struct.
 ** Allocate a buffer of the size returned by the sysctl, cast to a memorystatus_snapshot_t *
 /*
 ** This is a variable-length struct.
 ** Allocate a buffer of the size returned by the sysctl, cast to a memorystatus_snapshot_t *


@@ -148,10 +182,11 @@ typedef struct memorystatus_kernel_stats {
 
 typedef struct jetsam_snapshot_entry {
        pid_t    pid;
 
 typedef struct jetsam_snapshot_entry {
        pid_t    pid;

-       char     name[(2*MAXCOMLEN)+1];
+       char     name[(2 * MAXCOMLEN) + 1];

        int32_t  priority;
        uint32_t state;
        uint32_t fds;
        int32_t  priority;
        uint32_t state;
        uint32_t fds;

+       memorystatus_freeze_skip_reason_t jse_freeze_skip_reason; /* why wasn't this process frozen? */

        uint8_t  uuid[16];
        uint64_t user_data;
        uint64_t killed;
        uint8_t  uuid[16];
        uint64_t user_data;
        uint64_t killed;


@@ -167,33 +202,66 @@ typedef struct jetsam_snapshot_entry {
        uint64_t jse_iokit_mapped_pages;
        uint64_t jse_page_table_pages;
        uint64_t jse_memory_region_count;
        uint64_t jse_iokit_mapped_pages;
        uint64_t jse_page_table_pages;
        uint64_t jse_memory_region_count;

-       uint64_t jse_gencount;                  /* memorystatus_thread generation counter */
-       uint64_t jse_starttime;                 /* absolute time when process starts */
-       uint64_t jse_killtime;                  /* absolute time when jetsam chooses to kill a process */
-       uint64_t jse_idle_delta;                /* time spent in idle band */
-       uint64_t jse_coalition_jetsam_id;       /* we only expose coalition id for COALITION_TYPE_JETSAM */
+       uint64_t jse_gencount;                  /* memorystatus_thread generation counter */
+       uint64_t jse_starttime;                 /* absolute time when process starts */
+       uint64_t jse_killtime;                  /* absolute time when jetsam chooses to kill a process */
+       uint64_t jse_idle_delta;                /* time spent in idle band */
+       uint64_t jse_coalition_jetsam_id;       /* we only expose coalition id for COALITION_TYPE_JETSAM */

        struct timeval64 cpu_time;
        uint64_t jse_thaw_count;
        struct timeval64 cpu_time;
        uint64_t jse_thaw_count;

+       uint64_t jse_frozen_to_swap_pages;

 } memorystatus_jetsam_snapshot_entry_t;
 
 typedef struct jetsam_snapshot {
 } memorystatus_jetsam_snapshot_entry_t;
 
 typedef struct jetsam_snapshot {

-       uint64_t snapshot_time;                 /* absolute time snapshot was initialized */
-       uint64_t notification_time;             /* absolute time snapshot was consumed */
-       uint64_t js_gencount;                   /* memorystatus_thread generation counter */
-       memorystatus_kernel_stats_t stats;      /* system stat when snapshot is initialized */
+       uint64_t snapshot_time;                 /* absolute time snapshot was initialized */
+       uint64_t notification_time;             /* absolute time snapshot was consumed */
+       uint64_t js_gencount;                   /* memorystatus_thread generation counter */
+       memorystatus_kernel_stats_t stats;      /* system stat when snapshot is initialized */

        size_t entry_count;
        memorystatus_jetsam_snapshot_entry_t entries[];
 } memorystatus_jetsam_snapshot_t;
 
        size_t entry_count;
        memorystatus_jetsam_snapshot_entry_t entries[];
 } memorystatus_jetsam_snapshot_t;
 

-typedef struct memorystatus_freeze_entry {
-       int32_t pid;
-       uint32_t flags;
-       uint32_t pages;
-} memorystatus_freeze_entry_t;
+typedef enum dirty_status_change_event_type {
+       kDirtyStatusChangedDirty = 0x0,
+       kDirtyStatusChangedClean = 0x1
+} dirty_status_change_event_type_t;
+
+typedef struct dirty_status_change_event {
+       pid_t    dsc_pid;
+       char     dsc_process_name[(2 * MAXCOMLEN) + 1];
+       dirty_status_change_event_type_t dsc_event_type;
+       uint64_t dsc_time;
+       uint64_t dsc_pages;
+       int32_t dsc_priority;
+} dirty_status_change_event_t;

 
 /* TODO - deprecate; see <rdar://problem/12969599> */
 #define kMaxSnapshotEntries 192
 
 
 /* TODO - deprecate; see <rdar://problem/12969599> */
 #define kMaxSnapshotEntries 192
 

+/*
+ * default jetsam snapshot support
+ */
+extern memorystatus_jetsam_snapshot_t *memorystatus_jetsam_snapshot;
+extern memorystatus_jetsam_snapshot_t *memorystatus_jetsam_snapshot_copy;
+#if CONFIG_FREEZE
+extern memorystatus_jetsam_snapshot_t *memorystatus_jetsam_snapshot_freezer;
+extern unsigned int memorystatus_jetsam_snapshot_freezer_max;
+extern unsigned int memorystatus_jetsam_snapshot_freezer_size;
+#endif /* CONFIG_FREEZE */
+extern unsigned int memorystatus_jetsam_snapshot_count;
+extern unsigned int memorystatus_jetsam_snapshot_copy_count;
+extern unsigned int memorystatus_jetsam_snapshot_max;
+extern unsigned int memorystatus_jetsam_snapshot_size;
+extern uint64_t memorystatus_jetsam_snapshot_last_timestamp;
+extern uint64_t memorystatus_jetsam_snapshot_timeout;
+#define memorystatus_jetsam_snapshot_list memorystatus_jetsam_snapshot->entries
+#define JETSAM_SNAPSHOT_TIMEOUT_SECS 30
+
+/* General memorystatus stuff */
+
+extern uint64_t memorystatus_sysprocs_idle_delay_time;
+extern uint64_t memorystatus_apps_idle_delay_time;
+

 /* State */
 #define kMemorystatusSuspended        0x01
 #define kMemorystatusFrozen           0x02
 /* State */
 #define kMemorystatusSuspended        0x01
 #define kMemorystatusFrozen           0x02


@@ -201,6 +269,7 @@ typedef struct memorystatus_freeze_entry {
 #define kMemorystatusTracked          0x08
 #define kMemorystatusSupportsIdleExit 0x10
 #define kMemorystatusDirty            0x20
 #define kMemorystatusTracked          0x08
 #define kMemorystatusSupportsIdleExit 0x10
 #define kMemorystatusDirty            0x20

+#define kMemorystatusAssertion        0x40

 
 /*
  * Jetsam exit reason definitions - related to memorystatus
 
 /*
  * Jetsam exit reason definitions - related to memorystatus


@@ -210,48 +279,53 @@ typedef struct memorystatus_freeze_entry {
  *     kMemorystatusKilled... Cause enum
  *     memorystatus_kill_cause_name[]
  */
  *     kMemorystatusKilled... Cause enum
  *     memorystatus_kill_cause_name[]
  */

-#define JETSAM_REASON_INVALID                                                          0
-#define JETSAM_REASON_GENERIC                                                          1
-#define JETSAM_REASON_MEMORY_HIGHWATER                                         2
-#define JETSAM_REASON_VNODE                                                                    3
-#define JETSAM_REASON_MEMORY_VMPAGESHORTAGE                                    4
-#define JETSAM_REASON_MEMORY_PROCTHRASHING                                     5
-#define JETSAM_REASON_MEMORY_FCTHRASHING                                       6
-#define JETSAM_REASON_MEMORY_PERPROCESSLIMIT                           7
-#define JETSAM_REASON_MEMORY_DISK_SPACE_SHORTAGE                       8
-#define JETSAM_REASON_MEMORY_IDLE_EXIT                                         9
-#define JETSAM_REASON_ZONE_MAP_EXHAUSTION                                      10
-#define JETSAM_REASON_MEMORY_VMCOMPRESSOR_THRASHING                    11
-#define JETSAM_REASON_MEMORY_VMCOMPRESSOR_SPACE_SHORTAGE       12
-
-#define JETSAM_REASON_MEMORYSTATUS_MAX JETSAM_REASON_MEMORY_VMCOMPRESSOR_SPACE_SHORTAGE
+#define JETSAM_REASON_INVALID                                                           0
+#define JETSAM_REASON_GENERIC                                                           1
+#define JETSAM_REASON_MEMORY_HIGHWATER                                          2
+#define JETSAM_REASON_VNODE                                                                     3
+#define JETSAM_REASON_MEMORY_VMPAGESHORTAGE                                     4
+#define JETSAM_REASON_MEMORY_PROCTHRASHING                                      5
+#define JETSAM_REASON_MEMORY_FCTHRASHING                                        6
+#define JETSAM_REASON_MEMORY_PERPROCESSLIMIT                            7
+#define JETSAM_REASON_MEMORY_DISK_SPACE_SHORTAGE                        8
+#define JETSAM_REASON_MEMORY_IDLE_EXIT                                          9
+#define JETSAM_REASON_ZONE_MAP_EXHAUSTION                                       10
+#define JETSAM_REASON_MEMORY_VMCOMPRESSOR_THRASHING                     11
+#define JETSAM_REASON_MEMORY_VMCOMPRESSOR_SPACE_SHORTAGE        12
+#define JETSAM_REASON_LOWSWAP                                   13
+#define JETSAM_REASON_MEMORYSTATUS_MAX  JETSAM_REASON_LOWSWAP

 
 /*
  * Jetsam exit reason definitions - not related to memorystatus
  */
 
 /*
  * Jetsam exit reason definitions - not related to memorystatus
  */

-#define JETSAM_REASON_CPULIMIT                 100
+#define JETSAM_REASON_CPULIMIT                  100

 
 /* Cause */
 enum {
 
 /* Cause */
 enum {

-       kMemorystatusInvalid                                                    = JETSAM_REASON_INVALID,
-       kMemorystatusKilled                                                             = JETSAM_REASON_GENERIC,
-       kMemorystatusKilledHiwat                                                = JETSAM_REASON_MEMORY_HIGHWATER,
-       kMemorystatusKilledVnodes                                               = JETSAM_REASON_VNODE,
-       kMemorystatusKilledVMPageShortage                               = JETSAM_REASON_MEMORY_VMPAGESHORTAGE,
-       kMemorystatusKilledProcThrashing                                = JETSAM_REASON_MEMORY_PROCTHRASHING,
-       kMemorystatusKilledFCThrashing                                  = JETSAM_REASON_MEMORY_FCTHRASHING,
-       kMemorystatusKilledPerProcessLimit                              = JETSAM_REASON_MEMORY_PERPROCESSLIMIT,
-       kMemorystatusKilledDiskSpaceShortage                    = JETSAM_REASON_MEMORY_DISK_SPACE_SHORTAGE,
-       kMemorystatusKilledIdleExit                                             = JETSAM_REASON_MEMORY_IDLE_EXIT,
-       kMemorystatusKilledZoneMapExhaustion                    = JETSAM_REASON_ZONE_MAP_EXHAUSTION,
-       kMemorystatusKilledVMCompressorThrashing                = JETSAM_REASON_MEMORY_VMCOMPRESSOR_THRASHING,
-       kMemorystatusKilledVMCompressorSpaceShortage    = JETSAM_REASON_MEMORY_VMCOMPRESSOR_SPACE_SHORTAGE,
+       kMemorystatusInvalid                                                    = JETSAM_REASON_INVALID,
+       kMemorystatusKilled                                                             = JETSAM_REASON_GENERIC,
+       kMemorystatusKilledHiwat                                                = JETSAM_REASON_MEMORY_HIGHWATER,
+       kMemorystatusKilledVnodes                                               = JETSAM_REASON_VNODE,
+       kMemorystatusKilledVMPageShortage                               = JETSAM_REASON_MEMORY_VMPAGESHORTAGE,
+       kMemorystatusKilledProcThrashing                                = JETSAM_REASON_MEMORY_PROCTHRASHING,
+       kMemorystatusKilledFCThrashing                                  = JETSAM_REASON_MEMORY_FCTHRASHING,
+       kMemorystatusKilledPerProcessLimit                              = JETSAM_REASON_MEMORY_PERPROCESSLIMIT,
+       kMemorystatusKilledDiskSpaceShortage                    = JETSAM_REASON_MEMORY_DISK_SPACE_SHORTAGE,
+       kMemorystatusKilledIdleExit                                             = JETSAM_REASON_MEMORY_IDLE_EXIT,
+       kMemorystatusKilledZoneMapExhaustion                    = JETSAM_REASON_ZONE_MAP_EXHAUSTION,
+       kMemorystatusKilledVMCompressorThrashing                = JETSAM_REASON_MEMORY_VMCOMPRESSOR_THRASHING,
+       kMemorystatusKilledVMCompressorSpaceShortage    = JETSAM_REASON_MEMORY_VMCOMPRESSOR_SPACE_SHORTAGE,
+       kMemorystatusKilledLowSwap                      = JETSAM_REASON_LOWSWAP,

 };
 
 };
 

-/* For backwards compatibility */
-#define kMemorystatusKilledDiagnostic          kMemorystatusKilledDiskSpaceShortage
-#define kMemorystatusKilledVMThrashing         kMemorystatusKilledVMCompressorThrashing
-#define JETSAM_REASON_MEMORY_VMTHRASHING       JETSAM_REASON_MEMORY_VMCOMPRESSOR_THRASHING
+/*
+ * For backwards compatibility
+ * Keeping these around for external users (e.g. ReportCrash, Ariadne).
+ * TODO: Remove once they stop using these.
+ */
+#define kMemorystatusKilledDiagnostic           kMemorystatusKilledDiskSpaceShortage
+#define kMemorystatusKilledVMThrashing          kMemorystatusKilledVMCompressorThrashing
+#define JETSAM_REASON_MEMORY_VMTHRASHING        JETSAM_REASON_MEMORY_VMCOMPRESSOR_THRASHING

 
 /* Memorystatus control */
 #define MEMORYSTATUS_BUFFERSIZE_MAX 65536
 
 /* Memorystatus control */
 #define MEMORYSTATUS_BUFFERSIZE_MAX 65536


@@ -267,7 +341,7 @@ int memorystatus_control(uint32_t command, int32_t pid, uint32_t flags, void *bu
 #define MEMORYSTATUS_CMD_GET_JETSAM_SNAPSHOT          3
 #define MEMORYSTATUS_CMD_GET_PRESSURE_STATUS          4
 #define MEMORYSTATUS_CMD_SET_JETSAM_HIGH_WATER_MARK   5    /* Set active memory limit = inactive memory limit, both non-fatal  */
 #define MEMORYSTATUS_CMD_GET_JETSAM_SNAPSHOT          3
 #define MEMORYSTATUS_CMD_GET_PRESSURE_STATUS          4
 #define MEMORYSTATUS_CMD_SET_JETSAM_HIGH_WATER_MARK   5    /* Set active memory limit = inactive memory limit, both non-fatal  */

-#define MEMORYSTATUS_CMD_SET_JETSAM_TASK_LIMIT       6    /* Set active memory limit = inactive memory limit, both fatal       */
+#define MEMORYSTATUS_CMD_SET_JETSAM_TASK_LIMIT        6    /* Set active memory limit = inactive memory limit, both fatal      */

 #define MEMORYSTATUS_CMD_SET_MEMLIMIT_PROPERTIES      7    /* Set memory limits plus attributes independently                  */
 #define MEMORYSTATUS_CMD_GET_MEMLIMIT_PROPERTIES      8    /* Get memory limits plus attributes                                        */
 #define MEMORYSTATUS_CMD_PRIVILEGED_LISTENER_ENABLE   9    /* Set the task's status as a privileged listener w.r.t memory notifications  */
 #define MEMORYSTATUS_CMD_SET_MEMLIMIT_PROPERTIES      7    /* Set memory limits plus attributes independently                  */
 #define MEMORYSTATUS_CMD_GET_MEMLIMIT_PROPERTIES      8    /* Get memory limits plus attributes                                        */
 #define MEMORYSTATUS_CMD_PRIVILEGED_LISTENER_ENABLE   9    /* Set the task's status as a privileged listener w.r.t memory notifications  */


@@ -275,19 +349,25 @@ int memorystatus_control(uint32_t command, int32_t pid, uint32_t flags, void *bu
 #define MEMORYSTATUS_CMD_AGGRESSIVE_JETSAM_LENIENT_MODE_ENABLE  11   /* Enable the 'lenient' mode for aggressive jetsam. See comments in kern_memorystatus.c near the top. */
 #define MEMORYSTATUS_CMD_AGGRESSIVE_JETSAM_LENIENT_MODE_DISABLE 12   /* Disable the 'lenient' mode for aggressive jetsam. */
 #define MEMORYSTATUS_CMD_GET_MEMLIMIT_EXCESS          13   /* Compute how much a process's phys_footprint exceeds inactive memory limit */
 #define MEMORYSTATUS_CMD_AGGRESSIVE_JETSAM_LENIENT_MODE_ENABLE  11   /* Enable the 'lenient' mode for aggressive jetsam. See comments in kern_memorystatus.c near the top. */
 #define MEMORYSTATUS_CMD_AGGRESSIVE_JETSAM_LENIENT_MODE_DISABLE 12   /* Disable the 'lenient' mode for aggressive jetsam. */
 #define MEMORYSTATUS_CMD_GET_MEMLIMIT_EXCESS          13   /* Compute how much a process's phys_footprint exceeds inactive memory limit */

-#define MEMORYSTATUS_CMD_ELEVATED_INACTIVEJETSAMPRIORITY_ENABLE        14 /* Set the inactive jetsam band for a process to JETSAM_PRIORITY_ELEVATED_INACTIVE */
-#define MEMORYSTATUS_CMD_ELEVATED_INACTIVEJETSAMPRIORITY_DISABLE       15 /* Reset the inactive jetsam band for a process to the default band (0)*/
+#define MEMORYSTATUS_CMD_ELEVATED_INACTIVEJETSAMPRIORITY_ENABLE         14 /* Set the inactive jetsam band for a process to JETSAM_PRIORITY_ELEVATED_INACTIVE */
+#define MEMORYSTATUS_CMD_ELEVATED_INACTIVEJETSAMPRIORITY_DISABLE        15 /* Reset the inactive jetsam band for a process to the default band (0)*/

 #define MEMORYSTATUS_CMD_SET_PROCESS_IS_MANAGED       16   /* (Re-)Set state on a process that marks it as (un-)managed by a system entity e.g. assertiond */
 #define MEMORYSTATUS_CMD_GET_PROCESS_IS_MANAGED       17   /* Return the 'managed' status of a process */
 #define MEMORYSTATUS_CMD_SET_PROCESS_IS_FREEZABLE     18   /* Is the process eligible for freezing? Apps and extensions can pass in FALSE to opt out of freezing, i.e.,
 #define MEMORYSTATUS_CMD_SET_PROCESS_IS_MANAGED       16   /* (Re-)Set state on a process that marks it as (un-)managed by a system entity e.g. assertiond */
 #define MEMORYSTATUS_CMD_GET_PROCESS_IS_MANAGED       17   /* Return the 'managed' status of a process */
 #define MEMORYSTATUS_CMD_SET_PROCESS_IS_FREEZABLE     18   /* Is the process eligible for freezing? Apps and extensions can pass in FALSE to opt out of freezing, i.e.,

-                                                              if they would prefer being jetsam'ed in the idle band to being frozen in an elevated band. */
+                                                           *  if they would prefer being jetsam'ed in the idle band to being frozen in an elevated band. */

 #define MEMORYSTATUS_CMD_GET_PROCESS_IS_FREEZABLE     19   /* Return the freezable state of a process. */
 
 #define MEMORYSTATUS_CMD_GET_PROCESS_IS_FREEZABLE     19   /* Return the freezable state of a process. */
 

-#if CONFIG_FREEZE
-#if DEVELOPMENT || DEBUG
-#define MEMORYSTATUS_CMD_FREEZER_CONTROL             20
-#endif /* DEVELOPMENT || DEBUG */
-#endif /* CONFIG_FREEZE */
+#define MEMORYSTATUS_CMD_FREEZER_CONTROL              20
+
+#define MEMORYSTATUS_CMD_GET_AGGRESSIVE_JETSAM_LENIENT_MODE      21   /* Query if the lenient mode for aggressive jetsam is enabled. */
+
+#define MEMORYSTATUS_CMD_INCREASE_JETSAM_TASK_LIMIT   22   /* Used by DYLD to increase the jetsam active and inactive limits, when using roots */
+
+#if PRIVATE
+#define MEMORYSTATUS_CMD_SET_TESTING_PID 23 /* Used by unit tests in the development kernel only. */
+#endif /* PRIVATE */
+
+#define MEMORYSTATUS_CMD_GET_PROCESS_IS_FROZEN 24 /* Check if the process is frozen. */

 
 /* Commands that act on a group of processes */
 #define MEMORYSTATUS_CMD_GRP_SET_PROPERTIES           100
 
 /* Commands that act on a group of processes */
 #define MEMORYSTATUS_CMD_GRP_SET_PROPERTIES           100


@@ -296,8 +376,8 @@ int memorystatus_control(uint32_t command, int32_t pid, uint32_t flags, void *bu
 /* Test commands */
 
 /* Trigger forced jetsam */
 /* Test commands */
 
 /* Trigger forced jetsam */

-#define MEMORYSTATUS_CMD_TEST_JETSAM           1000
-#define MEMORYSTATUS_CMD_TEST_JETSAM_SORT      1001
+#define MEMORYSTATUS_CMD_TEST_JETSAM            1000
+#define MEMORYSTATUS_CMD_TEST_JETSAM_SORT       1001

 
 /* Panic on jetsam options */
 typedef struct memorystatus_jetsam_panic_options {
 
 /* Panic on jetsam options */
 typedef struct memorystatus_jetsam_panic_options {


@@ -308,19 +388,25 @@ typedef struct memorystatus_jetsam_panic_options {
 #define MEMORYSTATUS_CMD_SET_JETSAM_PANIC_BITS        1002
 
 /* Select priority band sort order */
 #define MEMORYSTATUS_CMD_SET_JETSAM_PANIC_BITS        1002
 
 /* Select priority band sort order */

-#define JETSAM_SORT_NOSORT     0
-#define JETSAM_SORT_DEFAULT    1
+#define JETSAM_SORT_NOSORT      0
+#define JETSAM_SORT_DEFAULT     1

 
 #endif /* PRIVATE */
 
 /* memorystatus_control() flags */
 
 
 #endif /* PRIVATE */
 
 /* memorystatus_control() flags */
 

-#define MEMORYSTATUS_FLAGS_SNAPSHOT_ON_DEMAND          0x1     /* A populated snapshot buffer is returned on demand */
-#define MEMORYSTATUS_FLAGS_SNAPSHOT_AT_BOOT            0x2     /* Returns a snapshot with memstats collected at boot */
-#define MEMORYSTATUS_FLAGS_SNAPSHOT_COPY               0x4     /* Returns the previously populated snapshot created by the system */
-#define MEMORYSTATUS_FLAGS_GRP_SET_PRIORITY            0x8     /* Set jetsam priorities for a group of pids */
-#define MEMORYSTATUS_FLAGS_GRP_SET_PROBABILITY         0x10    /* Set probability of use for a group of processes */
+#define MEMORYSTATUS_FLAGS_SNAPSHOT_ON_DEMAND           0x1     /* A populated snapshot buffer is returned on demand */
+#define MEMORYSTATUS_FLAGS_SNAPSHOT_AT_BOOT             0x2     /* Returns a snapshot with memstats collected at boot */
+#define MEMORYSTATUS_FLAGS_SNAPSHOT_COPY                0x4     /* Returns the previously populated snapshot created by the system */
+#define MEMORYSTATUS_FLAGS_GRP_SET_PRIORITY             0x8     /* Set jetsam priorities for a group of pids */
+#define MEMORYSTATUS_FLAGS_GRP_SET_PROBABILITY          0x10    /* Set probability of use for a group of processes */
+
+#if PRIVATE
+#define MEMORYSTATUS_FLAGS_SET_TESTING_PID     0x20 /* Only used by xnu unit tests. */
+#define MEMORYSTATUS_FLAGS_UNSET_TESTING_PID   0x40 /* Only used by xnu unit tests. */
+#endif /* PRIVATE */

 
 

+#define MEMORYSTATUS_FLAGS_SNAPSHOT_FREEZER             0x80    /* A snapshot buffer containing app kills since last consumption */

 /*
  * For use with memorystatus_control:
  * MEMORYSTATUS_CMD_GET_JETSAM_SNAPSHOT
 /*
  * For use with memorystatus_control:
  * MEMORYSTATUS_CMD_GET_JETSAM_SNAPSHOT


@@ -341,17 +427,17 @@ typedef struct memorystatus_jetsam_panic_options {
  *     the snapshot entry_count is always 0.
  *
  *     Copy mode - this returns the previous snapshot
  *     the snapshot entry_count is always 0.
  *
  *     Copy mode - this returns the previous snapshot

- *     collected by the system. The current snaphshot
+ *      collected by the system. The current snaphshot

  *     might be only half populated.
  *
  * Snapshots are inherently racey between request
  * for buffer size and actual data compilation.
  *     might be only half populated.
  *
  * Snapshots are inherently racey between request
  * for buffer size and actual data compilation.

-*/
+ */

 
 /* These definitions are required for backwards compatibility */
 
 /* These definitions are required for backwards compatibility */

-#define MEMORYSTATUS_SNAPSHOT_ON_DEMAND                MEMORYSTATUS_FLAGS_SNAPSHOT_ON_DEMAND
-#define MEMORYSTATUS_SNAPSHOT_AT_BOOT          MEMORYSTATUS_FLAGS_SNAPSHOT_AT_BOOT
-#define MEMORYSTATUS_SNAPSHOT_COPY             MEMORYSTATUS_FLAGS_SNAPSHOT_COPY
+#define MEMORYSTATUS_SNAPSHOT_ON_DEMAND         MEMORYSTATUS_FLAGS_SNAPSHOT_ON_DEMAND
+#define MEMORYSTATUS_SNAPSHOT_AT_BOOT           MEMORYSTATUS_FLAGS_SNAPSHOT_AT_BOOT
+#define MEMORYSTATUS_SNAPSHOT_COPY              MEMORYSTATUS_FLAGS_SNAPSHOT_COPY

 
 /*
  * For use with memorystatus_control:
 
 /*
  * For use with memorystatus_control:


@@ -362,19 +448,30 @@ typedef struct memorystatus_priority_properties {
        uint64_t user_data;
 } memorystatus_priority_properties_t;
 
        uint64_t user_data;
 } memorystatus_priority_properties_t;
 

+/*
+ * Inform the kernel that setting the priority property is driven by assertions.
+ */
+#define MEMORYSTATUS_SET_PRIORITY_ASSERTION     0x1
+

 /*
  * For use with memorystatus_control:
  * MEMORYSTATUS_CMD_SET_MEMLIMIT_PROPERTIES
  * MEMORYSTATUS_CMD_GET_MEMLIMIT_PROPERTIES
  */
 typedef struct memorystatus_memlimit_properties {
 /*
  * For use with memorystatus_control:
  * MEMORYSTATUS_CMD_SET_MEMLIMIT_PROPERTIES
  * MEMORYSTATUS_CMD_GET_MEMLIMIT_PROPERTIES
  */
 typedef struct memorystatus_memlimit_properties {

-       int32_t memlimit_active;                /* jetsam memory limit (in MB) when process is active */
+       int32_t memlimit_active;                /* jetsam memory limit (in MB) when process is active */

        uint32_t memlimit_active_attr;
        uint32_t memlimit_active_attr;

-       int32_t memlimit_inactive;              /* jetsam memory limit (in MB) when process is inactive */
+       int32_t memlimit_inactive;              /* jetsam memory limit (in MB) when process is inactive */

        uint32_t memlimit_inactive_attr;
 } memorystatus_memlimit_properties_t;
 
        uint32_t memlimit_inactive_attr;
 } memorystatus_memlimit_properties_t;
 

-#define MEMORYSTATUS_MEMLIMIT_ATTR_FATAL       0x1     /* if set, exceeding the memlimit is fatal */
+typedef struct memorystatus_memlimit_properties2 {
+       memorystatus_memlimit_properties_t v1;
+       uint32_t memlimit_increase;             /* jetsam memory limit increase (in MB) for active and inactive states */
+       uint32_t memlimit_increase_bytes;       /* bytes used to determine the jetsam memory limit increase, for active and inactive states */
+} memorystatus_memlimit_properties2_t;
+
+#define MEMORYSTATUS_MEMLIMIT_ATTR_FATAL        0x1     /* if set, exceeding the memlimit is fatal */

 
 #ifdef XNU_KERNEL_PRIVATE
 
 
 #ifdef XNU_KERNEL_PRIVATE
 


@@ -414,33 +511,81 @@ typedef struct memorystatus_memlimit_properties {
 #define P_MEMSTAT_FREEZE_IGNORE        0x00000040 /* Process was evaluated by freezer and will be ignored till the next time it goes active and does something */
 #define P_MEMSTAT_PRIORITYUPDATED      0x00000080 /* Process had its jetsam priority updated */
 #define P_MEMSTAT_FOREGROUND           0x00000100 /* Process is in the FG jetsam band...unused??? */
 #define P_MEMSTAT_FREEZE_IGNORE        0x00000040 /* Process was evaluated by freezer and will be ignored till the next time it goes active and does something */
 #define P_MEMSTAT_PRIORITYUPDATED      0x00000080 /* Process had its jetsam priority updated */
 #define P_MEMSTAT_FOREGROUND           0x00000100 /* Process is in the FG jetsam band...unused??? */

-#define P_MEMSTAT_DIAG_SUSPENDED       0x00000200 /* ...unused??? */

 #define P_MEMSTAT_REFREEZE_ELIGIBLE    0x00000400 /* Process was once thawed i.e. its state was brought back from disk. It is now refreeze eligible.*/
 #define P_MEMSTAT_MANAGED              0x00000800 /* Process is managed by assertiond i.e. is either application or extension */
 #define P_MEMSTAT_INTERNAL             0x00001000 /* Process is a system-critical-not-be-jetsammed process i.e. launchd */
 #define P_MEMSTAT_FATAL_MEMLIMIT                  0x00002000   /* current fatal state of the process's memlimit */
 #define P_MEMSTAT_MEMLIMIT_ACTIVE_FATAL           0x00004000   /* if set, exceeding limit is fatal when the process is active   */
 #define P_MEMSTAT_MEMLIMIT_INACTIVE_FATAL         0x00008000   /* if set, exceeding limit is fatal when the process is inactive */
 #define P_MEMSTAT_REFREEZE_ELIGIBLE    0x00000400 /* Process was once thawed i.e. its state was brought back from disk. It is now refreeze eligible.*/
 #define P_MEMSTAT_MANAGED              0x00000800 /* Process is managed by assertiond i.e. is either application or extension */
 #define P_MEMSTAT_INTERNAL             0x00001000 /* Process is a system-critical-not-be-jetsammed process i.e. launchd */
 #define P_MEMSTAT_FATAL_MEMLIMIT                  0x00002000   /* current fatal state of the process's memlimit */
 #define P_MEMSTAT_MEMLIMIT_ACTIVE_FATAL           0x00004000   /* if set, exceeding limit is fatal when the process is active   */
 #define P_MEMSTAT_MEMLIMIT_INACTIVE_FATAL         0x00008000   /* if set, exceeding limit is fatal when the process is inactive */

-#define P_MEMSTAT_USE_ELEVATED_INACTIVE_BAND     0x00010000   /* if set, the process will go into this band & stay there when in the background instead
-                                                                 of the aging bands and/or the IDLE band. */
+#define P_MEMSTAT_USE_ELEVATED_INACTIVE_BAND      0x00010000   /* if set, the process will go into this band & stay there when in the background instead
+                                                               *  of the aging bands and/or the IDLE band. */
+#define P_MEMSTAT_PRIORITY_ASSERTION              0x00020000   /* jetsam priority is being driven by an assertion */
+#define P_MEMSTAT_FREEZE_CONSIDERED               0x00040000   /* This process has been considered for the freezer. */
+
+/*
+ * p_memstat_relaunch_flags holds
+ *      - relaunch behavior when jetsammed
+ */
+#define P_MEMSTAT_RELAUNCH_UNKNOWN      0x0
+#define P_MEMSTAT_RELAUNCH_LOW          0x1
+#define P_MEMSTAT_RELAUNCH_MED          0x2
+#define P_MEMSTAT_RELAUNCH_HIGH         0x4
+
+/*
+ * Checking the p_memstat_state almost always requires the proc_list_lock
+ * because the jetsam thread could be on the other core changing the state.
+ *
+ * App -- almost always managed by a system process. Always have dirty tracking OFF. Can include extensions too.
+ * System Processes -- not managed by anybody. Always have dirty tracking ON. Can include extensions (here) too.
+ */
+#define isApp(p)            ((p->p_memstat_state & P_MEMSTAT_MANAGED) || ! (p->p_memstat_dirty & P_DIRTY_TRACK))
+#define isSysProc(p)            ( ! (p->p_memstat_state & P_MEMSTAT_MANAGED) || (p->p_memstat_dirty & P_DIRTY_TRACK))

 
 

-extern void memorystatus_init(void) __attribute__((section("__TEXT, initcode")));
+#define MEMSTAT_BUCKET_COUNT (JETSAM_PRIORITY_MAX + 1)
+
+typedef struct memstat_bucket {
+       TAILQ_HEAD(, proc) list;
+       int count;
+       int relaunch_high_count;
+} memstat_bucket_t;
+
+extern memstat_bucket_t memstat_bucket[MEMSTAT_BUCKET_COUNT];
+
+/*
+ * Table that expresses the probability of a process
+ * being used in the next hour.
+ */
+typedef struct memorystatus_internal_probabilities {
+       char proc_name[MAXCOMLEN + 1];
+       int use_probability;
+} memorystatus_internal_probabilities_t;
+
+extern memorystatus_internal_probabilities_t *memorystatus_global_probabilities_table;
+extern size_t memorystatus_global_probabilities_size;
+
+
+extern void memorystatus_init(void);

 
 extern void memorystatus_init_at_boot_snapshot(void);
 
 extern int memorystatus_add(proc_t p, boolean_t locked);
 
 extern void memorystatus_init_at_boot_snapshot(void);
 
 extern int memorystatus_add(proc_t p, boolean_t locked);

-extern int memorystatus_update(proc_t p, int priority, uint64_t user_data, boolean_t effective,
-                              boolean_t update_memlimit, int32_t memlimit_active, boolean_t memlimit_active_is_fatal,
-                              int32_t memlimit_inactive, boolean_t memlimit_inactive_is_fatal);
-
-extern int memorystatus_remove(proc_t p, boolean_t locked);
+extern int memorystatus_update(proc_t p, int priority, uint64_t user_data, boolean_t is_assertion, boolean_t effective,
+    boolean_t update_memlimit, int32_t memlimit_active, boolean_t memlimit_active_is_fatal,
+    int32_t memlimit_inactive, boolean_t memlimit_inactive_is_fatal);
+
+/* Remove this process from jetsam bands for killing or freezing.
+ * The proc_list_lock is held by the caller.
+ * @param p: The process to remove.
+ * @return: 0 if successful. EAGAIN if the process can't be removed right now (because it's being frozen) or ESRCH.
+ */
+extern int memorystatus_remove(proc_t p);

 
 int memorystatus_update_inactive_jetsam_priority_band(pid_t pid, uint32_t opflags, int priority, boolean_t effective_now);
 
 int memorystatus_update_inactive_jetsam_priority_band(pid_t pid, uint32_t opflags, int priority, boolean_t effective_now);

-
+int memorystatus_relaunch_flags_update(proc_t p, int relaunch_flags);

 
 extern int memorystatus_dirty_track(proc_t p, uint32_t pcontrol);
 extern int memorystatus_dirty_set(proc_t p, boolean_t self, uint32_t pcontrol);
 
 extern int memorystatus_dirty_track(proc_t p, uint32_t pcontrol);
 extern int memorystatus_dirty_set(proc_t p, boolean_t self, uint32_t pcontrol);

-extern int memorystatus_dirty_get(proc_t p);
+extern int memorystatus_dirty_get(proc_t p, boolean_t locked);

 extern int memorystatus_dirty_clear(proc_t p, uint32_t pcontrol);
 
 extern int memorystatus_on_terminate(proc_t p);
 extern int memorystatus_dirty_clear(proc_t p, uint32_t pcontrol);
 
 extern int memorystatus_on_terminate(proc_t p);


@@ -463,6 +608,13 @@ void memorystatus_log_exception(const int max_footprint_mb, boolean_t memlimit_i
 void memorystatus_on_ledger_footprint_exceeded(int warning, boolean_t memlimit_is_active, boolean_t memlimit_is_fatal);
 void proc_memstat_terminated(proc_t p, boolean_t set);
 void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty, boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit);
 void memorystatus_on_ledger_footprint_exceeded(int warning, boolean_t memlimit_is_active, boolean_t memlimit_is_fatal);
 void proc_memstat_terminated(proc_t p, boolean_t set);
 void memorystatus_proc_flags_unsafe(void * v, boolean_t *is_dirty, boolean_t *is_dirty_tracked, boolean_t *allow_idle_exit);

+
+#if __arm64__
+void memorystatus_act_on_legacy_footprint_entitlement(proc_t p, boolean_t footprint_increase);
+void memorystatus_act_on_ios13extended_footprint_entitlement(proc_t p);
+void memorystatus_act_on_entitled_task_limit(proc_t p);
+#endif /* __arm64__ */
+

 #endif /* CONFIG_MEMORYSTATUS */
 
 int memorystatus_get_pressure_status_kdp(void);
 #endif /* CONFIG_MEMORYSTATUS */
 
 int memorystatus_get_pressure_status_kdp(void);


@@ -470,11 +622,8 @@ int memorystatus_get_pressure_status_kdp(void);
 #if CONFIG_JETSAM
 
 typedef enum memorystatus_policy {
 #if CONFIG_JETSAM
 
 typedef enum memorystatus_policy {

-       kPolicyDefault        = 0x0, 
+       kPolicyDefault        = 0x0,

        kPolicyMoreFree       = 0x1,
        kPolicyMoreFree       = 0x1,

-       kPolicyDiagnoseAll    = 0x2,
-       kPolicyDiagnoseFirst  = 0x4,
-       kPolicyDiagnoseActive = (kPolicyDiagnoseAll | kPolicyDiagnoseFirst),

 } memorystatus_policy_t;
 
 boolean_t memorystatus_kill_on_VM_page_shortage(boolean_t async);
 } memorystatus_policy_t;
 
 boolean_t memorystatus_kill_on_VM_page_shortage(boolean_t async);


@@ -487,48 +636,27 @@ void memorystatus_fast_jetsam_override(boolean_t enable_override);
 
 #endif /* CONFIG_JETSAM */
 
 
 #endif /* CONFIG_JETSAM */
 

+/* These are very verbose printfs(), enable with
+ * MEMORYSTATUS_DEBUG_LOG
+ */
+#if MEMORYSTATUS_DEBUG_LOG
+#define MEMORYSTATUS_DEBUG(cond, format, ...)      \
+do {                                              \
+if (cond) { printf(format, ##__VA_ARGS__); } \
+} while(0)
+#else
+#define MEMORYSTATUS_DEBUG(cond, format, ...)
+#endif
+

 boolean_t memorystatus_kill_on_zone_map_exhaustion(pid_t pid);
 boolean_t memorystatus_kill_on_VM_compressor_space_shortage(boolean_t async);
 void memorystatus_pages_update(unsigned int pages_avail);
 boolean_t memorystatus_kill_on_zone_map_exhaustion(pid_t pid);
 boolean_t memorystatus_kill_on_VM_compressor_space_shortage(boolean_t async);
 void memorystatus_pages_update(unsigned int pages_avail);

-

 boolean_t memorystatus_idle_exit_from_VM(void);
 boolean_t memorystatus_idle_exit_from_VM(void);

-
-
-#ifdef CONFIG_FREEZE
-
-#define FREEZE_PAGES_MIN   ( 8 * 1024 * 1024 / PAGE_SIZE)
-#define FREEZE_PAGES_MAX   (32 * 1024 * 1024 / PAGE_SIZE)
-
-#define FREEZE_SUSPENDED_THRESHOLD_DEFAULT 4
-#define FREEZE_PROCESSES_MAX              20
-
-#define FREEZE_DAILY_MB_MAX_DEFAULT      1024
-#define FREEZE_DEGRADATION_BUDGET_THRESHOLD    25 //degraded perf. when the daily budget left falls below this threshold percentage
-
-#define MAX_FROZEN_SHARED_MB_PERCENT 10 /* max shared MB calculated as percent of system task limit. */
-#define MAX_FROZEN_PROCESS_DEMOTIONS 2  /* max demotions of frozen processes into IDLE band done daily. */
-#define MIN_THAW_DEMOTION_THRESHOLD  5  /* min # of thaws required for a process to be safe from demotion. */
-#define MIN_THAW_REFREEZE_THRESHOLD  3  /* min # of global thaws needed for us to consider refreezing these processes. */
-
-typedef struct throttle_interval_t {
-       uint32_t mins;
-       uint32_t burst_multiple;
-       uint32_t pageouts;
-       uint32_t max_pageouts;
-       mach_timespec_t ts;
-} throttle_interval_t;
-
-extern boolean_t memorystatus_freeze_enabled;
-extern int memorystatus_freeze_wakeup;
-
-extern void memorystatus_freeze_init(void) __attribute__((section("__TEXT, initcode")));
-extern int  memorystatus_freeze_process_sync(proc_t p);
-
-#if DEVELOPMENT || DEBUG
-#define FREEZER_CONTROL_GET_STATUS     (1)
-#endif /* DEVELOPMENT || DEBUG */
-
-#endif /* CONFIG_FREEZE */
+proc_t memorystatus_get_first_proc_locked(unsigned int *bucket_index, boolean_t search);
+proc_t memorystatus_get_next_proc_locked(unsigned int *bucket_index, proc_t p, boolean_t search);
+void memorystatus_get_task_page_counts(task_t task, uint32_t *footprint, uint32_t *max_footprint_lifetime, uint32_t *purgeable_pages);
+void memorystatus_invalidate_idle_demotion_locked(proc_t p, boolean_t clean_state);
+void memorystatus_update_priority_locked(proc_t p, int priority, boolean_t head_insert, boolean_t skip_demotion_check);

 
 #if VM_PRESSURE_EVENTS
 
 
 #if VM_PRESSURE_EVENTS