/*
- * Copyright (c) 2010 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2010-2018 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
* 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.
- *
+ *
* 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,
* 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 _KERN_LEDGER_H_
#define _KERN_LEDGER_H_
-#include <mach/mach_types.h> /* ledger_t */
+#include <mach/mach_types.h> /* ledger_t */
-#define LEDGER_INFO 0
-#define LEDGER_ENTRY_INFO 1
-#define LEDGER_TEMPLATE_INFO 2
-#define LEDGER_LIMIT 3
+#ifdef MACH_KERNEL_PRIVATE
+#include <os/refcnt.h>
+#endif /* MACH_KERNEL_PRIVATE */
+
+#define LEDGER_INFO 0
+#define LEDGER_ENTRY_INFO 1
+#define LEDGER_TEMPLATE_INFO 2
+#define LEDGER_LIMIT 3
/* LEDGER_MAX_CMD always tracks the index of the last ledger command. */
-#define LEDGER_MAX_CMD LEDGER_LIMIT
+#define LEDGER_MAX_CMD LEDGER_LIMIT
-#define LEDGER_NAME_MAX 32
+#define LEDGER_NAME_MAX 32
struct ledger_info {
- char li_name[LEDGER_NAME_MAX];
- int64_t li_id;
- int64_t li_entries;
+ char li_name[LEDGER_NAME_MAX];
+ int64_t li_id;
+ int64_t li_entries;
};
struct ledger_template_info {
- char lti_name[LEDGER_NAME_MAX];
- char lti_group[LEDGER_NAME_MAX];
- char lti_units[LEDGER_NAME_MAX];
+ char lti_name[LEDGER_NAME_MAX];
+ char lti_group[LEDGER_NAME_MAX];
+ char lti_units[LEDGER_NAME_MAX];
+};
+
+#ifdef MACH_KERNEL_PRIVATE
+/*
+ * These definitions are only here to allow pmap.c to determine the expected
+ * size of a ledger at build time. Direct access to ledger fields or to
+ * ledger entries is prohibited.
+ */
+
+/*
+ * The explicit alignment is to ensure that atomic operations don't panic
+ * on ARM.
+ */
+struct ledger_entry {
+ volatile uint32_t le_flags;
+#define LEDGER_PERCENT_NONE UINT16_MAX
+ uint16_t le_warn_percent;
+ ledger_amount_t le_limit;
+ volatile ledger_amount_t le_credit __attribute__((aligned(8)));
+ volatile ledger_amount_t le_debit __attribute__((aligned(8)));
+ union {
+ struct {
+ /*
+ * XXX - the following two fields can go away if we move all of
+ * the refill logic into process policy
+ */
+ uint64_t le_refill_period;
+ uint64_t le_last_refill;
+ } le_refill;
+ struct {
+ ledger_amount_t le_lifetime_max; /* Process lifetime peak */
+#if CONFIG_LEDGER_INTERVAL_MAX
+ ledger_amount_t le_interval_max; /* Interval peak XXX better name needed */
+#endif
+ } _le_max;
+ } _le;
+} __attribute__((aligned(8)));
+
+struct ledger {
+ uint64_t l_id;
+ os_refcnt_t l_refs;
+ int32_t l_size;
+ struct ledger_template *l_template;
+ struct ledger_entry l_entries[0] __attribute__((aligned(8)));
};
+#endif /* MACH_KERNEL_PRIVATE */
struct ledger_entry_info {
- int64_t lei_balance;
- int64_t lei_credit;
- int64_t lei_debit;
- uint64_t lei_limit;
- uint64_t lei_refill_period; /* In nanoseconds */
- uint64_t lei_last_refill; /* Time since last refill */
+ int64_t lei_balance;
+ int64_t lei_credit;
+ int64_t lei_debit;
+ uint64_t lei_limit;
+ uint64_t lei_refill_period; /* In nanoseconds */
+ uint64_t lei_last_refill; /* Time since last refill */
};
struct ledger_limit_args {
- char lla_name[LEDGER_NAME_MAX];
- uint64_t lla_limit;
- uint64_t lla_refill_period;
+ char lla_name[LEDGER_NAME_MAX];
+ uint64_t lla_limit;
+ uint64_t lla_refill_period;
};
-#ifdef KERNEL_PRIVATE
+#ifdef KERNEL_PRIVATE
typedef struct ledger_template *ledger_template_t;
-#define LEDGER_VALID(ledger) (ledger != LEDGER_NULL)
+#define LEDGER_VALID(ledger) (ledger != LEDGER_NULL)
/* Action to take when a ledger goes into deficit */
-#define LEDGER_ACTION_IGNORE 0x0000
-#define LEDGER_ACTION_BLOCK 0x0010
-#define LEDGER_ACTION_CALLBACK 0x0020
-#define LEDGER_ACTION_MASK 0x00f0
+#define LEDGER_ACTION_IGNORE 0x0000
+#define LEDGER_ACTION_BLOCK 0x0010
+#define LEDGER_ACTION_CALLBACK 0x0020
+#define LEDGER_ACTION_MASK 0x00f0
/*
* Types of warnings that trigger a callback.
*/
-#define LEDGER_WARNING_ROSE_ABOVE 1
-#define LEDGER_WARNING_DIPPED_BELOW 2
+#define LEDGER_WARNING_ROSE_ABOVE 1
+#define LEDGER_WARNING_DIPPED_BELOW 2
typedef void (*ledger_callback_t)(int warning, const void * param0, const void *param1);
extern void ledger_init(void);
extern ledger_template_t ledger_template_create(const char *name);
+extern ledger_template_t ledger_template_copy(ledger_template_t template, const char *name);
extern void ledger_template_dereference(ledger_template_t template);
extern int ledger_entry_add(ledger_template_t template, const char *key,
const char *group, const char *units);
extern kern_return_t ledger_set_callback(ledger_template_t template, int entry,
- ledger_callback_t callback, const void *param0, const void *param1);
+ ledger_callback_t callback, const void *param0, const void *param1);
extern kern_return_t ledger_track_maximum(ledger_template_t template, int entry,
- int period_in_secs);
+ int period_in_secs);
extern kern_return_t ledger_panic_on_negative(ledger_template_t template,
- int entry);
+ int entry);
extern kern_return_t ledger_track_credit_only(ledger_template_t template,
- int entry);
+ int entry);
extern int ledger_key_lookup(ledger_template_t template, const char *key);
/* value of entry type */
-#define LEDGER_CREATE_ACTIVE_ENTRIES 0
-#define LEDGER_CREATE_INACTIVE_ENTRIES 1
+#define LEDGER_CREATE_ACTIVE_ENTRIES 0
+#define LEDGER_CREATE_INACTIVE_ENTRIES 1
extern ledger_t ledger_instantiate(ledger_template_t template, int entry_type);
+extern void ledger_template_complete(ledger_template_t template);
+extern void ledger_template_complete_secure_alloc(ledger_template_t template);
extern kern_return_t ledger_disable_callback(ledger_t ledger, int entry);
extern kern_return_t ledger_enable_callback(ledger_t ledger, int entry);
extern kern_return_t ledger_get_limit(ledger_t ledger, int entry,
- ledger_amount_t *limit);
+ ledger_amount_t *limit);
extern kern_return_t ledger_set_limit(ledger_t ledger, int entry,
- ledger_amount_t limit, uint8_t warn_level_percentage);
-extern kern_return_t ledger_get_maximum(ledger_t ledger, int entry,
- ledger_amount_t *max_observed_balance);
+ ledger_amount_t limit, uint8_t warn_level_percentage);
+#if CONFIG_LEDGER_INTERVAL_MAX
+extern kern_return_t ledger_get_interval_max(ledger_t ledger, int entry,
+ ledger_amount_t *max_interval_balance, int reset);
+#endif /* CONFIG_LEDGER_INTERVAL_MAX */
+extern kern_return_t ledger_get_lifetime_max(ledger_t ledger, int entry,
+ ledger_amount_t *max_lifetime_balance);
extern kern_return_t ledger_get_actions(ledger_t ledger, int entry, int *actions);
extern kern_return_t ledger_set_action(ledger_t ledger, int entry, int action);
extern kern_return_t ledger_get_period(ledger_t ledger, int entry,
uint64_t period);
extern kern_return_t ledger_disable_refill(ledger_t l, int entry);
extern kern_return_t ledger_entry_setactive(ledger_t ledger, int entry);
-extern void ledger_check_new_balance(ledger_t ledger, int entry);
+extern void ledger_check_new_balance(thread_t thread, ledger_t ledger, int entry);
extern kern_return_t ledger_credit(ledger_t ledger, int entry,
- ledger_amount_t amount);
+ ledger_amount_t amount);
+extern kern_return_t ledger_credit_nocheck(ledger_t ledger, int entry,
+ ledger_amount_t amount);
extern kern_return_t ledger_debit(ledger_t ledger, int entry,
- ledger_amount_t amount);
+ ledger_amount_t amount);
+extern kern_return_t ledger_debit_nocheck(ledger_t ledger, int entry,
+ ledger_amount_t amount);
+extern kern_return_t ledger_credit_thread(thread_t thread, ledger_t ledger,
+ int entry, ledger_amount_t amount);
+extern kern_return_t ledger_debit_thread(thread_t thread, ledger_t ledger,
+ int entry, ledger_amount_t amount);
extern kern_return_t ledger_zero_balance(ledger_t ledger, int entry);
extern kern_return_t ledger_get_entries(ledger_t ledger, int entry,
- ledger_amount_t *credit, ledger_amount_t *debit);
+ ledger_amount_t *credit, ledger_amount_t *debit);
extern kern_return_t ledger_get_balance(ledger_t ledger, int entry,
- ledger_amount_t *balance);
+ ledger_amount_t *balance);
extern kern_return_t ledger_reset_callback_state(ledger_t ledger, int entry);
extern kern_return_t ledger_disable_panic_on_negative(ledger_t ledger, int entry);
+extern kern_return_t ledger_get_panic_on_negative(ledger_t ledger, int entry, int *panic_on_negative);
extern kern_return_t ledger_rollup(ledger_t to_ledger, ledger_t from_ledger);
+extern kern_return_t ledger_rollup_entry(ledger_t to_ledger, ledger_t from_ledger, int entry);
extern void ledger_ast(thread_t thread);
-extern int ledger_reference_count(ledger_t ledger);
-extern kern_return_t ledger_reference(ledger_t ledger);
-extern kern_return_t ledger_dereference(ledger_t ledger);
-
-/* Per-pmap ledger operations */
-#define pmap_ledger_debit(p, e, a) ledger_debit((p)->ledger, e, a)
-#define pmap_ledger_credit(p, e, a) ledger_credit((p)->ledger, e, a)
+extern void ledger_reference(ledger_t ledger);
+extern void ledger_dereference(ledger_t ledger);
/* Support for ledger() syscall */
#ifdef LEDGER_DEBUG
#endif
extern int ledger_info(task_t task, struct ledger_info *info);
-extern int
+extern int
ledger_get_task_entry_info_multiple(task_t task, void **buf, int *len);
extern void
ledger_get_entry_info(ledger_t ledger, int entry,
- struct ledger_entry_info *lei);
+ struct ledger_entry_info *lei);
extern int ledger_template_info(void **buf, int *len);
#endif /* KERNEL_PRIVATE */
-#endif /* _KERN_LEDGER_H_ */
+#endif /* _KERN_LEDGER_H_ */
projects / apple / xnu.git / blobdiff