[apple/xnu.git] / osfmk / default_pager / default_pager.c

/*
 * Copyright (c) 2000-2006 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
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * 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,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * 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@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */

/*
 * 	Default pager.
 * 		Threads management.
 *		Requests handling.
 */

#include "default_pager_internal.h"
#include <default_pager/default_pager_object_server.h>
#include <kern/host.h>
#include <kern/ledger.h>
#include <mach/host_info.h>
#include <mach/host_priv.h>
#include <mach/vm_map.h>
#include <ipc/ipc_space.h>
#include <vm/vm_kern.h>
#include <vm/vm_map.h>
#include <vm/vm_protos.h>

char	my_name[] = "(default pager): ";

#if	DEFAULT_PAGER_DEBUG
int	debug_mask = 0;
#endif	/* DEFAULT_PAGER_DEBUG */

/*
 * Use 16 Kbyte stacks instead of the default 64K.
 * Use 4 Kbyte waiting stacks instead of the default 8K.
 */

vm_size_t	cthread_stack_size = 16 *1024;
extern vm_size_t cthread_wait_stack_size;

#ifndef MACH_KERNEL
unsigned long long	vm_page_mask;
int		vm_page_shift;
#endif

int 		norma_mk;

boolean_t	verbose;

/* task_t default_pager_self; */	/* Our task port. */
lck_mtx_t				dpt_lock;       /* lock for the dpt array struct */
default_pager_thread_t	**dpt_array;

memory_object_default_t default_pager_object; /* for memory_object_create. */

MACH_PORT_FACE default_pager_default_set; /* Port set for "default" thread. */
MACH_PORT_FACE default_pager_internal_set; /* Port set for internal objects. */
MACH_PORT_FACE default_pager_external_set; /* Port set for external objects. */

#define DEFAULT_PAGER_INTERNAL_COUNT	(4)


/* Memory created by default_pager_object_create should mostly be resident. */
#define DEFAULT_PAGER_EXTERNAL_COUNT	(2)

int	default_pager_internal_count = DEFAULT_PAGER_INTERNAL_COUNT;
/* Number of "internal" threads. */
int	default_pager_external_count = DEFAULT_PAGER_EXTERNAL_COUNT;
/* Number of "external" threads. */

/*
 * Forward declarations.
 */
boolean_t default_pager_notify_server(mach_msg_header_t *,
				      mach_msg_header_t *);
boolean_t default_pager_demux_object(mach_msg_header_t *,
				     mach_msg_header_t *);
boolean_t default_pager_demux_default(mach_msg_header_t *,
				      mach_msg_header_t *);
default_pager_thread_t *start_default_pager_thread(int, boolean_t);
void	default_pager(void);
void	default_pager_thread(void *);
void	default_pager_initialize(void);
boolean_t	dp_parse_argument(char *);	/* forward; */
unsigned int	d_to_i(char *);			/* forward; */

extern int vstruct_def_clshift;

struct global_stats global_stats;

/*
 * Initialize and Run the default pager
 */
void
default_pager(void)
{
	int			i, id;
	__unused static char here[] = "default_pager";
	default_pager_thread_t	dpt;
	kern_return_t kr;


	/*
	 * Give me space for the thread array and zero it.
	 */
	i = default_pager_internal_count + default_pager_external_count + 1;
	dpt_array = (default_pager_thread_t **)
	    kalloc(i * sizeof(default_pager_thread_t *));
	memset(dpt_array, 0, i * sizeof(default_pager_thread_t *));

	/* Setup my thread structure.  */
	id = 0;
	dpt.dpt_buffer = 0;
	dpt.dpt_internal = FALSE;
	dpt.dpt_initialized_p = TRUE;
	dpt_array[0] = &dpt;

	/*
	 * Now we create the threads that will actually
	 * manage objects.
	 */

	for (i = 0; i < default_pager_internal_count; i++) {
		dpt_array[id] = (default_pager_thread_t *)
				kalloc(sizeof (default_pager_thread_t));
		if (dpt_array[id] == NULL)
	 		Panic("alloc pager thread");
		kr = vm_allocate(kernel_map, &((dpt_array[id])->dpt_buffer),
				 vm_page_size << vstruct_def_clshift, VM_FLAGS_ANYWHERE);
		if (kr != KERN_SUCCESS)
			Panic("alloc thread buffer");
		kr = vm_map_wire(kernel_map, (dpt_array[id])->dpt_buffer, 
			((dpt_array[id])->dpt_buffer)
					+(vm_page_size << vstruct_def_clshift), 
			VM_PROT_DEFAULT,
			FALSE);
		if (kr != KERN_SUCCESS)
			Panic("wire thread buffer");
		(dpt_array[id])->dpt_internal = TRUE;
		(dpt_array[id])->dpt_initialized_p = TRUE;
		(dpt_array[id])->checked_out = FALSE;
		id++;
	}
	DPT_LOCK_INIT(dpt_lock);
}


/* simple utility: only works for 2^n */
int
local_log2(
	unsigned int n)
{
	register int	i = 0;

	if(n == 0) return 0;

	while ((n & 1) == 0) {
		i++;
		n >>= 1;
	}
	return i;
}


/* another simple utility, d_to_i(char*) supporting only decimal
 * and devoid of range checking; obscure name chosen deliberately
 * to avoid confusion with semantic-rich POSIX routines */
unsigned int
d_to_i(char * arg)
{
    unsigned int rval = 0;
    char ch;

    while ((ch = *arg++) && ch >= '0' && ch <= '9') {
	rval *= 10;
	rval += ch - '0';
    }
    return(rval);
}


/*
 * Check for non-disk-partition arguments of the form
 *	attribute=argument
 * returning TRUE if one if found
 */
boolean_t dp_parse_argument(char *av)
{
	char *rhs = av;
	__unused static char	here[] = "dp_parse_argument";

	/* Check for '-v' flag */

	if (av[0] == '-' && av[1] == 'v' && av[2] == 0) {
		verbose = TRUE ;
		return TRUE;
	}

	/*
	 * If we find a '=' followed by an argument in the string,
	 * check for known arguments
	 */
	while (*rhs && *rhs != '=')
		rhs++;
	if (*rhs && *++rhs) {
		/* clsize=N pages */
		if (strprefix(av,"cl")) {
			if (!bs_set_default_clsize(d_to_i(rhs)))
				dprintf(("Bad argument (%s) - ignored\n", av));
			return(TRUE);
		}
		/* else if strprefix(av,"another_argument")) {
			handle_another_argument(av);
			return(TRUE);
		} */
	}
	return(FALSE);
}

int
start_def_pager( __unused char *bs_device )
{
/*
	MACH_PORT_FACE		master_device_port;
*/
/*
	MACH_PORT_FACE		security_port;
	MACH_PORT_FACE		root_ledger_wired;
	MACH_PORT_FACE		root_ledger_paged;
*/
	__unused static char here[] = "main";


/*
	default_pager_host_port = ipc_port_make_send(realhost.host_priv_self);
	master_device_port = ipc_port_make_send(master_device_port);
	root_ledger_wired = ipc_port_make_send(root_wired_ledger_port);
	root_ledger_paged = ipc_port_make_send(root_paged_ledger_port);
	security_port = ipc_port_make_send(realhost.host_security_self);
*/


#if NORMA_VM
	norma_mk = 1;
#else
	norma_mk = 0;
#endif


	/* setup read buffers, etc */
	default_pager_initialize();

#ifndef MACH_KERNEL	
	default_pager();
#endif

	/* start the backing store monitor, it runs on a callout thread */
	default_pager_backing_store_monitor_callout = 
		thread_call_allocate(default_pager_backing_store_monitor, NULL);
	if (!default_pager_backing_store_monitor_callout)
		panic("can't start backing store monitor thread");
	thread_call_enter(default_pager_backing_store_monitor_callout);
	
	return (0);
}

kern_return_t
default_pager_info(
	memory_object_default_t	pager,
	default_pager_info_t	*infop)
{
	uint64_t	pages_total, pages_free;

	if (pager != default_pager_object)
		return KERN_INVALID_ARGUMENT; 

	bs_global_info(&pages_total, &pages_free);

	infop->dpi_total_space = (vm_size_t) ptoa_64(pages_total);
	infop->dpi_free_space = (vm_size_t) ptoa_64(pages_free);
	infop->dpi_page_size = vm_page_size;

	return KERN_SUCCESS;
}


kern_return_t
default_pager_info_64(
	memory_object_default_t	pager,
	default_pager_info_64_t	*infop)
{
	uint64_t	pages_total, pages_free;

	if (pager != default_pager_object)
		return KERN_INVALID_ARGUMENT; 

	bs_global_info(&pages_total, &pages_free);

	infop->dpi_total_space = ptoa_64(pages_total);
	infop->dpi_free_space = ptoa_64(pages_free);
	infop->dpi_page_size = vm_page_size;
	infop->dpi_flags = 0;
	if (dp_encryption_inited && dp_encryption == TRUE) {
		infop->dpi_flags |= DPI_ENCRYPTED;
	}

	return KERN_SUCCESS;
}

lck_grp_t		default_pager_lck_grp;
lck_grp_attr_t	default_pager_lck_grp_attr;
lck_attr_t		default_pager_lck_attr;


void
default_pager_initialize(void)
{
	kern_return_t		kr;
	__unused static char	here[] = "default_pager_initialize";

	lck_grp_attr_setdefault(&default_pager_lck_grp_attr);
	lck_grp_init(&default_pager_lck_grp, "default_pager", &default_pager_lck_grp_attr);
	lck_attr_setdefault(&default_pager_lck_attr);	

	/*
	 * Vm variables.
	 */
#ifndef MACH_KERNEL
	vm_page_mask = vm_page_size - 1;
	assert((unsigned int) vm_page_size == vm_page_size);
	vm_page_shift = local_log2((unsigned int) vm_page_size);
#endif

	/*
	 * List of all vstructs.
	 */
	vstruct_zone = zinit(sizeof(struct vstruct),
			     10000 * sizeof(struct vstruct),
			     8192, "vstruct zone");
	zone_change(vstruct_zone, Z_CALLERACCT, FALSE);
	zone_change(vstruct_zone, Z_NOENCRYPT, TRUE);

	VSL_LOCK_INIT();
	queue_init(&vstruct_list.vsl_queue);
	vstruct_list.vsl_count = 0;

	VSTATS_LOCK_INIT(&global_stats.gs_lock);

	bs_initialize();

	/*
	 * Exported DMM port.
	 */
	default_pager_object = ipc_port_alloc_kernel();


	/*
	 * Export pager interfaces.
	 */
#ifdef	USER_PAGER
	if ((kr = netname_check_in(name_server_port, "UserPager",
				   default_pager_self,
				   default_pager_object))
	    != KERN_SUCCESS) {
		dprintf(("netname_check_in returned 0x%x\n", kr));
		exit(1);
	}
#else	/* USER_PAGER */
	{
		unsigned int clsize;
		memory_object_default_t dmm;

		dmm = default_pager_object;
		assert((unsigned int) vm_page_size == vm_page_size);
		clsize = ((unsigned int) vm_page_size << vstruct_def_clshift);
		kr = host_default_memory_manager(host_priv_self(), &dmm, clsize);
		if ((kr != KERN_SUCCESS) ||
		    (dmm != MEMORY_OBJECT_DEFAULT_NULL))
			Panic("default memory manager");

	}
#endif	/* USER_PAGER */


}
Commit	Line	Data
1c79356b	1	/*
2d21ac55	2	* Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
1c79356b	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* @OSF_COPYRIGHT@
	30	*/
1c79356b A	31	/*
	32	* Mach Operating System
	33	* Copyright (c) 1991,1990,1989 Carnegie Mellon University
	34	* All Rights Reserved.
	35	*
	36	* Permission to use, copy, modify and distribute this software and its
	37	* documentation is hereby granted, provided that both the copyright
	38	* notice and this permission notice appear in all copies of the
	39	* software, derivative works or modified versions, and any portions
	40	* thereof, and that both notices appear in supporting documentation.
	41	*
	42	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	43	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	44	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	45	*
	46	* Carnegie Mellon requests users of this software to return to
	47	*
	48	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	49	* School of Computer Science
	50	* Carnegie Mellon University
	51	* Pittsburgh PA 15213-3890
	52	*
	53	* any improvements or extensions that they make and grant Carnegie Mellon
	54	* the rights to redistribute these changes.
	55	*/
	56
	57	/*
	58	* Default pager.
	59	* Threads management.
	60	* Requests handling.
	61	*/
	62
	63	#include "default_pager_internal.h"
91447636	64	#include <default_pager/default_pager_object_server.h>
1c79356b A	65	#include <kern/host.h>
	66	#include <kern/ledger.h>
	67	#include <mach/host_info.h>
91447636 A	68	#include <mach/host_priv.h>
91447636 A	69	#include <mach/vm_map.h>
1c79356b A	70	#include <ipc/ipc_space.h>
1c79356b A	71	#include <vm/vm_kern.h>
91447636 A	72	#include <vm/vm_map.h>
91447636 A	73	#include <vm/vm_protos.h>
1c79356b A	74
	75	char my_name[] = "(default pager): ";
	76
	77	#if DEFAULT_PAGER_DEBUG
	78	int debug_mask = 0;
	79	#endif /* DEFAULT_PAGER_DEBUG */
	80
	81	/*
	82	* Use 16 Kbyte stacks instead of the default 64K.
	83	* Use 4 Kbyte waiting stacks instead of the default 8K.
	84	*/
	85
	86	vm_size_t cthread_stack_size = 16 *1024;
	87	extern vm_size_t cthread_wait_stack_size;
	88
b0d623f7	89	#ifndef MACH_KERNEL
1c79356b A	90	unsigned long long vm_page_mask;
1c79356b A	91	int vm_page_shift;
b0d623f7	92	#endif
1c79356b A	93
	94	int norma_mk;
	95
	96	boolean_t verbose;
	97
	98	/* task_t default_pager_self; / / Our task port. */
b0d623f7	99	lck_mtx_t dpt_lock; /* lock for the dpt array struct */
1c79356b A	100	default_pager_thread_t **dpt_array;
1c79356b A	101
0b4e3aa0 A	102	memory_object_default_t default_pager_object; /* for memory_object_create. */
0b4e3aa0 A	103
1c79356b	104	MACH_PORT_FACE default_pager_default_set; /* Port set for "default" thread. */
1c79356b A	105	MACH_PORT_FACE default_pager_internal_set; /* Port set for internal objects. */
	106	MACH_PORT_FACE default_pager_external_set; /* Port set for external objects. */
	107
	108	#define DEFAULT_PAGER_INTERNAL_COUNT (4)
	109
	110
	111	/* Memory created by default_pager_object_create should mostly be resident. */
	112	#define DEFAULT_PAGER_EXTERNAL_COUNT (2)
	113
91447636	114	int default_pager_internal_count = DEFAULT_PAGER_INTERNAL_COUNT;
1c79356b	115	/* Number of "internal" threads. */
91447636	116	int default_pager_external_count = DEFAULT_PAGER_EXTERNAL_COUNT;
1c79356b A	117	/* Number of "external" threads. */
	118
	119	/*
	120	* Forward declarations.
	121	*/
	122	boolean_t default_pager_notify_server(mach_msg_header_t *,
	123	mach_msg_header_t *);
	124	boolean_t default_pager_demux_object(mach_msg_header_t *,
	125	mach_msg_header_t *);
	126	boolean_t default_pager_demux_default(mach_msg_header_t *,
	127	mach_msg_header_t *);
	128	default_pager_thread_t *start_default_pager_thread(int, boolean_t);
	129	void default_pager(void);
	130	void default_pager_thread(void *);
	131	void default_pager_initialize(void);
1c79356b A	132	boolean_t dp_parse_argument(char ); / forward; */
1c79356b A	133	unsigned int d_to_i(char ); / forward; */
1c79356b A	134
	135	extern int vstruct_def_clshift;
	136
b0d623f7	137	struct global_stats global_stats;
1c79356b A	138
	139	/*
	140	* Initialize and Run the default pager
	141	*/
	142	void
	143	default_pager(void)
	144	{
	145	int i, id;
91447636	146	__unused static char here[] = "default_pager";
1c79356b A	147	default_pager_thread_t dpt;
	148	kern_return_t kr;
	149
	150
	151
	152	/*
	153	* Give me space for the thread array and zero it.
	154	*/
	155	i = default_pager_internal_count + default_pager_external_count + 1;
	156	dpt_array = (default_pager_thread_t **)
	157	kalloc(i * sizeof(default_pager_thread_t *));
	158	memset(dpt_array, 0, i * sizeof(default_pager_thread_t *));
	159
	160	/* Setup my thread structure. */
	161	id = 0;
	162	dpt.dpt_buffer = 0;
	163	dpt.dpt_internal = FALSE;
	164	dpt.dpt_initialized_p = TRUE;
	165	dpt_array[0] = &dpt;
	166
	167	/*
	168	* Now we create the threads that will actually
	169	* manage objects.
	170	*/
	171
	172	for (i = 0; i < default_pager_internal_count; i++) {
	173	dpt_array[id] = (default_pager_thread_t *)
	174	kalloc(sizeof (default_pager_thread_t));
	175	if (dpt_array[id] == NULL)
	176	Panic("alloc pager thread");
	177	kr = vm_allocate(kernel_map, &((dpt_array[id])->dpt_buffer),
91447636	178	vm_page_size << vstruct_def_clshift, VM_FLAGS_ANYWHERE);
1c79356b A	179	if (kr != KERN_SUCCESS)
	180	Panic("alloc thread buffer");
	181	kr = vm_map_wire(kernel_map, (dpt_array[id])->dpt_buffer,
	182	((dpt_array[id])->dpt_buffer)
	183	+(vm_page_size << vstruct_def_clshift),
	184	VM_PROT_DEFAULT,
	185	FALSE);
	186	if (kr != KERN_SUCCESS)
	187	Panic("wire thread buffer");
	188	(dpt_array[id])->dpt_internal = TRUE;
	189	(dpt_array[id])->dpt_initialized_p = TRUE;
	190	(dpt_array[id])->checked_out = FALSE;
	191	id++;
	192	}
	193	DPT_LOCK_INIT(dpt_lock);
	194	}
	195
	196
	197
	198
	199
	200
	201	/* simple utility: only works for 2^n */
	202	int
	203	local_log2(
	204	unsigned int n)
	205	{
	206	register int i = 0;
	207
	208	if(n == 0) return 0;
	209
	210	while ((n & 1) == 0) {
	211	i++;
	212	n >>= 1;
	213	}
	214	return i;
	215	}
	216
	217
	218
	219
	220	/* another simple utility, d_to_i(char*) supporting only decimal
	221	* and devoid of range checking; obscure name chosen deliberately
	222	* to avoid confusion with semantic-rich POSIX routines */
	223	unsigned int
	224	d_to_i(char * arg)
	225	{
	226	unsigned int rval = 0;
	227	char ch;
	228
	229	while ((ch = *arg++) && ch >= '0' && ch <= '9') {
	230	rval *= 10;
	231	rval += ch - '0';
	232	}
	233	return(rval);
	234	}
	235
	236
	237
	238
	239	/*
	240	* Check for non-disk-partition arguments of the form
	241	* attribute=argument
	242	* returning TRUE if one if found
243	*/
244	boolean_t dp_parse_argument(char *av)
245	{
246	char *rhs = av;
91447636	247	__unused static char here[] = "dp_parse_argument";
1c79356b A	248
	249	/* Check for '-v' flag */
	250
	251	if (av[0] == '-' && av[1] == 'v' && av[2] == 0) {
	252	verbose = TRUE ;
	253	return TRUE;
	254	}
	255
	256	/*
	257	* If we find a '=' followed by an argument in the string,
	258	* check for known arguments
	259	*/
	260	while (rhs && rhs != '=')
	261	rhs++;
	262	if (rhs && ++rhs) {
	263	/* clsize=N pages */
	264	if (strprefix(av,"cl")) {
	265	if (!bs_set_default_clsize(d_to_i(rhs)))
	266	dprintf(("Bad argument (%s) - ignored\n", av));
	267	return(TRUE);
	268	}
	269	/* else if strprefix(av,"another_argument")) {
	270	handle_another_argument(av);
	271	return(TRUE);
	272	} */
	273	}
	274	return(FALSE);
	275	}
	276
	277	int
91447636	278	start_def_pager( __unused char *bs_device )
1c79356b	279	{
1c79356b A	280	/*
	281	MACH_PORT_FACE master_device_port;
	282	*/
1c79356b	283	/*
55e303ae	284	MACH_PORT_FACE security_port;
1c79356b A	285	MACH_PORT_FACE root_ledger_wired;
	286	MACH_PORT_FACE root_ledger_paged;
	287	*/
91447636	288	__unused static char here[] = "main";
1c79356b A	289
	290
	291
	292	/*
	293	default_pager_host_port = ipc_port_make_send(realhost.host_priv_self);
	294	master_device_port = ipc_port_make_send(master_device_port);
	295	root_ledger_wired = ipc_port_make_send(root_wired_ledger_port);
	296	root_ledger_paged = ipc_port_make_send(root_paged_ledger_port);
1c79356b	297	security_port = ipc_port_make_send(realhost.host_security_self);
55e303ae	298	*/
1c79356b A	299
	300
	301	#if NORMA_VM
	302	norma_mk = 1;
	303	#else
	304	norma_mk = 0;
	305	#endif
	306
	307
	308	/* setup read buffers, etc */
	309	default_pager_initialize();
b0d623f7 A	310
b0d623f7 A	311	#ifndef MACH_KERNEL
1c79356b	312	default_pager();
b0d623f7 A	313	#endif
b0d623f7 A	314
55e303ae	315	/* start the backing store monitor, it runs on a callout thread */
91447636 A	316	default_pager_backing_store_monitor_callout =
	317	thread_call_allocate(default_pager_backing_store_monitor, NULL);
	318	if (!default_pager_backing_store_monitor_callout)
	319	panic("can't start backing store monitor thread");
	320	thread_call_enter(default_pager_backing_store_monitor_callout);
0c530ab8 A	321
0c530ab8 A	322	return (0);
1c79356b A	323	}
1c79356b A	324
1c79356b A	325	kern_return_t
1c79356b A	326	default_pager_info(
0b4e3aa0	327	memory_object_default_t pager,
1c79356b A	328	default_pager_info_t *infop)
1c79356b A	329	{
b0d623f7	330	uint64_t pages_total, pages_free;
1c79356b	331
0b4e3aa0	332	if (pager != default_pager_object)
1c79356b A	333	return KERN_INVALID_ARGUMENT;
	334
	335	bs_global_info(&pages_total, &pages_free);
	336
b0d623f7 A	337	infop->dpi_total_space = (vm_size_t) ptoa_64(pages_total);
b0d623f7 A	338	infop->dpi_free_space = (vm_size_t) ptoa_64(pages_free);
1c79356b A	339	infop->dpi_page_size = vm_page_size;
	340
	341	return KERN_SUCCESS;
	342	}
	343
	344
91447636 A	345	kern_return_t
	346	default_pager_info_64(
	347	memory_object_default_t pager,
	348	default_pager_info_64_t *infop)
	349	{
b0d623f7	350	uint64_t pages_total, pages_free;
91447636 A	351
	352	if (pager != default_pager_object)
	353	return KERN_INVALID_ARGUMENT;
	354
	355	bs_global_info(&pages_total, &pages_free);
	356
	357	infop->dpi_total_space = ptoa_64(pages_total);
	358	infop->dpi_free_space = ptoa_64(pages_free);
	359	infop->dpi_page_size = vm_page_size;
	360	infop->dpi_flags = 0;
	361	if (dp_encryption_inited && dp_encryption == TRUE) {
	362	infop->dpi_flags \|= DPI_ENCRYPTED;
	363	}
	364
	365	return KERN_SUCCESS;
	366	}
	367
b0d623f7 A	368	lck_grp_t default_pager_lck_grp;
	369	lck_grp_attr_t default_pager_lck_grp_attr;
	370	lck_attr_t default_pager_lck_attr;
	371
	372
91447636	373
1c79356b	374	void
2d21ac55	375	default_pager_initialize(void)
1c79356b A	376	{
1c79356b A	377	kern_return_t kr;
91447636	378	__unused static char here[] = "default_pager_initialize";
1c79356b	379
b0d623f7 A	380	lck_grp_attr_setdefault(&default_pager_lck_grp_attr);
	381	lck_grp_init(&default_pager_lck_grp, "default_pager", &default_pager_lck_grp_attr);
	382	lck_attr_setdefault(&default_pager_lck_attr);
1c79356b	383
0b4e3aa0 A	384	/*
	385	* Vm variables.
	386	*/
b0d623f7	387	#ifndef MACH_KERNEL
0b4e3aa0	388	vm_page_mask = vm_page_size - 1;
b0d623f7 A	389	assert((unsigned int) vm_page_size == vm_page_size);
	390	vm_page_shift = local_log2((unsigned int) vm_page_size);
	391	#endif
0b4e3aa0 A	392
	393	/*
	394	* List of all vstructs.
	395	*/
	396	vstruct_zone = zinit(sizeof(struct vstruct),
	397	10000 * sizeof(struct vstruct),
	398	8192, "vstruct zone");
6d2010ae	399	zone_change(vstruct_zone, Z_CALLERACCT, FALSE);
0b4c1975 A	400	zone_change(vstruct_zone, Z_NOENCRYPT, TRUE);
0b4c1975 A	401
0b4e3aa0 A	402	VSL_LOCK_INIT();
	403	queue_init(&vstruct_list.vsl_queue);
	404	vstruct_list.vsl_count = 0;
	405
	406	VSTATS_LOCK_INIT(&global_stats.gs_lock);
	407
	408	bs_initialize();
	409
1c79356b A	410	/*
	411	* Exported DMM port.
	412	*/
0b4e3aa0	413	default_pager_object = ipc_port_alloc_kernel();
1c79356b A	414
	415
	416	/*
	417	* Export pager interfaces.
	418	*/
	419	#ifdef USER_PAGER
	420	if ((kr = netname_check_in(name_server_port, "UserPager",
	421	default_pager_self,
0b4e3aa0	422	default_pager_object))
1c79356b A	423	!= KERN_SUCCESS) {
	424	dprintf(("netname_check_in returned 0x%x\n", kr));
	425	exit(1);
	426	}
	427	#else /* USER_PAGER */
	428	{
b0d623f7	429	unsigned int clsize;
0b4e3aa0	430	memory_object_default_t dmm;
1c79356b	431
0b4e3aa0	432	dmm = default_pager_object;
b0d623f7 A	433	assert((unsigned int) vm_page_size == vm_page_size);
b0d623f7 A	434	clsize = ((unsigned int) vm_page_size << vstruct_def_clshift);
0b4e3aa0 A	435	kr = host_default_memory_manager(host_priv_self(), &dmm, clsize);
	436	if ((kr != KERN_SUCCESS) \|\|
	437	(dmm != MEMORY_OBJECT_DEFAULT_NULL))
1c79356b A	438	Panic("default memory manager");
	439
	440	}
	441	#endif /* USER_PAGER */
	442
	443
1c79356b A	444	}
1c79356b A	445