Source to ipc/ipc_init.c
/*
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
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/*
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/*
* OSF Research Institute MK6.1 (unencumbered) 1/31/1995
*/
/*
* 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
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* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or [email protected]
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*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* File: ipc/ipc_init.c
* Author: Rich Draves
* Date: 1989
*
* Functions to initialize the IPC system.
*/
#import <mach/features.h>
#include <mach/kern_return.h>
#include <kern/mach_param.h>
#include <kern/ipc_host.h>
#include <vm/vm_map.h>
#include <vm/vm_kern.h>
#include <ipc/ipc_entry.h>
#include <ipc/ipc_space.h>
#include <ipc/ipc_object.h>
#include <ipc/ipc_port.h>
#include <ipc/ipc_pset.h>
#include <ipc/ipc_marequest.h>
#include <ipc/ipc_notify.h>
#include <ipc/ipc_kmsg.h>
#include <ipc/ipc_hash.h>
#include <ipc/ipc_init.h>
#include <mach/machine/ndr.h>
#if MACH_OLD_VM_COPY
task_t ipc_soft_task;
vm_map_t ipc_soft_map;
#endif
vm_map_t ipc_kernel_map;
vm_size_t ipc_kernel_map_size = 1024 * 1024;
vm_map_t ipc_kernel_copy_map;
#define IPC_KERNEL_COPY_MAP_SIZE (8 * 1024 * 1024)
vm_size_t ipc_kernel_copy_map_size = IPC_KERNEL_COPY_MAP_SIZE;
int ipc_space_max = SPACE_MAX;
int ipc_tree_entry_max = ITE_MAX;
int ipc_port_max = PORT_MAX;
int ipc_pset_max = SET_MAX;
extern void mig_init(void);
/*
* Routine: ipc_bootstrap
* Purpose:
* Initialization needed before the kernel task
* can be created.
*/
void
ipc_bootstrap(void)
{
kern_return_t kr;
ipc_port_multiple_lock_init();
ipc_port_timestamp_lock_init();
ipc_port_timestamp_data = 0;
/* all IPC zones should be exhaustible */
ipc_space_zone = zinit(sizeof(struct ipc_space),
ipc_space_max * sizeof(struct ipc_space),
sizeof(struct ipc_space),
FALSE, "ipc spaces");
/* make it exhaustible */
zchange(ipc_space_zone, FALSE, FALSE, TRUE, FALSE);
ipc_tree_entry_zone =
zinit(sizeof(struct ipc_tree_entry),
ipc_tree_entry_max * sizeof(struct ipc_tree_entry),
sizeof(struct ipc_tree_entry),
FALSE, "ipc tree entries");
/* make it exhaustible */
zchange(ipc_tree_entry_zone, FALSE, FALSE, TRUE, FALSE);
ipc_object_zones[IOT_PORT] =
zinit(sizeof(struct ipc_port),
ipc_port_max * sizeof(struct ipc_port),
sizeof(struct ipc_port),
FALSE, "ipc ports");
/* make it exhaustible */
zchange(ipc_object_zones[IOT_PORT], FALSE, FALSE, TRUE, FALSE);
ipc_object_zones[IOT_PORT_SET] =
zinit(sizeof(struct ipc_pset),
ipc_pset_max * sizeof(struct ipc_pset),
sizeof(struct ipc_pset),
FALSE, "ipc port sets");
/* make it exhaustible */
zchange(ipc_object_zones[IOT_PORT_SET], FALSE, FALSE, TRUE, FALSE);
/* create special spaces */
kr = ipc_space_create_special(&ipc_space_kernel);
assert(kr == KERN_SUCCESS);
kr = ipc_space_create_special(&ipc_space_reply);
assert(kr == KERN_SUCCESS);
/* initialize modules with hidden data structures */
ipc_table_init();
ipc_notify_init();
ipc_hash_init();
ipc_marequest_init();
}
/*
* Routine: ipc_init
* Purpose:
* Final initialization of the IPC system.
*/
void
ipc_init(void)
{
vm_offset_t min, max;
#if MACH_OLD_VM_COPY
if (task_create(TASK_NULL, FALSE, &ipc_soft_task) != KERN_SUCCESS)
panic("ipc_init");
ipc_soft_map = ipc_soft_task->map;
{
vm_offset_t x = 0;
/*
* XXX
* Allocate page zero here
* so that it can't be used as
* the address of a valid copy
* region.
* XXX
*/
(void) vm_allocate(ipc_soft_map, &x, PAGE_SIZE, FALSE);
}
#endif /* MACH_OLD_VM_COPY */
ipc_kernel_map = kmem_suballoc(kernel_map, &min, &max,
ipc_kernel_map_size, TRUE);
ipc_kernel_copy_map = kmem_suballoc(kernel_map, &min, &max,
ipc_kernel_copy_map_size, TRUE);
ipc_host_init();
}