/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This 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 OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_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. */ /* */ /* * File: ipc/ipc_init.c * Author: Rich Draves * Date: 1989 * * Functions to initialize the IPC system. */ #include <mach_debug.h> #include <mach_rt.h> #include <mach/kern_return.h> #include <kern/mach_param.h> #include <kern/ipc_host.h> #include <kern/misc_protos.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_notify.h> #include <ipc/ipc_kmsg.h> #include <ipc/ipc_hash.h> #include <ipc/ipc_init.h> #include <mach/machine/ndr_def.h> /* NDR_record */ 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; vm_size_t ipc_kmsg_max_vm_space = (IPC_KERNEL_COPY_MAP_SIZE * 7)/8; 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); extern void ikm_cache_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), "ipc spaces"); #if 0 /* make it exhaustible */ zone_change(ipc_space_zone, Z_EXHAUST, TRUE); #endif ipc_tree_entry_zone = zinit(sizeof(struct ipc_tree_entry), ipc_tree_entry_max * sizeof(struct ipc_tree_entry), sizeof(struct ipc_tree_entry), "ipc tree entries"); #if 0 /* make it exhaustible */ zone_change(ipc_tree_entry_zone, Z_EXHAUST, TRUE); #endif /* * populate all port(set) zones */ ipc_object_zones[IOT_PORT] = zinit(sizeof(struct ipc_port), ipc_port_max * sizeof(struct ipc_port), sizeof(struct ipc_port), "ipc ports"); /* * XXX Can't make the port zone exhaustible because the kernel * XXX panics when port allocation for an internal object fails. *zone_change(ipc_object_zones[IOT_PORT], Z_EXHAUST, TRUE); */ ipc_object_zones[IOT_PORT_SET] = zinit(sizeof(struct ipc_pset), ipc_pset_max * sizeof(struct ipc_pset), sizeof(struct ipc_pset), "ipc port sets"); /* make it exhaustible */ zone_change(ipc_object_zones[IOT_PORT_SET], Z_EXHAUST, TRUE); /* 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 */ #if MACH_ASSERT ipc_port_debug_init(); #endif mig_init(); ipc_table_init(); ipc_notify_init(); ipc_hash_init(); ipc_kmsg_init(); semaphore_init(); lock_set_init(); } /* * XXX tunable, belongs in mach.message.h */ #define MSG_OOL_SIZE_SMALL_MAX 4096 vm_size_t msg_ool_size_small; /* * Routine: ipc_init * Purpose: * Final initialization of the IPC system. */ void ipc_init(void) { kern_return_t retval; vm_offset_t min, max; extern vm_size_t kalloc_max_prerounded; retval = kmem_suballoc(kernel_map, &min, ipc_kernel_map_size, TRUE, TRUE, &ipc_kernel_map); if (retval != KERN_SUCCESS) panic("ipc_init: kmem_suballoc of ipc_kernel_map failed"); retval = kmem_suballoc(kernel_map, &min, ipc_kernel_copy_map_size, TRUE, TRUE, &ipc_kernel_copy_map); if (retval != KERN_SUCCESS) panic("ipc_init: kmem_suballoc of ipc_kernel_copy_map failed"); ipc_kernel_copy_map->no_zero_fill = TRUE; ipc_kernel_copy_map->wait_for_space = TRUE; /* * As an optimization, 'small' out of line data regions using a * physical copy strategy are copied into kalloc'ed buffers. * The value of 'small' is determined here. Requests kalloc() * with sizes greater or equal to kalloc_max_prerounded may fail. */ if (kalloc_max_prerounded <= MSG_OOL_SIZE_SMALL_MAX) { msg_ool_size_small = kalloc_max_prerounded; } else { msg_ool_size_small = MSG_OOL_SIZE_SMALL_MAX; } ipc_host_init(); }