X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/fe8ab488e9161c46dd9885d58fc52996dc0249ff..0a7de7458d150b5d4dffc935ba399be265ef0a1a:/osfmk/ipc/ipc_init.c diff --git a/osfmk/ipc/ipc_init.c b/osfmk/ipc/ipc_init.c index 2211d1b18..4e45ca60e 100644 --- a/osfmk/ipc/ipc_init.c +++ b/osfmk/ipc/ipc_init.c @@ -2,7 +2,7 @@ * Copyright (c) 2000-2012 Apple 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 @@ -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. - * + * * 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, @@ -22,34 +22,34 @@ * 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. */ @@ -71,7 +71,6 @@ */ #include -#include #include #include @@ -88,6 +87,7 @@ #include #include #include +#include #include #include @@ -115,24 +115,22 @@ vm_map_t ipc_kernel_copy_map; 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); -/* +/* * values to limit inline message body handling * avoid copyin/out limits - even after accounting for maximum descriptor expansion. */ #define IPC_KMSG_MAX_SPACE (64 * 1024 * 1024) /* keep in sync with COPYSIZELIMIT_PANIC */ -vm_size_t ipc_kmsg_max_body_space = ((IPC_KMSG_MAX_SPACE * 3)/4 - MAX_TRAILER_SIZE); +vm_size_t ipc_kmsg_max_body_space = ((IPC_KMSG_MAX_SPACE * 3) / 4 - MAX_TRAILER_SIZE); int ipc_space_max; int ipc_port_max; int ipc_pset_max; -lck_grp_t ipc_lck_grp; -lck_attr_t ipc_lck_attr; - -static lck_grp_attr_t ipc_lck_grp_attr; +lck_grp_t ipc_lck_grp; +lck_attr_t ipc_lck_attr; -extern void ikm_cache_init(void); +static lck_grp_attr_t ipc_lck_grp_attr; /* * Routine: ipc_bootstrap @@ -145,11 +143,11 @@ void ipc_bootstrap(void) { kern_return_t kr; - + lck_grp_attr_setdefault(&ipc_lck_grp_attr); lck_grp_init(&ipc_lck_grp, "ipc", &ipc_lck_grp_attr); lck_attr_setdefault(&ipc_lck_attr); - + ipc_port_multiple_lock_init(); ipc_port_timestamp_data = 0; @@ -157,28 +155,28 @@ ipc_bootstrap(void) /* 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"); + ipc_space_max * sizeof(struct ipc_space), + sizeof(struct ipc_space), + "ipc spaces"); zone_change(ipc_space_zone, Z_NOENCRYPT, TRUE); /* * 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"); + zinit(sizeof(struct ipc_port), + ipc_port_max * sizeof(struct ipc_port), + sizeof(struct ipc_port), + "ipc ports"); /* cant charge callers for port allocations (references passed) */ zone_change(ipc_object_zones[IOT_PORT], Z_CALLERACCT, FALSE); zone_change(ipc_object_zones[IOT_PORT], Z_NOENCRYPT, 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"); + zinit(sizeof(struct ipc_pset), + ipc_pset_max * sizeof(struct ipc_pset), + sizeof(struct ipc_pset), + "ipc port sets"); zone_change(ipc_object_zones[IOT_PORT_SET], Z_NOENCRYPT, TRUE); /* @@ -186,11 +184,12 @@ ipc_bootstrap(void) * elements at the processor-level to avoid the locking. */ ipc_kmsg_zone = zinit(IKM_SAVED_KMSG_SIZE, - ipc_port_max * MACH_PORT_QLIMIT_DEFAULT * - IKM_SAVED_KMSG_SIZE, - IKM_SAVED_KMSG_SIZE, - "ipc kmsgs"); + ipc_port_max * MACH_PORT_QLIMIT_DEFAULT * + IKM_SAVED_KMSG_SIZE, + IKM_SAVED_KMSG_SIZE, + "ipc kmsgs"); zone_change(ipc_kmsg_zone, Z_CALLERACCT, FALSE); + zone_change(ipc_kmsg_zone, Z_CACHING_ENABLED, TRUE); /* create special spaces */ @@ -203,7 +202,7 @@ ipc_bootstrap(void) /* initialize modules with hidden data structures */ -#if MACH_ASSERT +#if MACH_ASSERT ipc_port_debug_init(); #endif mig_init(); @@ -219,10 +218,10 @@ ipc_bootstrap(void) host_notify_init(); } -/* - * XXX tunable, belongs in mach.message.h +/* + * XXX tunable, belongs in mach.message.h */ -#define MSG_OOL_SIZE_SMALL_MAX 4096 +#define MSG_OOL_SIZE_SMALL_MAX (2*PAGE_SIZE) vm_size_t msg_ool_size_small; /* @@ -238,35 +237,46 @@ ipc_init(void) vm_offset_t min; retval = kmem_suballoc(kernel_map, &min, ipc_kernel_map_size, - TRUE, VM_FLAGS_ANYWHERE, &ipc_kernel_map); + TRUE, + (VM_FLAGS_ANYWHERE), + VM_MAP_KERNEL_FLAGS_NONE, + VM_KERN_MEMORY_IPC, + &ipc_kernel_map); - if (retval != KERN_SUCCESS) + 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, VM_FLAGS_ANYWHERE, &ipc_kernel_copy_map); + TRUE, + (VM_FLAGS_ANYWHERE), + VM_MAP_KERNEL_FLAGS_NONE, + VM_KERN_MEMORY_IPC, + &ipc_kernel_copy_map); - if (retval != KERN_SUCCESS) + 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 + * 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) { + if (kalloc_max_prerounded <= MSG_OOL_SIZE_SMALL_MAX) { msg_ool_size_small = kalloc_max_prerounded; - } - else { + } else { msg_ool_size_small = MSG_OOL_SIZE_SMALL_MAX; } + /* account for overhead to avoid spilling over a page */ + msg_ool_size_small -= cpy_kdata_hdr_sz; ipc_host_init(); - + ux_handler_init(); }