/*
* Copyright (c) 2000-2020 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
* 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) 1991,1990,1989,1988,1987 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: vm/vm_init.c
* Author: Avadis Tevanian, Jr., Michael Wayne Young
* Date: 1985
*
* Initialize the Virtual Memory subsystem.
*/
#include <mach/machine/vm_types.h>
#include <mach/vm_map.h>
#include <kern/startup.h>
#include <kern/zalloc_internal.h>
#include <kern/kext_alloc.h>
#include <sys/kdebug.h>
#include <vm/vm_object_internal.h>
#include <vm/vm_map_internal.h>
#include <vm/vm_page_internal.h>
#include <vm/vm_kern.h>
#include <vm/memory_object.h>
#include <vm/vm_fault_xnu.h>
#include <vm/vm_init_xnu.h>
#include <pexpert/pexpert.h>
#include <vm/vm_protos.h>
const vm_offset_t vm_min_kernel_address = VM_MIN_KERNEL_AND_KEXT_ADDRESS;
const vm_offset_t vm_max_kernel_address = VM_MAX_KERNEL_ADDRESS;
TUNABLE(bool, iokit_iomd_setownership_enabled,
"iokit_iomd_setownership_enabled", true);
static inline void
vm_mem_bootstrap_log(const char *message)
{
// kprintf("vm_mem_bootstrap: %s\n", message);
kernel_debug_string_early(message);
}
/*
* vm_mem_bootstrap initializes the virtual memory system.
* This is done only by the first cpu up.
*/
__startup_func
void
vm_mem_bootstrap(void)
{
vm_offset_t start, end;
/*
* Initializes resident memory structures.
* From here on, all physical memory is accounted for,
* and we use only virtual addresses.
*/
vm_mem_bootstrap_log("vm_page_bootstrap");
vm_page_bootstrap(&start, &end);
/*
* Initialize other VM packages
*/
vm_mem_bootstrap_log("zone_bootstrap");
zone_bootstrap();
vm_mem_bootstrap_log("vm_object_bootstrap");
vm_object_bootstrap();
vm_retire_boot_pages();
vm_mem_bootstrap_log("vm_map_init");
vm_map_init();
vm_mem_bootstrap_log("kmem_init");
kmem_init(start, end);
kernel_startup_initialize_upto(STARTUP_SUB_KMEM);
vm_mem_bootstrap_log("vm_fault_init");
vm_fault_init();
kernel_startup_initialize_upto(STARTUP_SUB_ZALLOC);
if (iokit_iomd_setownership_enabled) {
kprintf("IOKit IOMD setownership ENABLED\n");
} else {
kprintf("IOKit IOMD setownership DISABLED\n");
}
}