X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..9d749ea394c01276fa19e397e70f46858e849c76:/osfmk/vm/vm_fault.h diff --git a/osfmk/vm/vm_fault.h b/osfmk/vm/vm_fault.h index 4941efe69..666b7ef52 100644 --- a/osfmk/vm/vm_fault.h +++ b/osfmk/vm/vm_fault.h @@ -1,23 +1,29 @@ /* * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_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 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. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * 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_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ @@ -73,8 +79,8 @@ typedef kern_return_t vm_fault_return_t; #define VM_FAULT_RETRY 1 #define VM_FAULT_INTERRUPTED 2 #define VM_FAULT_MEMORY_SHORTAGE 3 -#define VM_FAULT_FICTITIOUS_SHORTAGE 4 #define VM_FAULT_MEMORY_ERROR 5 +#define VM_FAULT_SUCCESS_NO_VM_PAGE 6 /* success but no VM page */ /* * Page fault handling based on vm_map (or entries therein) @@ -85,10 +91,15 @@ extern kern_return_t vm_fault( vm_map_offset_t vaddr, vm_prot_t fault_type, boolean_t change_wiring, +#if XNU_KERNEL_PRIVATE + vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */ +#endif int interruptible, pmap_t pmap, vm_map_offset_t pmap_addr); +extern void vm_pre_fault(vm_map_offset_t); + #ifdef MACH_KERNEL_PRIVATE #include @@ -97,6 +108,16 @@ extern kern_return_t vm_fault( extern void vm_fault_init(void); +/* exported kext version */ +extern kern_return_t vm_fault_external( + vm_map_t map, + vm_map_offset_t vaddr, + vm_prot_t fault_type, + boolean_t change_wiring, + int interruptible, + pmap_t caller_pmap, + vm_map_offset_t caller_pmap_addr); + /* * Page fault handling based on vm_object only. */ @@ -107,14 +128,11 @@ extern vm_fault_return_t vm_fault_page( vm_object_offset_t first_offset,/* Offset into object */ vm_prot_t fault_type, /* What access is requested */ boolean_t must_be_resident,/* Must page be resident? */ - int interruptible,/* how may fault be interrupted */ - vm_map_offset_t lo_offset, /* Map entry start */ - vm_map_offset_t hi_offset, /* Map entry end */ - vm_behavior_t behavior, /* Expected paging behavior */ + boolean_t caller_lookup, /* caller looked up page */ /* Modifies in place: */ vm_prot_t *protection, /* Protection for mapping */ - /* Returns: */ vm_page_t *result_page, /* Page found, if successful */ + /* Returns: */ vm_page_t *top_page, /* Page in top object, if * not result_page. */ int *type_of_fault, /* if non-zero, return COW, zero-filled, etc... @@ -123,8 +141,7 @@ extern vm_fault_return_t vm_fault_page( kern_return_t *error_code, /* code if page is in error */ boolean_t no_zero_fill, /* don't fill absent pages */ boolean_t data_supply, /* treat as data_supply */ - vm_map_t map, - vm_map_offset_t vaddr); + vm_object_fault_info_t fault_info); extern void vm_fault_cleanup( vm_object_t object, @@ -133,8 +150,11 @@ extern void vm_fault_cleanup( extern kern_return_t vm_fault_wire( vm_map_t map, vm_map_entry_t entry, + vm_prot_t prot, + vm_tag_t wire_tag, pmap_t pmap, - vm_map_offset_t pmap_addr); + vm_map_offset_t pmap_addr, + ppnum_t *physpage_p); extern void vm_fault_unwire( vm_map_t map, @@ -153,6 +173,27 @@ extern kern_return_t vm_fault_copy( vm_map_version_t *dst_version, int interruptible); +extern kern_return_t vm_fault_enter( + vm_page_t m, + pmap_t pmap, + vm_map_offset_t vaddr, + vm_prot_t prot, + vm_prot_t fault_type, + boolean_t wired, + boolean_t change_wiring, + vm_tag_t wire_tag, /* if wiring must pass tag != VM_KERN_MEMORY_NONE */ + boolean_t no_cache, + boolean_t cs_bypass, + int user_tag, + int pmap_options, + boolean_t *need_retry, + int *type_of_fault); + +extern vm_offset_t kdp_lightweight_fault( + vm_map_t map, + vm_offset_t cur_target_addr); + + #endif /* MACH_KERNEL_PRIVATE */ #endif /* KERNEL_PRIVATE */