1 /* 2 * Copyright (c) 2000-2024 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #pragma once 30 31 #if PRIVATE 32 33 #include <sys/cdefs.h> 34 #include <mach/machine/kern_return.h> 35 36 37 /* 38 * c_segment_info and c_slot_info are used in the serialization protocol of sysctl vm.compressor_segments 39 * one c_segment_info is dumped for every c_segment in memory, followed by a number of c_slot_info 40 * Every change to this format should increment the version number in VM_C_SEGMENT_INFO_MAGIC 41 */ 42 struct c_slot_info { 43 uint16_t csi_size; 44 uint16_t csi_unused; 45 } __attribute__((packed)); 46 47 struct c_segment_info { 48 uint32_t csi_mysegno; 49 uint32_t csi_creation_ts; 50 uint32_t csi_swappedin_ts; 51 int32_t csi_bytes_unused; 52 int32_t csi_bytes_used; 53 uint32_t csi_populated_offset; 54 55 uint32_t csi_state: 4, 56 csi_swappedin: 1, 57 csi_on_minor_compact_q: 1, 58 csi_has_donated_pages: 1, 59 csi_reserved: 25; 60 int csi_slot_var_array_len;/* max is 1024 so this can be short in needed */ 61 uint32_t csi_decompressions_since_swapin; 62 uint16_t csi_slots_used; 63 uint16_t csi_slots_len; /* count of csi_slots */ 64 struct c_slot_info csi_slots[0]; 65 } __attribute__((packed)); 66 67 #define VM_C_SEGMENT_INFO_MAGIC 'C002' 68 69 /* 70 * vm_map_info_hdr and vm_map_entry_info are used for output of ### 71 * a starting header gives the number of entries that follow, the every entry in the vm_map 72 * is represented by a vm_map_entry_info 73 */ 74 struct vm_map_info_hdr { 75 int vmi_nentries; 76 } __attribute__((packed)); 77 78 struct vm_map_entry_info { 79 vm_map_offset_t vmei_start; /* start address */ 80 vm_map_offset_t vmei_end; /* end address */ 81 unsigned long long 82 /* vm_tag_t */ vmei_alias:12, /* entry VM tag */ 83 /* vm_object_offset_t*/ vmei_offset:(64 - 12); /* offset into object */ 84 uint32_t vmei_is_sub_map: 1, 85 vmei_is_compressor_pager: 1, 86 vmei_protection: 3; 87 uint32_t vmei_slot_mapping_count; 88 int slot_mappings[0]; 89 } __attribute__((packed)); 90 91 #define VM_MAP_ENTRY_INFO_MAGIC 'S001' 92 93 #endif /* PRIVATE */ 94