1 /* 2 * QEMU memory mapping 3 * 4 * Copyright Fujitsu, Corp. 2011, 2012 5 * 6 * Authors: 7 * Wen Congyang <wency@cn.fujitsu.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 * 12 */ 13 14 #ifndef MEMORY_MAPPING_H 15 #define MEMORY_MAPPING_H 16 17 #include "qemu/queue.h" 18 19 /* The physical and virtual address in the memory mapping are contiguous. */ 20 typedef struct MemoryMapping { 21 hwaddr phys_addr; 22 target_ulong virt_addr; 23 ram_addr_t length; 24 QTAILQ_ENTRY(MemoryMapping) next; 25 } MemoryMapping; 26 27 typedef struct MemoryMappingList { 28 unsigned int num; 29 MemoryMapping *last_mapping; 30 QTAILQ_HEAD(, MemoryMapping) head; 31 } MemoryMappingList; 32 33 int cpu_get_memory_mapping(MemoryMappingList *list, CPUArchState *env); 34 35 /* 36 * add or merge the memory region [phys_addr, phys_addr + length) into the 37 * memory mapping's list. The region's virtual address starts with virt_addr, 38 * and is contiguous. The list is sorted by phys_addr. 39 */ 40 void memory_mapping_list_add_merge_sorted(MemoryMappingList *list, 41 hwaddr phys_addr, 42 hwaddr virt_addr, 43 ram_addr_t length); 44 45 void memory_mapping_list_free(MemoryMappingList *list); 46 47 void memory_mapping_list_init(MemoryMappingList *list); 48 49 /* 50 * Return value: 51 * 0: success 52 * -1: failed 53 * -2: unsupported 54 */ 55 int qemu_get_guest_memory_mapping(MemoryMappingList *list); 56 57 /* get guest's memory mapping without do paging(virtual address is 0). */ 58 void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list); 59 60 void memory_mapping_filter(MemoryMappingList *list, int64_t begin, 61 int64_t length); 62 63 #endif 64