19c17d615SPaolo Bonzini /* 29c17d615SPaolo Bonzini * QEMU memory mapping 39c17d615SPaolo Bonzini * 49c17d615SPaolo Bonzini * Copyright Fujitsu, Corp. 2011, 2012 59c17d615SPaolo Bonzini * 69c17d615SPaolo Bonzini * Authors: 79c17d615SPaolo Bonzini * Wen Congyang <wency@cn.fujitsu.com> 89c17d615SPaolo Bonzini * 99c17d615SPaolo Bonzini * This work is licensed under the terms of the GNU GPL, version 2 or later. 109c17d615SPaolo Bonzini * See the COPYING file in the top-level directory. 119c17d615SPaolo Bonzini * 129c17d615SPaolo Bonzini */ 139c17d615SPaolo Bonzini 149c17d615SPaolo Bonzini #ifndef MEMORY_MAPPING_H 159c17d615SPaolo Bonzini #define MEMORY_MAPPING_H 169c17d615SPaolo Bonzini 179c17d615SPaolo Bonzini #include "qemu/queue.h" 184e27e765SPhilippe Mathieu-Daudé #include "exec/cpu-common.h" 199c17d615SPaolo Bonzini 205ee163e8SLaszlo Ersek typedef struct GuestPhysBlock { 215ee163e8SLaszlo Ersek /* visible to guest, reflects PCI hole, etc */ 225ee163e8SLaszlo Ersek hwaddr target_start; 235ee163e8SLaszlo Ersek 245ee163e8SLaszlo Ersek /* implies size */ 255ee163e8SLaszlo Ersek hwaddr target_end; 265ee163e8SLaszlo Ersek 275ee163e8SLaszlo Ersek /* points into host memory */ 285ee163e8SLaszlo Ersek uint8_t *host_addr; 295ee163e8SLaszlo Ersek 301fbeff72SPeter Xu /* points to the MemoryRegion that this block belongs to */ 311fbeff72SPeter Xu MemoryRegion *mr; 321fbeff72SPeter Xu 335ee163e8SLaszlo Ersek QTAILQ_ENTRY(GuestPhysBlock) next; 345ee163e8SLaszlo Ersek } GuestPhysBlock; 355ee163e8SLaszlo Ersek 365ee163e8SLaszlo Ersek /* point-in-time snapshot of guest-visible physical mappings */ 375ee163e8SLaszlo Ersek typedef struct GuestPhysBlockList { 385ee163e8SLaszlo Ersek unsigned num; 39eae3eb3eSPaolo Bonzini QTAILQ_HEAD(, GuestPhysBlock) head; 405ee163e8SLaszlo Ersek } GuestPhysBlockList; 415ee163e8SLaszlo Ersek 429c17d615SPaolo Bonzini /* The physical and virtual address in the memory mapping are contiguous. */ 439c17d615SPaolo Bonzini typedef struct MemoryMapping { 449c17d615SPaolo Bonzini hwaddr phys_addr; 454e27e765SPhilippe Mathieu-Daudé vaddr virt_addr; 469c17d615SPaolo Bonzini ram_addr_t length; 479c17d615SPaolo Bonzini QTAILQ_ENTRY(MemoryMapping) next; 489c17d615SPaolo Bonzini } MemoryMapping; 499c17d615SPaolo Bonzini 506d4d3ae7SAndreas Färber struct MemoryMappingList { 519c17d615SPaolo Bonzini unsigned int num; 529c17d615SPaolo Bonzini MemoryMapping *last_mapping; 539c17d615SPaolo Bonzini QTAILQ_HEAD(, MemoryMapping) head; 546d4d3ae7SAndreas Färber }; 559c17d615SPaolo Bonzini 569c17d615SPaolo Bonzini /* 579c17d615SPaolo Bonzini * add or merge the memory region [phys_addr, phys_addr + length) into the 589c17d615SPaolo Bonzini * memory mapping's list. The region's virtual address starts with virt_addr, 599c17d615SPaolo Bonzini * and is contiguous. The list is sorted by phys_addr. 609c17d615SPaolo Bonzini */ 619c17d615SPaolo Bonzini void memory_mapping_list_add_merge_sorted(MemoryMappingList *list, 629c17d615SPaolo Bonzini hwaddr phys_addr, 639c17d615SPaolo Bonzini hwaddr virt_addr, 649c17d615SPaolo Bonzini ram_addr_t length); 659c17d615SPaolo Bonzini 669c17d615SPaolo Bonzini void memory_mapping_list_free(MemoryMappingList *list); 679c17d615SPaolo Bonzini 689c17d615SPaolo Bonzini void memory_mapping_list_init(MemoryMappingList *list); 699c17d615SPaolo Bonzini 705ee163e8SLaszlo Ersek void guest_phys_blocks_free(GuestPhysBlockList *list); 715ee163e8SLaszlo Ersek void guest_phys_blocks_init(GuestPhysBlockList *list); 72c5d7f60fSLaszlo Ersek void guest_phys_blocks_append(GuestPhysBlockList *list); 735ee163e8SLaszlo Ersek 74*1ff5f4d2SMarc-André Lureau bool qemu_get_guest_memory_mapping(MemoryMappingList *list, 7556c4bfb3SLaszlo Ersek const GuestPhysBlockList *guest_phys_blocks, 7656c4bfb3SLaszlo Ersek Error **errp); 779c17d615SPaolo Bonzini 789c17d615SPaolo Bonzini /* get guest's memory mapping without do paging(virtual address is 0). */ 7956c4bfb3SLaszlo Ersek void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list, 8056c4bfb3SLaszlo Ersek const GuestPhysBlockList *guest_phys_blocks); 819c17d615SPaolo Bonzini 829c17d615SPaolo Bonzini void memory_mapping_filter(MemoryMappingList *list, int64_t begin, 839c17d615SPaolo Bonzini int64_t length); 849c17d615SPaolo Bonzini 859c17d615SPaolo Bonzini #endif 86