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" 186d4d3ae7SAndreas Färber #include "qemu/typedefs.h" 19*1fbeff72SPeter Xu #include "exec/memory.h" 209c17d615SPaolo Bonzini 215ee163e8SLaszlo Ersek typedef struct GuestPhysBlock { 225ee163e8SLaszlo Ersek /* visible to guest, reflects PCI hole, etc */ 235ee163e8SLaszlo Ersek hwaddr target_start; 245ee163e8SLaszlo Ersek 255ee163e8SLaszlo Ersek /* implies size */ 265ee163e8SLaszlo Ersek hwaddr target_end; 275ee163e8SLaszlo Ersek 285ee163e8SLaszlo Ersek /* points into host memory */ 295ee163e8SLaszlo Ersek uint8_t *host_addr; 305ee163e8SLaszlo Ersek 31*1fbeff72SPeter Xu /* points to the MemoryRegion that this block belongs to */ 32*1fbeff72SPeter Xu MemoryRegion *mr; 33*1fbeff72SPeter Xu 345ee163e8SLaszlo Ersek QTAILQ_ENTRY(GuestPhysBlock) next; 355ee163e8SLaszlo Ersek } GuestPhysBlock; 365ee163e8SLaszlo Ersek 375ee163e8SLaszlo Ersek /* point-in-time snapshot of guest-visible physical mappings */ 385ee163e8SLaszlo Ersek typedef struct GuestPhysBlockList { 395ee163e8SLaszlo Ersek unsigned num; 405ee163e8SLaszlo Ersek QTAILQ_HEAD(GuestPhysBlockHead, GuestPhysBlock) head; 415ee163e8SLaszlo Ersek } GuestPhysBlockList; 425ee163e8SLaszlo Ersek 439c17d615SPaolo Bonzini /* The physical and virtual address in the memory mapping are contiguous. */ 449c17d615SPaolo Bonzini typedef struct MemoryMapping { 459c17d615SPaolo Bonzini hwaddr phys_addr; 469c17d615SPaolo Bonzini target_ulong virt_addr; 479c17d615SPaolo Bonzini ram_addr_t length; 489c17d615SPaolo Bonzini QTAILQ_ENTRY(MemoryMapping) next; 499c17d615SPaolo Bonzini } MemoryMapping; 509c17d615SPaolo Bonzini 516d4d3ae7SAndreas Färber struct MemoryMappingList { 529c17d615SPaolo Bonzini unsigned int num; 539c17d615SPaolo Bonzini MemoryMapping *last_mapping; 549c17d615SPaolo Bonzini QTAILQ_HEAD(, MemoryMapping) head; 556d4d3ae7SAndreas Färber }; 569c17d615SPaolo Bonzini 579c17d615SPaolo Bonzini /* 589c17d615SPaolo Bonzini * add or merge the memory region [phys_addr, phys_addr + length) into the 599c17d615SPaolo Bonzini * memory mapping's list. The region's virtual address starts with virt_addr, 609c17d615SPaolo Bonzini * and is contiguous. The list is sorted by phys_addr. 619c17d615SPaolo Bonzini */ 629c17d615SPaolo Bonzini void memory_mapping_list_add_merge_sorted(MemoryMappingList *list, 639c17d615SPaolo Bonzini hwaddr phys_addr, 649c17d615SPaolo Bonzini hwaddr virt_addr, 659c17d615SPaolo Bonzini ram_addr_t length); 669c17d615SPaolo Bonzini 679c17d615SPaolo Bonzini void memory_mapping_list_free(MemoryMappingList *list); 689c17d615SPaolo Bonzini 699c17d615SPaolo Bonzini void memory_mapping_list_init(MemoryMappingList *list); 709c17d615SPaolo Bonzini 715ee163e8SLaszlo Ersek void guest_phys_blocks_free(GuestPhysBlockList *list); 725ee163e8SLaszlo Ersek void guest_phys_blocks_init(GuestPhysBlockList *list); 73c5d7f60fSLaszlo Ersek void guest_phys_blocks_append(GuestPhysBlockList *list); 745ee163e8SLaszlo Ersek 7556c4bfb3SLaszlo Ersek void qemu_get_guest_memory_mapping(MemoryMappingList *list, 7656c4bfb3SLaszlo Ersek const GuestPhysBlockList *guest_phys_blocks, 7756c4bfb3SLaszlo Ersek Error **errp); 789c17d615SPaolo Bonzini 799c17d615SPaolo Bonzini /* get guest's memory mapping without do paging(virtual address is 0). */ 8056c4bfb3SLaszlo Ersek void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list, 8156c4bfb3SLaszlo Ersek const GuestPhysBlockList *guest_phys_blocks); 829c17d615SPaolo Bonzini 839c17d615SPaolo Bonzini void memory_mapping_filter(MemoryMappingList *list, int64_t begin, 849c17d615SPaolo Bonzini int64_t length); 859c17d615SPaolo Bonzini 869c17d615SPaolo Bonzini #endif 87