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" 199c17d615SPaolo Bonzini 20*5ee163e8SLaszlo Ersek typedef struct GuestPhysBlock { 21*5ee163e8SLaszlo Ersek /* visible to guest, reflects PCI hole, etc */ 22*5ee163e8SLaszlo Ersek hwaddr target_start; 23*5ee163e8SLaszlo Ersek 24*5ee163e8SLaszlo Ersek /* implies size */ 25*5ee163e8SLaszlo Ersek hwaddr target_end; 26*5ee163e8SLaszlo Ersek 27*5ee163e8SLaszlo Ersek /* points into host memory */ 28*5ee163e8SLaszlo Ersek uint8_t *host_addr; 29*5ee163e8SLaszlo Ersek 30*5ee163e8SLaszlo Ersek QTAILQ_ENTRY(GuestPhysBlock) next; 31*5ee163e8SLaszlo Ersek } GuestPhysBlock; 32*5ee163e8SLaszlo Ersek 33*5ee163e8SLaszlo Ersek /* point-in-time snapshot of guest-visible physical mappings */ 34*5ee163e8SLaszlo Ersek typedef struct GuestPhysBlockList { 35*5ee163e8SLaszlo Ersek unsigned num; 36*5ee163e8SLaszlo Ersek QTAILQ_HEAD(GuestPhysBlockHead, GuestPhysBlock) head; 37*5ee163e8SLaszlo Ersek } GuestPhysBlockList; 38*5ee163e8SLaszlo Ersek 399c17d615SPaolo Bonzini /* The physical and virtual address in the memory mapping are contiguous. */ 409c17d615SPaolo Bonzini typedef struct MemoryMapping { 419c17d615SPaolo Bonzini hwaddr phys_addr; 429c17d615SPaolo Bonzini target_ulong virt_addr; 439c17d615SPaolo Bonzini ram_addr_t length; 449c17d615SPaolo Bonzini QTAILQ_ENTRY(MemoryMapping) next; 459c17d615SPaolo Bonzini } MemoryMapping; 469c17d615SPaolo Bonzini 476d4d3ae7SAndreas Färber struct MemoryMappingList { 489c17d615SPaolo Bonzini unsigned int num; 499c17d615SPaolo Bonzini MemoryMapping *last_mapping; 509c17d615SPaolo Bonzini QTAILQ_HEAD(, MemoryMapping) head; 516d4d3ae7SAndreas Färber }; 529c17d615SPaolo Bonzini 539c17d615SPaolo Bonzini /* 549c17d615SPaolo Bonzini * add or merge the memory region [phys_addr, phys_addr + length) into the 559c17d615SPaolo Bonzini * memory mapping's list. The region's virtual address starts with virt_addr, 569c17d615SPaolo Bonzini * and is contiguous. The list is sorted by phys_addr. 579c17d615SPaolo Bonzini */ 589c17d615SPaolo Bonzini void memory_mapping_list_add_merge_sorted(MemoryMappingList *list, 599c17d615SPaolo Bonzini hwaddr phys_addr, 609c17d615SPaolo Bonzini hwaddr virt_addr, 619c17d615SPaolo Bonzini ram_addr_t length); 629c17d615SPaolo Bonzini 639c17d615SPaolo Bonzini void memory_mapping_list_free(MemoryMappingList *list); 649c17d615SPaolo Bonzini 659c17d615SPaolo Bonzini void memory_mapping_list_init(MemoryMappingList *list); 669c17d615SPaolo Bonzini 67*5ee163e8SLaszlo Ersek void guest_phys_blocks_free(GuestPhysBlockList *list); 68*5ee163e8SLaszlo Ersek void guest_phys_blocks_init(GuestPhysBlockList *list); 69*5ee163e8SLaszlo Ersek 7011ed09cfSAndreas Färber void qemu_get_guest_memory_mapping(MemoryMappingList *list, Error **errp); 719c17d615SPaolo Bonzini 729c17d615SPaolo Bonzini /* get guest's memory mapping without do paging(virtual address is 0). */ 739c17d615SPaolo Bonzini void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list); 749c17d615SPaolo Bonzini 759c17d615SPaolo Bonzini void memory_mapping_filter(MemoryMappingList *list, int64_t begin, 769c17d615SPaolo Bonzini int64_t length); 779c17d615SPaolo Bonzini 789c17d615SPaolo Bonzini #endif 79