| /* |
| * QEMU memory mapping |
| * |
| * Copyright Fujitsu, Corp. 2011, 2012 |
| * |
| * Authors: |
| * Wen Congyang <wency@cn.fujitsu.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| * |
| */ |
| |
| #ifndef MEMORY_MAPPING_H |
| #define MEMORY_MAPPING_H |
| |
| #include "qemu/queue.h" |
| #include "qemu/typedefs.h" |
| #include "exec/memory.h" |
| |
| typedef struct GuestPhysBlock { |
| /* visible to guest, reflects PCI hole, etc */ |
| hwaddr target_start; |
| |
| /* implies size */ |
| hwaddr target_end; |
| |
| /* points into host memory */ |
| uint8_t *host_addr; |
| |
| /* points to the MemoryRegion that this block belongs to */ |
| MemoryRegion *mr; |
| |
| QTAILQ_ENTRY(GuestPhysBlock) next; |
| } GuestPhysBlock; |
| |
| /* point-in-time snapshot of guest-visible physical mappings */ |
| typedef struct GuestPhysBlockList { |
| unsigned num; |
| QTAILQ_HEAD(GuestPhysBlockHead, GuestPhysBlock) head; |
| } GuestPhysBlockList; |
| |
| /* The physical and virtual address in the memory mapping are contiguous. */ |
| typedef struct MemoryMapping { |
| hwaddr phys_addr; |
| target_ulong virt_addr; |
| ram_addr_t length; |
| QTAILQ_ENTRY(MemoryMapping) next; |
| } MemoryMapping; |
| |
| struct MemoryMappingList { |
| unsigned int num; |
| MemoryMapping *last_mapping; |
| QTAILQ_HEAD(, MemoryMapping) head; |
| }; |
| |
| /* |
| * add or merge the memory region [phys_addr, phys_addr + length) into the |
| * memory mapping's list. The region's virtual address starts with virt_addr, |
| * and is contiguous. The list is sorted by phys_addr. |
| */ |
| void memory_mapping_list_add_merge_sorted(MemoryMappingList *list, |
| hwaddr phys_addr, |
| hwaddr virt_addr, |
| ram_addr_t length); |
| |
| void memory_mapping_list_free(MemoryMappingList *list); |
| |
| void memory_mapping_list_init(MemoryMappingList *list); |
| |
| void guest_phys_blocks_free(GuestPhysBlockList *list); |
| void guest_phys_blocks_init(GuestPhysBlockList *list); |
| void guest_phys_blocks_append(GuestPhysBlockList *list); |
| |
| void qemu_get_guest_memory_mapping(MemoryMappingList *list, |
| const GuestPhysBlockList *guest_phys_blocks, |
| Error **errp); |
| |
| /* get guest's memory mapping without do paging(virtual address is 0). */ |
| void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list, |
| const GuestPhysBlockList *guest_phys_blocks); |
| |
| void memory_mapping_filter(MemoryMappingList *list, int64_t begin, |
| int64_t length); |
| |
| #endif |