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/*
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* QEMU memory mapping
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*
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* Copyright Fujitsu, Corp. 2011, 2012
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*
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* Authors:
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* Wen Congyang <wency@cn.fujitsu.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#ifndef MEMORY_MAPPING_H
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#define MEMORY_MAPPING_H
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#include "qemu-queue.h" |
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#ifndef CONFIG_USER_ONLY
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/* The physical and virtual address in the memory mapping are contiguous. */
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typedef struct MemoryMapping { |
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target_phys_addr_t phys_addr; |
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target_ulong virt_addr; |
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ram_addr_t length; |
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QTAILQ_ENTRY(MemoryMapping) next; |
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} MemoryMapping; |
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typedef struct MemoryMappingList { |
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unsigned int num; |
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MemoryMapping *last_mapping; |
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QTAILQ_HEAD(, MemoryMapping) head; |
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} MemoryMappingList; |
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/*
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* add or merge the memory region [phys_addr, phys_addr + length) into the
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* memory mapping's list. The region's virtual address starts with virt_addr,
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* and is contiguous. The list is sorted by phys_addr.
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*/
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void memory_mapping_list_add_merge_sorted(MemoryMappingList *list,
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target_phys_addr_t phys_addr, |
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target_phys_addr_t virt_addr, |
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ram_addr_t length); |
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void memory_mapping_list_free(MemoryMappingList *list);
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void memory_mapping_list_init(MemoryMappingList *list);
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/*
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* Return value:
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* 0: success
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* -1: failed
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* -2: unsupported
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*/
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#if defined(CONFIG_HAVE_GET_MEMORY_MAPPING)
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int qemu_get_guest_memory_mapping(MemoryMappingList *list);
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#else
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static inline int qemu_get_guest_memory_mapping(MemoryMappingList *list) |
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{ |
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return -2; |
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} |
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#endif
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/* get guest's memory mapping without do paging(virtual address is 0). */
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void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list);
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void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
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int64_t length); |
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#else
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/* We use MemoryMappingList* in cpu-all.h */
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typedef struct MemoryMappingList MemoryMappingList; |
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#endif
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#endif
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