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/*
* 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. See
* the COPYING file in the top-level directory.
*
*/
#ifndef MEMORY_MAPPING_H
#define MEMORY_MAPPING_H
#include "qemu-queue.h"
#ifndef CONFIG_USER_ONLY
/* The physical and virtual address in the memory mapping are contiguous. */
typedef struct MemoryMapping {
target_phys_addr_t phys_addr;
target_ulong virt_addr;
ram_addr_t length;
QTAILQ_ENTRY(MemoryMapping) next;
} MemoryMapping;
typedef struct MemoryMappingList {
unsigned int num;
MemoryMapping *last_mapping;
QTAILQ_HEAD(, MemoryMapping) head;
} MemoryMappingList;
/*
* 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,
target_phys_addr_t phys_addr,
target_phys_addr_t virt_addr,
ram_addr_t length);
void memory_mapping_list_free(MemoryMappingList *list);
void memory_mapping_list_init(MemoryMappingList *list);
/*
* Return value:
* 0: success
* -1: failed
* -2: unsupported
*/
#if defined(CONFIG_HAVE_GET_MEMORY_MAPPING)
int qemu_get_guest_memory_mapping(MemoryMappingList *list);
#else
static inline int qemu_get_guest_memory_mapping(MemoryMappingList *list)
{
return -2;
}
#endif
/* get guest's memory mapping without do paging(virtual address is 0). */
void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list);
void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
int64_t length);
#else
/* We use MemoryMappingList* in cpu-all.h */
typedef struct MemoryMappingList MemoryMappingList;
#endif
#endif
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