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Add API to get memory mapping without do paging

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crash does not need the virtual address and physical address mapping, and the
mapping does not include the memory that is not referenced by the page table.
crash does not use the virtual address, so we can create the mapping for all
physical memory(virtual address is always 0). This patch provides a API to do
this thing, and it will be used in the following patch.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Wen Congyang 2012-05-07 12:07:07 +08:00 committed by Luiz Capitulino
parent c517076dae
commit 2b05ab5229
2 changed files with 12 additions and 0 deletions
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9
memory_mapping.c
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@ -211,3 +211,12 @@ int qemu_get_guest_memory_mapping(MemoryMappingList *list)
return 0;
}
#endif
void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list)
{
RAMBlock *block;
QLIST_FOREACH(block, &ram_list.blocks, next) {
create_new_memory_mapping(list, block->offset, 0, block->length);
}
}

3
memory_mapping.h
View File

@ -60,6 +60,9 @@ static inline int qemu_get_guest_memory_mapping(MemoryMappingList *list)
}
#endif
/* get guest's memory mapping without do paging(virtual address is 0). */
void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list);
#else
/* We use MemoryMappingList* in cpu-all.h */