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memory: move mem_path handling to memory_region_allocate_system_memory

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Like the previous patch did in exec.c, split memory_region_init_ram and
memory_region_init_ram_from_file, and push mem_path one step further up.
Other RAM regions than system memory will now be backed by regular RAM.

Also, boards that do not use memory_region_allocate_system_memory will
not support -mem-path anymore.  This can be changed before the patches
are merged by migrating boards to use the function.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Bonzini 2014-05-14 17:43:19 +08:00 • committed by Michael S. Tsirkin
parent 7febe36f9a
commit 0b183fc871
4 changed files with 46 additions and 14 deletions
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11
numa.c
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@ -228,7 +228,16 @@ static void allocate_system_memory_nonnuma(MemoryRegion *mr, Object *owner,
const char *name,
uint64_t ram_size)
{
memory_region_init_ram(mr, owner, name, ram_size);
if (mem_path) {
#ifdef __linux__
memory_region_init_ram_from_file(mr, owner, name, ram_size, mem_path);
#else
fprintf(stderr, "-mem-path not supported on this host\n");
exit(1);
#endif
} else {
memory_region_init_ram(mr, owner, name, ram_size);
}
vmstate_register_ram_global(mr);
}