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hostmem: allow preallocation of any memory region

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And allow preallocation of file-based memory even without -mem-prealloc.
Some care is necessary because -mem-prealloc does not allow disabling
preallocation for hostmem-file.

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 2014-06-10 19:15:23 +08:00 • committed by Michael S. Tsirkin
parent 605d0a945d
commit a35ba7be4b
7 changed files with 75 additions and 0 deletions
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include/sysemu/hostmem.h
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@ -53,6 +53,7 @@ struct HostMemoryBackend {
/* protected */
uint64_t size;
bool merge, dump;
bool prealloc, force_prealloc;
MemoryRegion mr;
};