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由 Dr. David Alan Gilbert 提交于
In postcopy, the destination guest is running at the same time as it's receiving pages; as we receive new pages we must put them into the guests address space atomically to avoid a running CPU accessing a partially written page. Use the helpers in postcopy-ram.c to map these pages. qemu_get_buffer_in_place is used to avoid a copy out of qemu_file in the case that postcopy is going to do a copy anyway. Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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