Commit 500f0061 authored by Orit Wasserman's avatar Orit Wasserman Committed by Juan Quintela

Use qemu_put_buffer_async for guest memory pages

This will remove an unneeded copy of guest memory pages.
For the page header and device state we still copy the data to the
static buffer the other option is to allocate the memory on demand
which is more expensive.
Signed-off-by: default avatarOrit Wasserman <>
Signed-off-by: default avatarJuan Quintela <>
parent 6181ec24
......@@ -478,7 +478,7 @@ static int ram_save_block(QEMUFile *f, bool last_stage)
/* XBZRLE overflow or normal page */
if (bytes_sent == -1) {
bytes_sent = save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE);
qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
qemu_put_buffer_async(f, p, TARGET_PAGE_SIZE);
bytes_sent += TARGET_PAGE_SIZE;
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