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arch_init: support resizing on incoming migration 

If block used_length does not match, try to resize it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2014-11-17 17:55:43 +02:00
parent 62be4e3a50
commit b0cc3f8397
1 changed files with 8 additions and 5 deletions
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13
arch_init.c
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@ -1086,11 +1086,14 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id)
QTAILQ_FOREACH(block, &ram_list.blocks, next) {
if (!strncmp(id, block->idstr, sizeof(id))) {
if (block->used_length != length) {
error_report("Length mismatch: %s: 0x" RAM_ADDR_FMT
" in != 0x" RAM_ADDR_FMT, id, length,
block->used_length);
ret = -EINVAL;
if (length != block->used_length) {
Error *local_err = NULL;
ret = qemu_ram_resize(block->offset, length, &local_err);
if (local_err) {
error_report("%s", error_get_pretty(local_err));
error_free(local_err);
}
}
break;
}