This makes migration from older QEMU versions
more robust.
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/core/loader.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/core/loader.c b/hw/core/loader.c
index ad6ec67..fc00a87 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -745,6 +745,13 @@ void *rom_add_blob_resizeable(const char *name, const void
*blob,
if (rom_file_has_mr) {
data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
+ /* If there's padding at tail, blob is resizeable.
+ * Set flag to allow migration from older QEMU versions
+ * where this region could have been smaller.
+ */
+ if (max_len != len) {
+ memory_region_permit_extendable_migration(rom->mr);
+ }
} else {
data = rom->data;
}
--
MST
