[Qemu-devel] [PATCH 3/5] arch_init: support resizing on incoming migration

[Michael S. Tsirkin]

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

Signed-off-by: Michael S. Tsirkin <address@hidden>
---
 arch_init.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch_init.c b/arch_init.c
index 593a990..bb30d01 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -1076,11 +1076,14 @@ 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->length != length) {
-                            error_report("Length mismatch: %s: 0x" RAM_ADDR_FMT
-                                         " in != 0x" RAM_ADDR_FMT, id, length,
-                                         block->length);
-                            ret =  -EINVAL;
+                        if (length != block->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;
                     }
-- 
MST