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authorSteve Sistare <steven.sistare@oracle.com>2025-03-07 12:55:53 -0800
committerFabiano Rosas <farosas@suse.de>2025-03-14 09:29:19 -0300
commitb42f28111e081ab1fd370e92ee78a461027590f0 (patch)
tree40744c779a6630a9ea94129e40d6c4568b1524df /hw/core/loader.c
parente56ba1878fefe7babff76ff399311ae5e399c5c5 (diff)
downloadfocaccia-qemu-b42f28111e081ab1fd370e92ee78a461027590f0.tar.gz
focaccia-qemu-b42f28111e081ab1fd370e92ee78a461027590f0.zip
hw/loader: fix roms during cpr
During normal migration, new QEMU creates and initializes memory regions,
then loads the preserved contents of the region from vmstate.

During CPR, memory regions are preserved in place, then the realize
method initializes the regions contents, losing the old contents.  To
fix, skip the re-init during CPR.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Message-ID: <1741380954-341079-4-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Diffstat (limited to 'hw/core/loader.c')
-rw-r--r--hw/core/loader.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/hw/core/loader.c b/hw/core/loader.c
index 332b879a0b..ce6ff1b52e 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -51,6 +51,7 @@
 #include "trace.h"
 #include "hw/hw.h"
 #include "disas/disas.h"
+#include "migration/cpr.h"
 #include "migration/vmstate.h"
 #include "monitor/monitor.h"
 #include "system/reset.h"
@@ -1029,7 +1030,9 @@ static void *rom_set_mr(Rom *rom, Object *owner, const char *name, bool ro)
     vmstate_register_ram_global(rom->mr);
 
     data = memory_region_get_ram_ptr(rom->mr);
-    memcpy(data, rom->data, rom->datasize);
+    if (!cpr_is_incoming()) {
+        memcpy(data, rom->data, rom->datasize);
+    }
 
     return data;
 }