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ivshmem: use migration blockers to prevent live migration in peer mode (v2)

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Now when you try to migrate with ivshmem, you get a proper QMP error:

(qemu) migrate tcp:localhost:1025
Migration is disabled when using feature 'peer mode' in device 'ivshmem'
(qemu)

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2011-11-14 15:09:44 -06:00
parent fa2756b71b
commit 38e0735eb7
4 changed files with 18 additions and 26 deletions
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25
savevm.c
View file

@ -1255,31 +1255,6 @@ void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque)
}
}
/* mark a device as not to be migrated, that is the device should be
unplugged before migration */
void register_device_unmigratable(DeviceState *dev, const char *idstr,
void *opaque)
{
SaveStateEntry *se;
char id[256] = "";
if (dev && dev->parent_bus && dev->parent_bus->info->get_dev_path) {
char *path = dev->parent_bus->info->get_dev_path(dev);
if (path) {
pstrcpy(id, sizeof(id), path);
pstrcat(id, sizeof(id), "/");
g_free(path);
}
}
pstrcat(id, sizeof(id), idstr);
QTAILQ_FOREACH(se, &savevm_handlers, entry) {
if (strcmp(se->idstr, id) == 0 && se->opaque == opaque) {
se->no_migrate = 1;
}
}
}
int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
const VMStateDescription *vmsd,
void *opaque, int alias_id,