migration: Change SaveStateEntry.instance_id into uint32_t

It was always used as 32bit, so define it as used to be clear.
Instead of using -1 as the auto-gen magic value, we switch to
UINT32_MAX.  We also make sure that we don't auto-gen this value to
avoid overflowed instance IDs without being noticed.

Suggested-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Peter Xu 2019-10-16 10:29:31 +08:00 committed by Juan Quintela
parent 1df2c9a26f
commit 93062e2361
5 changed files with 14 additions and 12 deletions

View file

@ -268,7 +268,7 @@ static void apic_common_realize(DeviceState *dev, Error **errp)
APICCommonState *s = APIC_COMMON(dev);
APICCommonClass *info;
static DeviceState *vapic;
int instance_id = s->id;
uint32_t instance_id = s->id;
info = APIC_COMMON_GET_CLASS(s);
info->realize(dev, errp);