migration: Define VMSTATE_INSTANCE_ID_ANY

Define the new macro VMSTATE_INSTANCE_ID_ANY for callers who wants to
auto-generate the vmstate instance ID.  Previously it was hard coded
as -1 instead of this macro.  It helps to change this default value in
the follow up patches.  No functional change.

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 10:29:30 +08:00 committed by Juan Quintela
parent 8bba004cca
commit 1df2c9a26f
15 changed files with 25 additions and 17 deletions

View file

@ -180,7 +180,7 @@ static arm_timer_state *arm_timer_init(uint32_t freq)
s->control = TIMER_CTRL_IE;
s->timer = ptimer_init(arm_timer_tick, s, PTIMER_POLICY_DEFAULT);
vmstate_register(NULL, -1, &vmstate_arm_timer, s);
vmstate_register(NULL, VMSTATE_INSTANCE_ID_ANY, &vmstate_arm_timer, s);
return s;
}