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numa: Make all callbacks of ram block notifiers optional

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Let's make add/remove optional. We want to introduce a RAM block
notifier for RAM migration that is only interested in resize events.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210429112708.12291-4-david@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
David Hildenbrand 2021-04-29 13:27:01 +02:00 committed by Dr. David Alan Gilbert
parent 8f44304c76
commit e15c7d1e8c
1 changed files with 10 additions and 3 deletions
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13
hw/core/numa.c
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@ -818,8 +818,11 @@ static int ram_block_notify_add_single(RAMBlock *rb, void *opaque)
void ram_block_notifier_add(RAMBlockNotifier *n)
{
QLIST_INSERT_HEAD(&ram_list.ramblock_notifiers, n, next);
/* Notify about all existing ram blocks. */
qemu_ram_foreach_block(ram_block_notify_add_single, n);
if (n->ram_block_added) {
qemu_ram_foreach_block(ram_block_notify_add_single, n);
}
}
void ram_block_notifier_remove(RAMBlockNotifier *n)
@ -832,7 +835,9 @@ void ram_block_notify_add(void *host, size_t size, size_t max_size)
RAMBlockNotifier *notifier;
QLIST_FOREACH(notifier, &ram_list.ramblock_notifiers, next) {
notifier->ram_block_added(notifier, host, size, max_size);
if (notifier->ram_block_added) {
notifier->ram_block_added(notifier, host, size, max_size);
}
}
}
@ -841,7 +846,9 @@ void ram_block_notify_remove(void *host, size_t size, size_t max_size)
RAMBlockNotifier *notifier;
QLIST_FOREACH(notifier, &ram_list.ramblock_notifiers, next) {
notifier->ram_block_removed(notifier, host, size, max_size);
if (notifier->ram_block_removed) {
notifier->ram_block_removed(notifier, host, size, max_size);
}
}
}