Let's make add/remove optional. We want to introduce a RAM block
notifier for RAM migration, that's only interested in resizes.
Cc: Richard Henderson <rth@twiddle.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
hw/core/numa.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/hw/core/numa.c b/hw/core/numa.c
index e28ad24fcd..4270b268c8 100644
--- a/hw/core/numa.c
+++ b/hw/core/numa.c
@@ -915,8 +915,11 @@ 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)
@@ -929,7 +932,9 @@ 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);
+ }
}
}
@@ -938,7 +943,9 @@ 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);
+ }
}
}
--
2.24.1