From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: Eduardo Habkost <ehabkost@redhat.com>,
Juan Quintela <quintela@redhat.com>,
David Hildenbrand <david@redhat.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
Peter Xu <peterx@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <rth@twiddle.net>
Subject: [PATCH v1 04/13] numa: Make all callbacks of ram block notifiers optional
Date: Wed, 19 Feb 2020 17:17:16 +0100 [thread overview]
Message-ID: <20200219161725.115218-5-david@redhat.com> (raw)
In-Reply-To: <20200219161725.115218-1-david@redhat.com>
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
next prev parent reply other threads:[~2020-02-19 16:41 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-19 16:17 [PATCH v1 00/13] migrate/ram: Fix resizing RAM blocks while migrating David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 01/13] util: vfio-helpers: Factor out and fix processing of existing ram blocks David Hildenbrand
2020-02-19 20:48 ` Peter Xu
2020-02-19 16:17 ` [PATCH v1 02/13] stubs/ram-block: Remove stubs that are no longer needed David Hildenbrand
2020-02-19 20:48 ` Peter Xu
2020-02-19 16:17 ` [PATCH v1 03/13] numa: Teach ram block notifiers about resizeable ram blocks David Hildenbrand
2020-02-19 20:48 ` Peter Xu
2020-02-19 16:17 ` David Hildenbrand [this message]
2020-02-19 20:49 ` [PATCH v1 04/13] numa: Make all callbacks of ram block notifiers optional Peter Xu
2020-02-19 16:17 ` [PATCH v1 05/13] migrate/ram: Handle RAM block resizes during precopy David Hildenbrand
2020-02-20 15:16 ` David Hildenbrand
2020-02-20 20:17 ` Peter Xu
2020-02-21 9:18 ` David Hildenbrand
2020-02-21 10:10 ` David Hildenbrand
2020-02-21 10:19 ` David Hildenbrand
2020-02-21 16:35 ` Peter Xu
2020-02-21 15:14 ` Dr. David Alan Gilbert
2020-02-21 15:18 ` David Hildenbrand
2020-02-21 15:40 ` Dr. David Alan Gilbert
2020-02-21 15:46 ` David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 06/13] migrate/ram: Discard new RAM when growing RAM blocks and the VM is stopped David Hildenbrand
2020-02-21 9:08 ` David Hildenbrand
2020-02-21 15:51 ` Dr. David Alan Gilbert
2020-02-21 15:53 ` David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 07/13] migrate/ram: Get rid of "place_source" in ram_load_postcopy() David Hildenbrand
2020-02-19 20:47 ` Peter Xu
2020-02-19 20:55 ` Peter Xu
2020-02-20 13:22 ` David Hildenbrand
2020-02-20 13:48 ` Peter Xu
2020-02-20 9:24 ` David Hildenbrand
2020-02-20 18:58 ` Dr. David Alan Gilbert
2020-02-19 16:17 ` [PATCH v1 08/13] migrate/ram: Simplify host page handling " David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 09/13] migrate/ram: Consolidate variable reset after placement " David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 10/13] migrate/ram: Handle RAM block resizes during postcopy David Hildenbrand
2020-02-20 20:54 ` Peter Xu
2020-02-21 8:35 ` David Hildenbrand
2020-02-21 8:41 ` David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 11/13] migrate/multifd: Print used_length of memory block David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 12/13] migrate/ram: Use offset_in_ramblock() in range checks David Hildenbrand
2020-02-19 16:17 ` [PATCH v1 13/13] migrate/ram: Tolerate partially changed mappings in postcopy code David Hildenbrand
2020-02-20 11:24 ` David Hildenbrand
2020-02-20 21:07 ` Peter Xu
2020-02-21 8:48 ` David Hildenbrand
2020-02-21 12:13 ` [PATCH v1 00/13] migrate/ram: Fix resizing RAM blocks while migrating David Hildenbrand
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