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| author | Yuwei Zhang <zhangyuwei.9149@bytedance.com> | 2021-08-30 20:34:33 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-09-04 17:34:05 -0400 |
| commit | c6effa9cf59f0191865f2f65d8a7398abff0490f (patch) | |
| tree | 133db9e1b5e4f79f4666500d4ed7458df0c63e15 /hw/virtio/vhost-user.c | |
| parent | b116d6c319661b59d0461f771f407e47f54a8c80 (diff) | |
| download | focaccia-qemu-c6effa9cf59f0191865f2f65d8a7398abff0490f.tar.gz focaccia-qemu-c6effa9cf59f0191865f2f65d8a7398abff0490f.zip | |
hw/virtio: Add flatview update in vhost_user_cleanup()
Qemu will crash on vhost backend unexpected exit and re-connect │ in some case due to access released memory. Signed-off-by: Yuwei Zhang <zhangyuwei.9149@bytedance.com> Message-Id: <20210830123433.45727-1-zhangyuwei.9149@bytedance.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio/vhost-user.c')
| -rw-r--r-- | hw/virtio/vhost-user.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index 360d9bc040..2c8556237f 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -2480,7 +2480,7 @@ void vhost_user_cleanup(VhostUserState *user) if (!user->chr) { return; } - + memory_region_transaction_begin(); for (i = 0; i < VIRTIO_QUEUE_MAX; i++) { if (user->notifier[i].addr) { object_unparent(OBJECT(&user->notifier[i].mr)); @@ -2488,6 +2488,7 @@ void vhost_user_cleanup(VhostUserState *user) user->notifier[i].addr = NULL; } } + memory_region_transaction_commit(); user->chr = NULL; } |