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| author | Eugenio Pérez | 2022-08-23 20:20:02 +0200 |
|---|---|---|
| committer | Jason Wang | 2022-09-02 04:22:39 +0200 |
| commit | 10dab9f2635b9bab23a2b29974b526e62bb61268 (patch) | |
| tree | 0ce161cbbdb97d1b204d257997a016dc20caf606 | |
| parent | Merge tag 'pull-ppc-20220831' of https://gitlab.com/danielhb/qemu into staging (diff) | |
| download | qemu-10dab9f2635b9bab23a2b29974b526e62bb61268.tar.gz qemu-10dab9f2635b9bab23a2b29974b526e62bb61268.tar.xz qemu-10dab9f2635b9bab23a2b29974b526e62bb61268.zip | |
vdpa: Skip the maps not in the iova tree
Next patch will skip the registering of dma maps that the vdpa device
rejects in the iova tree. We need to consider that here or we cause a
SIGSEGV accessing result.
Reported-by: Lei Yang <leiyang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
| -rw-r--r-- | hw/virtio/vhost-vdpa.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 3ff9ce3501..983d3697b0 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -289,6 +289,10 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener, }; result = vhost_iova_tree_find_iova(v->iova_tree, &mem_region); + if (!result) { + /* The memory listener map wasn't mapped */ + return; + } iova = result->iova; vhost_iova_tree_remove(v->iova_tree, result); } |