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| author | Igor Mammedov <imammedo@redhat.com> | 2015-10-06 10:37:27 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-10-22 14:34:48 +0300 |
| commit | 2ce68e4cf5be9b5176a3c3c372948d6340724d2d (patch) | |
| tree | 1454cb042a4b1ca1280dfda03bcaa1307dadb6f8 /hw/virtio/vhost-user.c | |
| parent | 052bd52fa978d3f04bc476137ad6e1b9a697f9bd (diff) | |
| download | focaccia-qemu-2ce68e4cf5be9b5176a3c3c372948d6340724d2d.tar.gz focaccia-qemu-2ce68e4cf5be9b5176a3c3c372948d6340724d2d.zip | |
vhost: add vhost_has_free_slot() interface
it will allow for other parts of QEMU check if it's safe to map memory region during hotplug/runtime. That way hotplug path will have a chance to cancel hotplug operation instead of crashing in vhost_commit(). Signed-off-by: Igor Mammedov <imammedo@redhat.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 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index b11c0d21a0..9585637d07 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -440,6 +440,11 @@ static int vhost_user_get_vq_index(struct vhost_dev *dev, int idx) return idx; } +static int vhost_user_memslots_limit(struct vhost_dev *dev) +{ + return VHOST_MEMORY_MAX_NREGIONS; +} + const VhostOps user_ops = { .backend_type = VHOST_BACKEND_TYPE_USER, .vhost_call = vhost_user_call, @@ -447,4 +452,5 @@ const VhostOps user_ops = { .vhost_backend_cleanup = vhost_user_cleanup, .vhost_backend_get_vq_index = vhost_user_get_vq_index, .vhost_backend_set_vring_enable = vhost_user_set_vring_enable, + .vhost_backend_memslots_limit = vhost_user_memslots_limit, }; |