diff options
Diffstat (limited to 'hw/virtio/vhost-vdpa.c')
| -rw-r--r-- | hw/virtio/vhost-vdpa.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index c295a8c..542e003 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -519,9 +519,18 @@ static void vhost_vdpa_host_notifiers_uninit(struct vhost_dev *dev, int n) { int i; + /* + * Pack all the changes to the memory regions in a single + * transaction to avoid a few updating of the address space + * topology. + */ + memory_region_transaction_begin(); + for (i = dev->vq_index; i < dev->vq_index + n; i++) { vhost_vdpa_host_notifier_uninit(dev, i); } + + memory_region_transaction_commit(); } static void vhost_vdpa_host_notifiers_init(struct vhost_dev *dev) @@ -534,17 +543,21 @@ static void vhost_vdpa_host_notifiers_init(struct vhost_dev *dev) return; } + /* + * Pack all the changes to the memory regions in a single + * transaction to avoid a few updating of the address space + * topology. + */ + memory_region_transaction_begin(); + for (i = dev->vq_index; i < dev->vq_index + dev->nvqs; i++) { if (vhost_vdpa_host_notifier_init(dev, i)) { - goto err; + vhost_vdpa_host_notifiers_uninit(dev, i - dev->vq_index); + break; } } - return; - -err: - vhost_vdpa_host_notifiers_uninit(dev, i - dev->vq_index); - return; + memory_region_transaction_commit(); } static void vhost_vdpa_svq_cleanup(struct vhost_dev *dev) |