diff options
| author | Jason Wang <jasowang@redhat.com> | 2021-04-15 15:33:56 +0800 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2021-06-11 10:30:13 +0800 |
| commit | d0416d487bd561526486c2e43910ea9494855e16 (patch) | |
| tree | 5e5be588c02f5778658c1d6981124cf72c515a4d /include | |
| parent | d60c75d28fe9d49bef28f7fa863481e1d9f6ff96 (diff) | |
| download | qemu-d0416d487bd561526486c2e43910ea9494855e16.zip | |
vhost-vdpa: map virtqueue notification area if possible
This patch implements the vq notification mapping support for
vhost-vDPA. This is simply done by using mmap()/munmap() for the
vhost-vDPA fd during device start/stop. For the device without
notification mapping support, we fall back to eventfd based
notification gracefully.
Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/virtio/vhost-vdpa.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h index ae9ee7adb2..9188226d8b 100644 --- a/include/hw/virtio/vhost-vdpa.h +++ b/include/hw/virtio/vhost-vdpa.h @@ -14,11 +14,17 @@ #include "hw/virtio/virtio.h" +typedef struct VhostVDPAHostNotifier { + MemoryRegion mr; + void *addr; +} VhostVDPAHostNotifier; + typedef struct vhost_vdpa { int device_fd; uint32_t msg_type; MemoryListener listener; struct vhost_dev *dev; + VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX]; } VhostVDPA; #endif |