diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2012-07-16 14:22:52 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-07-27 08:25:27 +0200 |
| commit | feda01e40f101956021077ad5c587519410d2073 (patch) | |
| tree | b5b7f71edbe28c1682235857e9687121103f4841 /hw/virtio-scsi.c | |
| parent | 2baa1beb1e47ec207e0f9bcacdb5c68e4bf1d8f5 (diff) | |
virtio-scsi: report parameter change events
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/virtio-scsi.c')
| -rw-r--r-- | hw/virtio-scsi.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/virtio-scsi.c b/hw/virtio-scsi.c index bf18861e94..c4a5b22f94 100644 --- a/hw/virtio-scsi.c +++ b/hw/virtio-scsi.c @@ -27,6 +27,7 @@ /* Feature Bits */ #define VIRTIO_SCSI_F_INOUT 0 #define VIRTIO_SCSI_F_HOTPLUG 1 +#define VIRTIO_SCSI_F_CHANGE 2 /* Response codes */ #define VIRTIO_SCSI_S_OK 0 @@ -63,6 +64,7 @@ #define VIRTIO_SCSI_T_NO_EVENT 0 #define VIRTIO_SCSI_T_TRANSPORT_RESET 1 #define VIRTIO_SCSI_T_ASYNC_NOTIFY 2 +#define VIRTIO_SCSI_T_PARAM_CHANGE 3 /* Reasons for transport reset event */ #define VIRTIO_SCSI_EVT_RESET_HARD 0 @@ -554,6 +556,7 @@ static uint32_t virtio_scsi_get_features(VirtIODevice *vdev, uint32_t requested_features) { requested_features |= (1UL << VIRTIO_SCSI_F_HOTPLUG); + requested_features |= (1UL << VIRTIO_SCSI_F_CHANGE); return requested_features; } @@ -641,6 +644,18 @@ static void virtio_scsi_handle_event(VirtIODevice *vdev, VirtQueue *vq) } } +static void virtio_scsi_change(SCSIBus *bus, SCSIDevice *dev, SCSISense sense) +{ + VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus); + + if (((s->vdev.guest_features >> VIRTIO_SCSI_F_CHANGE) & 1) && + (s->vdev.status & VIRTIO_CONFIG_S_DRIVER_OK) && + dev->type != TYPE_ROM) { + virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_PARAM_CHANGE, + sense.asc | (sense.ascq << 8)); + } +} + static void virtio_scsi_hotplug(SCSIBus *bus, SCSIDevice *dev) { VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus); @@ -670,6 +685,7 @@ static struct SCSIBusInfo virtio_scsi_scsi_info = { .complete = virtio_scsi_command_complete, .cancel = virtio_scsi_request_cancelled, + .change = virtio_scsi_change, .hotplug = virtio_scsi_hotplug, .hot_unplug = virtio_scsi_hot_unplug, .get_sg_list = virtio_scsi_get_sg_list, |