[Qemu-devel] [PATCH V2 0/5] Set correct blk feature for virtio 1.0

[Jason Wang <jasowang@redhat.com>]

Hi all:

This series tries to set feature correctly for virtio-blk when virtio
1.0 is supported. Two isssues were addressed according to the spec:

- scsi passthrough was not support in 1.0. This is done by, 1) disable
  scsi by defautl for 2.4 machine type and fail the initialization
  when both scsi and 1.0 were set.
- any layout must be set for transitional device. This is done by set
  any layout when 1.0 is supported.

Please review

Changes from V1:
- Split virtio-net changes out of the series
- Enable VIRTIO_BLK_F_SCSI only when scsi is set
- Disable scsi by default and compat it for legacy machine types
- Let get_features() can fail and fail the initialization of
  virito-blk when both 1.0 and scsi were supported.

Jason Wang (5):
  virtio: get_features() can fail
  virtio-blk: advertise scsi only when scsi is set
  virtio-blk: disable scsi passthrough by default
  virtio-blk: fail the init when both 1.0 and scsi is set
  virtio-blk: set VIRTIO_F_ANY_LAYOUT when 1.0 is supported

 hw/9pfs/virtio-9p-device.c  |  3 ++-
 hw/block/virtio-blk.c       | 16 +++++++++++++---
 hw/char/virtio-serial-bus.c |  3 ++-
 hw/display/virtio-gpu.c     |  3 ++-
 hw/input/virtio-input.c     |  3 ++-
 hw/net/virtio-net.c         |  3 ++-
 hw/scsi/vhost-scsi.c        |  3 ++-
 hw/scsi/virtio-scsi.c       |  3 ++-
 hw/virtio/virtio-balloon.c  |  3 ++-
 hw/virtio/virtio-bus.c      |  3 ++-
 hw/virtio/virtio-rng.c      |  2 +-
 include/hw/compat.h         |  6 +++++-
 include/hw/virtio/virtio.h  |  4 +++-
 13 files changed, 40 insertions(+), 15 deletions(-)

-- 
2.1.4