Re: [PATCH] virtio-blk: drop deprecated scsi=on|off property

The scsi=on|off property was deprecated in QEMU 5.0 and can be removed completely at this point. Drop the scsi=on|off option. It was only available on Legacy virtio-blk devices. Linux v5.6 already dropped support for it. Remove the hw_compat_2_4[] property assignment since scsi=on|off no longer exists. Old guests with Legacy virtio-blk devices no longer see the SCSI host features bit. Live migrating old guests from an old QEMU with the SCSI feature bit enabled will fail with "Features 0x... unsupported. Allowed features: 0x...". We've followed the QEMU deprecation policy so users have been warned... I have tested that libvirt still works when the property is absent. It no longer adds scsi=on|off to the command-line. Cc: Markus Armbruster <armbru(a)redhat.com&gt; Cc: Christoph Hellwig <hch(a)lst.de&gt; Cc: Peter Krempa <pkrempa(a)redhat.com&gt; Cc: Dr. David Alan Gilbert <dgilbert(a)redhat.com&gt; Signed-off-by: Stefan Hajnoczi <stefanha(a)redhat.com&gt; --- docs/specs/tpm.rst | 2 +- docs/system/deprecated.rst | 13 --- docs/pci_expander_bridge.txt | 2 +- hw/block/virtio-blk.c | 192 +---------------------------------- hw/core/machine.c | 2 - 5 files changed, 3 insertions(+), 208 deletions(-)