[Qemu-devel] [PATCH v3 0/4] usb-msd: Add usb-storage, removable=on|off property

[Stefan Hajnoczi]

Allow overriding the SCSI INQUIRY removable (RMB) bit for scsi-disk and usb-msd
devices.  In particular this addresses the problem that some usb-msd devices
have the bit set while other do not have it set.  Now the user can choose and
get desired guest behavior.

qemu -usb
     -drive if=none,file=test.img,cache=none,id=disk0
     -device usb-storage,drive=disk0,removable=on

The default is off.

v3:
 * Document removable property in qdev-device-use.txt
 * Use bit number 0 instead of bit 1 for the qdev property

v2:
 * Rewritten to override the bit at the scsi-disk level

 docs/qdev-device-use.txt |   13 +++++++++++--
 hw/pci-hotplug.c         |    2 +-
 hw/scsi-bus.c            |    8 ++++++--
 hw/scsi-disk.c           |    3 +++
 hw/scsi.h                |    3 ++-
 hw/usb-msd.c             |    4 +++-
 6 files changed, 26 insertions(+), 7 deletions(-)