On Fri, Nov 23, 2012 at 04:08:44PM +1100, David Gibson wrote: > The virtio-scsi specification does not specify the correct endianness for > fields in the request structure. It's therefore best to assume that it is > "guest native" endian since that's the (stupid and poorly defined) norm in > virtio. > > However, the qemu device for virtio-scsi has no byteswaps at all, and so > will break if the guest has different endianness from the host. This patch > fixes it by adding tswap() calls for the sense_len and resid fields in > the request structure. In theory status_qualifier needs swaps as well, > but that field is never actually touched. The tag field is a uint64_t, but > since its value is completely arbitrary, it might as well be uint8_t[8] > and so it does not need swapping. > > Cc: Paolo Bonzini <pbonz...@redhat.com> > Cc: Paul 'Rusty' Russell <ru...@rustcorp.com.au> > Signed-off-by: David Gibson <da...@gibson.dropbear.id.au> > --- > hw/virtio-scsi.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-)
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
