Am 07.08.2012 14:19, schrieb Christian Borntraeger: > From: Eugene Dvurechenski <j...@linux.vnet.ibm.com> > > on s390 there is no usb support and the -usb option doesnt > do anything. > This patch fences all usb code for s390. > > Signed-off-by: Eugene Dvurechenski <j...@linux.vnet.ibm.com> > Signed-off-by: Christian Borntraeger <borntrae...@de.ibm.com> > --- > configure | 66 +++++++++++++++++++++++++++++++++++++++++------------ > hmp-commands.hx | 6 +++++ > hw/Makefile.objs | 5 ++- > monitor.c | 4 +++ > qemu-options.hx | 4 +++ > sysemu.h | 2 + > vl.c | 8 +++++- > 7 files changed, 76 insertions(+), 19 deletions(-)
This patch seems to be mixing two things: 1) Disabling USB host support. If System z mainframes don't have USB support, it doesn't make much sense to enable USB host passthrough. 2) Disabling USB support for guest machines. Wasn't there a recent virtio-usb RFC? In that case it would very well be possible to connect virtual USB devices (including smartcard) to the virtio s390 machine. Regards, Andreas -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg