On Fri, 15 Nov 2019 04:34:30 +0100 Eric Farman <far...@linux.ibm.com> wrote:
> From: Farhan Ali <al...@linux.ibm.com> > > EIO is returned by vfio-ccw mediated device when the backing > host subchannel is not operational anymore. So return cc=3 > back to the guest, rather than returning a unit check. > This way the guest can take appropriate action such as > issue an 'stsch'. Hnm, I'm trying to recall whether that was actually a conscious choice, but I can't quite remember... the change does make sense at a glance, however. > > Signed-off-by: Farhan Ali <al...@linux.ibm.com> I would need your s-o-b for that one, though :) > --- > hw/vfio/ccw.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c > index 6863f6c69f..0919ddbeb8 100644 > --- a/hw/vfio/ccw.c > +++ b/hw/vfio/ccw.c > @@ -114,6 +114,7 @@ again: > return IOINST_CC_BUSY; > case -ENODEV: > case -EACCES: > + case -EIO: > return IOINST_CC_NOT_OPERATIONAL; > case -EFAULT: > default:
