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| author | Paolo Bonzini <pbonzini@redhat.com> | 2014-01-23 14:38:13 +0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-01-23 14:38:13 +0400 |
| commit | c760f5e29d92adf5184589f1e616a4be146fb57c (patch) | |
| tree | eae46255f2a1633fc29df5430989f3cfbb799b40 /drivers/s390/kvm/virtio_ccw.c | |
| parent | 0dc3fd0249a295863900984e02dd4bb89204205b (diff) | |
| parent | 19e4735bd7f02bd38db43a8521377b35f236b3b6 (diff) | |
| download | linux-c760f5e29d92adf5184589f1e616a4be146fb57c.tar.xz | |
Merge tag 'kvm-s390-20140117' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-queue
This deals with 2 guest features that need enablement in the kvm host:
- transactional execution
- lpp sampling support
In addition there is also a fix to the virtio-ccw guest driver. This will
enable future features
Diffstat (limited to 'drivers/s390/kvm/virtio_ccw.c')
| -rw-r--r-- | drivers/s390/kvm/virtio_ccw.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c index d6297176ab85..0fc584832001 100644 --- a/drivers/s390/kvm/virtio_ccw.c +++ b/drivers/s390/kvm/virtio_ccw.c @@ -642,8 +642,15 @@ static void virtio_ccw_int_handler(struct ccw_device *cdev, (SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND))) { /* OK */ } - if (irb_is_error(irb)) - vcdev->err = -EIO; /* XXX - use real error */ + if (irb_is_error(irb)) { + /* Command reject? */ + if ((scsw_dstat(&irb->scsw) & DEV_STAT_UNIT_CHECK) && + (irb->ecw[0] & SNS0_CMD_REJECT)) + vcdev->err = -EOPNOTSUPP; + else + /* Map everything else to -EIO. */ + vcdev->err = -EIO; + } if (vcdev->curr_io & activity) { switch (activity) { case VIRTIO_CCW_DOING_READ_FEAT: |