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[Qemu-devel] [PATCH v5 12/13] vfio/ccw: update sense data if a unit chec
From: |
Dong Jia Shi |
Subject: |
[Qemu-devel] [PATCH v5 12/13] vfio/ccw: update sense data if a unit check is pending |
Date: |
Wed, 12 Apr 2017 07:21:14 +0200 |
Concurrent-sense data is currently not delivered. This patch stores
the concurrent-sense data to the subchannel if a unit check is pending
and the concurrent-sense bit is enabled. Then a TSCH can retreive the
right IRB data back to the guest.
Signed-off-by: Dong Jia Shi <address@hidden>
---
hw/vfio/ccw.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c
index ed17d6e..fd174c1 100644
--- a/hw/vfio/ccw.c
+++ b/hw/vfio/ccw.c
@@ -94,6 +94,7 @@ static void vfio_ccw_io_notifier_handler(void *opaque)
CcwDevice *ccw_dev = CCW_DEVICE(cdev);
SubchDev *sch = ccw_dev->sch;
SCSW *s = &sch->curr_status.scsw;
+ PMCW *p = &sch->curr_status.pmcw;
IRB irb;
if (!event_notifier_test_and_clear(&vcdev->io_notifier)) {
@@ -133,6 +134,12 @@ static void vfio_ccw_io_notifier_handler(void *opaque)
/* Update control block via irb. */
copy_scsw_to_guest(s, &irb.scsw);
+ /* If a uint check is pending, copy sense data. */
+ if ((s->dstat & SCSW_DSTAT_UNIT_CHECK) &&
+ (p->chars & PMCW_CHARS_MASK_CSENSE)) {
+ memcpy(sch->sense_data, irb.ecw, sizeof(irb.ecw));
+ }
+
read_err:
css_inject_io_interrupt(sch);
}
--
2.10.2
- [Qemu-devel] [PATCH v5 02/13] vfio: linux-headers update for vfio-ccw, (continued)
- [Qemu-devel] [PATCH v5 02/13] vfio: linux-headers update for vfio-ccw, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 04/13] s390x/css: realize css_sch_build_schib, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 03/13] s390x/css: add s390-squash-mcss machine option, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 05/13] s390x/css: realize css_create_sch, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 07/13] vfio/ccw: vfio based subchannel passthrough driver, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 06/13] s390x/css: device support for s390-ccw passthrough, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 08/13] vfio/ccw: get io region info, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 09/13] vfio/ccw: get irqs info and set the eventfd fd, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 10/13] s390x/css: introduce and realize ccw-request callback, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 11/13] s390x/css: ccw translation infrastructure, Dong Jia Shi, 2017/04/12
- [Qemu-devel] [PATCH v5 12/13] vfio/ccw: update sense data if a unit check is pending,
Dong Jia Shi <=
- [Qemu-devel] [PATCH v5 13/13] MAINTAINERS: Add vfio-ccw maintainer, Dong Jia Shi, 2017/04/12