diff options
| -rw-r--r-- | hw/s390x/css.c | 16 | ||||
| -rw-r--r-- | hw/s390x/s390-ccw.c | 1 | ||||
| -rw-r--r-- | hw/vfio/ccw.c | 4 | ||||
| -rw-r--r-- | include/hw/s390x/css.h | 3 |
4 files changed, 23 insertions, 1 deletions
diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 1a3aad5..133ddea 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -1335,7 +1335,7 @@ static void copy_schib_to_guest(SCHIB *dest, const SCHIB *src) } } -static void copy_esw_to_guest(ESW *dest, const ESW *src) +void copy_esw_to_guest(ESW *dest, const ESW *src) { dest->word0 = cpu_to_be32(src->word0); dest->erw = cpu_to_be32(src->erw); @@ -1650,6 +1650,20 @@ static void build_irb_sense_data(SubchDev *sch, IRB *irb) } } +void build_irb_passthrough(SubchDev *sch, IRB *irb) +{ + /* Copy ESW from hardware */ + irb->esw = sch->esw; + + /* + * If (irb->esw.erw & ESW_ERW_SENSE) is true, then the contents + * of the ECW is sense data. If false, then it is model-dependent + * information. Either way, copy it into the IRB for the guest to + * read/decide what to do with. + */ + build_irb_sense_data(sch, irb); +} + void build_irb_virtual(SubchDev *sch, IRB *irb) { SCHIB *schib = &sch->curr_status; diff --git a/hw/s390x/s390-ccw.c b/hw/s390x/s390-ccw.c index c227c77..2fc8bb9 100644 --- a/hw/s390x/s390-ccw.c +++ b/hw/s390x/s390-ccw.c @@ -124,6 +124,7 @@ static void s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp) } sch->driver_data = cdev; sch->do_subchannel_work = do_subchannel_work_passthrough; + sch->irb_cb = build_irb_passthrough; ccw_dev->sch = sch; ret = css_sch_build_schib(sch, &cdev->hostid); diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c index 139a3d9..000992f 100644 --- a/hw/vfio/ccw.c +++ b/hw/vfio/ccw.c @@ -321,6 +321,7 @@ static void vfio_ccw_io_notifier_handler(void *opaque) SCHIB *schib = &sch->curr_status; SCSW s; IRB irb; + ESW esw; int size; if (!event_notifier_test_and_clear(&vcdev->io_notifier)) { @@ -371,6 +372,9 @@ static void vfio_ccw_io_notifier_handler(void *opaque) copy_scsw_to_guest(&s, &irb.scsw); schib->scsw = s; + copy_esw_to_guest(&esw, &irb.esw); + sch->esw = esw; + /* If a uint check is pending, copy sense data. */ if ((schib->scsw.dstat & SCSW_DSTAT_UNIT_CHECK) && (schib->pmcw.chars & PMCW_CHARS_MASK_CSENSE)) { diff --git a/include/hw/s390x/css.h b/include/hw/s390x/css.h index 7c23a13..10ed1df 100644 --- a/include/hw/s390x/css.h +++ b/include/hw/s390x/css.h @@ -141,6 +141,7 @@ struct SubchDev { void (*irb_cb)(SubchDev *, IRB *); SenseId id; void *driver_data; + ESW esw; }; static inline void sch_gen_unit_exception(SubchDev *sch) @@ -202,6 +203,7 @@ int css_sch_build_schib(SubchDev *sch, CssDevId *dev_id); unsigned int css_find_free_chpid(uint8_t cssid); uint16_t css_build_subchannel_id(SubchDev *sch); void copy_scsw_to_guest(SCSW *dest, const SCSW *src); +void copy_esw_to_guest(ESW *dest, const ESW *src); void css_inject_io_interrupt(SubchDev *sch); void css_reset(void); void css_reset_sch(SubchDev *sch); @@ -216,6 +218,7 @@ void css_clear_sei_pending(void); IOInstEnding s390_ccw_cmd_request(SubchDev *sch); IOInstEnding do_subchannel_work_virtual(SubchDev *sub); IOInstEnding do_subchannel_work_passthrough(SubchDev *sub); +void build_irb_passthrough(SubchDev *sch, IRB *irb); void build_irb_virtual(SubchDev *sch, IRB *irb); int s390_ccw_halt(SubchDev *sch); |