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css: fix actl handling for unit exceptions

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When a subchannel becomes pending with unit exception, start
pending (and for that matter, halt or clear pending) are not
removed in the actl. Device active and subchannel active,
however, are (due to the subchannel becoming status pending
with primary respectively secondary status).

The other conditions in the actl are only cleared when the
guest executes tsch on the subchannel.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Tested-by: Jared Rossi <jrossi@linux.ibm.com>
Message-Id: <20210705163952.736020-3-cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Cornelia Huck 2021-07-05 18:39:52 +02:00 committed by Thomas Huth
parent 759a5d3be0
commit 89c6722da2
1 changed files with 2 additions and 1 deletions
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3
include/hw/s390x/css.h
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@ -146,7 +146,8 @@ struct SubchDev {
static inline void sch_gen_unit_exception(SubchDev *sch)
{
sch->curr_status.scsw.ctrl &= ~SCSW_ACTL_START_PEND;
sch->curr_status.scsw.ctrl &= ~(SCSW_ACTL_DEVICE_ACTIVE |
SCSW_ACTL_SUBCH_ACTIVE);
sch->curr_status.scsw.ctrl |= SCSW_STCTL_PRIMARY |
SCSW_STCTL_SECONDARY |
SCSW_STCTL_ALERT |