diff options
| -rw-r--r-- | hw/s390x/css.c | 11 | ||||
| -rw-r--r-- | target-s390x/cpu.h | 2 | ||||
| -rw-r--r-- | target-s390x/ioinst.c | 2 |
3 files changed, 9 insertions, 6 deletions
diff --git a/hw/s390x/css.c b/hw/s390x/css.c index 85f6f22a7f..e526a1c86c 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -988,15 +988,18 @@ int css_do_rchp(uint8_t cssid, uint8_t chpid) return 0; } -bool css_schid_final(uint8_t cssid, uint8_t ssid, uint16_t schid) +bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid) { SubchSet *set; + uint8_t real_cssid; - if (cssid > MAX_CSSID || ssid > MAX_SSID || !channel_subsys->css[cssid] || - !channel_subsys->css[cssid]->sch_set[ssid]) { + real_cssid = (!m && (cssid == 0)) ? channel_subsys->default_cssid : cssid; + if (real_cssid > MAX_CSSID || ssid > MAX_SSID || + !channel_subsys->css[real_cssid] || + !channel_subsys->css[real_cssid]->sch_set[ssid]) { return true; } - set = channel_subsys->css[cssid]->sch_set[ssid]; + set = channel_subsys->css[real_cssid]->sch_set[ssid]; return schid > find_last_bit(set->schids_used, (MAX_SCHID + 1) / sizeof(unsigned long)); } diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index e450db74a2..9cb739da1e 100644 --- a/target-s390x/cpu.h +++ b/target-s390x/cpu.h @@ -404,7 +404,7 @@ SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid, bool css_subch_visible(SubchDev *sch); void css_conditional_io_interrupt(SubchDev *sch); int css_do_stsch(SubchDev *sch, SCHIB *schib); -bool css_schid_final(uint8_t cssid, uint8_t ssid, uint16_t schid); +bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid); int css_do_msch(SubchDev *sch, SCHIB *schib); int css_do_xsch(SubchDev *sch); int css_do_csch(SubchDev *sch); diff --git a/target-s390x/ioinst.c b/target-s390x/ioinst.c index e3531f365e..28c508d541 100644 --- a/target-s390x/ioinst.c +++ b/target-s390x/ioinst.c @@ -316,7 +316,7 @@ int ioinst_handle_stsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) cc = 3; } } else { - if (css_schid_final(cssid, ssid, schid)) { + if (css_schid_final(m, cssid, ssid, schid)) { cc = 3; /* No more subchannels in this css/ss */ } else { /* Store an empty schib. */ |