void sigabend_handler (int signo) { REGS *regs = NULL; TID tid; int i; tid = thread_id(); if( signo == SIGUSR2 ) { DEVBLK *dev; if (0 || equal_threads( tid, sysblk.cnsltid ) || equal_threads( tid, sysblk.socktid ) #if defined(OPTION_SHARED_DEVICES) || equal_threads( tid, sysblk.shrdtid ) #endif // defined(OPTION_SHARED_DEVICES) || equal_threads( tid, sysblk.httptid ) ) return; for (dev = sysblk.firstdev; dev != NULL; dev = dev->nextdev) if (0 || equal_threads( dev->tid, tid ) #if defined(OPTION_SHARED_DEVICES) || equal_threads( dev->shrdtid, tid ) #endif // defined(OPTION_SHARED_DEVICES) ) break; if( dev == NULL) { if (!sysblk.shutdown) WRMSG(HHC00825, "E"); } else if(dev->ccwtrace) WRMSG(HHC00826, "E", SSID_TO_LCSS(dev->ssid), dev->devnum); return; } for (i = 0; i < sysblk.maxcpu; i++) { if ( equal_threads( sysblk.cputid[i], tid ) ) { regs = sysblk.regs[i]; break; } } if (regs == NULL) { signal(signo, SIG_DFL); raise(signo); return; } if(MACHMASK(®s->psw)) { #if defined(_FEATURE_SIE) WRMSG(HHC00822, "I", regs->sie_active ? "IE" : PTYPSTR(regs->cpuad), regs->sie_active ? regs->guestregs->cpuad : regs->cpuad, strsignal(signo) ); #else /*!defined(_FEATURE_SIE)*/ WRMSG(HHC00822, "I", PTYPSTR(regs->cpuad), regs->cpuad, strsignal(signo)); #endif /*!defined(_FEATURE_SIE)*/ display_inst( #if defined(_FEATURE_SIE) regs->sie_active ? regs->guestregs : #endif /*defined(_FEATURE_SIE)*/ regs, #if defined(_FEATURE_SIE) regs->sie_active ? regs->guestregs->ip : #endif /*defined(_FEATURE_SIE)*/ regs->ip); switch(regs->arch_mode) { #if defined(_370) case ARCH_370: s370_sync_mck_interrupt(regs); break; #endif #if defined(_390) case ARCH_390: s390_sync_mck_interrupt(regs); break; #endif #if defined(_900) case ARCH_900: z900_sync_mck_interrupt(regs); break; #endif } } else { #if defined(_FEATURE_SIE) WRMSG(HHC00823, "I", regs->sie_active ? "IE" : PTYPSTR(regs->cpuad), regs->sie_active ? regs->guestregs->cpuad : regs->cpuad, strsignal(signo)); #else /*!defined(_FEATURE_SIE)*/ WRMSG(HHC00823, "I", PTYPSTR(regs->cpuad), regs->cpuad, strsignal(signo)); #endif /*!defined(_FEATURE_SIE)*/ display_inst( #if defined(_FEATURE_SIE) regs->sie_active ? regs->guestregs : #endif /*defined(_FEATURE_SIE)*/ regs, #if defined(_FEATURE_SIE) regs->sie_active ? regs->guestregs->ip : #endif /*defined(_FEATURE_SIE)*/ regs->ip); regs->cpustate = CPUSTATE_STOPPING; regs->checkstop = 1; ON_IC_INTERRUPT(regs); /* Notify other CPU's by means of a malfuction alert if possible */ if (!try_obtain_lock(&sysblk.sigplock)) { if(!try_obtain_lock(&sysblk.intlock)) { for (i = 0; i < sysblk.maxcpu; i++) if (i != regs->cpuad && IS_CPU_ONLINE(i)) { ON_IC_MALFALT(sysblk.regs[i]); sysblk.regs[i]->malfcpu[regs->cpuad] = 1; } release_lock(&sysblk.intlock); } release_lock(&sysblk.sigplock); } } longjmp (regs->progjmp, SIE_INTERCEPT_MCK); }
/*-------------------------------------------------------------------*/ void ARCH_DEP(perform_external_interrupt) (REGS *regs) { PSA *psa; /* -> Prefixed storage area */ U16 cpuad; /* Originating CPU address */ #if defined(FEATURE_VM_BLOCKIO) #if defined(FEATURE_ESAME) RADR servpadr; /* Address of 64-bit block I/O interrupt */ #endif U16 servcode; /* Service Signal or Block I/O Interrupt code */ #endif /* defined(FEATURE_VM_BLOCKIO) */ /* External interrupt if console interrupt key was depressed */ if ( OPEN_IC_INTKEY(regs) && !SIE_MODE(regs) ) { WRMSG (HHC00840, "I"); /* Reset interrupt key pending */ OFF_IC_INTKEY; /* Generate interrupt key interrupt */ ARCH_DEP(external_interrupt) (EXT_INTERRUPT_KEY_INTERRUPT, regs); } /* External interrupt if malfunction alert is pending */ if (OPEN_IC_MALFALT(regs)) { /* Find first CPU which generated a malfunction alert */ for (cpuad = 0; regs->malfcpu[cpuad] == 0; cpuad++) { if (cpuad >= sysblk.maxcpu) { OFF_IC_MALFALT(regs); return; } } /* end for(cpuad) */ // /*debug*/ logmsg (_("External interrupt: Malfuction Alert from CPU %d\n"), // /*debug*/ cpuad); /* Reset the indicator for the CPU which was found */ regs->malfcpu[cpuad] = 0; /* Store originating CPU address at PSA+X'84' */ psa = (void*)(regs->mainstor + regs->PX); STORE_HW(psa->extcpad,cpuad); /* Reset emergency signal pending flag if there are no other CPUs which generated emergency signal */ OFF_IC_MALFALT(regs); while (++cpuad < sysblk.maxcpu) { if (regs->malfcpu[cpuad]) { ON_IC_MALFALT(regs); break; } } /* end while */ /* Generate emergency signal interrupt */ ARCH_DEP(external_interrupt) (EXT_MALFUNCTION_ALERT_INTERRUPT, regs); } /* External interrupt if emergency signal is pending */ if (OPEN_IC_EMERSIG(regs)) { /* Find first CPU which generated an emergency signal */ for (cpuad = 0; regs->emercpu[cpuad] == 0; cpuad++) { if (cpuad >= sysblk.maxcpu) { OFF_IC_EMERSIG(regs); return; } } /* end for(cpuad) */ // /*debug*/ logmsg (_("External interrupt: Emergency Signal from CPU %d\n"), // /*debug*/ cpuad); /* Reset the indicator for the CPU which was found */ regs->emercpu[cpuad] = 0; /* Store originating CPU address at PSA+X'84' */ psa = (void*)(regs->mainstor + regs->PX); STORE_HW(psa->extcpad,cpuad); /* Reset emergency signal pending flag if there are no other CPUs which generated emergency signal */ OFF_IC_EMERSIG(regs); while (++cpuad < sysblk.maxcpu) { if (regs->emercpu[cpuad]) { ON_IC_EMERSIG(regs); break; } } /* end while */ /* Generate emergency signal interrupt */ ARCH_DEP(external_interrupt) (EXT_EMERGENCY_SIGNAL_INTERRUPT, regs); } /* External interrupt if external call is pending */ if (OPEN_IC_EXTCALL(regs)) { // /*debug*/logmsg (_("External interrupt: External Call from CPU %d\n"), // /*debug*/ regs->extccpu); /* Reset external call pending */ OFF_IC_EXTCALL(regs); /* Store originating CPU address at PSA+X'84' */ psa = (void*)(regs->mainstor + regs->PX); STORE_HW(psa->extcpad,regs->extccpu); /* Generate external call interrupt */ ARCH_DEP(external_interrupt) (EXT_EXTERNAL_CALL_INTERRUPT, regs); } /* External interrupt if TOD clock exceeds clock comparator */ if ( tod_clock(regs) > regs->clkc && OPEN_IC_CLKC(regs) ) { if (CPU_STEPPING_OR_TRACING_ALL) { WRMSG (HHC00841, "I"); } ARCH_DEP(external_interrupt) (EXT_CLOCK_COMPARATOR_INTERRUPT, regs); } /* External interrupt if CPU timer is negative */ if ( CPU_TIMER(regs) < 0 && OPEN_IC_PTIMER(regs) ) { if (CPU_STEPPING_OR_TRACING_ALL) { WRMSG (HHC00842, "I", CPU_TIMER(regs) << 8); } ARCH_DEP(external_interrupt) (EXT_CPU_TIMER_INTERRUPT, regs); } /* External interrupt if interval timer interrupt is pending */ #if defined(FEATURE_INTERVAL_TIMER) if (OPEN_IC_ITIMER(regs) #if defined(_FEATURE_SIE) && !(SIE_STATB(regs, M, ITMOF)) #endif /*defined(_FEATURE_SIE)*/ ) { if (CPU_STEPPING_OR_TRACING_ALL) { WRMSG (HHC00843, "I"); } OFF_IC_ITIMER(regs); ARCH_DEP(external_interrupt) (EXT_INTERVAL_TIMER_INTERRUPT, regs); } #if defined(FEATURE_ECPSVM) if ( OPEN_IC_ECPSVTIMER(regs) ) { OFF_IC_ECPSVTIMER(regs); ARCH_DEP(external_interrupt) (EXT_VINTERVAL_TIMER_INTERRUPT,regs); } #endif /*FEATURE_ECPSVM*/ #endif /*FEATURE_INTERVAL_TIMER*/ /* External interrupt if service signal is pending */ if ( OPEN_IC_SERVSIG(regs) && !SIE_MODE(regs) ) { #if defined(FEATURE_VM_BLOCKIO) /* Note: Both Block I/O and Service Signal are enabled by the */ /* the same CR0 bit. Hence they are handled in the same code */ switch(sysblk.servcode) { case EXT_BLOCKIO_INTERRUPT: /* VM Block I/O Interrupt */ if (sysblk.biodev->ccwtrace) { WRMSG (HHC00844, "I", SSID_TO_LCSS(sysblk.biodev->ssid), sysblk.biodev->devnum, sysblk.servcode, sysblk.bioparm, sysblk.biostat, sysblk.biosubcd ); } servcode = EXT_BLOCKIO_INTERRUPT; #if defined(FEATURE_ESAME) /* Real address used to store the 64-bit interrupt parameter */ #define VM_BLOCKIO_INT_PARM 0x11B8 if (sysblk.biosubcd == 0x07) { /* 8-byte interrupt parm */ if (CPU_STEPPING_OR_TRACING_ALL) { char buf[40]; MSGBUF(buf, "%16.16X", (unsigned) sysblk.bioparm); WRMSG (HHC00845,"I", buf); } /* Set the main storage reference and change bits */ /* for 64-bit interruption parameter. */ /* Note: This is handled for the first 4K page in */ /* ARCH_DEP(external_interrupt), but not for the */ /* the second 4K page used for the 64-bit interrupt */ /* parameter. */ /* Point to 2nd page of PSA in main storage */ servpadr=APPLY_PREFIXING(VM_BLOCKIO_INT_PARM,regs->PX); STORAGE_KEY(servpadr, regs) |= (STORKEY_REF | STORKEY_CHANGE); #if 0 /* Store the 64-bit interrupt parameter */ logmsg (_("Saving 64-bit Block I/O interrupt parm at " "%16.16X: %16.16X\n"), servpadr, sysblk.bioparm ); #endif STORE_DW(regs->mainstor + servpadr,sysblk.bioparm); psa = (void*)(regs->mainstor + regs->PX); } else { #endif /* defined(FEATURE_ESAME) */ /* 4-byte interrupt parm */ if (CPU_STEPPING_OR_TRACING_ALL) { char buf[40]; MSGBUF(buf, "%8.8X", (U32) sysblk.bioparm); WRMSG (HHC00845,"I", buf); } /* Store Block I/O parameter at PSA+X'80' */ psa = (void*)(regs->mainstor + regs->PX); STORE_FW(psa->extparm,(U32)sysblk.bioparm); #if defined(FEATURE_ESAME) } #endif /* Store sub-interruption code and status at PSA+X'84' */ STORE_HW(psa->extcpad,(sysblk.biosubcd<<8)|sysblk.biostat); /* Reset interruption data */ sysblk.bioparm = 0; sysblk.biosubcd = 0; sysblk.biostat = 0; break; case EXT_SERVICE_SIGNAL_INTERRUPT: /* Service Signal */ default: servcode = EXT_SERVICE_SIGNAL_INTERRUPT; /* Apply prefixing if the parameter is a storage address */ if ( (sysblk.servparm & SERVSIG_ADDR) ) sysblk.servparm = APPLY_PREFIXING (sysblk.servparm, regs->PX); if (CPU_STEPPING_OR_TRACING_ALL) { WRMSG (HHC00846,"I", sysblk.servparm); } /* Store service signal parameter at PSA+X'80' */ psa = (void*)(regs->mainstor + regs->PX); STORE_FW(psa->extparm,sysblk.servparm); } /* end switch(sysblk.servcode) */ /* Reset service parameter */ sysblk.servparm = 0; /* Reset service code */ sysblk.servcode = 0; /* Reset service signal pending */ OFF_IC_SERVSIG; /* Generate service signal interrupt */ ARCH_DEP(external_interrupt) (servcode, regs); #else /* defined(FEATURE_VM_BLOCKIO) */ /* Apply prefixing if the parameter is a storage address */ if ( (sysblk.servparm & SERVSIG_ADDR) ) sysblk.servparm = APPLY_PREFIXING (sysblk.servparm, regs->PX); if (CPU_STEPPING_OR_TRACING_ALL) { WRMSG (HHC00846,"I", sysblk.servparm); } /* Store service signal parameter at PSA+X'80' */ psa = (void*)(regs->mainstor + regs->PX); STORE_FW(psa->extparm,sysblk.servparm); /* Reset service parameter */ sysblk.servparm = 0; /* Reset service signal pending */ OFF_IC_SERVSIG; /* Generate service signal interrupt */ ARCH_DEP(external_interrupt) (EXT_SERVICE_SIGNAL_INTERRUPT, regs); #endif /* defined(FEATURE_VM_BLOCKIO) */ } /* end OPEN_IC_SERVSIG(regs) */ } /* end function perform_external_interrupt */