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hscpufun.c
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hscpufun.c
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/* HSCPUFUN.C (c) Copyright Roger Bowler, 1999-2012 */
/* (c) Copyright Jan Jaeger, 1999-2012 */
/* (c) Copyright "Fish" (David B. Trout), 2002-2009 */
/* (c) Copyright TurboHercules, SAS 2010-2011 */
/* CPU functions */
/* */
/* Released under "The Q Public License Version 1" */
/* (http://www.hercules-390.org/herclic.html) as modifications to */
/* Hercules. */
#include "hstdinc.h"
#define _HSCPUFUN_C_
#define _HENGINE_DLL_
#include "hercules.h"
/* Issue generic Missing device number message */
static inline void missing_devnum()
{
WRMSG(HHC02201,"E");
}
/*-------------------------------------------------------------------*/
/* cpu command - define target cpu for panel display and commands */
/*-------------------------------------------------------------------*/
int cpu_cmd(int argc, char *argv[], char *cmdline)
{
BYTE c;
int rc = 0;
int cpu = -1;
int currcpu = sysblk.pcpu;
char cmd[32768];
memset(cmd,0,sizeof(cmd));
if (argc < 2)
{
WRMSG(HHC02202, "E", argv[0] );
return -1;
}
if (sscanf(argv[1], "%x%c", &cpu, &c) != 1
|| cpu < 0 || cpu >= sysblk.maxcpu)
{
WRMSG(HHC02205, "E", argv[1], ": target processor is invalid" );
return -1;
}
sysblk.dummyregs.cpuad = cpu;
sysblk.pcpu = cpu;
strlcpy(cmd,cmdline,sizeof(cmd));
if ( argc > 2 )
{
u_int i = 0;
u_int j = 0;
u_int n = (u_int)strlen(cmd);
/* Skip leading blanks, if any */
for ( ; i < n && cmd[i] == ' '; i++ );
/* Skip two words */
for ( ; j < 2; j++ )
{
for ( ; i < n && cmd[i] != ' '; i++ );
for ( ; i < n && cmd[i] == ' '; i++ );
}
/* Issue command to temporary target cpu */
if (i < n)
{
rc = HercCmdLine(cmd+i);
sysblk.pcpu = currcpu;
sysblk.dummyregs.cpuad = currcpu;
}
}
return rc;
}
/*-------------------------------------------------------------------*/
/* startall command - start all CPU's */
/*-------------------------------------------------------------------*/
int startall_cmd(int argc, char *argv[], char *cmdline)
{
int i;
int rc = 0;
CPU_BITMAP mask;
UNREFERENCED(cmdline);
if ( argc == 1 )
{
OBTAIN_INTLOCK(NULL);
mask = (~sysblk.started_mask) & sysblk.config_mask;
for (i = 0; mask; i++)
{
if (mask & 1)
{
REGS *regs = sysblk.regs[i];
regs->opinterv = 0;
regs->cpustate = CPUSTATE_STARTED;
signal_condition(®s->intcond);
}
mask >>= 1;
}
RELEASE_INTLOCK(NULL);
}
else
{
WRMSG( HHC02299, "E", argv[0] );
rc = -1;
}
return rc;
}
/*-------------------------------------------------------------------*/
/* stopall command - stop all CPU's */
/*-------------------------------------------------------------------*/
DLL_EXPORT int stopall_cmd(int argc, char *argv[], char *cmdline)
{
int i;
int rc = 0;
CPU_BITMAP mask;
UNREFERENCED(cmdline);
if ( argc == 1 )
{
OBTAIN_INTLOCK(NULL);
mask = sysblk.started_mask;
for (i = 0; mask; i++)
{
if (mask & 1)
{
REGS *regs = sysblk.regs[i];
regs->opinterv = 1;
regs->cpustate = CPUSTATE_STOPPING;
ON_IC_INTERRUPT(regs);
signal_condition(®s->intcond);
}
mask >>= 1;
}
RELEASE_INTLOCK(NULL);
}
else
{
WRMSG( HHC02299, "E", argv[0] );
rc = -1;
}
return rc;
}
#ifdef _FEATURE_CPU_RECONFIG
/*-------------------------------------------------------------------*/
/* cf command - configure/deconfigure a CPU */
/*-------------------------------------------------------------------*/
int cf_cmd(int argc, char *argv[], char *cmdline)
{
int on = -1;
UNREFERENCED(cmdline);
if (argc == 2)
{
if ( CMD(argv[1],on,2) )
on = 1;
else if ( CMD(argv[1],off,3) )
on = 0;
}
OBTAIN_INTLOCK(NULL);
if (IS_CPU_ONLINE(sysblk.pcpu))
{
if (on < 0)
WRMSG(HHC00819, "I", PTYPSTR(sysblk.pcpu), sysblk.pcpu );
else if (on == 0)
deconfigure_cpu(sysblk.pcpu);
}
else
{
if (on < 0)
WRMSG(HHC00820, "I", PTYPSTR(sysblk.pcpu), sysblk.pcpu );
else if (on > 0)
configure_cpu(sysblk.pcpu);
}
RELEASE_INTLOCK(NULL);
if (on >= 0)
{
cf_cmd (1, argv, argv[0]);
}
return 0;
}
/*-------------------------------------------------------------------*/
/* cfall command - configure/deconfigure all CPU's */
/*-------------------------------------------------------------------*/
int cfall_cmd(int argc, char *argv[], char *cmdline)
{
static char *qproc[] = { "qproc", NULL };
int rc = 0;
int on = -1;
UNREFERENCED(cmdline);
if (argc == 2)
{
if ( CMD(argv[1],on,2) )
on = 1;
else if ( CMD(argv[1],off,3) )
on = 0;
else
{
WRMSG( HHC17000, "E" );
rc = -1;
}
if ( rc == 0 )
{
rc = configure_numcpu(on ? sysblk.maxcpu : 0);
}
}
else if ( argc == 1 )
{
rc = qproc_cmd(1, qproc, *qproc);
}
else
{
WRMSG( HHC02299, "E", argv[0] );
rc = -1;
}
return rc;
}
#else
int cf_cmd(int argc, char *argv[], char *cmdline)
{
UNREFERENCED(argc);
UNREFERENCED(argv);
UNREFERENCED(cmdline);
WRMSG( HHC02310, "S", "cf", "FEATURE_CPU_RECONFIG" );
return -1;
}
int cfall_cmd(int argc, char *argv[], char *cmdline)
{
UNREFERENCED(argc);
UNREFERENCED(argv);
UNREFERENCED(cmdline);
WRMSG( HHC02310, "S", "cfall", "FEATURE_CPU_RECONFIG" );
return -1;
}
#endif /*_FEATURE_CPU_RECONFIG*/
/*-------------------------------------------------------------------*/
/* system reset/system reset clear function */
/*-------------------------------------------------------------------*/
static int reset_cmd(int ac,char *av[],char *cmdline,int clear)
{
int rc;
UNREFERENCED(ac);
UNREFERENCED(av);
UNREFERENCED(cmdline);
OBTAIN_INTLOCK(NULL);
/* CPU does not have to be stopped to issue reset */
/* SA22-7201-05: */
/* p. 12-5, System-Reset-Clear Key */
/* p. 12-5, System-Reset-Normal Key */
/* p. 4-36 -- 4-37, CPU Reset */
rc = system_reset (sysblk.pcpu, clear, sysblk.arch_mode);
RELEASE_INTLOCK(NULL);
return rc;
}
/*-------------------------------------------------------------------*/
/* system reset command */
/*-------------------------------------------------------------------*/
int sysreset_cmd(int ac,char *av[],char *cmdline)
{
int rc;
if (ac < 2)
rc = reset_cmd( ac, av, cmdline, 0 );
else if (ac == 2)
{
if (!strcasecmp( "clear", av[1] ))
{
rc = reset_cmd( ac, av, cmdline, 1 );
}
else if (!strcasecmp( "normal", av[1] ))
{
rc = reset_cmd( ac, av, cmdline, 0 );
}
else
{
// "Invalid argument %s%s"
WRMSG( HHC02205, "E", av[1], "" );
rc = -1;
}
}
else // (ac > 2)
{
// "Invalid argument %s%s"
WRMSG( HHC02205, "E", av[2], "" );
rc = -1;
}
if (rc >= 0)
WRMSG( HHC02311, "I", cmdline ); // "%s completed"
return rc;
}
/*-------------------------------------------------------------------*/
/* system reset clear command */
/*-------------------------------------------------------------------*/
int sysclear_cmd(int ac,char *av[],char *cmdline)
{
int rc;
if (ac > 1)
{
// "Invalid argument %s%s"
WRMSG( HHC02205, "E", av[1], "" );
rc = -1;
}
if ((rc = reset_cmd( ac, av, cmdline, 1 )) >= 0)
WRMSG( HHC02311, "I", av[0] ); // "%s completed"
return rc;
}
/*-------------------------------------------------------------------*/
/* ipl function */
/* Format:
* ipl xxxx | cccc [loadparm xxxxnnnn | parm xxxxxxx ] [clear]
*/
/*-------------------------------------------------------------------*/
int ipl_cmd2(int argc, char *argv[], char *cmdline, int clr_prm)
{
BYTE c; /* Character work area */
int rc; /* Return code */
int i;
int clear = clr_prm; /* Called with Clear option */
int j;
size_t maxb;
U16 lcss;
U16 devnum;
char *cdev, *clcss;
char save_loadparm[16];
int rest_loadparm = FALSE;
save_loadparm[0] = '\0';
UNREFERENCED( cmdline );
/* Primary CPU must be online */
if (!IS_CPU_ONLINE(sysblk.pcpu))
{
WRMSG(HHC00816, "E", PTYPSTR(sysblk.pcpu), sysblk.pcpu, "online");
return -1;
}
/* Check that target processor type allows IPL */
if (sysblk.ptyp[sysblk.pcpu] == SCCB_PTYP_ZAAP
|| sysblk.ptyp[sysblk.pcpu] == SCCB_PTYP_ZIIP)
{
WRMSG(HHC00818, "E", PTYPSTR(sysblk.pcpu), sysblk.pcpu);
return -1;
}
/* Check the parameters of the IPL command */
if (argc < 2)
{
missing_devnum();
return -1;
}
#define MAXPARMSTRING sizeof(sysblk.iplparmstring)
sysblk.haveiplparm=0;
maxb=0;
if ( argc > 2 )
{
if ( CMD( argv[2], clear, 2 ) )
{
clear = 1;
}
else if ( CMD( argv[2], loadparm, 4 ) )
{
strlcpy( save_loadparm, str_loadparm(), sizeof(save_loadparm) );
rest_loadparm = TRUE;
if ( argc == 4 )
set_loadparm(argv[3]);
}
else if ( CMD(argv[2], parm, 4) )
{
memset(sysblk.iplparmstring,0,MAXPARMSTRING);
sysblk.haveiplparm=1;
for ( i = 3; i < argc && maxb < MAXPARMSTRING; i++ )
{
if ( i !=3 )
{
sysblk.iplparmstring[maxb++]=0x40;
}
for ( j = 0; j < (int)strlen(argv[i]) && maxb < MAXPARMSTRING; j++ )
{
if ( islower(argv[i][j]) )
{
argv[i][j]=toupper(argv[i][j]);
}
sysblk.iplparmstring[maxb]=host_to_guest(argv[i][j]);
maxb++;
}
}
}
}
OBTAIN_INTLOCK(NULL);
/* The ipl device number might be in format lcss:devnum */
if ( (cdev = strchr(argv[1],':')) )
{
clcss = argv[1];
cdev++;
}
else
{
clcss = NULL;
cdev = argv[1];
}
/* If the ipl device is not a valid hex number we assume */
/* This is a load from the service processor */
if (sscanf(cdev, "%hx%c", &devnum, &c) != 1)
rc = load_hmc(argv[1], sysblk.pcpu, clear);
else
{
#if defined(_FEATURE_SCSI_IPL)
DEVBLK *dev;
#endif /*defined(_FEATURE_SCSI_IPL)*/
*--cdev = '\0';
if (clcss)
{
if (sscanf(clcss, "%hd%c", &lcss, &c) != 1)
{
WRMSG(HHC02205, "E", clcss, ": LCSS id is invalid" );
if ( rest_loadparm ) set_loadparm( save_loadparm );
return -1;
}
}
else
lcss = 0;
#if defined(_FEATURE_SCSI_IPL)
if((dev = find_device_by_devnum(lcss,devnum))
&& support_boot(dev) >= 0)
rc = load_boot(dev, sysblk.pcpu, clear, 0);
else
#endif /*defined(_FEATURE_SCSI_IPL)*/
rc = load_ipl (lcss, devnum, sysblk.pcpu, clear);
}
RELEASE_INTLOCK(NULL);
return rc;
}
/*-------------------------------------------------------------------*/
/* ipl command */
/*-------------------------------------------------------------------*/
int ipl_cmd(int argc, char *argv[], char *cmdline)
{
return ipl_cmd2(argc,argv,cmdline,0);
}
/*-------------------------------------------------------------------*/
/* ipl clear command */
/*-------------------------------------------------------------------*/
int iplc_cmd(int argc, char *argv[], char *cmdline)
{
return ipl_cmd2(argc,argv,cmdline,1);
}
/*-------------------------------------------------------------------*/
/* capping - limit MIPS rate */
/*-------------------------------------------------------------------*/
int capping_cmd(int argc, char *argv[], char *cmdline)
{
U32 cap;
BYTE c;
int rc = HNOERROR;
UNREFERENCED(cmdline);
/* Update capping value */
if ( argc == 2 )
{
if( CMD( argv[1], off, 3))
rc = configure_capping(0);
else
if (strlen(argv[1]) >= 1
&& sscanf(argv[1], "%u%c", &cap, &c) == 1)
{
rc = configure_capping(cap);
}
else
{
WRMSG( HHC01451, "E", argv[1], argv[0] );
rc = HERROR;
}
}
else
if ( argc > 2 )
{
WRMSG( HHC02299, "E", argv[0] );
rc = HERROR;
}
else
{
if ( sysblk.capvalue == 0 )
WRMSG( HHC00838, "I" );
else
WRMSG( HHC00832, "I", sysblk.capvalue );
}
return rc;
}
/*-------------------------------------------------------------------*/
/* restart command - generate restart interrupt */
/*-------------------------------------------------------------------*/
int restart_cmd(int argc, char *argv[], char *cmdline)
{
UNREFERENCED(argc);
UNREFERENCED(argv);
UNREFERENCED(cmdline);
/* Check that target processor type allows IPL */
if (sysblk.ptyp[sysblk.pcpu] == SCCB_PTYP_ZAAP
|| sysblk.ptyp[sysblk.pcpu] == SCCB_PTYP_ZIIP)
{
// "Processor %s%02X: not eligible for ipl nor restart"
WRMSG(HHC00818, "E", PTYPSTR(sysblk.pcpu), sysblk.pcpu);
return -1;
}
// "%s key pressed"
WRMSG(HHC02228, "I", "restart");
/* Obtain the interrupt lock */
OBTAIN_INTLOCK(NULL);
if (!IS_CPU_ONLINE(sysblk.pcpu))
{
RELEASE_INTLOCK(NULL);
// "Processor %s%02X: processor is not %s"
WRMSG(HHC00816, "W", PTYPSTR(sysblk.pcpu), sysblk.pcpu, "online");
return +1;
}
/* Indicate that a restart interrupt is pending */
ON_IC_RESTART(sysblk.regs[sysblk.pcpu]);
/* Ensure that a stopped CPU will recognize the restart */
if (sysblk.regs[sysblk.pcpu]->cpustate == CPUSTATE_STOPPED)
sysblk.regs[sysblk.pcpu]->cpustate = CPUSTATE_STOPPING;
sysblk.regs[sysblk.pcpu]->checkstop = 0;
/* Signal CPU that an interrupt is pending */
WAKEUP_CPU (sysblk.regs[sysblk.pcpu]);
/* Release the interrupt lock */
RELEASE_INTLOCK(NULL);
return 0;
}
/*-------------------------------------------------------------------*/
/* ext command - generate external interrupt */
/*-------------------------------------------------------------------*/
int ext_cmd(int argc, char *argv[], char *cmdline)
{
UNREFERENCED(cmdline);
UNREFERENCED(argc);
UNREFERENCED(argv);
OBTAIN_INTLOCK(NULL);
ON_IC_INTKEY;
// "%s key pressed"
WRMSG(HHC02228, "I", "interrupt");
/* Signal waiting CPUs that an interrupt is pending */
WAKEUP_CPUS_MASK (sysblk.waiting_mask);
RELEASE_INTLOCK(NULL);
return 0;
}
/*-------------------------------------------------------------------*/
/* timerint - display or set the timer interval */
/*-------------------------------------------------------------------*/
int timerint_cmd( int argc, char *argv[], char *cmdline )
{
int rc = 0;
UNREFERENCED( cmdline );
if (argc == 2) /* Define a new value? */
{
if (CMD( argv[1], default, 7 ) || CMD( argv[1], reset, 5 ))
{
sysblk.timerint = DEF_TOD_UPDATE_USECS;
if (MLVL( VERBOSE ))
{
// "%-14s set to %s"
WRMSG( HHC02204, "I", argv[0], argv[1] );
}
}
else
{
int timerint = 0; BYTE c;
if (1
&& sscanf( argv[1], "%d%c", &timerint, &c ) == 1
&& timerint >= MIN_TOD_UPDATE_USECS
&& timerint <= MAX_TOD_UPDATE_USECS
)
{
sysblk.timerint = timerint;
if (MLVL( VERBOSE ))
{
char buf[25];
MSGBUF( buf, "%d", sysblk.timerint );
// "%-14s set to %s"
WRMSG( HHC02204, "I", argv[0], buf );
}
}
else
{
// "Invalid argument '%s'%s"
WRMSG( HHC02205, "E", argv[1], ": must be 'default' or n where "
QSTR( MIN_TOD_UPDATE_USECS ) " <= n <= "
QSTR( MAX_TOD_UPDATE_USECS ) );
rc = -1;
}
}
}
else if (argc == 1)
{
/* Display the current value */
char buf[25];
MSGBUF( buf, "%d", sysblk.timerint );
// "%-14s: %s"
WRMSG( HHC02203, "I", argv[0], buf );
}
else
{
// "Invalid command usage. Type 'help %s' for assistance."
WRMSG( HHC02299, "E", argv[0] );
rc = -1;
}
return rc;
}
/* format_tod - generate displayable date from TOD value */
/* always uses epoch of 1900 */
char * format_tod(char *buf, U64 tod, int flagdate)
{
int leapyear, years, days, hours, minutes, seconds, microseconds;
if ( tod >= ETOD_YEAR )
{
tod -= ETOD_YEAR;
years = (tod / ETOD_4YEARS * 4) + 1;
tod %= ETOD_4YEARS;
if ( ( leapyear = tod / ETOD_YEAR ) == 4 )
{
tod %= ETOD_YEAR;
years--;
tod += ETOD_YEAR;
}
else
tod %= ETOD_YEAR;
years += leapyear;
}
else
years = 0;
days = tod / ETOD_DAY;
tod %= ETOD_DAY;
hours = tod / ETOD_HOUR;
tod %= ETOD_HOUR;
minutes = tod / ETOD_MIN;
tod %= ETOD_MIN;
seconds = tod / ETOD_SEC;
microseconds = (tod % ETOD_SEC) / ETOD_USEC;
if (flagdate)
{
years += 1900;
days += 1;
}
sprintf(buf,"%4d.%03d %02d:%02d:%02d.%06d",
years,days,hours,minutes,seconds,microseconds);
return buf;
}
/*-------------------------------------------------------------------*/
/* clocks command - display tod clkc and cpu timer */
/*-------------------------------------------------------------------*/
int clocks_cmd(int argc, char *argv[], char *cmdline)
{
REGS *regs;
char clock_buf[30];
ETOD tod_now;
ETOD hw_now;
S64 epoch_now;
U64 epoch_now_abs;
char epoch_sign;
U64 clkc_now;
S64 cpt_now;
#if defined(_FEATURE_SIE)
U64 vtod_now = 0;
S64 vepoch_now = 0;
U64 vepoch_now_abs = 0;
char vepoch_sign = ' ';
U64 vclkc_now = 0;
S64 vcpt_now = 0;
char sie_flag = 0;
#endif
U32 itimer = 0;
char itimer_formatted[32];
char arch370_flag = 0;
char buf[64];
int rc = 0;
UNREFERENCED(cmdline);
if ( argc == 1 ) for (;;)
{
obtain_lock(&sysblk.cpulock[sysblk.pcpu]);
if (!IS_CPU_ONLINE(sysblk.pcpu))
{
release_lock(&sysblk.cpulock[sysblk.pcpu]);
WRMSG(HHC00816, "W", PTYPSTR(sysblk.pcpu), sysblk.pcpu, "online");
break;
}
regs = sysblk.regs[sysblk.pcpu];
/* Get the clock values all at once for consistency and so we can
release the CPU lock more quickly. */
etod_clock(regs, &tod_now, ETOD_fast);
hw_now.high = hw_tod.high;
hw_now.low = hw_tod.low;
epoch_now = regs->tod_epoch;
clkc_now = regs->clkc;
cpt_now = CPU_TIMER(regs);
#if defined(_FEATURE_SIE)
if ( regs->sie_active )
{
vtod_now = TOD_CLOCK(regs->guestregs);
vepoch_now = regs->guestregs->tod_epoch;
vclkc_now = regs->guestregs->clkc;
vcpt_now = CPU_TIMER(regs->guestregs);
sie_flag = 1;
}
#endif
if (regs->arch_mode == ARCH_370)
{
itimer = INT_TIMER(regs);
/* The interval timer counts 76800 per second, or one every
13.0208 microseconds. */
MSGBUF(itimer_formatted,"%02u:%02u:%02u.%06u",
(itimer/(76800*60*60)),((itimer%(76800*60*60))/(76800*60)),
((itimer%(76800*60))/76800),((itimer%76800)*13));
arch370_flag = 1;
}
release_lock(&sysblk.cpulock[sysblk.pcpu]);
MSGBUF( buf, "tod = %16.16"PRIX64" %s",
ETOD2TOD(tod_now), format_tod(clock_buf,tod_now.high,TRUE) );
WRMSG(HHC02274, "I", buf);
MSGBUF( buf, "h/w = %16.16"PRIX64" %s",
ETOD2TOD(hw_now), format_tod(clock_buf,hw_now.high,TRUE) );
WRMSG(HHC02274, "I", buf);
if (epoch_now < 0)
{
epoch_now_abs = -(epoch_now);
epoch_sign = '-';
}
else
{
epoch_now_abs = epoch_now;
epoch_sign = ' ';
}
MSGBUF( buf, "off = %16.16"PRIX64" %c%s",
etod2tod(epoch_now), epoch_sign,
format_tod(clock_buf,epoch_now_abs,FALSE) );
WRMSG(HHC02274, "I", buf);
MSGBUF( buf, "ckc = %16.16"PRIX64" %s",
etod2tod(clkc_now), format_tod(clock_buf,clkc_now,TRUE) );
WRMSG(HHC02274, "I", buf);
if (regs->cpustate != CPUSTATE_STOPPED)
MSGBUF( buf, "cpt = %16.16"PRIX64, cpt_now );
else
MSGBUF( buf, "cpt = %16.16"PRIX64" not decrementing", cpt_now );
WRMSG(HHC02274, "I", buf);
#if defined(_FEATURE_SIE)
if (sie_flag)
{
MSGBUF( buf, "vtod = %16.16"PRIX64" %s",
etod2tod(vtod_now), format_tod(clock_buf,vtod_now,TRUE) );
WRMSG(HHC02274, "I", buf);
if (vepoch_now < 0)
{
vepoch_now_abs = -(vepoch_now);
vepoch_sign = '-';
}
else
{
vepoch_now_abs = vepoch_now;
vepoch_sign = ' ';
}
MSGBUF( buf, "voff = %16.16"PRIX64" %c%s",
etod2tod(vepoch_now), vepoch_sign,
format_tod(clock_buf,vepoch_now_abs,FALSE) );
WRMSG(HHC02274, "I", buf);
MSGBUF( buf, "vckc = %16.16"PRIX64" %s",
etod2tod(vclkc_now), format_tod(clock_buf,vclkc_now,TRUE) );
WRMSG(HHC02274, "I", buf);
MSGBUF( buf, "vcpt = %16.16"PRIX64, vcpt_now );
WRMSG(HHC02274, "I", buf);
}
#endif
if (arch370_flag)
{
MSGBUF( buf, "itm = %8.8"PRIX32" %s",
itimer, itimer_formatted );
WRMSG(HHC02274, "I", buf);
}
break;
}
else
{
WRMSG( HHC02299, "E", argv[0] );
rc = -1;
}
return rc;
}
/*-------------------------------------------------------------------*/
/* store command - store CPU status at absolute zero */
/*-------------------------------------------------------------------*/
int store_cmd(int argc, char *argv[], char *cmdline)
{
REGS *regs;
UNREFERENCED(cmdline);
UNREFERENCED(argc);
UNREFERENCED(argv);
obtain_lock(&sysblk.cpulock[sysblk.pcpu]);
if (!IS_CPU_ONLINE(sysblk.pcpu))
{
release_lock(&sysblk.cpulock[sysblk.pcpu]);
WRMSG(HHC00816, "W", PTYPSTR(sysblk.pcpu), sysblk.pcpu, "online");
return 0;
}
regs = sysblk.regs[sysblk.pcpu];
/* Command is valid only when CPU is stopped */
if (regs->cpustate != CPUSTATE_STOPPED)
{
WRMSG(HHC02224, "E");
return -1;
}
/* Store status in 512 byte block at absolute location 0 */
store_status (regs, 0);
#if defined(_FEATURE_HARDWARE_LOADER)
ARCH_DEP(sdias_store_status)(regs);
#endif /*defined(_FEATURE_HARDWARE_LOADER)*/
release_lock(&sysblk.cpulock[sysblk.pcpu]);
WRMSG(HHC00817, "I", PTYPSTR(regs->cpuad), regs->cpuad);
return 0;
}
/*-------------------------------------------------------------------*/
/* start command - start current CPU */
/*-------------------------------------------------------------------*/
int start_cmd_cpu(int argc, char *argv[], char *cmdline)
{
int rc = 0;
UNREFERENCED(argc);
UNREFERENCED(argv);
UNREFERENCED(cmdline);
OBTAIN_INTLOCK(NULL);
if (IS_CPU_ONLINE(sysblk.pcpu))
{
REGS *regs = sysblk.regs[sysblk.pcpu];
if ( regs->cpustate == CPUSTATE_STARTED )
{
WRMSG(HHC00816, "W", PTYPSTR(sysblk.pcpu), sysblk.pcpu, "stopped");
rc = 1;
}
else
{
regs->opinterv = 0;
regs->cpustate = CPUSTATE_STARTED;
regs->checkstop = 0;
WAKEUP_CPU(regs);
WRMSG( HHC00834, "I", PTYPSTR(sysblk.pcpu), sysblk.pcpu, "running state selected" );
}
}
else
{
WRMSG(HHC00816, "W", PTYPSTR(sysblk.pcpu), sysblk.pcpu, "online");
rc = 1;
}
RELEASE_INTLOCK(NULL);
return rc;
}
/*-------------------------------------------------------------------*/
/* stop command - stop current CPU */
/*-------------------------------------------------------------------*/
int stop_cmd_cpu(int argc, char *argv[], char *cmdline)
{
int rc = 0;
UNREFERENCED(argc);
UNREFERENCED(argv);
UNREFERENCED(cmdline);
OBTAIN_INTLOCK(NULL);
if (IS_CPU_ONLINE(sysblk.pcpu))
{