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Do not allow PowerPC CPU restart after entering checkstop mode. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3388 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-10-14 08:48:23 +00:00
parent 22f8a8b31c
commit e63ecc6f68
2 changed files with 13 additions and 12 deletions
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8
hw/ppc.c
View File

@ -103,6 +103,7 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level)
case PPC6xx_INPUT_CKSTP_IN:
/* Level sensitive - active low */
/* XXX: TODO: relay the signal to CKSTP_OUT pin */
/* XXX: Note that the only way to restart the CPU is to reset it */
if (level) {
#if defined(PPC_DEBUG_IRQ)
if (loglevel & CPU_LOG_INT) {
@ -110,13 +111,6 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level)
}
#endif
env->halted = 1;
} else {
#if defined(PPC_DEBUG_IRQ)
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "%s: restart the CPU\n", __func__);
}
#endif
env->halted = 0;
}
break;
case PPC6xx_INPUT_HRESET:

17
target-ppc/helper.c
View File

@ -2156,10 +2156,18 @@ static always_inline void powerpc_excp (CPUState *env,
goto store_next;
case POWERPC_EXCP_MCHECK: /* Machine check exception */
if (msr_me == 0) {
/* Machine check exception is not enabled */
/* XXX: we may just stop the processor here, to allow debugging */
excp = POWERPC_EXCP_RESET;
goto excp_reset;
/* Machine check exception is not enabled.
* Enter checkstop state.
*/
if (loglevel != 0) {
fprintf(logfile, "Machine check while not allowed. "
"Entering checkstop state\n");
} else {
fprintf(stderr, "Machine check while not allowed. "
"Entering checkstop state\n");
}
env->halted = 1;
env->interrupt_request |= CPU_INTERRUPT_EXITTB;
}
msr_ri = 0;
msr_me = 0;
@ -2413,7 +2421,6 @@ static always_inline void powerpc_excp (CPUState *env,
#if defined(TARGET_PPC64H)
msr_hv = 1;
#endif
excp_reset:
goto store_next;
#if defined(TARGET_PPC64)
case POWERPC_EXCP_DSEG: /* Data segment exception */