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
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22f8a8b31c
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8
hw/ppc.c
8
hw/ppc.c
@ -103,6 +103,7 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level)
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case PPC6xx_INPUT_CKSTP_IN:
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/* Level sensitive - active low */
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/* XXX: TODO: relay the signal to CKSTP_OUT pin */
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/* XXX: Note that the only way to restart the CPU is to reset it */
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if (level) {
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#if defined(PPC_DEBUG_IRQ)
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if (loglevel & CPU_LOG_INT) {
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@ -110,13 +111,6 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level)
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}
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#endif
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env->halted = 1;
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} else {
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#if defined(PPC_DEBUG_IRQ)
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if (loglevel & CPU_LOG_INT) {
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fprintf(logfile, "%s: restart the CPU\n", __func__);
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}
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#endif
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env->halted = 0;
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}
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break;
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case PPC6xx_INPUT_HRESET:
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@ -2156,10 +2156,18 @@ static always_inline void powerpc_excp (CPUState *env,
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goto store_next;
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case POWERPC_EXCP_MCHECK: /* Machine check exception */
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if (msr_me == 0) {
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/* Machine check exception is not enabled */
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/* XXX: we may just stop the processor here, to allow debugging */
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excp = POWERPC_EXCP_RESET;
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goto excp_reset;
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/* Machine check exception is not enabled.
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* Enter checkstop state.
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*/
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if (loglevel != 0) {
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fprintf(logfile, "Machine check while not allowed. "
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"Entering checkstop state\n");
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} else {
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fprintf(stderr, "Machine check while not allowed. "
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"Entering checkstop state\n");
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}
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env->halted = 1;
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env->interrupt_request |= CPU_INTERRUPT_EXITTB;
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}
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msr_ri = 0;
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msr_me = 0;
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@ -2413,7 +2421,6 @@ static always_inline void powerpc_excp (CPUState *env,
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#if defined(TARGET_PPC64H)
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msr_hv = 1;
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#endif
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excp_reset:
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goto store_next;
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#if defined(TARGET_PPC64)
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case POWERPC_EXCP_DSEG: /* Data segment exception */
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