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halt state support for ppc 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1657 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-11-23 22:05:28 +00:00
parent f24e5695e5
commit e80e1cc4b1
4 changed files with 21 additions and 1 deletions
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10
cpu-exec.c
View File

@ -262,6 +262,16 @@ int cpu_exec(CPUState *env1)
return EXCP_HALTED;
}
}
#elif defined(TARGET_PPC)
if (env1->msr[MSR_POW]) {
if (env1->msr[MSR_EE] &&
(env1->interrupt_request &
(CPU_INTERRUPT_HARD | CPU_INTERRUPT_TIMER))) {
env1->msr[MSR_POW] = 0;
} else {
return EXCP_HALTED;
}
}
#endif
cpu_single_env = env1;

4
monitor.c
View File

@ -255,6 +255,10 @@ static void do_info_cpus(void)
term_printf(" pc=0x" TARGET_FMT_lx, env->eip + env->segs[R_CS].base);
if (env->hflags & HF_HALTED_MASK)
term_printf(" (halted)");
#elif defined(TARGET_PPC)
term_printf(" nip=0x" TARGET_FMT_lx, env->nip);
if (msr_pow)
term_printf(" (halted)");
#endif
term_printf("\n");
}

5
target-ppc/helper.c
View File

@ -846,6 +846,11 @@ void do_store_msr (CPUPPCState *env, target_ulong value)
msr_ri = (value >> MSR_RI) & 1;
msr_le = (value >> MSR_LE) & 1;
do_compute_hflags(env);
if (msr_pow) {
/* power save: exit cpu loop */
env->exception_index = EXCP_HLT;
cpu_loop_exit();
}
}
float64 do_load_fpscr (CPUPPCState *env)

3
target-ppc/translate.c
View File

@ -2097,10 +2097,11 @@ GEN_HANDLER(mtmsr, 0x1F, 0x12, 0x04, 0x001FF801, PPC_MISC)
RET_PRIVREG(ctx);
return;
}
gen_op_update_nip((ctx)->nip);
gen_op_load_gpr_T0(rS(ctx->opcode));
gen_op_store_msr();
/* Must stop the translation as machine state (may have) changed */
RET_STOP(ctx);
RET_CHG_FLOW(ctx);
#endif
}