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halt state support for ppc
[qemu]
/
target-ppc
/
helper.c
diff --git
a/target-ppc/helper.c
b/target-ppc/helper.c
index
66c2604
..
ff1355c
100644
(file)
--- a/
target-ppc/helper.c
+++ b/
target-ppc/helper.c
@@
-806,7
+806,7
@@
void do_compute_hflags (CPUPPCState *env)
}
void do_store_msr (CPUPPCState *env, target_ulong value)
}
void do_store_msr (CPUPPCState *env, target_ulong value)
- {
+{
value &= env->msr_mask;
if (((value >> MSR_IR) & 1) != msr_ir ||
((value >> MSR_DR) & 1) != msr_dr) {
value &= env->msr_mask;
if (((value >> MSR_IR) & 1) != msr_ir ||
((value >> MSR_DR) & 1) != msr_dr) {
@@
-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);
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)
}
float64 do_load_fpscr (CPUPPCState *env)
@@
-1436,15
+1441,5
@@
void do_interrupt (CPUState *env)
/* Jump to handler */
env->nip = excp;
env->exception_index = EXCP_NONE;
/* Jump to handler */
env->nip = excp;
env->exception_index = EXCP_NONE;
-#if 0
- /* ensure that no TB jump will be modified as
- the program flow was changed */
-#ifdef __sparc__
- tmp_T0 = 0;
-#else
- T0 = 0;
-#endif
-#endif
- env->interrupt_request |= CPU_INTERRUPT_EXITTB;
}
#endif /* !CONFIG_USER_ONLY */
}
#endif /* !CONFIG_USER_ONLY */