diff options
Diffstat (limited to 'target-ppc/translate.c')
| -rw-r--r-- | target-ppc/translate.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/target-ppc/translate.c b/target-ppc/translate.c index 2f1c59166e..92030b66a5 100644 --- a/target-ppc/translate.c +++ b/target-ppc/translate.c @@ -1471,7 +1471,7 @@ static void gen_or(DisasContext *ctx) } else if (unlikely(Rc(ctx->opcode) != 0)) { gen_set_Rc0(ctx, cpu_gpr[rs]); #if defined(TARGET_PPC64) - } else { + } else if (rs != 0) { /* 0 is nop */ int prio = 0; switch (rs) { @@ -1514,7 +1514,6 @@ static void gen_or(DisasContext *ctx) break; #endif default: - /* nop */ break; } if (prio) { @@ -1524,13 +1523,15 @@ static void gen_or(DisasContext *ctx) tcg_gen_ori_tl(t0, t0, ((uint64_t)prio) << 50); gen_store_spr(SPR_PPR, t0); tcg_temp_free(t0); - /* Pause us out of TCG otherwise spin loops with smt_low - * eat too much CPU and the kernel hangs - */ + } #if !defined(CONFIG_USER_ONLY) - gen_pause(ctx); + /* Pause out of TCG otherwise spin loops with smt_low eat too much + * CPU and the kernel hangs. This applies to all encodings other + * than no-op, e.g., miso(rs=26), yield(27), mdoio(29), mdoom(30), + * and all currently undefined. + */ + gen_pause(ctx); #endif - } #endif } } @@ -11407,6 +11408,13 @@ void ppc_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf, env->spr[SPR_SPRG4], env->spr[SPR_SPRG5], env->spr[SPR_SPRG6], env->spr[SPR_SPRG7]); +#if defined(TARGET_PPC64) + if (env->excp_model == POWERPC_EXCP_POWER7 || + env->excp_model == POWERPC_EXCP_POWER8) { + cpu_fprintf(f, "HSRR0 " TARGET_FMT_lx " HSRR1 " TARGET_FMT_lx "\n", + env->spr[SPR_HSRR0], env->spr[SPR_HSRR1]); + } +#endif if (env->excp_model == POWERPC_EXCP_BOOKE) { cpu_fprintf(f, "CSRR0 " TARGET_FMT_lx " CSRR1 " TARGET_FMT_lx " MCSRR0 " TARGET_FMT_lx " MCSRR1 " TARGET_FMT_lx "\n", |