diff options
Diffstat (limited to 'hw/ppc.c')
| -rw-r--r-- | hw/ppc.c | 313 |
1 files changed, 68 insertions, 245 deletions
@@ -31,6 +31,25 @@ //#define PPC_DEBUG_IRQ //#define PPC_DEBUG_TB +#ifdef PPC_DEBUG_IRQ +# define LOG_IRQ(...) do { \ + if (loglevel & CPU_LOG_INT) \ + fprintf(logfile, ## __VA_ARGS__); \ + } while (0) +#else +# define LOG_IRQ(...) do { } while (0) +#endif + + +#ifdef PPC_DEBUG_TB +# define LOG_TB(...) do { \ + if (loglevel) \ + fprintf(logfile, ## __VA_ARGS__); \ + } while (0) +#else +# define LOG_TB(...) do { } while (0) +#endif + static void cpu_ppc_tb_stop (CPUState *env); static void cpu_ppc_tb_start (CPUState *env); @@ -44,13 +63,9 @@ static void ppc_set_irq (CPUState *env, int n_IRQ, int level) if (env->pending_interrupts == 0) cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); } -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: %p n_IRQ %d level %d => pending %08" PRIx32 + LOG_IRQ("%s: %p n_IRQ %d level %d => pending %08" PRIx32 "req %08x\n", __func__, env, n_IRQ, level, env->pending_interrupts, env->interrupt_request); - } -#endif } /* PowerPC 6xx / 7xx internal IRQ controller */ @@ -59,24 +74,16 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level) CPUState *env = opaque; int cur_level; -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: env %p pin %d level %d\n", __func__, + LOG_IRQ("%s: env %p pin %d level %d\n", __func__, env, pin, level); - } -#endif cur_level = (env->irq_input_state >> pin) & 1; /* Don't generate spurious events */ if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) { switch (pin) { case PPC6xx_INPUT_TBEN: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: %s the time base\n", + LOG_IRQ("%s: %s the time base\n", __func__, level ? "start" : "stop"); - } -#endif if (level) { cpu_ppc_tb_start(env); } else { @@ -84,22 +91,14 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level) } case PPC6xx_INPUT_INT: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the external IRQ state to %d\n", + LOG_IRQ("%s: set the external IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_EXT, level); break; case PPC6xx_INPUT_SMI: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the SMI IRQ state to %d\n", + LOG_IRQ("%s: set the SMI IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_SMI, level); break; case PPC6xx_INPUT_MCP: @@ -108,12 +107,8 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level) * 603/604/740/750: check HID0[EMCP] */ if (cur_level == 1 && level == 0) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: raise machine check state\n", + LOG_IRQ("%s: raise machine check state\n", __func__); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_MCK, 1); } break; @@ -122,22 +117,14 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level) /* 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) { - fprintf(logfile, "%s: stop the CPU\n", __func__); - } -#endif + LOG_IRQ("%s: stop the CPU\n", __func__); env->halted = 1; } break; case PPC6xx_INPUT_HRESET: /* Level sensitive - active low */ if (level) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: reset the CPU\n", __func__); - } -#endif + LOG_IRQ("%s: reset the CPU\n", __func__); env->interrupt_request |= CPU_INTERRUPT_EXITTB; /* XXX: TOFIX */ #if 0 @@ -148,21 +135,13 @@ static void ppc6xx_set_irq (void *opaque, int pin, int level) } break; case PPC6xx_INPUT_SRESET: -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the RESET IRQ state to %d\n", + LOG_IRQ("%s: set the RESET IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_RESET, level); break; default: /* Unknown pin - do nothing */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: unknown IRQ pin %d\n", __func__, pin); - } -#endif + LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin); return; } if (level) @@ -185,34 +164,22 @@ static void ppc970_set_irq (void *opaque, int pin, int level) CPUState *env = opaque; int cur_level; -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: env %p pin %d level %d\n", __func__, + LOG_IRQ("%s: env %p pin %d level %d\n", __func__, env, pin, level); - } -#endif cur_level = (env->irq_input_state >> pin) & 1; /* Don't generate spurious events */ if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) { switch (pin) { case PPC970_INPUT_INT: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the external IRQ state to %d\n", + LOG_IRQ("%s: set the external IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_EXT, level); break; case PPC970_INPUT_THINT: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the SMI IRQ state to %d\n", __func__, + LOG_IRQ("%s: set the SMI IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_THERM, level); break; case PPC970_INPUT_MCP: @@ -221,12 +188,8 @@ static void ppc970_set_irq (void *opaque, int pin, int level) * 603/604/740/750: check HID0[EMCP] */ if (cur_level == 1 && level == 0) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: raise machine check state\n", + LOG_IRQ("%s: raise machine check state\n", __func__); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_MCK, 1); } break; @@ -234,18 +197,10 @@ static void ppc970_set_irq (void *opaque, int pin, int level) /* Level sensitive - active low */ /* XXX: TODO: relay the signal to CKSTP_OUT pin */ if (level) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: stop the CPU\n", __func__); - } -#endif + LOG_IRQ("%s: stop the CPU\n", __func__); env->halted = 1; } else { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: restart the CPU\n", __func__); - } -#endif + LOG_IRQ("%s: restart the CPU\n", __func__); env->halted = 0; } break; @@ -253,40 +208,24 @@ static void ppc970_set_irq (void *opaque, int pin, int level) /* Level sensitive - active low */ if (level) { #if 0 // XXX: TOFIX -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: reset the CPU\n", __func__); - } -#endif + LOG_IRQ("%s: reset the CPU\n", __func__); cpu_reset(env); #endif } break; case PPC970_INPUT_SRESET: -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the RESET IRQ state to %d\n", + LOG_IRQ("%s: set the RESET IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_RESET, level); break; case PPC970_INPUT_TBEN: -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the TBEN state to %d\n", __func__, + LOG_IRQ("%s: set the TBEN state to %d\n", __func__, level); - } -#endif /* XXX: TODO */ break; default: /* Unknown pin - do nothing */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: unknown IRQ pin %d\n", __func__, pin); - } -#endif + LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin); return; } if (level) @@ -309,103 +248,63 @@ static void ppc40x_set_irq (void *opaque, int pin, int level) CPUState *env = opaque; int cur_level; -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: env %p pin %d level %d\n", __func__, + LOG_IRQ("%s: env %p pin %d level %d\n", __func__, env, pin, level); - } -#endif cur_level = (env->irq_input_state >> pin) & 1; /* Don't generate spurious events */ if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) { switch (pin) { case PPC40x_INPUT_RESET_SYS: if (level) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: reset the PowerPC system\n", + LOG_IRQ("%s: reset the PowerPC system\n", __func__); - } -#endif ppc40x_system_reset(env); } break; case PPC40x_INPUT_RESET_CHIP: if (level) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: reset the PowerPC chip\n", __func__); - } -#endif + LOG_IRQ("%s: reset the PowerPC chip\n", __func__); ppc40x_chip_reset(env); } break; case PPC40x_INPUT_RESET_CORE: /* XXX: TODO: update DBSR[MRR] */ if (level) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: reset the PowerPC core\n", __func__); - } -#endif + LOG_IRQ("%s: reset the PowerPC core\n", __func__); ppc40x_core_reset(env); } break; case PPC40x_INPUT_CINT: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the critical IRQ state to %d\n", + LOG_IRQ("%s: set the critical IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_CEXT, level); break; case PPC40x_INPUT_INT: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the external IRQ state to %d\n", + LOG_IRQ("%s: set the external IRQ state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_EXT, level); break; case PPC40x_INPUT_HALT: /* Level sensitive - active low */ if (level) { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: stop the CPU\n", __func__); - } -#endif + LOG_IRQ("%s: stop the CPU\n", __func__); env->halted = 1; } else { -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: restart the CPU\n", __func__); - } -#endif + LOG_IRQ("%s: restart the CPU\n", __func__); env->halted = 0; } break; case PPC40x_INPUT_DEBUG: /* Level sensitive - active high */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: set the debug pin state to %d\n", + LOG_IRQ("%s: set the debug pin state to %d\n", __func__, level); - } -#endif ppc_set_irq(env, PPC_INTERRUPT_DEBUG, level); break; default: /* Unknown pin - do nothing */ -#if defined(PPC_DEBUG_IRQ) - if (loglevel & CPU_LOG_INT) { - fprintf(logfile, "%s: unknown IRQ pin %d\n", __func__, pin); - } -#endif + LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin); return; } if (level) @@ -453,11 +352,7 @@ uint32_t cpu_ppc_load_tbl (CPUState *env) uint64_t tb; tb = cpu_ppc_get_tb(tb_env, qemu_get_clock(vm_clock), tb_env->tb_offset); -#if defined(PPC_DEBUG_TB) - if (loglevel != 0) { - fprintf(logfile, "%s: tb %016" PRIx64 "\n", __func__, tb); - } -#endif + LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb); return tb & 0xFFFFFFFF; } @@ -468,11 +363,7 @@ static always_inline uint32_t _cpu_ppc_load_tbu (CPUState *env) uint64_t tb; tb = cpu_ppc_get_tb(tb_env, qemu_get_clock(vm_clock), tb_env->tb_offset); -#if defined(PPC_DEBUG_TB) - if (loglevel != 0) { - fprintf(logfile, "%s: tb %016" PRIx64 "\n", __func__, tb); - } -#endif + LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb); return tb >> 32; } @@ -487,12 +378,8 @@ static always_inline void cpu_ppc_store_tb (ppc_tb_t *tb_env, uint64_t vmclk, uint64_t value) { *tb_offsetp = value - muldiv64(vmclk, tb_env->tb_freq, ticks_per_sec); -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: tb %016" PRIx64 " offset %08" PRIx64 "\n", + LOG_TB("%s: tb %016" PRIx64 " offset %08" PRIx64 "\n", __func__, value, *tb_offsetp); - } -#endif } void cpu_ppc_store_tbl (CPUState *env, uint32_t value) @@ -528,11 +415,7 @@ uint32_t cpu_ppc_load_atbl (CPUState *env) uint64_t tb; tb = cpu_ppc_get_tb(tb_env, qemu_get_clock(vm_clock), tb_env->atb_offset); -#if defined(PPC_DEBUG_TB) - if (loglevel != 0) { - fprintf(logfile, "%s: tb %016" PRIx64 "\n", __func__, tb); - } -#endif + LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb); return tb & 0xFFFFFFFF; } @@ -543,11 +426,7 @@ uint32_t cpu_ppc_load_atbu (CPUState *env) uint64_t tb; tb = cpu_ppc_get_tb(tb_env, qemu_get_clock(vm_clock), tb_env->atb_offset); -#if defined(PPC_DEBUG_TB) - if (loglevel != 0) { - fprintf(logfile, "%s: tb %016" PRIx64 "\n", __func__, tb); - } -#endif + LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb); return tb >> 32; } @@ -629,11 +508,7 @@ static always_inline uint32_t _cpu_ppc_load_decr (CPUState *env, decr = muldiv64(diff, tb_env->decr_freq, ticks_per_sec); else decr = -muldiv64(-diff, tb_env->decr_freq, ticks_per_sec); -#if defined(PPC_DEBUG_TB) - if (loglevel != 0) { - fprintf(logfile, "%s: %08" PRIx32 "\n", __func__, decr); - } -#endif + LOG_TB("%s: %08" PRIx32 "\n", __func__, decr); return decr; } @@ -668,22 +543,14 @@ uint64_t cpu_ppc_load_purr (CPUState *env) static always_inline void cpu_ppc_decr_excp (CPUState *env) { /* Raise it */ -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "raise decrementer exception\n"); - } -#endif + LOG_TB("raise decrementer exception\n"); ppc_set_irq(env, PPC_INTERRUPT_DECR, 1); } static always_inline void cpu_ppc_hdecr_excp (CPUState *env) { /* Raise it */ -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "raise decrementer exception\n"); - } -#endif + LOG_TB("raise decrementer exception\n"); ppc_set_irq(env, PPC_INTERRUPT_HDECR, 1); } @@ -696,12 +563,8 @@ static void __cpu_ppc_store_decr (CPUState *env, uint64_t *nextp, ppc_tb_t *tb_env = env->tb_env; uint64_t now, next; -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: %08" PRIx32 " => %08" PRIx32 "\n", __func__, + LOG_TB("%s: %08" PRIx32 " => %08" PRIx32 "\n", __func__, decr, value); - } -#endif now = qemu_get_clock(vm_clock); next = now + muldiv64(value, ticks_per_sec, tb_env->decr_freq); if (is_excp) @@ -882,13 +745,9 @@ static void cpu_4xx_fit_cb (void *opaque) env->spr[SPR_40x_TSR] |= 1 << 26; if ((env->spr[SPR_40x_TCR] >> 23) & 0x1) ppc_set_irq(env, PPC_INTERRUPT_FIT, 1); -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: ir %d TCR " ADDRX " TSR " ADDRX "\n", __func__, + LOG_TB("%s: ir %d TCR " ADDRX " TSR " ADDRX "\n", __func__, (int)((env->spr[SPR_40x_TCR] >> 23) & 0x1), env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]); - } -#endif } /* Programmable interval timer */ @@ -902,19 +761,11 @@ static void start_stop_pit (CPUState *env, ppc_tb_t *tb_env, int is_excp) !((env->spr[SPR_40x_TCR] >> 26) & 0x1) || (is_excp && !((env->spr[SPR_40x_TCR] >> 22) & 0x1))) { /* Stop PIT */ -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: stop PIT\n", __func__); - } -#endif + LOG_TB("%s: stop PIT\n", __func__); qemu_del_timer(tb_env->decr_timer); } else { -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: start PIT %016" PRIx64 "\n", + LOG_TB("%s: start PIT %016" PRIx64 "\n", __func__, ppcemb_timer->pit_reload); - } -#endif now = qemu_get_clock(vm_clock); next = now + muldiv64(ppcemb_timer->pit_reload, ticks_per_sec, tb_env->decr_freq); @@ -940,16 +791,12 @@ static void cpu_4xx_pit_cb (void *opaque) if ((env->spr[SPR_40x_TCR] >> 26) & 0x1) ppc_set_irq(env, PPC_INTERRUPT_PIT, 1); start_stop_pit(env, tb_env, 1); -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: ar %d ir %d TCR " ADDRX " TSR " ADDRX " " + LOG_TB("%s: ar %d ir %d TCR " ADDRX " TSR " ADDRX " " "%016" PRIx64 "\n", __func__, (int)((env->spr[SPR_40x_TCR] >> 22) & 0x1), (int)((env->spr[SPR_40x_TCR] >> 26) & 0x1), env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR], ppcemb_timer->pit_reload); - } -#endif } /* Watchdog timer */ @@ -984,12 +831,8 @@ static void cpu_4xx_wdt_cb (void *opaque) next = now + muldiv64(next, ticks_per_sec, tb_env->decr_freq); if (next == now) next++; -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: TCR " ADDRX " TSR " ADDRX "\n", __func__, + LOG_TB("%s: TCR " ADDRX " TSR " ADDRX "\n", __func__, env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]); - } -#endif switch ((env->spr[SPR_40x_TSR] >> 30) & 0x3) { case 0x0: case 0x1: @@ -1031,11 +874,7 @@ void store_40x_pit (CPUState *env, target_ulong val) tb_env = env->tb_env; ppcemb_timer = tb_env->opaque; -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s val" ADDRX "\n", __func__, val); - } -#endif + LOG_TB("%s val" ADDRX "\n", __func__, val); ppcemb_timer->pit_reload = val; start_stop_pit(env, tb_env, 0); } @@ -1047,11 +886,7 @@ target_ulong load_40x_pit (CPUState *env) void store_booke_tsr (CPUState *env, target_ulong val) { -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: val " ADDRX "\n", __func__, val); - } -#endif + LOG_TB("%s: val " ADDRX "\n", __func__, val); env->spr[SPR_40x_TSR] &= ~(val & 0xFC000000); if (val & 0x80000000) ppc_set_irq(env, PPC_INTERRUPT_PIT, 0); @@ -1062,11 +897,7 @@ void store_booke_tcr (CPUState *env, target_ulong val) ppc_tb_t *tb_env; tb_env = env->tb_env; -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s: val " ADDRX "\n", __func__, val); - } -#endif + LOG_TB("%s: val " ADDRX "\n", __func__, val); env->spr[SPR_40x_TCR] = val & 0xFFC00000; start_stop_pit(env, tb_env, 1); cpu_4xx_wdt_cb(env); @@ -1077,12 +908,8 @@ static void ppc_emb_set_tb_clk (void *opaque, uint32_t freq) CPUState *env = opaque; ppc_tb_t *tb_env = env->tb_env; -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s set new frequency to %" PRIu32 "\n", __func__, + LOG_TB("%s set new frequency to %" PRIu32 "\n", __func__, freq); - } -#endif tb_env->tb_freq = freq; tb_env->decr_freq = freq; /* XXX: we should also update all timers */ @@ -1102,11 +929,7 @@ clk_setup_cb ppc_emb_timers_init (CPUState *env, uint32_t freq) tb_env->tb_freq = freq; tb_env->decr_freq = freq; tb_env->opaque = ppcemb_timer; -#ifdef PPC_DEBUG_TB - if (loglevel != 0) { - fprintf(logfile, "%s freq %" PRIu32 "\n", __func__, freq); - } -#endif + LOG_TB("%s freq %" PRIu32 "\n", __func__, freq); if (ppcemb_timer != NULL) { /* We use decr timer for PIT */ tb_env->decr_timer = qemu_new_timer(vm_clock, &cpu_4xx_pit_cb, env); |