2 * QEMU generic PowerPC hardware System Emulator
4 * Copyright (c) 2003-2007 Jocelyn Mayer
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
28 #include "hw/ppc/ppc.h"
29 #include "hw/ppc/ppc_e500.h"
30 #include "qemu/timer.h"
31 #include "sysemu/cpus.h"
33 #include "qemu/main-loop.h"
34 #include "qemu/error-report.h"
35 #include "sysemu/kvm.h"
36 #include "sysemu/runstate.h"
38 #include "migration/vmstate.h"
41 //#define PPC_DEBUG_IRQ
42 //#define PPC_DEBUG_TB
45 # define LOG_IRQ(...) qemu_log_mask(CPU_LOG_INT, ## __VA_ARGS__)
47 # define LOG_IRQ(...) do { } while (0)
52 # define LOG_TB(...) qemu_log(__VA_ARGS__)
54 # define LOG_TB(...) do { } while (0)
57 static void cpu_ppc_tb_stop (CPUPPCState *env);
58 static void cpu_ppc_tb_start (CPUPPCState *env);
60 void ppc_set_irq(PowerPCCPU *cpu, int n_IRQ, int level)
62 CPUState *cs = CPU(cpu);
63 CPUPPCState *env = &cpu->env;
64 unsigned int old_pending;
67 /* We may already have the BQL if coming from the reset path */
68 if (!qemu_mutex_iothread_locked()) {
70 qemu_mutex_lock_iothread();
73 old_pending = env->pending_interrupts;
76 env->pending_interrupts |= 1 << n_IRQ;
77 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
79 env->pending_interrupts &= ~(1 << n_IRQ);
80 if (env->pending_interrupts == 0) {
81 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
85 if (old_pending != env->pending_interrupts) {
86 kvmppc_set_interrupt(cpu, n_IRQ, level);
90 LOG_IRQ("%s: %p n_IRQ %d level %d => pending %08" PRIx32
91 "req %08x\n", __func__, env, n_IRQ, level,
92 env->pending_interrupts, CPU(cpu)->interrupt_request);
95 qemu_mutex_unlock_iothread();
99 /* PowerPC 6xx / 7xx internal IRQ controller */
100 static void ppc6xx_set_irq(void *opaque, int pin, int level)
102 PowerPCCPU *cpu = opaque;
103 CPUPPCState *env = &cpu->env;
106 LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
108 cur_level = (env->irq_input_state >> pin) & 1;
109 /* Don't generate spurious events */
110 if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
111 CPUState *cs = CPU(cpu);
114 case PPC6xx_INPUT_TBEN:
115 /* Level sensitive - active high */
116 LOG_IRQ("%s: %s the time base\n",
117 __func__, level ? "start" : "stop");
119 cpu_ppc_tb_start(env);
121 cpu_ppc_tb_stop(env);
123 case PPC6xx_INPUT_INT:
124 /* Level sensitive - active high */
125 LOG_IRQ("%s: set the external IRQ state to %d\n",
127 ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
129 case PPC6xx_INPUT_SMI:
130 /* Level sensitive - active high */
131 LOG_IRQ("%s: set the SMI IRQ state to %d\n",
133 ppc_set_irq(cpu, PPC_INTERRUPT_SMI, level);
135 case PPC6xx_INPUT_MCP:
136 /* Negative edge sensitive */
137 /* XXX: TODO: actual reaction may depends on HID0 status
138 * 603/604/740/750: check HID0[EMCP]
140 if (cur_level == 1 && level == 0) {
141 LOG_IRQ("%s: raise machine check state\n",
143 ppc_set_irq(cpu, PPC_INTERRUPT_MCK, 1);
146 case PPC6xx_INPUT_CKSTP_IN:
147 /* Level sensitive - active low */
148 /* XXX: TODO: relay the signal to CKSTP_OUT pin */
149 /* XXX: Note that the only way to restart the CPU is to reset it */
151 LOG_IRQ("%s: stop the CPU\n", __func__);
155 case PPC6xx_INPUT_HRESET:
156 /* Level sensitive - active low */
158 LOG_IRQ("%s: reset the CPU\n", __func__);
159 cpu_interrupt(cs, CPU_INTERRUPT_RESET);
162 case PPC6xx_INPUT_SRESET:
163 LOG_IRQ("%s: set the RESET IRQ state to %d\n",
165 ppc_set_irq(cpu, PPC_INTERRUPT_RESET, level);
168 /* Unknown pin - do nothing */
169 LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
173 env->irq_input_state |= 1 << pin;
175 env->irq_input_state &= ~(1 << pin);
179 void ppc6xx_irq_init(PowerPCCPU *cpu)
181 CPUPPCState *env = &cpu->env;
183 env->irq_inputs = (void **)qemu_allocate_irqs(&ppc6xx_set_irq, cpu,
187 #if defined(TARGET_PPC64)
188 /* PowerPC 970 internal IRQ controller */
189 static void ppc970_set_irq(void *opaque, int pin, int level)
191 PowerPCCPU *cpu = opaque;
192 CPUPPCState *env = &cpu->env;
195 LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
197 cur_level = (env->irq_input_state >> pin) & 1;
198 /* Don't generate spurious events */
199 if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
200 CPUState *cs = CPU(cpu);
203 case PPC970_INPUT_INT:
204 /* Level sensitive - active high */
205 LOG_IRQ("%s: set the external IRQ state to %d\n",
207 ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
209 case PPC970_INPUT_THINT:
210 /* Level sensitive - active high */
211 LOG_IRQ("%s: set the SMI IRQ state to %d\n", __func__,
213 ppc_set_irq(cpu, PPC_INTERRUPT_THERM, level);
215 case PPC970_INPUT_MCP:
216 /* Negative edge sensitive */
217 /* XXX: TODO: actual reaction may depends on HID0 status
218 * 603/604/740/750: check HID0[EMCP]
220 if (cur_level == 1 && level == 0) {
221 LOG_IRQ("%s: raise machine check state\n",
223 ppc_set_irq(cpu, PPC_INTERRUPT_MCK, 1);
226 case PPC970_INPUT_CKSTP:
227 /* Level sensitive - active low */
228 /* XXX: TODO: relay the signal to CKSTP_OUT pin */
230 LOG_IRQ("%s: stop the CPU\n", __func__);
233 LOG_IRQ("%s: restart the CPU\n", __func__);
238 case PPC970_INPUT_HRESET:
239 /* Level sensitive - active low */
241 cpu_interrupt(cs, CPU_INTERRUPT_RESET);
244 case PPC970_INPUT_SRESET:
245 LOG_IRQ("%s: set the RESET IRQ state to %d\n",
247 ppc_set_irq(cpu, PPC_INTERRUPT_RESET, level);
249 case PPC970_INPUT_TBEN:
250 LOG_IRQ("%s: set the TBEN state to %d\n", __func__,
255 /* Unknown pin - do nothing */
256 LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
260 env->irq_input_state |= 1 << pin;
262 env->irq_input_state &= ~(1 << pin);
266 void ppc970_irq_init(PowerPCCPU *cpu)
268 CPUPPCState *env = &cpu->env;
270 env->irq_inputs = (void **)qemu_allocate_irqs(&ppc970_set_irq, cpu,
274 /* POWER7 internal IRQ controller */
275 static void power7_set_irq(void *opaque, int pin, int level)
277 PowerPCCPU *cpu = opaque;
279 LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
280 &cpu->env, pin, level);
283 case POWER7_INPUT_INT:
284 /* Level sensitive - active high */
285 LOG_IRQ("%s: set the external IRQ state to %d\n",
287 ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
290 /* Unknown pin - do nothing */
291 LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
296 void ppcPOWER7_irq_init(PowerPCCPU *cpu)
298 CPUPPCState *env = &cpu->env;
300 env->irq_inputs = (void **)qemu_allocate_irqs(&power7_set_irq, cpu,
304 /* POWER9 internal IRQ controller */
305 static void power9_set_irq(void *opaque, int pin, int level)
307 PowerPCCPU *cpu = opaque;
309 LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
310 &cpu->env, pin, level);
313 case POWER9_INPUT_INT:
314 /* Level sensitive - active high */
315 LOG_IRQ("%s: set the external IRQ state to %d\n",
317 ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
319 case POWER9_INPUT_HINT:
320 /* Level sensitive - active high */
321 LOG_IRQ("%s: set the external IRQ state to %d\n",
323 ppc_set_irq(cpu, PPC_INTERRUPT_HVIRT, level);
326 /* Unknown pin - do nothing */
327 LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
332 void ppcPOWER9_irq_init(PowerPCCPU *cpu)
334 CPUPPCState *env = &cpu->env;
336 env->irq_inputs = (void **)qemu_allocate_irqs(&power9_set_irq, cpu,
339 #endif /* defined(TARGET_PPC64) */
341 void ppc40x_core_reset(PowerPCCPU *cpu)
343 CPUPPCState *env = &cpu->env;
346 qemu_log_mask(CPU_LOG_RESET, "Reset PowerPC core\n");
347 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_RESET);
348 dbsr = env->spr[SPR_40x_DBSR];
351 env->spr[SPR_40x_DBSR] = dbsr;
354 void ppc40x_chip_reset(PowerPCCPU *cpu)
356 CPUPPCState *env = &cpu->env;
359 qemu_log_mask(CPU_LOG_RESET, "Reset PowerPC chip\n");
360 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_RESET);
361 /* XXX: TODO reset all internal peripherals */
362 dbsr = env->spr[SPR_40x_DBSR];
365 env->spr[SPR_40x_DBSR] = dbsr;
368 void ppc40x_system_reset(PowerPCCPU *cpu)
370 qemu_log_mask(CPU_LOG_RESET, "Reset PowerPC system\n");
371 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
374 void store_40x_dbcr0(CPUPPCState *env, uint32_t val)
376 PowerPCCPU *cpu = env_archcpu(env);
378 switch ((val >> 28) & 0x3) {
384 ppc40x_core_reset(cpu);
388 ppc40x_chip_reset(cpu);
392 ppc40x_system_reset(cpu);
397 /* PowerPC 40x internal IRQ controller */
398 static void ppc40x_set_irq(void *opaque, int pin, int level)
400 PowerPCCPU *cpu = opaque;
401 CPUPPCState *env = &cpu->env;
404 LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
406 cur_level = (env->irq_input_state >> pin) & 1;
407 /* Don't generate spurious events */
408 if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
409 CPUState *cs = CPU(cpu);
412 case PPC40x_INPUT_RESET_SYS:
414 LOG_IRQ("%s: reset the PowerPC system\n",
416 ppc40x_system_reset(cpu);
419 case PPC40x_INPUT_RESET_CHIP:
421 LOG_IRQ("%s: reset the PowerPC chip\n", __func__);
422 ppc40x_chip_reset(cpu);
425 case PPC40x_INPUT_RESET_CORE:
426 /* XXX: TODO: update DBSR[MRR] */
428 LOG_IRQ("%s: reset the PowerPC core\n", __func__);
429 ppc40x_core_reset(cpu);
432 case PPC40x_INPUT_CINT:
433 /* Level sensitive - active high */
434 LOG_IRQ("%s: set the critical IRQ state to %d\n",
436 ppc_set_irq(cpu, PPC_INTERRUPT_CEXT, level);
438 case PPC40x_INPUT_INT:
439 /* Level sensitive - active high */
440 LOG_IRQ("%s: set the external IRQ state to %d\n",
442 ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
444 case PPC40x_INPUT_HALT:
445 /* Level sensitive - active low */
447 LOG_IRQ("%s: stop the CPU\n", __func__);
450 LOG_IRQ("%s: restart the CPU\n", __func__);
455 case PPC40x_INPUT_DEBUG:
456 /* Level sensitive - active high */
457 LOG_IRQ("%s: set the debug pin state to %d\n",
459 ppc_set_irq(cpu, PPC_INTERRUPT_DEBUG, level);
462 /* Unknown pin - do nothing */
463 LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
467 env->irq_input_state |= 1 << pin;
469 env->irq_input_state &= ~(1 << pin);
473 void ppc40x_irq_init(PowerPCCPU *cpu)
475 CPUPPCState *env = &cpu->env;
477 env->irq_inputs = (void **)qemu_allocate_irqs(&ppc40x_set_irq,
478 cpu, PPC40x_INPUT_NB);
481 /* PowerPC E500 internal IRQ controller */
482 static void ppce500_set_irq(void *opaque, int pin, int level)
484 PowerPCCPU *cpu = opaque;
485 CPUPPCState *env = &cpu->env;
488 LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
490 cur_level = (env->irq_input_state >> pin) & 1;
491 /* Don't generate spurious events */
492 if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
494 case PPCE500_INPUT_MCK:
496 LOG_IRQ("%s: reset the PowerPC system\n",
498 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
501 case PPCE500_INPUT_RESET_CORE:
503 LOG_IRQ("%s: reset the PowerPC core\n", __func__);
504 ppc_set_irq(cpu, PPC_INTERRUPT_MCK, level);
507 case PPCE500_INPUT_CINT:
508 /* Level sensitive - active high */
509 LOG_IRQ("%s: set the critical IRQ state to %d\n",
511 ppc_set_irq(cpu, PPC_INTERRUPT_CEXT, level);
513 case PPCE500_INPUT_INT:
514 /* Level sensitive - active high */
515 LOG_IRQ("%s: set the core IRQ state to %d\n",
517 ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
519 case PPCE500_INPUT_DEBUG:
520 /* Level sensitive - active high */
521 LOG_IRQ("%s: set the debug pin state to %d\n",
523 ppc_set_irq(cpu, PPC_INTERRUPT_DEBUG, level);
526 /* Unknown pin - do nothing */
527 LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
531 env->irq_input_state |= 1 << pin;
533 env->irq_input_state &= ~(1 << pin);
537 void ppce500_irq_init(PowerPCCPU *cpu)
539 CPUPPCState *env = &cpu->env;
541 env->irq_inputs = (void **)qemu_allocate_irqs(&ppce500_set_irq,
542 cpu, PPCE500_INPUT_NB);
545 /* Enable or Disable the E500 EPR capability */
546 void ppce500_set_mpic_proxy(bool enabled)
551 PowerPCCPU *cpu = POWERPC_CPU(cs);
553 cpu->env.mpic_proxy = enabled;
555 kvmppc_set_mpic_proxy(cpu, enabled);
560 /*****************************************************************************/
561 /* PowerPC time base and decrementer emulation */
563 uint64_t cpu_ppc_get_tb(ppc_tb_t *tb_env, uint64_t vmclk, int64_t tb_offset)
565 /* TB time in tb periods */
566 return muldiv64(vmclk, tb_env->tb_freq, NANOSECONDS_PER_SECOND) + tb_offset;
569 uint64_t cpu_ppc_load_tbl (CPUPPCState *env)
571 ppc_tb_t *tb_env = env->tb_env;
575 return env->spr[SPR_TBL];
578 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->tb_offset);
579 LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
584 static inline uint32_t _cpu_ppc_load_tbu(CPUPPCState *env)
586 ppc_tb_t *tb_env = env->tb_env;
589 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->tb_offset);
590 LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
595 uint32_t cpu_ppc_load_tbu (CPUPPCState *env)
598 return env->spr[SPR_TBU];
601 return _cpu_ppc_load_tbu(env);
604 static inline void cpu_ppc_store_tb(ppc_tb_t *tb_env, uint64_t vmclk,
605 int64_t *tb_offsetp, uint64_t value)
607 *tb_offsetp = value -
608 muldiv64(vmclk, tb_env->tb_freq, NANOSECONDS_PER_SECOND);
610 LOG_TB("%s: tb %016" PRIx64 " offset %08" PRIx64 "\n",
611 __func__, value, *tb_offsetp);
614 void cpu_ppc_store_tbl (CPUPPCState *env, uint32_t value)
616 ppc_tb_t *tb_env = env->tb_env;
619 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->tb_offset);
620 tb &= 0xFFFFFFFF00000000ULL;
621 cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
622 &tb_env->tb_offset, tb | (uint64_t)value);
625 static inline void _cpu_ppc_store_tbu(CPUPPCState *env, uint32_t value)
627 ppc_tb_t *tb_env = env->tb_env;
630 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->tb_offset);
631 tb &= 0x00000000FFFFFFFFULL;
632 cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
633 &tb_env->tb_offset, ((uint64_t)value << 32) | tb);
636 void cpu_ppc_store_tbu (CPUPPCState *env, uint32_t value)
638 _cpu_ppc_store_tbu(env, value);
641 uint64_t cpu_ppc_load_atbl (CPUPPCState *env)
643 ppc_tb_t *tb_env = env->tb_env;
646 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->atb_offset);
647 LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
652 uint32_t cpu_ppc_load_atbu (CPUPPCState *env)
654 ppc_tb_t *tb_env = env->tb_env;
657 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->atb_offset);
658 LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
663 void cpu_ppc_store_atbl (CPUPPCState *env, uint32_t value)
665 ppc_tb_t *tb_env = env->tb_env;
668 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->atb_offset);
669 tb &= 0xFFFFFFFF00000000ULL;
670 cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
671 &tb_env->atb_offset, tb | (uint64_t)value);
674 void cpu_ppc_store_atbu (CPUPPCState *env, uint32_t value)
676 ppc_tb_t *tb_env = env->tb_env;
679 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), tb_env->atb_offset);
680 tb &= 0x00000000FFFFFFFFULL;
681 cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
682 &tb_env->atb_offset, ((uint64_t)value << 32) | tb);
685 uint64_t cpu_ppc_load_vtb(CPUPPCState *env)
687 ppc_tb_t *tb_env = env->tb_env;
689 return cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
693 void cpu_ppc_store_vtb(CPUPPCState *env, uint64_t value)
695 ppc_tb_t *tb_env = env->tb_env;
697 cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
698 &tb_env->vtb_offset, value);
701 void cpu_ppc_store_tbu40(CPUPPCState *env, uint64_t value)
703 ppc_tb_t *tb_env = env->tb_env;
706 tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
709 tb |= (value & ~0xFFFFFFUL);
710 cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
711 &tb_env->tb_offset, tb);
714 static void cpu_ppc_tb_stop (CPUPPCState *env)
716 ppc_tb_t *tb_env = env->tb_env;
717 uint64_t tb, atb, vmclk;
719 /* If the time base is already frozen, do nothing */
720 if (tb_env->tb_freq != 0) {
721 vmclk = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
722 /* Get the time base */
723 tb = cpu_ppc_get_tb(tb_env, vmclk, tb_env->tb_offset);
724 /* Get the alternate time base */
725 atb = cpu_ppc_get_tb(tb_env, vmclk, tb_env->atb_offset);
726 /* Store the time base value (ie compute the current offset) */
727 cpu_ppc_store_tb(tb_env, vmclk, &tb_env->tb_offset, tb);
728 /* Store the alternate time base value (compute the current offset) */
729 cpu_ppc_store_tb(tb_env, vmclk, &tb_env->atb_offset, atb);
730 /* Set the time base frequency to zero */
732 /* Now, the time bases are frozen to tb_offset / atb_offset value */
736 static void cpu_ppc_tb_start (CPUPPCState *env)
738 ppc_tb_t *tb_env = env->tb_env;
739 uint64_t tb, atb, vmclk;
741 /* If the time base is not frozen, do nothing */
742 if (tb_env->tb_freq == 0) {
743 vmclk = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
744 /* Get the time base from tb_offset */
745 tb = tb_env->tb_offset;
746 /* Get the alternate time base from atb_offset */
747 atb = tb_env->atb_offset;
748 /* Restore the tb frequency from the decrementer frequency */
749 tb_env->tb_freq = tb_env->decr_freq;
750 /* Store the time base value */
751 cpu_ppc_store_tb(tb_env, vmclk, &tb_env->tb_offset, tb);
752 /* Store the alternate time base value */
753 cpu_ppc_store_tb(tb_env, vmclk, &tb_env->atb_offset, atb);
757 bool ppc_decr_clear_on_delivery(CPUPPCState *env)
759 ppc_tb_t *tb_env = env->tb_env;
760 int flags = PPC_DECR_UNDERFLOW_TRIGGERED | PPC_DECR_UNDERFLOW_LEVEL;
761 return ((tb_env->flags & flags) == PPC_DECR_UNDERFLOW_TRIGGERED);
764 static inline int64_t _cpu_ppc_load_decr(CPUPPCState *env, uint64_t next)
766 ppc_tb_t *tb_env = env->tb_env;
769 diff = next - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
771 decr = muldiv64(diff, tb_env->decr_freq, NANOSECONDS_PER_SECOND);
772 } else if (tb_env->flags & PPC_TIMER_BOOKE) {
775 decr = -muldiv64(-diff, tb_env->decr_freq, NANOSECONDS_PER_SECOND);
777 LOG_TB("%s: %016" PRIx64 "\n", __func__, decr);
782 target_ulong cpu_ppc_load_decr(CPUPPCState *env)
784 ppc_tb_t *tb_env = env->tb_env;
788 return env->spr[SPR_DECR];
791 decr = _cpu_ppc_load_decr(env, tb_env->decr_next);
794 * If large decrementer is enabled then the decrementer is signed extened
795 * to 64 bits, otherwise it is a 32 bit value.
797 if (env->spr[SPR_LPCR] & LPCR_LD) {
800 return (uint32_t) decr;
803 target_ulong cpu_ppc_load_hdecr(CPUPPCState *env)
805 PowerPCCPU *cpu = env_archcpu(env);
806 PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
807 ppc_tb_t *tb_env = env->tb_env;
810 hdecr = _cpu_ppc_load_decr(env, tb_env->hdecr_next);
813 * If we have a large decrementer (POWER9 or later) then hdecr is sign
814 * extended to 64 bits, otherwise it is 32 bits.
816 if (pcc->lrg_decr_bits > 32) {
819 return (uint32_t) hdecr;
822 uint64_t cpu_ppc_load_purr (CPUPPCState *env)
824 ppc_tb_t *tb_env = env->tb_env;
826 return cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
827 tb_env->purr_offset);
830 /* When decrementer expires,
831 * all we need to do is generate or queue a CPU exception
833 static inline void cpu_ppc_decr_excp(PowerPCCPU *cpu)
836 LOG_TB("raise decrementer exception\n");
837 ppc_set_irq(cpu, PPC_INTERRUPT_DECR, 1);
840 static inline void cpu_ppc_decr_lower(PowerPCCPU *cpu)
842 ppc_set_irq(cpu, PPC_INTERRUPT_DECR, 0);
845 static inline void cpu_ppc_hdecr_excp(PowerPCCPU *cpu)
847 CPUPPCState *env = &cpu->env;
850 LOG_TB("raise hv decrementer exception\n");
852 /* The architecture specifies that we don't deliver HDEC
853 * interrupts in a PM state. Not only they don't cause a
854 * wakeup but they also get effectively discarded.
856 if (!env->resume_as_sreset) {
857 ppc_set_irq(cpu, PPC_INTERRUPT_HDECR, 1);
861 static inline void cpu_ppc_hdecr_lower(PowerPCCPU *cpu)
863 ppc_set_irq(cpu, PPC_INTERRUPT_HDECR, 0);
866 static void __cpu_ppc_store_decr(PowerPCCPU *cpu, uint64_t *nextp,
868 void (*raise_excp)(void *),
869 void (*lower_excp)(PowerPCCPU *),
870 target_ulong decr, target_ulong value,
873 CPUPPCState *env = &cpu->env;
874 ppc_tb_t *tb_env = env->tb_env;
878 /* Truncate value to decr_width and sign extend for simplicity */
879 value &= ((1ULL << nr_bits) - 1);
880 negative = !!(value & (1ULL << (nr_bits - 1)));
882 value |= (0xFFFFFFFFULL << nr_bits);
885 LOG_TB("%s: " TARGET_FMT_lx " => " TARGET_FMT_lx "\n", __func__,
889 /* KVM handles decrementer exceptions, we don't need our own timer */
894 * Going from 2 -> 1, 1 -> 0 or 0 -> -1 is the event to generate a DEC
897 * If we get a really small DEC value, we can assume that by the time we
898 * handled it we should inject an interrupt already.
900 * On MSB level based DEC implementations the MSB always means the interrupt
901 * is pending, so raise it on those.
903 * On MSB edge based DEC implementations the MSB going from 0 -> 1 triggers
904 * an edge interrupt, so raise it here too.
907 ((tb_env->flags & PPC_DECR_UNDERFLOW_LEVEL) && negative) ||
908 ((tb_env->flags & PPC_DECR_UNDERFLOW_TRIGGERED) && negative
909 && !(decr & (1ULL << (nr_bits - 1))))) {
914 /* On MSB level based systems a 0 for the MSB stops interrupt delivery */
915 if (!negative && (tb_env->flags & PPC_DECR_UNDERFLOW_LEVEL)) {
919 /* Calculate the next timer event */
920 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
921 next = now + muldiv64(value, NANOSECONDS_PER_SECOND, tb_env->decr_freq);
925 timer_mod(timer, next);
928 static inline void _cpu_ppc_store_decr(PowerPCCPU *cpu, target_ulong decr,
929 target_ulong value, int nr_bits)
931 ppc_tb_t *tb_env = cpu->env.tb_env;
933 __cpu_ppc_store_decr(cpu, &tb_env->decr_next, tb_env->decr_timer,
934 tb_env->decr_timer->cb, &cpu_ppc_decr_lower, decr,
938 void cpu_ppc_store_decr(CPUPPCState *env, target_ulong value)
940 PowerPCCPU *cpu = env_archcpu(env);
941 PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
944 if (env->spr[SPR_LPCR] & LPCR_LD) {
945 nr_bits = pcc->lrg_decr_bits;
948 _cpu_ppc_store_decr(cpu, cpu_ppc_load_decr(env), value, nr_bits);
951 static void cpu_ppc_decr_cb(void *opaque)
953 PowerPCCPU *cpu = opaque;
955 cpu_ppc_decr_excp(cpu);
958 static inline void _cpu_ppc_store_hdecr(PowerPCCPU *cpu, target_ulong hdecr,
959 target_ulong value, int nr_bits)
961 ppc_tb_t *tb_env = cpu->env.tb_env;
963 if (tb_env->hdecr_timer != NULL) {
964 __cpu_ppc_store_decr(cpu, &tb_env->hdecr_next, tb_env->hdecr_timer,
965 tb_env->hdecr_timer->cb, &cpu_ppc_hdecr_lower,
966 hdecr, value, nr_bits);
970 void cpu_ppc_store_hdecr(CPUPPCState *env, target_ulong value)
972 PowerPCCPU *cpu = env_archcpu(env);
973 PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
975 _cpu_ppc_store_hdecr(cpu, cpu_ppc_load_hdecr(env), value,
979 static void cpu_ppc_hdecr_cb(void *opaque)
981 PowerPCCPU *cpu = opaque;
983 cpu_ppc_hdecr_excp(cpu);
986 void cpu_ppc_store_purr(CPUPPCState *env, uint64_t value)
988 ppc_tb_t *tb_env = env->tb_env;
990 cpu_ppc_store_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
991 &tb_env->purr_offset, value);
994 static void cpu_ppc_set_tb_clk (void *opaque, uint32_t freq)
996 CPUPPCState *env = opaque;
997 PowerPCCPU *cpu = env_archcpu(env);
998 ppc_tb_t *tb_env = env->tb_env;
1000 tb_env->tb_freq = freq;
1001 tb_env->decr_freq = freq;
1002 /* There is a bug in Linux 2.4 kernels:
1003 * if a decrementer exception is pending when it enables msr_ee at startup,
1004 * it's not ready to handle it...
1006 _cpu_ppc_store_decr(cpu, 0xFFFFFFFF, 0xFFFFFFFF, 32);
1007 _cpu_ppc_store_hdecr(cpu, 0xFFFFFFFF, 0xFFFFFFFF, 32);
1008 cpu_ppc_store_purr(env, 0x0000000000000000ULL);
1011 static void timebase_save(PPCTimebase *tb)
1013 uint64_t ticks = cpu_get_host_ticks();
1014 PowerPCCPU *first_ppc_cpu = POWERPC_CPU(first_cpu);
1016 if (!first_ppc_cpu->env.tb_env) {
1017 error_report("No timebase object");
1021 /* not used anymore, we keep it for compatibility */
1022 tb->time_of_the_day_ns = qemu_clock_get_ns(QEMU_CLOCK_HOST);
1024 * tb_offset is only expected to be changed by QEMU so
1025 * there is no need to update it from KVM here
1027 tb->guest_timebase = ticks + first_ppc_cpu->env.tb_env->tb_offset;
1029 tb->runstate_paused = runstate_check(RUN_STATE_PAUSED);
1032 static void timebase_load(PPCTimebase *tb)
1035 PowerPCCPU *first_ppc_cpu = POWERPC_CPU(first_cpu);
1036 int64_t tb_off_adj, tb_off;
1039 if (!first_ppc_cpu->env.tb_env) {
1040 error_report("No timebase object");
1044 freq = first_ppc_cpu->env.tb_env->tb_freq;
1046 tb_off_adj = tb->guest_timebase - cpu_get_host_ticks();
1048 tb_off = first_ppc_cpu->env.tb_env->tb_offset;
1049 trace_ppc_tb_adjust(tb_off, tb_off_adj, tb_off_adj - tb_off,
1050 (tb_off_adj - tb_off) / freq);
1052 /* Set new offset to all CPUs */
1054 PowerPCCPU *pcpu = POWERPC_CPU(cpu);
1055 pcpu->env.tb_env->tb_offset = tb_off_adj;
1056 kvmppc_set_reg_tb_offset(pcpu, pcpu->env.tb_env->tb_offset);
1060 void cpu_ppc_clock_vm_state_change(void *opaque, int running,
1063 PPCTimebase *tb = opaque;
1073 * When migrating a running guest, read the clock just
1074 * before migration, so that the guest clock counts
1075 * during the events between:
1081 * This reduces clock difference on migration from 5s
1082 * to 0.1s (when max_downtime == 5s), because sending the
1083 * final pages of memory (which happens between vm_stop()
1084 * and pre_save()) takes max_downtime.
1086 static int timebase_pre_save(void *opaque)
1088 PPCTimebase *tb = opaque;
1090 /* guest_timebase won't be overridden in case of paused guest */
1091 if (!tb->runstate_paused) {
1098 const VMStateDescription vmstate_ppc_timebase = {
1101 .minimum_version_id = 1,
1102 .minimum_version_id_old = 1,
1103 .pre_save = timebase_pre_save,
1104 .fields = (VMStateField []) {
1105 VMSTATE_UINT64(guest_timebase, PPCTimebase),
1106 VMSTATE_INT64(time_of_the_day_ns, PPCTimebase),
1107 VMSTATE_END_OF_LIST()
1111 /* Set up (once) timebase frequency (in Hz) */
1112 clk_setup_cb cpu_ppc_tb_init (CPUPPCState *env, uint32_t freq)
1114 PowerPCCPU *cpu = env_archcpu(env);
1117 tb_env = g_malloc0(sizeof(ppc_tb_t));
1118 env->tb_env = tb_env;
1119 tb_env->flags = PPC_DECR_UNDERFLOW_TRIGGERED;
1120 if (is_book3s_arch2x(env)) {
1121 /* All Book3S 64bit CPUs implement level based DEC logic */
1122 tb_env->flags |= PPC_DECR_UNDERFLOW_LEVEL;
1124 /* Create new timer */
1125 tb_env->decr_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &cpu_ppc_decr_cb, cpu);
1126 if (env->has_hv_mode) {
1127 tb_env->hdecr_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &cpu_ppc_hdecr_cb,
1130 tb_env->hdecr_timer = NULL;
1132 cpu_ppc_set_tb_clk(env, freq);
1134 return &cpu_ppc_set_tb_clk;
1137 /* Specific helpers for POWER & PowerPC 601 RTC */
1138 void cpu_ppc601_store_rtcu (CPUPPCState *env, uint32_t value)
1140 _cpu_ppc_store_tbu(env, value);
1143 uint32_t cpu_ppc601_load_rtcu (CPUPPCState *env)
1145 return _cpu_ppc_load_tbu(env);
1148 void cpu_ppc601_store_rtcl (CPUPPCState *env, uint32_t value)
1150 cpu_ppc_store_tbl(env, value & 0x3FFFFF80);
1153 uint32_t cpu_ppc601_load_rtcl (CPUPPCState *env)
1155 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1158 /*****************************************************************************/
1159 /* PowerPC 40x timers */
1161 /* PIT, FIT & WDT */
1162 typedef struct ppc40x_timer_t ppc40x_timer_t;
1163 struct ppc40x_timer_t {
1164 uint64_t pit_reload; /* PIT auto-reload value */
1165 uint64_t fit_next; /* Tick for next FIT interrupt */
1166 QEMUTimer *fit_timer;
1167 uint64_t wdt_next; /* Tick for next WDT interrupt */
1168 QEMUTimer *wdt_timer;
1170 /* 405 have the PIT, 440 have a DECR. */
1171 unsigned int decr_excp;
1174 /* Fixed interval timer */
1175 static void cpu_4xx_fit_cb (void *opaque)
1180 ppc40x_timer_t *ppc40x_timer;
1184 cpu = env_archcpu(env);
1185 tb_env = env->tb_env;
1186 ppc40x_timer = tb_env->opaque;
1187 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1188 switch ((env->spr[SPR_40x_TCR] >> 24) & 0x3) {
1202 /* Cannot occur, but makes gcc happy */
1205 next = now + muldiv64(next, NANOSECONDS_PER_SECOND, tb_env->tb_freq);
1208 timer_mod(ppc40x_timer->fit_timer, next);
1209 env->spr[SPR_40x_TSR] |= 1 << 26;
1210 if ((env->spr[SPR_40x_TCR] >> 23) & 0x1) {
1211 ppc_set_irq(cpu, PPC_INTERRUPT_FIT, 1);
1213 LOG_TB("%s: ir %d TCR " TARGET_FMT_lx " TSR " TARGET_FMT_lx "\n", __func__,
1214 (int)((env->spr[SPR_40x_TCR] >> 23) & 0x1),
1215 env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]);
1218 /* Programmable interval timer */
1219 static void start_stop_pit (CPUPPCState *env, ppc_tb_t *tb_env, int is_excp)
1221 ppc40x_timer_t *ppc40x_timer;
1224 ppc40x_timer = tb_env->opaque;
1225 if (ppc40x_timer->pit_reload <= 1 ||
1226 !((env->spr[SPR_40x_TCR] >> 26) & 0x1) ||
1227 (is_excp && !((env->spr[SPR_40x_TCR] >> 22) & 0x1))) {
1229 LOG_TB("%s: stop PIT\n", __func__);
1230 timer_del(tb_env->decr_timer);
1232 LOG_TB("%s: start PIT %016" PRIx64 "\n",
1233 __func__, ppc40x_timer->pit_reload);
1234 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1235 next = now + muldiv64(ppc40x_timer->pit_reload,
1236 NANOSECONDS_PER_SECOND, tb_env->decr_freq);
1238 next += tb_env->decr_next - now;
1241 timer_mod(tb_env->decr_timer, next);
1242 tb_env->decr_next = next;
1246 static void cpu_4xx_pit_cb (void *opaque)
1251 ppc40x_timer_t *ppc40x_timer;
1254 cpu = env_archcpu(env);
1255 tb_env = env->tb_env;
1256 ppc40x_timer = tb_env->opaque;
1257 env->spr[SPR_40x_TSR] |= 1 << 27;
1258 if ((env->spr[SPR_40x_TCR] >> 26) & 0x1) {
1259 ppc_set_irq(cpu, ppc40x_timer->decr_excp, 1);
1261 start_stop_pit(env, tb_env, 1);
1262 LOG_TB("%s: ar %d ir %d TCR " TARGET_FMT_lx " TSR " TARGET_FMT_lx " "
1263 "%016" PRIx64 "\n", __func__,
1264 (int)((env->spr[SPR_40x_TCR] >> 22) & 0x1),
1265 (int)((env->spr[SPR_40x_TCR] >> 26) & 0x1),
1266 env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR],
1267 ppc40x_timer->pit_reload);
1270 /* Watchdog timer */
1271 static void cpu_4xx_wdt_cb (void *opaque)
1276 ppc40x_timer_t *ppc40x_timer;
1280 cpu = env_archcpu(env);
1281 tb_env = env->tb_env;
1282 ppc40x_timer = tb_env->opaque;
1283 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1284 switch ((env->spr[SPR_40x_TCR] >> 30) & 0x3) {
1298 /* Cannot occur, but makes gcc happy */
1301 next = now + muldiv64(next, NANOSECONDS_PER_SECOND, tb_env->decr_freq);
1304 LOG_TB("%s: TCR " TARGET_FMT_lx " TSR " TARGET_FMT_lx "\n", __func__,
1305 env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]);
1306 switch ((env->spr[SPR_40x_TSR] >> 30) & 0x3) {
1309 timer_mod(ppc40x_timer->wdt_timer, next);
1310 ppc40x_timer->wdt_next = next;
1311 env->spr[SPR_40x_TSR] |= 1U << 31;
1314 timer_mod(ppc40x_timer->wdt_timer, next);
1315 ppc40x_timer->wdt_next = next;
1316 env->spr[SPR_40x_TSR] |= 1 << 30;
1317 if ((env->spr[SPR_40x_TCR] >> 27) & 0x1) {
1318 ppc_set_irq(cpu, PPC_INTERRUPT_WDT, 1);
1322 env->spr[SPR_40x_TSR] &= ~0x30000000;
1323 env->spr[SPR_40x_TSR] |= env->spr[SPR_40x_TCR] & 0x30000000;
1324 switch ((env->spr[SPR_40x_TCR] >> 28) & 0x3) {
1328 case 0x1: /* Core reset */
1329 ppc40x_core_reset(cpu);
1331 case 0x2: /* Chip reset */
1332 ppc40x_chip_reset(cpu);
1334 case 0x3: /* System reset */
1335 ppc40x_system_reset(cpu);
1341 void store_40x_pit (CPUPPCState *env, target_ulong val)
1344 ppc40x_timer_t *ppc40x_timer;
1346 tb_env = env->tb_env;
1347 ppc40x_timer = tb_env->opaque;
1348 LOG_TB("%s val" TARGET_FMT_lx "\n", __func__, val);
1349 ppc40x_timer->pit_reload = val;
1350 start_stop_pit(env, tb_env, 0);
1353 target_ulong load_40x_pit (CPUPPCState *env)
1355 return cpu_ppc_load_decr(env);
1358 static void ppc_40x_set_tb_clk (void *opaque, uint32_t freq)
1360 CPUPPCState *env = opaque;
1361 ppc_tb_t *tb_env = env->tb_env;
1363 LOG_TB("%s set new frequency to %" PRIu32 "\n", __func__,
1365 tb_env->tb_freq = freq;
1366 tb_env->decr_freq = freq;
1367 /* XXX: we should also update all timers */
1370 clk_setup_cb ppc_40x_timers_init (CPUPPCState *env, uint32_t freq,
1371 unsigned int decr_excp)
1374 ppc40x_timer_t *ppc40x_timer;
1376 tb_env = g_malloc0(sizeof(ppc_tb_t));
1377 env->tb_env = tb_env;
1378 tb_env->flags = PPC_DECR_UNDERFLOW_TRIGGERED;
1379 ppc40x_timer = g_malloc0(sizeof(ppc40x_timer_t));
1380 tb_env->tb_freq = freq;
1381 tb_env->decr_freq = freq;
1382 tb_env->opaque = ppc40x_timer;
1383 LOG_TB("%s freq %" PRIu32 "\n", __func__, freq);
1384 if (ppc40x_timer != NULL) {
1385 /* We use decr timer for PIT */
1386 tb_env->decr_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &cpu_4xx_pit_cb, env);
1387 ppc40x_timer->fit_timer =
1388 timer_new_ns(QEMU_CLOCK_VIRTUAL, &cpu_4xx_fit_cb, env);
1389 ppc40x_timer->wdt_timer =
1390 timer_new_ns(QEMU_CLOCK_VIRTUAL, &cpu_4xx_wdt_cb, env);
1391 ppc40x_timer->decr_excp = decr_excp;
1394 return &ppc_40x_set_tb_clk;
1397 /*****************************************************************************/
1398 /* Embedded PowerPC Device Control Registers */
1399 typedef struct ppc_dcrn_t ppc_dcrn_t;
1401 dcr_read_cb dcr_read;
1402 dcr_write_cb dcr_write;
1406 /* XXX: on 460, DCR addresses are 32 bits wide,
1407 * using DCRIPR to get the 22 upper bits of the DCR address
1409 #define DCRN_NB 1024
1411 ppc_dcrn_t dcrn[DCRN_NB];
1412 int (*read_error)(int dcrn);
1413 int (*write_error)(int dcrn);
1416 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1420 if (dcrn < 0 || dcrn >= DCRN_NB)
1422 dcr = &dcr_env->dcrn[dcrn];
1423 if (dcr->dcr_read == NULL)
1425 *valp = (*dcr->dcr_read)(dcr->opaque, dcrn);
1430 if (dcr_env->read_error != NULL)
1431 return (*dcr_env->read_error)(dcrn);
1436 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1440 if (dcrn < 0 || dcrn >= DCRN_NB)
1442 dcr = &dcr_env->dcrn[dcrn];
1443 if (dcr->dcr_write == NULL)
1445 (*dcr->dcr_write)(dcr->opaque, dcrn, val);
1450 if (dcr_env->write_error != NULL)
1451 return (*dcr_env->write_error)(dcrn);
1456 int ppc_dcr_register (CPUPPCState *env, int dcrn, void *opaque,
1457 dcr_read_cb dcr_read, dcr_write_cb dcr_write)
1462 dcr_env = env->dcr_env;
1463 if (dcr_env == NULL)
1465 if (dcrn < 0 || dcrn >= DCRN_NB)
1467 dcr = &dcr_env->dcrn[dcrn];
1468 if (dcr->opaque != NULL ||
1469 dcr->dcr_read != NULL ||
1470 dcr->dcr_write != NULL)
1472 dcr->opaque = opaque;
1473 dcr->dcr_read = dcr_read;
1474 dcr->dcr_write = dcr_write;
1479 int ppc_dcr_init (CPUPPCState *env, int (*read_error)(int dcrn),
1480 int (*write_error)(int dcrn))
1484 dcr_env = g_malloc0(sizeof(ppc_dcr_t));
1485 dcr_env->read_error = read_error;
1486 dcr_env->write_error = write_error;
1487 env->dcr_env = dcr_env;
1492 /*****************************************************************************/
1494 void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val)
1506 printf("Set loglevel to %04" PRIx32 "\n", val);
1507 qemu_set_log(val | 0x100);
1512 int ppc_cpu_pir(PowerPCCPU *cpu)
1514 CPUPPCState *env = &cpu->env;
1515 return env->spr_cb[SPR_PIR].default_value;
1518 PowerPCCPU *ppc_get_vcpu_by_pir(int pir)
1523 PowerPCCPU *cpu = POWERPC_CPU(cs);
1525 if (ppc_cpu_pir(cpu) == pir) {
1533 void ppc_irq_reset(PowerPCCPU *cpu)
1535 CPUPPCState *env = &cpu->env;
1537 env->irq_input_state = 0;
1538 kvmppc_set_interrupt(cpu, PPC_INTERRUPT_EXT, 0);