Make qemu_peek_buffer loop until it gets it's data
[qemu-kvm.git] / target-arm / cpu.c
blobc0ddc3e3dfda3c5dfc1fed7e85a8d4adf0785296
1 /*
2 * QEMU ARM CPU
4 * Copyright (c) 2012 SUSE LINUX Products GmbH
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see
18 * <http://www.gnu.org/licenses/gpl-2.0.html>
21 #include "cpu.h"
22 #include "internals.h"
23 #include "qemu-common.h"
24 #include "hw/qdev-properties.h"
25 #include "qapi/qmp/qerror.h"
26 #if !defined(CONFIG_USER_ONLY)
27 #include "hw/loader.h"
28 #endif
29 #include "hw/arm/arm.h"
30 #include "sysemu/sysemu.h"
31 #include "sysemu/kvm.h"
33 static void arm_cpu_set_pc(CPUState *cs, vaddr value)
35 ARMCPU *cpu = ARM_CPU(cs);
37 cpu->env.regs[15] = value;
40 static bool arm_cpu_has_work(CPUState *cs)
42 return cs->interrupt_request &
43 (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD | CPU_INTERRUPT_EXITTB);
46 static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque)
48 /* Reset a single ARMCPRegInfo register */
49 ARMCPRegInfo *ri = value;
50 ARMCPU *cpu = opaque;
52 if (ri->type & ARM_CP_SPECIAL) {
53 return;
56 if (ri->resetfn) {
57 ri->resetfn(&cpu->env, ri);
58 return;
61 /* A zero offset is never possible as it would be regs[0]
62 * so we use it to indicate that reset is being handled elsewhere.
63 * This is basically only used for fields in non-core coprocessors
64 * (like the pxa2xx ones).
66 if (!ri->fieldoffset) {
67 return;
70 if (cpreg_field_is_64bit(ri)) {
71 CPREG_FIELD64(&cpu->env, ri) = ri->resetvalue;
72 } else {
73 CPREG_FIELD32(&cpu->env, ri) = ri->resetvalue;
77 /* CPUClass::reset() */
78 static void arm_cpu_reset(CPUState *s)
80 ARMCPU *cpu = ARM_CPU(s);
81 ARMCPUClass *acc = ARM_CPU_GET_CLASS(cpu);
82 CPUARMState *env = &cpu->env;
84 acc->parent_reset(s);
86 memset(env, 0, offsetof(CPUARMState, features));
87 g_hash_table_foreach(cpu->cp_regs, cp_reg_reset, cpu);
88 env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid;
89 env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0;
90 env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1;
91 env->vfp.xregs[ARM_VFP_MVFR2] = cpu->mvfr2;
93 if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
94 env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
97 if (arm_feature(env, ARM_FEATURE_AARCH64)) {
98 /* 64 bit CPUs always start in 64 bit mode */
99 env->aarch64 = 1;
100 #if defined(CONFIG_USER_ONLY)
101 env->pstate = PSTATE_MODE_EL0t;
102 /* Userspace expects access to CTL_EL0 and the cache ops */
103 env->cp15.c1_sys |= SCTLR_UCT | SCTLR_UCI;
104 /* and to the FP/Neon instructions */
105 env->cp15.c1_coproc = deposit64(env->cp15.c1_coproc, 20, 2, 3);
106 #else
107 env->pstate = PSTATE_MODE_EL1h;
108 env->pc = cpu->rvbar;
109 #endif
110 } else {
111 #if defined(CONFIG_USER_ONLY)
112 /* Userspace expects access to cp10 and cp11 for FP/Neon */
113 env->cp15.c1_coproc = deposit64(env->cp15.c1_coproc, 20, 4, 0xf);
114 #endif
117 #if defined(CONFIG_USER_ONLY)
118 env->uncached_cpsr = ARM_CPU_MODE_USR;
119 /* For user mode we must enable access to coprocessors */
120 env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30;
121 if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
122 env->cp15.c15_cpar = 3;
123 } else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
124 env->cp15.c15_cpar = 1;
126 #else
127 /* SVC mode with interrupts disabled. */
128 env->uncached_cpsr = ARM_CPU_MODE_SVC;
129 env->daif = PSTATE_D | PSTATE_A | PSTATE_I | PSTATE_F;
130 /* On ARMv7-M the CPSR_I is the value of the PRIMASK register, and is
131 clear at reset. Initial SP and PC are loaded from ROM. */
132 if (IS_M(env)) {
133 uint32_t pc;
134 uint8_t *rom;
135 env->daif &= ~PSTATE_I;
136 rom = rom_ptr(0);
137 if (rom) {
138 /* We should really use ldl_phys here, in case the guest
139 modified flash and reset itself. However images
140 loaded via -kernel have not been copied yet, so load the
141 values directly from there. */
142 env->regs[13] = ldl_p(rom) & 0xFFFFFFFC;
143 pc = ldl_p(rom + 4);
144 env->thumb = pc & 1;
145 env->regs[15] = pc & ~1;
149 if (env->cp15.c1_sys & SCTLR_V) {
150 env->regs[15] = 0xFFFF0000;
153 env->vfp.xregs[ARM_VFP_FPEXC] = 0;
154 #endif
155 set_flush_to_zero(1, &env->vfp.standard_fp_status);
156 set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status);
157 set_default_nan_mode(1, &env->vfp.standard_fp_status);
158 set_float_detect_tininess(float_tininess_before_rounding,
159 &env->vfp.fp_status);
160 set_float_detect_tininess(float_tininess_before_rounding,
161 &env->vfp.standard_fp_status);
162 tlb_flush(s, 1);
163 /* Reset is a state change for some CPUARMState fields which we
164 * bake assumptions about into translated code, so we need to
165 * tb_flush().
167 tb_flush(env);
170 #ifndef CONFIG_USER_ONLY
171 static void arm_cpu_set_irq(void *opaque, int irq, int level)
173 ARMCPU *cpu = opaque;
174 CPUState *cs = CPU(cpu);
176 switch (irq) {
177 case ARM_CPU_IRQ:
178 if (level) {
179 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
180 } else {
181 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
183 break;
184 case ARM_CPU_FIQ:
185 if (level) {
186 cpu_interrupt(cs, CPU_INTERRUPT_FIQ);
187 } else {
188 cpu_reset_interrupt(cs, CPU_INTERRUPT_FIQ);
190 break;
191 default:
192 hw_error("arm_cpu_set_irq: Bad interrupt line %d\n", irq);
196 static void arm_cpu_kvm_set_irq(void *opaque, int irq, int level)
198 #ifdef CONFIG_KVM
199 ARMCPU *cpu = opaque;
200 CPUState *cs = CPU(cpu);
201 int kvm_irq = KVM_ARM_IRQ_TYPE_CPU << KVM_ARM_IRQ_TYPE_SHIFT;
203 switch (irq) {
204 case ARM_CPU_IRQ:
205 kvm_irq |= KVM_ARM_IRQ_CPU_IRQ;
206 break;
207 case ARM_CPU_FIQ:
208 kvm_irq |= KVM_ARM_IRQ_CPU_FIQ;
209 break;
210 default:
211 hw_error("arm_cpu_kvm_set_irq: Bad interrupt line %d\n", irq);
213 kvm_irq |= cs->cpu_index << KVM_ARM_IRQ_VCPU_SHIFT;
214 kvm_set_irq(kvm_state, kvm_irq, level ? 1 : 0);
215 #endif
217 #endif
219 static inline void set_feature(CPUARMState *env, int feature)
221 env->features |= 1ULL << feature;
224 static void arm_cpu_initfn(Object *obj)
226 CPUState *cs = CPU(obj);
227 ARMCPU *cpu = ARM_CPU(obj);
228 static bool inited;
230 cs->env_ptr = &cpu->env;
231 cpu_exec_init(&cpu->env);
232 cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal,
233 g_free, g_free);
235 #ifndef CONFIG_USER_ONLY
236 /* Our inbound IRQ and FIQ lines */
237 if (kvm_enabled()) {
238 qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 2);
239 } else {
240 qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 2);
243 cpu->gt_timer[GTIMER_PHYS] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
244 arm_gt_ptimer_cb, cpu);
245 cpu->gt_timer[GTIMER_VIRT] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
246 arm_gt_vtimer_cb, cpu);
247 qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs,
248 ARRAY_SIZE(cpu->gt_timer_outputs));
249 #endif
251 /* DTB consumers generally don't in fact care what the 'compatible'
252 * string is, so always provide some string and trust that a hypothetical
253 * picky DTB consumer will also provide a helpful error message.
255 cpu->dtb_compatible = "qemu,unknown";
256 cpu->kvm_target = QEMU_KVM_ARM_TARGET_NONE;
258 if (tcg_enabled() && !inited) {
259 inited = true;
260 arm_translate_init();
264 static Property arm_cpu_reset_cbar_property =
265 DEFINE_PROP_UINT64("reset-cbar", ARMCPU, reset_cbar, 0);
267 static Property arm_cpu_reset_hivecs_property =
268 DEFINE_PROP_BOOL("reset-hivecs", ARMCPU, reset_hivecs, false);
270 static Property arm_cpu_rvbar_property =
271 DEFINE_PROP_UINT64("rvbar", ARMCPU, rvbar, 0);
273 static void arm_cpu_post_init(Object *obj)
275 ARMCPU *cpu = ARM_CPU(obj);
277 if (arm_feature(&cpu->env, ARM_FEATURE_CBAR) ||
278 arm_feature(&cpu->env, ARM_FEATURE_CBAR_RO)) {
279 qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_cbar_property,
280 &error_abort);
283 if (!arm_feature(&cpu->env, ARM_FEATURE_M)) {
284 qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_hivecs_property,
285 &error_abort);
288 if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) {
289 qdev_property_add_static(DEVICE(obj), &arm_cpu_rvbar_property,
290 &error_abort);
294 static void arm_cpu_finalizefn(Object *obj)
296 ARMCPU *cpu = ARM_CPU(obj);
297 g_hash_table_destroy(cpu->cp_regs);
300 static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
302 CPUState *cs = CPU(dev);
303 ARMCPU *cpu = ARM_CPU(dev);
304 ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev);
305 CPUARMState *env = &cpu->env;
307 /* Some features automatically imply others: */
308 if (arm_feature(env, ARM_FEATURE_V8)) {
309 set_feature(env, ARM_FEATURE_V7);
310 set_feature(env, ARM_FEATURE_ARM_DIV);
311 set_feature(env, ARM_FEATURE_LPAE);
312 set_feature(env, ARM_FEATURE_V8_AES);
314 if (arm_feature(env, ARM_FEATURE_V7)) {
315 set_feature(env, ARM_FEATURE_VAPA);
316 set_feature(env, ARM_FEATURE_THUMB2);
317 set_feature(env, ARM_FEATURE_MPIDR);
318 if (!arm_feature(env, ARM_FEATURE_M)) {
319 set_feature(env, ARM_FEATURE_V6K);
320 } else {
321 set_feature(env, ARM_FEATURE_V6);
324 if (arm_feature(env, ARM_FEATURE_V6K)) {
325 set_feature(env, ARM_FEATURE_V6);
326 set_feature(env, ARM_FEATURE_MVFR);
328 if (arm_feature(env, ARM_FEATURE_V6)) {
329 set_feature(env, ARM_FEATURE_V5);
330 if (!arm_feature(env, ARM_FEATURE_M)) {
331 set_feature(env, ARM_FEATURE_AUXCR);
334 if (arm_feature(env, ARM_FEATURE_V5)) {
335 set_feature(env, ARM_FEATURE_V4T);
337 if (arm_feature(env, ARM_FEATURE_M)) {
338 set_feature(env, ARM_FEATURE_THUMB_DIV);
340 if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {
341 set_feature(env, ARM_FEATURE_THUMB_DIV);
343 if (arm_feature(env, ARM_FEATURE_VFP4)) {
344 set_feature(env, ARM_FEATURE_VFP3);
346 if (arm_feature(env, ARM_FEATURE_VFP3)) {
347 set_feature(env, ARM_FEATURE_VFP);
349 if (arm_feature(env, ARM_FEATURE_LPAE)) {
350 set_feature(env, ARM_FEATURE_V7MP);
351 set_feature(env, ARM_FEATURE_PXN);
353 if (arm_feature(env, ARM_FEATURE_CBAR_RO)) {
354 set_feature(env, ARM_FEATURE_CBAR);
357 if (cpu->reset_hivecs) {
358 cpu->reset_sctlr |= (1 << 13);
361 register_cp_regs_for_features(cpu);
362 arm_cpu_register_gdb_regs_for_features(cpu);
364 init_cpreg_list(cpu);
366 cpu_reset(cs);
367 qemu_init_vcpu(cs);
369 acc->parent_realize(dev, errp);
372 static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
374 ObjectClass *oc;
375 char *typename;
377 if (!cpu_model) {
378 return NULL;
381 typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpu_model);
382 oc = object_class_by_name(typename);
383 g_free(typename);
384 if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU) ||
385 object_class_is_abstract(oc)) {
386 return NULL;
388 return oc;
391 /* CPU models. These are not needed for the AArch64 linux-user build. */
392 #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
394 static void arm926_initfn(Object *obj)
396 ARMCPU *cpu = ARM_CPU(obj);
398 cpu->dtb_compatible = "arm,arm926";
399 set_feature(&cpu->env, ARM_FEATURE_V5);
400 set_feature(&cpu->env, ARM_FEATURE_VFP);
401 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
402 set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
403 cpu->midr = 0x41069265;
404 cpu->reset_fpsid = 0x41011090;
405 cpu->ctr = 0x1dd20d2;
406 cpu->reset_sctlr = 0x00090078;
409 static void arm946_initfn(Object *obj)
411 ARMCPU *cpu = ARM_CPU(obj);
413 cpu->dtb_compatible = "arm,arm946";
414 set_feature(&cpu->env, ARM_FEATURE_V5);
415 set_feature(&cpu->env, ARM_FEATURE_MPU);
416 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
417 cpu->midr = 0x41059461;
418 cpu->ctr = 0x0f004006;
419 cpu->reset_sctlr = 0x00000078;
422 static void arm1026_initfn(Object *obj)
424 ARMCPU *cpu = ARM_CPU(obj);
426 cpu->dtb_compatible = "arm,arm1026";
427 set_feature(&cpu->env, ARM_FEATURE_V5);
428 set_feature(&cpu->env, ARM_FEATURE_VFP);
429 set_feature(&cpu->env, ARM_FEATURE_AUXCR);
430 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
431 set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
432 cpu->midr = 0x4106a262;
433 cpu->reset_fpsid = 0x410110a0;
434 cpu->ctr = 0x1dd20d2;
435 cpu->reset_sctlr = 0x00090078;
436 cpu->reset_auxcr = 1;
438 /* The 1026 had an IFAR at c6,c0,0,1 rather than the ARMv6 c6,c0,0,2 */
439 ARMCPRegInfo ifar = {
440 .name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 1,
441 .access = PL1_RW,
442 .fieldoffset = offsetofhigh32(CPUARMState, cp15.far_el1),
443 .resetvalue = 0
445 define_one_arm_cp_reg(cpu, &ifar);
449 static void arm1136_r2_initfn(Object *obj)
451 ARMCPU *cpu = ARM_CPU(obj);
452 /* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an
453 * older core than plain "arm1136". In particular this does not
454 * have the v6K features.
455 * These ID register values are correct for 1136 but may be wrong
456 * for 1136_r2 (in particular r0p2 does not actually implement most
457 * of the ID registers).
460 cpu->dtb_compatible = "arm,arm1136";
461 set_feature(&cpu->env, ARM_FEATURE_V6);
462 set_feature(&cpu->env, ARM_FEATURE_VFP);
463 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
464 set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
465 set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
466 cpu->midr = 0x4107b362;
467 cpu->reset_fpsid = 0x410120b4;
468 cpu->mvfr0 = 0x11111111;
469 cpu->mvfr1 = 0x00000000;
470 cpu->ctr = 0x1dd20d2;
471 cpu->reset_sctlr = 0x00050078;
472 cpu->id_pfr0 = 0x111;
473 cpu->id_pfr1 = 0x1;
474 cpu->id_dfr0 = 0x2;
475 cpu->id_afr0 = 0x3;
476 cpu->id_mmfr0 = 0x01130003;
477 cpu->id_mmfr1 = 0x10030302;
478 cpu->id_mmfr2 = 0x01222110;
479 cpu->id_isar0 = 0x00140011;
480 cpu->id_isar1 = 0x12002111;
481 cpu->id_isar2 = 0x11231111;
482 cpu->id_isar3 = 0x01102131;
483 cpu->id_isar4 = 0x141;
484 cpu->reset_auxcr = 7;
487 static void arm1136_initfn(Object *obj)
489 ARMCPU *cpu = ARM_CPU(obj);
491 cpu->dtb_compatible = "arm,arm1136";
492 set_feature(&cpu->env, ARM_FEATURE_V6K);
493 set_feature(&cpu->env, ARM_FEATURE_V6);
494 set_feature(&cpu->env, ARM_FEATURE_VFP);
495 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
496 set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
497 set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
498 cpu->midr = 0x4117b363;
499 cpu->reset_fpsid = 0x410120b4;
500 cpu->mvfr0 = 0x11111111;
501 cpu->mvfr1 = 0x00000000;
502 cpu->ctr = 0x1dd20d2;
503 cpu->reset_sctlr = 0x00050078;
504 cpu->id_pfr0 = 0x111;
505 cpu->id_pfr1 = 0x1;
506 cpu->id_dfr0 = 0x2;
507 cpu->id_afr0 = 0x3;
508 cpu->id_mmfr0 = 0x01130003;
509 cpu->id_mmfr1 = 0x10030302;
510 cpu->id_mmfr2 = 0x01222110;
511 cpu->id_isar0 = 0x00140011;
512 cpu->id_isar1 = 0x12002111;
513 cpu->id_isar2 = 0x11231111;
514 cpu->id_isar3 = 0x01102131;
515 cpu->id_isar4 = 0x141;
516 cpu->reset_auxcr = 7;
519 static void arm1176_initfn(Object *obj)
521 ARMCPU *cpu = ARM_CPU(obj);
523 cpu->dtb_compatible = "arm,arm1176";
524 set_feature(&cpu->env, ARM_FEATURE_V6K);
525 set_feature(&cpu->env, ARM_FEATURE_VFP);
526 set_feature(&cpu->env, ARM_FEATURE_VAPA);
527 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
528 set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
529 set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
530 cpu->midr = 0x410fb767;
531 cpu->reset_fpsid = 0x410120b5;
532 cpu->mvfr0 = 0x11111111;
533 cpu->mvfr1 = 0x00000000;
534 cpu->ctr = 0x1dd20d2;
535 cpu->reset_sctlr = 0x00050078;
536 cpu->id_pfr0 = 0x111;
537 cpu->id_pfr1 = 0x11;
538 cpu->id_dfr0 = 0x33;
539 cpu->id_afr0 = 0;
540 cpu->id_mmfr0 = 0x01130003;
541 cpu->id_mmfr1 = 0x10030302;
542 cpu->id_mmfr2 = 0x01222100;
543 cpu->id_isar0 = 0x0140011;
544 cpu->id_isar1 = 0x12002111;
545 cpu->id_isar2 = 0x11231121;
546 cpu->id_isar3 = 0x01102131;
547 cpu->id_isar4 = 0x01141;
548 cpu->reset_auxcr = 7;
551 static void arm11mpcore_initfn(Object *obj)
553 ARMCPU *cpu = ARM_CPU(obj);
555 cpu->dtb_compatible = "arm,arm11mpcore";
556 set_feature(&cpu->env, ARM_FEATURE_V6K);
557 set_feature(&cpu->env, ARM_FEATURE_VFP);
558 set_feature(&cpu->env, ARM_FEATURE_VAPA);
559 set_feature(&cpu->env, ARM_FEATURE_MPIDR);
560 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
561 cpu->midr = 0x410fb022;
562 cpu->reset_fpsid = 0x410120b4;
563 cpu->mvfr0 = 0x11111111;
564 cpu->mvfr1 = 0x00000000;
565 cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */
566 cpu->id_pfr0 = 0x111;
567 cpu->id_pfr1 = 0x1;
568 cpu->id_dfr0 = 0;
569 cpu->id_afr0 = 0x2;
570 cpu->id_mmfr0 = 0x01100103;
571 cpu->id_mmfr1 = 0x10020302;
572 cpu->id_mmfr2 = 0x01222000;
573 cpu->id_isar0 = 0x00100011;
574 cpu->id_isar1 = 0x12002111;
575 cpu->id_isar2 = 0x11221011;
576 cpu->id_isar3 = 0x01102131;
577 cpu->id_isar4 = 0x141;
578 cpu->reset_auxcr = 1;
581 static void cortex_m3_initfn(Object *obj)
583 ARMCPU *cpu = ARM_CPU(obj);
584 set_feature(&cpu->env, ARM_FEATURE_V7);
585 set_feature(&cpu->env, ARM_FEATURE_M);
586 cpu->midr = 0x410fc231;
589 static void arm_v7m_class_init(ObjectClass *oc, void *data)
591 #ifndef CONFIG_USER_ONLY
592 CPUClass *cc = CPU_CLASS(oc);
594 cc->do_interrupt = arm_v7m_cpu_do_interrupt;
595 #endif
598 static const ARMCPRegInfo cortexa8_cp_reginfo[] = {
599 { .name = "L2LOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 0,
600 .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
601 { .name = "L2AUXCR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
602 .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
603 REGINFO_SENTINEL
606 static void cortex_a8_initfn(Object *obj)
608 ARMCPU *cpu = ARM_CPU(obj);
610 cpu->dtb_compatible = "arm,cortex-a8";
611 set_feature(&cpu->env, ARM_FEATURE_V7);
612 set_feature(&cpu->env, ARM_FEATURE_VFP3);
613 set_feature(&cpu->env, ARM_FEATURE_NEON);
614 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
615 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
616 cpu->midr = 0x410fc080;
617 cpu->reset_fpsid = 0x410330c0;
618 cpu->mvfr0 = 0x11110222;
619 cpu->mvfr1 = 0x00011100;
620 cpu->ctr = 0x82048004;
621 cpu->reset_sctlr = 0x00c50078;
622 cpu->id_pfr0 = 0x1031;
623 cpu->id_pfr1 = 0x11;
624 cpu->id_dfr0 = 0x400;
625 cpu->id_afr0 = 0;
626 cpu->id_mmfr0 = 0x31100003;
627 cpu->id_mmfr1 = 0x20000000;
628 cpu->id_mmfr2 = 0x01202000;
629 cpu->id_mmfr3 = 0x11;
630 cpu->id_isar0 = 0x00101111;
631 cpu->id_isar1 = 0x12112111;
632 cpu->id_isar2 = 0x21232031;
633 cpu->id_isar3 = 0x11112131;
634 cpu->id_isar4 = 0x00111142;
635 cpu->clidr = (1 << 27) | (2 << 24) | 3;
636 cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */
637 cpu->ccsidr[1] = 0x2007e01a; /* 16k L1 icache. */
638 cpu->ccsidr[2] = 0xf0000000; /* No L2 icache. */
639 cpu->reset_auxcr = 2;
640 define_arm_cp_regs(cpu, cortexa8_cp_reginfo);
643 static const ARMCPRegInfo cortexa9_cp_reginfo[] = {
644 /* power_control should be set to maximum latency. Again,
645 * default to 0 and set by private hook
647 { .name = "A9_PWRCTL", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 0,
648 .access = PL1_RW, .resetvalue = 0,
649 .fieldoffset = offsetof(CPUARMState, cp15.c15_power_control) },
650 { .name = "A9_DIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 1,
651 .access = PL1_RW, .resetvalue = 0,
652 .fieldoffset = offsetof(CPUARMState, cp15.c15_diagnostic) },
653 { .name = "A9_PWRDIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 2,
654 .access = PL1_RW, .resetvalue = 0,
655 .fieldoffset = offsetof(CPUARMState, cp15.c15_power_diagnostic) },
656 { .name = "NEONBUSY", .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0,
657 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
658 /* TLB lockdown control */
659 { .name = "TLB_LOCKR", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 2,
660 .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
661 { .name = "TLB_LOCKW", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 4,
662 .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
663 { .name = "TLB_VA", .cp = 15, .crn = 15, .crm = 5, .opc1 = 5, .opc2 = 2,
664 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
665 { .name = "TLB_PA", .cp = 15, .crn = 15, .crm = 6, .opc1 = 5, .opc2 = 2,
666 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
667 { .name = "TLB_ATTR", .cp = 15, .crn = 15, .crm = 7, .opc1 = 5, .opc2 = 2,
668 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
669 REGINFO_SENTINEL
672 static void cortex_a9_initfn(Object *obj)
674 ARMCPU *cpu = ARM_CPU(obj);
676 cpu->dtb_compatible = "arm,cortex-a9";
677 set_feature(&cpu->env, ARM_FEATURE_V7);
678 set_feature(&cpu->env, ARM_FEATURE_VFP3);
679 set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
680 set_feature(&cpu->env, ARM_FEATURE_NEON);
681 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
682 /* Note that A9 supports the MP extensions even for
683 * A9UP and single-core A9MP (which are both different
684 * and valid configurations; we don't model A9UP).
686 set_feature(&cpu->env, ARM_FEATURE_V7MP);
687 set_feature(&cpu->env, ARM_FEATURE_CBAR);
688 cpu->midr = 0x410fc090;
689 cpu->reset_fpsid = 0x41033090;
690 cpu->mvfr0 = 0x11110222;
691 cpu->mvfr1 = 0x01111111;
692 cpu->ctr = 0x80038003;
693 cpu->reset_sctlr = 0x00c50078;
694 cpu->id_pfr0 = 0x1031;
695 cpu->id_pfr1 = 0x11;
696 cpu->id_dfr0 = 0x000;
697 cpu->id_afr0 = 0;
698 cpu->id_mmfr0 = 0x00100103;
699 cpu->id_mmfr1 = 0x20000000;
700 cpu->id_mmfr2 = 0x01230000;
701 cpu->id_mmfr3 = 0x00002111;
702 cpu->id_isar0 = 0x00101111;
703 cpu->id_isar1 = 0x13112111;
704 cpu->id_isar2 = 0x21232041;
705 cpu->id_isar3 = 0x11112131;
706 cpu->id_isar4 = 0x00111142;
707 cpu->clidr = (1 << 27) | (1 << 24) | 3;
708 cpu->ccsidr[0] = 0xe00fe015; /* 16k L1 dcache. */
709 cpu->ccsidr[1] = 0x200fe015; /* 16k L1 icache. */
710 define_arm_cp_regs(cpu, cortexa9_cp_reginfo);
713 #ifndef CONFIG_USER_ONLY
714 static uint64_t a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
716 /* Linux wants the number of processors from here.
717 * Might as well set the interrupt-controller bit too.
719 return ((smp_cpus - 1) << 24) | (1 << 23);
721 #endif
723 static const ARMCPRegInfo cortexa15_cp_reginfo[] = {
724 #ifndef CONFIG_USER_ONLY
725 { .name = "L2CTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
726 .access = PL1_RW, .resetvalue = 0, .readfn = a15_l2ctlr_read,
727 .writefn = arm_cp_write_ignore, },
728 #endif
729 { .name = "L2ECTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 3,
730 .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
731 REGINFO_SENTINEL
734 static void cortex_a15_initfn(Object *obj)
736 ARMCPU *cpu = ARM_CPU(obj);
738 cpu->dtb_compatible = "arm,cortex-a15";
739 set_feature(&cpu->env, ARM_FEATURE_V7);
740 set_feature(&cpu->env, ARM_FEATURE_VFP4);
741 set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
742 set_feature(&cpu->env, ARM_FEATURE_NEON);
743 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
744 set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
745 set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
746 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
747 set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
748 set_feature(&cpu->env, ARM_FEATURE_LPAE);
749 cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A15;
750 cpu->midr = 0x412fc0f1;
751 cpu->reset_fpsid = 0x410430f0;
752 cpu->mvfr0 = 0x10110222;
753 cpu->mvfr1 = 0x11111111;
754 cpu->ctr = 0x8444c004;
755 cpu->reset_sctlr = 0x00c50078;
756 cpu->id_pfr0 = 0x00001131;
757 cpu->id_pfr1 = 0x00011011;
758 cpu->id_dfr0 = 0x02010555;
759 cpu->id_afr0 = 0x00000000;
760 cpu->id_mmfr0 = 0x10201105;
761 cpu->id_mmfr1 = 0x20000000;
762 cpu->id_mmfr2 = 0x01240000;
763 cpu->id_mmfr3 = 0x02102211;
764 cpu->id_isar0 = 0x02101110;
765 cpu->id_isar1 = 0x13112111;
766 cpu->id_isar2 = 0x21232041;
767 cpu->id_isar3 = 0x11112131;
768 cpu->id_isar4 = 0x10011142;
769 cpu->clidr = 0x0a200023;
770 cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */
771 cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */
772 cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */
773 define_arm_cp_regs(cpu, cortexa15_cp_reginfo);
776 static void ti925t_initfn(Object *obj)
778 ARMCPU *cpu = ARM_CPU(obj);
779 set_feature(&cpu->env, ARM_FEATURE_V4T);
780 set_feature(&cpu->env, ARM_FEATURE_OMAPCP);
781 cpu->midr = ARM_CPUID_TI925T;
782 cpu->ctr = 0x5109149;
783 cpu->reset_sctlr = 0x00000070;
786 static void sa1100_initfn(Object *obj)
788 ARMCPU *cpu = ARM_CPU(obj);
790 cpu->dtb_compatible = "intel,sa1100";
791 set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
792 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
793 cpu->midr = 0x4401A11B;
794 cpu->reset_sctlr = 0x00000070;
797 static void sa1110_initfn(Object *obj)
799 ARMCPU *cpu = ARM_CPU(obj);
800 set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
801 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
802 cpu->midr = 0x6901B119;
803 cpu->reset_sctlr = 0x00000070;
806 static void pxa250_initfn(Object *obj)
808 ARMCPU *cpu = ARM_CPU(obj);
810 cpu->dtb_compatible = "marvell,xscale";
811 set_feature(&cpu->env, ARM_FEATURE_V5);
812 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
813 cpu->midr = 0x69052100;
814 cpu->ctr = 0xd172172;
815 cpu->reset_sctlr = 0x00000078;
818 static void pxa255_initfn(Object *obj)
820 ARMCPU *cpu = ARM_CPU(obj);
822 cpu->dtb_compatible = "marvell,xscale";
823 set_feature(&cpu->env, ARM_FEATURE_V5);
824 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
825 cpu->midr = 0x69052d00;
826 cpu->ctr = 0xd172172;
827 cpu->reset_sctlr = 0x00000078;
830 static void pxa260_initfn(Object *obj)
832 ARMCPU *cpu = ARM_CPU(obj);
834 cpu->dtb_compatible = "marvell,xscale";
835 set_feature(&cpu->env, ARM_FEATURE_V5);
836 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
837 cpu->midr = 0x69052903;
838 cpu->ctr = 0xd172172;
839 cpu->reset_sctlr = 0x00000078;
842 static void pxa261_initfn(Object *obj)
844 ARMCPU *cpu = ARM_CPU(obj);
846 cpu->dtb_compatible = "marvell,xscale";
847 set_feature(&cpu->env, ARM_FEATURE_V5);
848 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
849 cpu->midr = 0x69052d05;
850 cpu->ctr = 0xd172172;
851 cpu->reset_sctlr = 0x00000078;
854 static void pxa262_initfn(Object *obj)
856 ARMCPU *cpu = ARM_CPU(obj);
858 cpu->dtb_compatible = "marvell,xscale";
859 set_feature(&cpu->env, ARM_FEATURE_V5);
860 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
861 cpu->midr = 0x69052d06;
862 cpu->ctr = 0xd172172;
863 cpu->reset_sctlr = 0x00000078;
866 static void pxa270a0_initfn(Object *obj)
868 ARMCPU *cpu = ARM_CPU(obj);
870 cpu->dtb_compatible = "marvell,xscale";
871 set_feature(&cpu->env, ARM_FEATURE_V5);
872 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
873 set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
874 cpu->midr = 0x69054110;
875 cpu->ctr = 0xd172172;
876 cpu->reset_sctlr = 0x00000078;
879 static void pxa270a1_initfn(Object *obj)
881 ARMCPU *cpu = ARM_CPU(obj);
883 cpu->dtb_compatible = "marvell,xscale";
884 set_feature(&cpu->env, ARM_FEATURE_V5);
885 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
886 set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
887 cpu->midr = 0x69054111;
888 cpu->ctr = 0xd172172;
889 cpu->reset_sctlr = 0x00000078;
892 static void pxa270b0_initfn(Object *obj)
894 ARMCPU *cpu = ARM_CPU(obj);
896 cpu->dtb_compatible = "marvell,xscale";
897 set_feature(&cpu->env, ARM_FEATURE_V5);
898 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
899 set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
900 cpu->midr = 0x69054112;
901 cpu->ctr = 0xd172172;
902 cpu->reset_sctlr = 0x00000078;
905 static void pxa270b1_initfn(Object *obj)
907 ARMCPU *cpu = ARM_CPU(obj);
909 cpu->dtb_compatible = "marvell,xscale";
910 set_feature(&cpu->env, ARM_FEATURE_V5);
911 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
912 set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
913 cpu->midr = 0x69054113;
914 cpu->ctr = 0xd172172;
915 cpu->reset_sctlr = 0x00000078;
918 static void pxa270c0_initfn(Object *obj)
920 ARMCPU *cpu = ARM_CPU(obj);
922 cpu->dtb_compatible = "marvell,xscale";
923 set_feature(&cpu->env, ARM_FEATURE_V5);
924 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
925 set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
926 cpu->midr = 0x69054114;
927 cpu->ctr = 0xd172172;
928 cpu->reset_sctlr = 0x00000078;
931 static void pxa270c5_initfn(Object *obj)
933 ARMCPU *cpu = ARM_CPU(obj);
935 cpu->dtb_compatible = "marvell,xscale";
936 set_feature(&cpu->env, ARM_FEATURE_V5);
937 set_feature(&cpu->env, ARM_FEATURE_XSCALE);
938 set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
939 cpu->midr = 0x69054117;
940 cpu->ctr = 0xd172172;
941 cpu->reset_sctlr = 0x00000078;
944 #ifdef CONFIG_USER_ONLY
945 static void arm_any_initfn(Object *obj)
947 ARMCPU *cpu = ARM_CPU(obj);
948 set_feature(&cpu->env, ARM_FEATURE_V8);
949 set_feature(&cpu->env, ARM_FEATURE_VFP4);
950 set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
951 set_feature(&cpu->env, ARM_FEATURE_NEON);
952 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
953 set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
954 set_feature(&cpu->env, ARM_FEATURE_V7MP);
955 set_feature(&cpu->env, ARM_FEATURE_CRC);
956 #ifdef TARGET_AARCH64
957 set_feature(&cpu->env, ARM_FEATURE_AARCH64);
958 #endif
959 cpu->midr = 0xffffffff;
961 #endif
963 #endif /* !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) */
965 typedef struct ARMCPUInfo {
966 const char *name;
967 void (*initfn)(Object *obj);
968 void (*class_init)(ObjectClass *oc, void *data);
969 } ARMCPUInfo;
971 static const ARMCPUInfo arm_cpus[] = {
972 #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
973 { .name = "arm926", .initfn = arm926_initfn },
974 { .name = "arm946", .initfn = arm946_initfn },
975 { .name = "arm1026", .initfn = arm1026_initfn },
976 /* What QEMU calls "arm1136-r2" is actually the 1136 r0p2, i.e. an
977 * older core than plain "arm1136". In particular this does not
978 * have the v6K features.
980 { .name = "arm1136-r2", .initfn = arm1136_r2_initfn },
981 { .name = "arm1136", .initfn = arm1136_initfn },
982 { .name = "arm1176", .initfn = arm1176_initfn },
983 { .name = "arm11mpcore", .initfn = arm11mpcore_initfn },
984 { .name = "cortex-m3", .initfn = cortex_m3_initfn,
985 .class_init = arm_v7m_class_init },
986 { .name = "cortex-a8", .initfn = cortex_a8_initfn },
987 { .name = "cortex-a9", .initfn = cortex_a9_initfn },
988 { .name = "cortex-a15", .initfn = cortex_a15_initfn },
989 { .name = "ti925t", .initfn = ti925t_initfn },
990 { .name = "sa1100", .initfn = sa1100_initfn },
991 { .name = "sa1110", .initfn = sa1110_initfn },
992 { .name = "pxa250", .initfn = pxa250_initfn },
993 { .name = "pxa255", .initfn = pxa255_initfn },
994 { .name = "pxa260", .initfn = pxa260_initfn },
995 { .name = "pxa261", .initfn = pxa261_initfn },
996 { .name = "pxa262", .initfn = pxa262_initfn },
997 /* "pxa270" is an alias for "pxa270-a0" */
998 { .name = "pxa270", .initfn = pxa270a0_initfn },
999 { .name = "pxa270-a0", .initfn = pxa270a0_initfn },
1000 { .name = "pxa270-a1", .initfn = pxa270a1_initfn },
1001 { .name = "pxa270-b0", .initfn = pxa270b0_initfn },
1002 { .name = "pxa270-b1", .initfn = pxa270b1_initfn },
1003 { .name = "pxa270-c0", .initfn = pxa270c0_initfn },
1004 { .name = "pxa270-c5", .initfn = pxa270c5_initfn },
1005 #ifdef CONFIG_USER_ONLY
1006 { .name = "any", .initfn = arm_any_initfn },
1007 #endif
1008 #endif
1009 { .name = NULL }
1012 static Property arm_cpu_properties[] = {
1013 DEFINE_PROP_BOOL("start-powered-off", ARMCPU, start_powered_off, false),
1014 DEFINE_PROP_UINT32("midr", ARMCPU, midr, 0),
1015 DEFINE_PROP_END_OF_LIST()
1018 static void arm_cpu_class_init(ObjectClass *oc, void *data)
1020 ARMCPUClass *acc = ARM_CPU_CLASS(oc);
1021 CPUClass *cc = CPU_CLASS(acc);
1022 DeviceClass *dc = DEVICE_CLASS(oc);
1024 acc->parent_realize = dc->realize;
1025 dc->realize = arm_cpu_realizefn;
1026 dc->props = arm_cpu_properties;
1028 acc->parent_reset = cc->reset;
1029 cc->reset = arm_cpu_reset;
1031 cc->class_by_name = arm_cpu_class_by_name;
1032 cc->has_work = arm_cpu_has_work;
1033 cc->do_interrupt = arm_cpu_do_interrupt;
1034 cc->dump_state = arm_cpu_dump_state;
1035 cc->set_pc = arm_cpu_set_pc;
1036 cc->gdb_read_register = arm_cpu_gdb_read_register;
1037 cc->gdb_write_register = arm_cpu_gdb_write_register;
1038 #ifdef CONFIG_USER_ONLY
1039 cc->handle_mmu_fault = arm_cpu_handle_mmu_fault;
1040 #else
1041 cc->get_phys_page_debug = arm_cpu_get_phys_page_debug;
1042 cc->vmsd = &vmstate_arm_cpu;
1043 #endif
1044 cc->gdb_num_core_regs = 26;
1045 cc->gdb_core_xml_file = "arm-core.xml";
1048 static void cpu_register(const ARMCPUInfo *info)
1050 TypeInfo type_info = {
1051 .parent = TYPE_ARM_CPU,
1052 .instance_size = sizeof(ARMCPU),
1053 .instance_init = info->initfn,
1054 .class_size = sizeof(ARMCPUClass),
1055 .class_init = info->class_init,
1058 type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
1059 type_register(&type_info);
1060 g_free((void *)type_info.name);
1063 static const TypeInfo arm_cpu_type_info = {
1064 .name = TYPE_ARM_CPU,
1065 .parent = TYPE_CPU,
1066 .instance_size = sizeof(ARMCPU),
1067 .instance_init = arm_cpu_initfn,
1068 .instance_post_init = arm_cpu_post_init,
1069 .instance_finalize = arm_cpu_finalizefn,
1070 .abstract = true,
1071 .class_size = sizeof(ARMCPUClass),
1072 .class_init = arm_cpu_class_init,
1075 static void arm_cpu_register_types(void)
1077 const ARMCPUInfo *info = arm_cpus;
1079 type_register_static(&arm_cpu_type_info);
1081 while (info->name) {
1082 cpu_register(info);
1083 info++;
1087 type_init(arm_cpu_register_types)