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1
/*
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 * QEMU ARM CPU
3
 *
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 * Copyright (c) 2012 SUSE LINUX Products GmbH
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, see
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 * <http://www.gnu.org/licenses/gpl-2.0.html>
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 */
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#include "cpu.h"
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#include "qemu-common.h"
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#if !defined(CONFIG_USER_ONLY)
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#include "hw/loader.h"
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#endif
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#include "hw/arm/arm.h"
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#include "sysemu/sysemu.h"
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#include "sysemu/kvm.h"
29

    
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static void arm_cpu_set_pc(CPUState *cs, vaddr value)
31
{
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    ARMCPU *cpu = ARM_CPU(cs);
33

    
34
    cpu->env.regs[15] = value;
35
}
36

    
37
static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque)
38
{
39
    /* Reset a single ARMCPRegInfo register */
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    ARMCPRegInfo *ri = value;
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    ARMCPU *cpu = opaque;
42

    
43
    if (ri->type & ARM_CP_SPECIAL) {
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        return;
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    }
46

    
47
    if (ri->resetfn) {
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        ri->resetfn(&cpu->env, ri);
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        return;
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    }
51

    
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    /* A zero offset is never possible as it would be regs[0]
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     * so we use it to indicate that reset is being handled elsewhere.
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     * This is basically only used for fields in non-core coprocessors
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     * (like the pxa2xx ones).
56
     */
57
    if (!ri->fieldoffset) {
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        return;
59
    }
60

    
61
    if (ri->type & ARM_CP_64BIT) {
62
        CPREG_FIELD64(&cpu->env, ri) = ri->resetvalue;
63
    } else {
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        CPREG_FIELD32(&cpu->env, ri) = ri->resetvalue;
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    }
66
}
67

    
68
/* CPUClass::reset() */
69
static void arm_cpu_reset(CPUState *s)
70
{
71
    ARMCPU *cpu = ARM_CPU(s);
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    ARMCPUClass *acc = ARM_CPU_GET_CLASS(cpu);
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    CPUARMState *env = &cpu->env;
74

    
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    acc->parent_reset(s);
76

    
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    memset(env, 0, offsetof(CPUARMState, breakpoints));
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    g_hash_table_foreach(cpu->cp_regs, cp_reg_reset, cpu);
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    env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid;
80
    env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0;
81
    env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1;
82

    
83
    if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
84
        env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
85
    }
86

    
87
#if defined(CONFIG_USER_ONLY)
88
    env->uncached_cpsr = ARM_CPU_MODE_USR;
89
    /* For user mode we must enable access to coprocessors */
90
    env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30;
91
    if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
92
        env->cp15.c15_cpar = 3;
93
    } else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
94
        env->cp15.c15_cpar = 1;
95
    }
96
#else
97
    /* SVC mode with interrupts disabled.  */
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    env->uncached_cpsr = ARM_CPU_MODE_SVC | CPSR_A | CPSR_F | CPSR_I;
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    /* On ARMv7-M the CPSR_I is the value of the PRIMASK register, and is
100
       clear at reset.  Initial SP and PC are loaded from ROM.  */
101
    if (IS_M(env)) {
102
        uint32_t pc;
103
        uint8_t *rom;
104
        env->uncached_cpsr &= ~CPSR_I;
105
        rom = rom_ptr(0);
106
        if (rom) {
107
            /* We should really use ldl_phys here, in case the guest
108
               modified flash and reset itself.  However images
109
               loaded via -kernel have not been copied yet, so load the
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               values directly from there.  */
111
            env->regs[13] = ldl_p(rom) & 0xFFFFFFFC;
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            pc = ldl_p(rom + 4);
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            env->thumb = pc & 1;
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            env->regs[15] = pc & ~1;
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        }
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    }
117
    env->vfp.xregs[ARM_VFP_FPEXC] = 0;
118
#endif
119
    set_flush_to_zero(1, &env->vfp.standard_fp_status);
120
    set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status);
121
    set_default_nan_mode(1, &env->vfp.standard_fp_status);
122
    set_float_detect_tininess(float_tininess_before_rounding,
123
                              &env->vfp.fp_status);
124
    set_float_detect_tininess(float_tininess_before_rounding,
125
                              &env->vfp.standard_fp_status);
126
    tlb_flush(env, 1);
127
    /* Reset is a state change for some CPUARMState fields which we
128
     * bake assumptions about into translated code, so we need to
129
     * tb_flush().
130
     */
131
    tb_flush(env);
132
}
133

    
134
#ifndef CONFIG_USER_ONLY
135
static void arm_cpu_set_irq(void *opaque, int irq, int level)
136
{
137
    ARMCPU *cpu = opaque;
138
    CPUState *cs = CPU(cpu);
139

    
140
    switch (irq) {
141
    case ARM_CPU_IRQ:
142
        if (level) {
143
            cpu_interrupt(cs, CPU_INTERRUPT_HARD);
144
        } else {
145
            cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
146
        }
147
        break;
148
    case ARM_CPU_FIQ:
149
        if (level) {
150
            cpu_interrupt(cs, CPU_INTERRUPT_FIQ);
151
        } else {
152
            cpu_reset_interrupt(cs, CPU_INTERRUPT_FIQ);
153
        }
154
        break;
155
    default:
156
        hw_error("arm_cpu_set_irq: Bad interrupt line %d\n", irq);
157
    }
158
}
159

    
160
static void arm_cpu_kvm_set_irq(void *opaque, int irq, int level)
161
{
162
#ifdef CONFIG_KVM
163
    ARMCPU *cpu = opaque;
164
    CPUState *cs = CPU(cpu);
165
    int kvm_irq = KVM_ARM_IRQ_TYPE_CPU << KVM_ARM_IRQ_TYPE_SHIFT;
166

    
167
    switch (irq) {
168
    case ARM_CPU_IRQ:
169
        kvm_irq |= KVM_ARM_IRQ_CPU_IRQ;
170
        break;
171
    case ARM_CPU_FIQ:
172
        kvm_irq |= KVM_ARM_IRQ_CPU_FIQ;
173
        break;
174
    default:
175
        hw_error("arm_cpu_kvm_set_irq: Bad interrupt line %d\n", irq);
176
    }
177
    kvm_irq |= cs->cpu_index << KVM_ARM_IRQ_VCPU_SHIFT;
178
    kvm_set_irq(kvm_state, kvm_irq, level ? 1 : 0);
179
#endif
180
}
181
#endif
182

    
183
static inline void set_feature(CPUARMState *env, int feature)
184
{
185
    env->features |= 1ULL << feature;
186
}
187

    
188
static void arm_cpu_initfn(Object *obj)
189
{
190
    CPUState *cs = CPU(obj);
191
    ARMCPU *cpu = ARM_CPU(obj);
192
    static bool inited;
193

    
194
    cs->env_ptr = &cpu->env;
195
    cpu_exec_init(&cpu->env);
196
    cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal,
197
                                         g_free, g_free);
198

    
199
#ifndef CONFIG_USER_ONLY
200
    /* Our inbound IRQ and FIQ lines */
201
    if (kvm_enabled()) {
202
        qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 2);
203
    } else {
204
        qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 2);
205
    }
206

    
207
    cpu->gt_timer[GTIMER_PHYS] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
208
                                                arm_gt_ptimer_cb, cpu);
209
    cpu->gt_timer[GTIMER_VIRT] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
210
                                                arm_gt_vtimer_cb, cpu);
211
    qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs,
212
                       ARRAY_SIZE(cpu->gt_timer_outputs));
213
#endif
214

    
215
    if (tcg_enabled() && !inited) {
216
        inited = true;
217
        arm_translate_init();
218
    }
219
}
220

    
221
static void arm_cpu_finalizefn(Object *obj)
222
{
223
    ARMCPU *cpu = ARM_CPU(obj);
224
    g_hash_table_destroy(cpu->cp_regs);
225
}
226

    
227
static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
228
{
229
    CPUState *cs = CPU(dev);
230
    ARMCPU *cpu = ARM_CPU(dev);
231
    ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev);
232
    CPUARMState *env = &cpu->env;
233

    
234
    /* Some features automatically imply others: */
235
    if (arm_feature(env, ARM_FEATURE_V8)) {
236
        set_feature(env, ARM_FEATURE_V7);
237
        set_feature(env, ARM_FEATURE_ARM_DIV);
238
        set_feature(env, ARM_FEATURE_LPAE);
239
    }
240
    if (arm_feature(env, ARM_FEATURE_V7)) {
241
        set_feature(env, ARM_FEATURE_VAPA);
242
        set_feature(env, ARM_FEATURE_THUMB2);
243
        set_feature(env, ARM_FEATURE_MPIDR);
244
        if (!arm_feature(env, ARM_FEATURE_M)) {
245
            set_feature(env, ARM_FEATURE_V6K);
246
        } else {
247
            set_feature(env, ARM_FEATURE_V6);
248
        }
249
    }
250
    if (arm_feature(env, ARM_FEATURE_V6K)) {
251
        set_feature(env, ARM_FEATURE_V6);
252
        set_feature(env, ARM_FEATURE_MVFR);
253
    }
254
    if (arm_feature(env, ARM_FEATURE_V6)) {
255
        set_feature(env, ARM_FEATURE_V5);
256
        if (!arm_feature(env, ARM_FEATURE_M)) {
257
            set_feature(env, ARM_FEATURE_AUXCR);
258
        }
259
    }
260
    if (arm_feature(env, ARM_FEATURE_V5)) {
261
        set_feature(env, ARM_FEATURE_V4T);
262
    }
263
    if (arm_feature(env, ARM_FEATURE_M)) {
264
        set_feature(env, ARM_FEATURE_THUMB_DIV);
265
    }
266
    if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {
267
        set_feature(env, ARM_FEATURE_THUMB_DIV);
268
    }
269
    if (arm_feature(env, ARM_FEATURE_VFP4)) {
270
        set_feature(env, ARM_FEATURE_VFP3);
271
    }
272
    if (arm_feature(env, ARM_FEATURE_VFP3)) {
273
        set_feature(env, ARM_FEATURE_VFP);
274
    }
275
    if (arm_feature(env, ARM_FEATURE_LPAE)) {
276
        set_feature(env, ARM_FEATURE_V7MP);
277
        set_feature(env, ARM_FEATURE_PXN);
278
    }
279

    
280
    register_cp_regs_for_features(cpu);
281
    arm_cpu_register_gdb_regs_for_features(cpu);
282

    
283
    init_cpreg_list(cpu);
284

    
285
    cpu_reset(cs);
286
    qemu_init_vcpu(cs);
287

    
288
    acc->parent_realize(dev, errp);
289
}
290

    
291
static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
292
{
293
    ObjectClass *oc;
294
    char *typename;
295

    
296
    if (!cpu_model) {
297
        return NULL;
298
    }
299

    
300
    typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpu_model);
301
    oc = object_class_by_name(typename);
302
    g_free(typename);
303
    if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU) ||
304
        object_class_is_abstract(oc)) {
305
        return NULL;
306
    }
307
    return oc;
308
}
309

    
310
/* CPU models. These are not needed for the AArch64 linux-user build. */
311
#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
312

    
313
static void arm926_initfn(Object *obj)
314
{
315
    ARMCPU *cpu = ARM_CPU(obj);
316
    set_feature(&cpu->env, ARM_FEATURE_V5);
317
    set_feature(&cpu->env, ARM_FEATURE_VFP);
318
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
319
    set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
320
    cpu->midr = 0x41069265;
321
    cpu->reset_fpsid = 0x41011090;
322
    cpu->ctr = 0x1dd20d2;
323
    cpu->reset_sctlr = 0x00090078;
324
}
325

    
326
static void arm946_initfn(Object *obj)
327
{
328
    ARMCPU *cpu = ARM_CPU(obj);
329
    set_feature(&cpu->env, ARM_FEATURE_V5);
330
    set_feature(&cpu->env, ARM_FEATURE_MPU);
331
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
332
    cpu->midr = 0x41059461;
333
    cpu->ctr = 0x0f004006;
334
    cpu->reset_sctlr = 0x00000078;
335
}
336

    
337
static void arm1026_initfn(Object *obj)
338
{
339
    ARMCPU *cpu = ARM_CPU(obj);
340
    set_feature(&cpu->env, ARM_FEATURE_V5);
341
    set_feature(&cpu->env, ARM_FEATURE_VFP);
342
    set_feature(&cpu->env, ARM_FEATURE_AUXCR);
343
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
344
    set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
345
    cpu->midr = 0x4106a262;
346
    cpu->reset_fpsid = 0x410110a0;
347
    cpu->ctr = 0x1dd20d2;
348
    cpu->reset_sctlr = 0x00090078;
349
    cpu->reset_auxcr = 1;
350
    {
351
        /* The 1026 had an IFAR at c6,c0,0,1 rather than the ARMv6 c6,c0,0,2 */
352
        ARMCPRegInfo ifar = {
353
            .name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 1,
354
            .access = PL1_RW,
355
            .fieldoffset = offsetof(CPUARMState, cp15.c6_insn),
356
            .resetvalue = 0
357
        };
358
        define_one_arm_cp_reg(cpu, &ifar);
359
    }
360
}
361

    
362
static void arm1136_r2_initfn(Object *obj)
363
{
364
    ARMCPU *cpu = ARM_CPU(obj);
365
    /* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an
366
     * older core than plain "arm1136". In particular this does not
367
     * have the v6K features.
368
     * These ID register values are correct for 1136 but may be wrong
369
     * for 1136_r2 (in particular r0p2 does not actually implement most
370
     * of the ID registers).
371
     */
372
    set_feature(&cpu->env, ARM_FEATURE_V6);
373
    set_feature(&cpu->env, ARM_FEATURE_VFP);
374
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
375
    set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
376
    set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
377
    cpu->midr = 0x4107b362;
378
    cpu->reset_fpsid = 0x410120b4;
379
    cpu->mvfr0 = 0x11111111;
380
    cpu->mvfr1 = 0x00000000;
381
    cpu->ctr = 0x1dd20d2;
382
    cpu->reset_sctlr = 0x00050078;
383
    cpu->id_pfr0 = 0x111;
384
    cpu->id_pfr1 = 0x1;
385
    cpu->id_dfr0 = 0x2;
386
    cpu->id_afr0 = 0x3;
387
    cpu->id_mmfr0 = 0x01130003;
388
    cpu->id_mmfr1 = 0x10030302;
389
    cpu->id_mmfr2 = 0x01222110;
390
    cpu->id_isar0 = 0x00140011;
391
    cpu->id_isar1 = 0x12002111;
392
    cpu->id_isar2 = 0x11231111;
393
    cpu->id_isar3 = 0x01102131;
394
    cpu->id_isar4 = 0x141;
395
    cpu->reset_auxcr = 7;
396
}
397

    
398
static void arm1136_initfn(Object *obj)
399
{
400
    ARMCPU *cpu = ARM_CPU(obj);
401
    set_feature(&cpu->env, ARM_FEATURE_V6K);
402
    set_feature(&cpu->env, ARM_FEATURE_V6);
403
    set_feature(&cpu->env, ARM_FEATURE_VFP);
404
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
405
    set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
406
    set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
407
    cpu->midr = 0x4117b363;
408
    cpu->reset_fpsid = 0x410120b4;
409
    cpu->mvfr0 = 0x11111111;
410
    cpu->mvfr1 = 0x00000000;
411
    cpu->ctr = 0x1dd20d2;
412
    cpu->reset_sctlr = 0x00050078;
413
    cpu->id_pfr0 = 0x111;
414
    cpu->id_pfr1 = 0x1;
415
    cpu->id_dfr0 = 0x2;
416
    cpu->id_afr0 = 0x3;
417
    cpu->id_mmfr0 = 0x01130003;
418
    cpu->id_mmfr1 = 0x10030302;
419
    cpu->id_mmfr2 = 0x01222110;
420
    cpu->id_isar0 = 0x00140011;
421
    cpu->id_isar1 = 0x12002111;
422
    cpu->id_isar2 = 0x11231111;
423
    cpu->id_isar3 = 0x01102131;
424
    cpu->id_isar4 = 0x141;
425
    cpu->reset_auxcr = 7;
426
}
427

    
428
static void arm1176_initfn(Object *obj)
429
{
430
    ARMCPU *cpu = ARM_CPU(obj);
431
    set_feature(&cpu->env, ARM_FEATURE_V6K);
432
    set_feature(&cpu->env, ARM_FEATURE_VFP);
433
    set_feature(&cpu->env, ARM_FEATURE_VAPA);
434
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
435
    set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
436
    set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
437
    cpu->midr = 0x410fb767;
438
    cpu->reset_fpsid = 0x410120b5;
439
    cpu->mvfr0 = 0x11111111;
440
    cpu->mvfr1 = 0x00000000;
441
    cpu->ctr = 0x1dd20d2;
442
    cpu->reset_sctlr = 0x00050078;
443
    cpu->id_pfr0 = 0x111;
444
    cpu->id_pfr1 = 0x11;
445
    cpu->id_dfr0 = 0x33;
446
    cpu->id_afr0 = 0;
447
    cpu->id_mmfr0 = 0x01130003;
448
    cpu->id_mmfr1 = 0x10030302;
449
    cpu->id_mmfr2 = 0x01222100;
450
    cpu->id_isar0 = 0x0140011;
451
    cpu->id_isar1 = 0x12002111;
452
    cpu->id_isar2 = 0x11231121;
453
    cpu->id_isar3 = 0x01102131;
454
    cpu->id_isar4 = 0x01141;
455
    cpu->reset_auxcr = 7;
456
}
457

    
458
static void arm11mpcore_initfn(Object *obj)
459
{
460
    ARMCPU *cpu = ARM_CPU(obj);
461
    set_feature(&cpu->env, ARM_FEATURE_V6K);
462
    set_feature(&cpu->env, ARM_FEATURE_VFP);
463
    set_feature(&cpu->env, ARM_FEATURE_VAPA);
464
    set_feature(&cpu->env, ARM_FEATURE_MPIDR);
465
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
466
    cpu->midr = 0x410fb022;
467
    cpu->reset_fpsid = 0x410120b4;
468
    cpu->mvfr0 = 0x11111111;
469
    cpu->mvfr1 = 0x00000000;
470
    cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */
471
    cpu->id_pfr0 = 0x111;
472
    cpu->id_pfr1 = 0x1;
473
    cpu->id_dfr0 = 0;
474
    cpu->id_afr0 = 0x2;
475
    cpu->id_mmfr0 = 0x01100103;
476
    cpu->id_mmfr1 = 0x10020302;
477
    cpu->id_mmfr2 = 0x01222000;
478
    cpu->id_isar0 = 0x00100011;
479
    cpu->id_isar1 = 0x12002111;
480
    cpu->id_isar2 = 0x11221011;
481
    cpu->id_isar3 = 0x01102131;
482
    cpu->id_isar4 = 0x141;
483
    cpu->reset_auxcr = 1;
484
}
485

    
486
static void cortex_m3_initfn(Object *obj)
487
{
488
    ARMCPU *cpu = ARM_CPU(obj);
489
    set_feature(&cpu->env, ARM_FEATURE_V7);
490
    set_feature(&cpu->env, ARM_FEATURE_M);
491
    cpu->midr = 0x410fc231;
492
}
493

    
494
static void arm_v7m_class_init(ObjectClass *oc, void *data)
495
{
496
#ifndef CONFIG_USER_ONLY
497
    CPUClass *cc = CPU_CLASS(oc);
498

    
499
    cc->do_interrupt = arm_v7m_cpu_do_interrupt;
500
#endif
501
}
502

    
503
static const ARMCPRegInfo cortexa8_cp_reginfo[] = {
504
    { .name = "L2LOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 0,
505
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
506
    { .name = "L2AUXCR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
507
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
508
    REGINFO_SENTINEL
509
};
510

    
511
static void cortex_a8_initfn(Object *obj)
512
{
513
    ARMCPU *cpu = ARM_CPU(obj);
514
    set_feature(&cpu->env, ARM_FEATURE_V7);
515
    set_feature(&cpu->env, ARM_FEATURE_VFP3);
516
    set_feature(&cpu->env, ARM_FEATURE_NEON);
517
    set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
518
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
519
    cpu->midr = 0x410fc080;
520
    cpu->reset_fpsid = 0x410330c0;
521
    cpu->mvfr0 = 0x11110222;
522
    cpu->mvfr1 = 0x00011100;
523
    cpu->ctr = 0x82048004;
524
    cpu->reset_sctlr = 0x00c50078;
525
    cpu->id_pfr0 = 0x1031;
526
    cpu->id_pfr1 = 0x11;
527
    cpu->id_dfr0 = 0x400;
528
    cpu->id_afr0 = 0;
529
    cpu->id_mmfr0 = 0x31100003;
530
    cpu->id_mmfr1 = 0x20000000;
531
    cpu->id_mmfr2 = 0x01202000;
532
    cpu->id_mmfr3 = 0x11;
533
    cpu->id_isar0 = 0x00101111;
534
    cpu->id_isar1 = 0x12112111;
535
    cpu->id_isar2 = 0x21232031;
536
    cpu->id_isar3 = 0x11112131;
537
    cpu->id_isar4 = 0x00111142;
538
    cpu->clidr = (1 << 27) | (2 << 24) | 3;
539
    cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */
540
    cpu->ccsidr[1] = 0x2007e01a; /* 16k L1 icache. */
541
    cpu->ccsidr[2] = 0xf0000000; /* No L2 icache. */
542
    cpu->reset_auxcr = 2;
543
    define_arm_cp_regs(cpu, cortexa8_cp_reginfo);
544
}
545

    
546
static const ARMCPRegInfo cortexa9_cp_reginfo[] = {
547
    /* power_control should be set to maximum latency. Again,
548
     * default to 0 and set by private hook
549
     */
550
    { .name = "A9_PWRCTL", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 0,
551
      .access = PL1_RW, .resetvalue = 0,
552
      .fieldoffset = offsetof(CPUARMState, cp15.c15_power_control) },
553
    { .name = "A9_DIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 1,
554
      .access = PL1_RW, .resetvalue = 0,
555
      .fieldoffset = offsetof(CPUARMState, cp15.c15_diagnostic) },
556
    { .name = "A9_PWRDIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 2,
557
      .access = PL1_RW, .resetvalue = 0,
558
      .fieldoffset = offsetof(CPUARMState, cp15.c15_power_diagnostic) },
559
    { .name = "NEONBUSY", .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0,
560
      .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
561
    /* TLB lockdown control */
562
    { .name = "TLB_LOCKR", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 2,
563
      .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
564
    { .name = "TLB_LOCKW", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 4,
565
      .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
566
    { .name = "TLB_VA", .cp = 15, .crn = 15, .crm = 5, .opc1 = 5, .opc2 = 2,
567
      .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
568
    { .name = "TLB_PA", .cp = 15, .crn = 15, .crm = 6, .opc1 = 5, .opc2 = 2,
569
      .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
570
    { .name = "TLB_ATTR", .cp = 15, .crn = 15, .crm = 7, .opc1 = 5, .opc2 = 2,
571
      .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
572
    REGINFO_SENTINEL
573
};
574

    
575
static void cortex_a9_initfn(Object *obj)
576
{
577
    ARMCPU *cpu = ARM_CPU(obj);
578
    set_feature(&cpu->env, ARM_FEATURE_V7);
579
    set_feature(&cpu->env, ARM_FEATURE_VFP3);
580
    set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
581
    set_feature(&cpu->env, ARM_FEATURE_NEON);
582
    set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
583
    /* Note that A9 supports the MP extensions even for
584
     * A9UP and single-core A9MP (which are both different
585
     * and valid configurations; we don't model A9UP).
586
     */
587
    set_feature(&cpu->env, ARM_FEATURE_V7MP);
588
    cpu->midr = 0x410fc090;
589
    cpu->reset_fpsid = 0x41033090;
590
    cpu->mvfr0 = 0x11110222;
591
    cpu->mvfr1 = 0x01111111;
592
    cpu->ctr = 0x80038003;
593
    cpu->reset_sctlr = 0x00c50078;
594
    cpu->id_pfr0 = 0x1031;
595
    cpu->id_pfr1 = 0x11;
596
    cpu->id_dfr0 = 0x000;
597
    cpu->id_afr0 = 0;
598
    cpu->id_mmfr0 = 0x00100103;
599
    cpu->id_mmfr1 = 0x20000000;
600
    cpu->id_mmfr2 = 0x01230000;
601
    cpu->id_mmfr3 = 0x00002111;
602
    cpu->id_isar0 = 0x00101111;
603
    cpu->id_isar1 = 0x13112111;
604
    cpu->id_isar2 = 0x21232041;
605
    cpu->id_isar3 = 0x11112131;
606
    cpu->id_isar4 = 0x00111142;
607
    cpu->clidr = (1 << 27) | (1 << 24) | 3;
608
    cpu->ccsidr[0] = 0xe00fe015; /* 16k L1 dcache. */
609
    cpu->ccsidr[1] = 0x200fe015; /* 16k L1 icache. */
610
    {
611
        ARMCPRegInfo cbar = {
612
            .name = "CBAR", .cp = 15, .crn = 15,  .crm = 0, .opc1 = 4,
613
            .opc2 = 0, .access = PL1_R|PL3_W, .resetvalue = cpu->reset_cbar,
614
            .fieldoffset = offsetof(CPUARMState, cp15.c15_config_base_address)
615
        };
616
        define_one_arm_cp_reg(cpu, &cbar);
617
        define_arm_cp_regs(cpu, cortexa9_cp_reginfo);
618
    }
619
}
620

    
621
#ifndef CONFIG_USER_ONLY
622
static int a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri,
623
                           uint64_t *value)
624
{
625
    /* Linux wants the number of processors from here.
626
     * Might as well set the interrupt-controller bit too.
627
     */
628
    *value = ((smp_cpus - 1) << 24) | (1 << 23);
629
    return 0;
630
}
631
#endif
632

    
633
static const ARMCPRegInfo cortexa15_cp_reginfo[] = {
634
#ifndef CONFIG_USER_ONLY
635
    { .name = "L2CTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
636
      .access = PL1_RW, .resetvalue = 0, .readfn = a15_l2ctlr_read,
637
      .writefn = arm_cp_write_ignore, },
638
#endif
639
    { .name = "L2ECTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 3,
640
      .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
641
    REGINFO_SENTINEL
642
};
643

    
644
static void cortex_a15_initfn(Object *obj)
645
{
646
    ARMCPU *cpu = ARM_CPU(obj);
647
    set_feature(&cpu->env, ARM_FEATURE_V7);
648
    set_feature(&cpu->env, ARM_FEATURE_VFP4);
649
    set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
650
    set_feature(&cpu->env, ARM_FEATURE_NEON);
651
    set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
652
    set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
653
    set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
654
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
655
    set_feature(&cpu->env, ARM_FEATURE_LPAE);
656
    cpu->midr = 0x412fc0f1;
657
    cpu->reset_fpsid = 0x410430f0;
658
    cpu->mvfr0 = 0x10110222;
659
    cpu->mvfr1 = 0x11111111;
660
    cpu->ctr = 0x8444c004;
661
    cpu->reset_sctlr = 0x00c50078;
662
    cpu->id_pfr0 = 0x00001131;
663
    cpu->id_pfr1 = 0x00011011;
664
    cpu->id_dfr0 = 0x02010555;
665
    cpu->id_afr0 = 0x00000000;
666
    cpu->id_mmfr0 = 0x10201105;
667
    cpu->id_mmfr1 = 0x20000000;
668
    cpu->id_mmfr2 = 0x01240000;
669
    cpu->id_mmfr3 = 0x02102211;
670
    cpu->id_isar0 = 0x02101110;
671
    cpu->id_isar1 = 0x13112111;
672
    cpu->id_isar2 = 0x21232041;
673
    cpu->id_isar3 = 0x11112131;
674
    cpu->id_isar4 = 0x10011142;
675
    cpu->clidr = 0x0a200023;
676
    cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */
677
    cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */
678
    cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */
679
    define_arm_cp_regs(cpu, cortexa15_cp_reginfo);
680
}
681

    
682
static void ti925t_initfn(Object *obj)
683
{
684
    ARMCPU *cpu = ARM_CPU(obj);
685
    set_feature(&cpu->env, ARM_FEATURE_V4T);
686
    set_feature(&cpu->env, ARM_FEATURE_OMAPCP);
687
    cpu->midr = ARM_CPUID_TI925T;
688
    cpu->ctr = 0x5109149;
689
    cpu->reset_sctlr = 0x00000070;
690
}
691

    
692
static void sa1100_initfn(Object *obj)
693
{
694
    ARMCPU *cpu = ARM_CPU(obj);
695
    set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
696
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
697
    cpu->midr = 0x4401A11B;
698
    cpu->reset_sctlr = 0x00000070;
699
}
700

    
701
static void sa1110_initfn(Object *obj)
702
{
703
    ARMCPU *cpu = ARM_CPU(obj);
704
    set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
705
    set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
706
    cpu->midr = 0x6901B119;
707
    cpu->reset_sctlr = 0x00000070;
708
}
709

    
710
static void pxa250_initfn(Object *obj)
711
{
712
    ARMCPU *cpu = ARM_CPU(obj);
713
    set_feature(&cpu->env, ARM_FEATURE_V5);
714
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
715
    cpu->midr = 0x69052100;
716
    cpu->ctr = 0xd172172;
717
    cpu->reset_sctlr = 0x00000078;
718
}
719

    
720
static void pxa255_initfn(Object *obj)
721
{
722
    ARMCPU *cpu = ARM_CPU(obj);
723
    set_feature(&cpu->env, ARM_FEATURE_V5);
724
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
725
    cpu->midr = 0x69052d00;
726
    cpu->ctr = 0xd172172;
727
    cpu->reset_sctlr = 0x00000078;
728
}
729

    
730
static void pxa260_initfn(Object *obj)
731
{
732
    ARMCPU *cpu = ARM_CPU(obj);
733
    set_feature(&cpu->env, ARM_FEATURE_V5);
734
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
735
    cpu->midr = 0x69052903;
736
    cpu->ctr = 0xd172172;
737
    cpu->reset_sctlr = 0x00000078;
738
}
739

    
740
static void pxa261_initfn(Object *obj)
741
{
742
    ARMCPU *cpu = ARM_CPU(obj);
743
    set_feature(&cpu->env, ARM_FEATURE_V5);
744
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
745
    cpu->midr = 0x69052d05;
746
    cpu->ctr = 0xd172172;
747
    cpu->reset_sctlr = 0x00000078;
748
}
749

    
750
static void pxa262_initfn(Object *obj)
751
{
752
    ARMCPU *cpu = ARM_CPU(obj);
753
    set_feature(&cpu->env, ARM_FEATURE_V5);
754
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
755
    cpu->midr = 0x69052d06;
756
    cpu->ctr = 0xd172172;
757
    cpu->reset_sctlr = 0x00000078;
758
}
759

    
760
static void pxa270a0_initfn(Object *obj)
761
{
762
    ARMCPU *cpu = ARM_CPU(obj);
763
    set_feature(&cpu->env, ARM_FEATURE_V5);
764
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
765
    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
766
    cpu->midr = 0x69054110;
767
    cpu->ctr = 0xd172172;
768
    cpu->reset_sctlr = 0x00000078;
769
}
770

    
771
static void pxa270a1_initfn(Object *obj)
772
{
773
    ARMCPU *cpu = ARM_CPU(obj);
774
    set_feature(&cpu->env, ARM_FEATURE_V5);
775
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
776
    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
777
    cpu->midr = 0x69054111;
778
    cpu->ctr = 0xd172172;
779
    cpu->reset_sctlr = 0x00000078;
780
}
781

    
782
static void pxa270b0_initfn(Object *obj)
783
{
784
    ARMCPU *cpu = ARM_CPU(obj);
785
    set_feature(&cpu->env, ARM_FEATURE_V5);
786
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
787
    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
788
    cpu->midr = 0x69054112;
789
    cpu->ctr = 0xd172172;
790
    cpu->reset_sctlr = 0x00000078;
791
}
792

    
793
static void pxa270b1_initfn(Object *obj)
794
{
795
    ARMCPU *cpu = ARM_CPU(obj);
796
    set_feature(&cpu->env, ARM_FEATURE_V5);
797
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
798
    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
799
    cpu->midr = 0x69054113;
800
    cpu->ctr = 0xd172172;
801
    cpu->reset_sctlr = 0x00000078;
802
}
803

    
804
static void pxa270c0_initfn(Object *obj)
805
{
806
    ARMCPU *cpu = ARM_CPU(obj);
807
    set_feature(&cpu->env, ARM_FEATURE_V5);
808
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
809
    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
810
    cpu->midr = 0x69054114;
811
    cpu->ctr = 0xd172172;
812
    cpu->reset_sctlr = 0x00000078;
813
}
814

    
815
static void pxa270c5_initfn(Object *obj)
816
{
817
    ARMCPU *cpu = ARM_CPU(obj);
818
    set_feature(&cpu->env, ARM_FEATURE_V5);
819
    set_feature(&cpu->env, ARM_FEATURE_XSCALE);
820
    set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
821
    cpu->midr = 0x69054117;
822
    cpu->ctr = 0xd172172;
823
    cpu->reset_sctlr = 0x00000078;
824
}
825

    
826
#ifdef CONFIG_USER_ONLY
827
static void arm_any_initfn(Object *obj)
828
{
829
    ARMCPU *cpu = ARM_CPU(obj);
830
    set_feature(&cpu->env, ARM_FEATURE_V8);
831
    set_feature(&cpu->env, ARM_FEATURE_VFP4);
832
    set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
833
    set_feature(&cpu->env, ARM_FEATURE_NEON);
834
    set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
835
    set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
836
    set_feature(&cpu->env, ARM_FEATURE_V7MP);
837
    cpu->midr = 0xffffffff;
838
}
839
#endif
840

    
841
#endif /* !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) */
842

    
843
typedef struct ARMCPUInfo {
844
    const char *name;
845
    void (*initfn)(Object *obj);
846
    void (*class_init)(ObjectClass *oc, void *data);
847
} ARMCPUInfo;
848

    
849
static const ARMCPUInfo arm_cpus[] = {
850
#if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64)
851
    { .name = "arm926",      .initfn = arm926_initfn },
852
    { .name = "arm946",      .initfn = arm946_initfn },
853
    { .name = "arm1026",     .initfn = arm1026_initfn },
854
    /* What QEMU calls "arm1136-r2" is actually the 1136 r0p2, i.e. an
855
     * older core than plain "arm1136". In particular this does not
856
     * have the v6K features.
857
     */
858
    { .name = "arm1136-r2",  .initfn = arm1136_r2_initfn },
859
    { .name = "arm1136",     .initfn = arm1136_initfn },
860
    { .name = "arm1176",     .initfn = arm1176_initfn },
861
    { .name = "arm11mpcore", .initfn = arm11mpcore_initfn },
862
    { .name = "cortex-m3",   .initfn = cortex_m3_initfn,
863
                             .class_init = arm_v7m_class_init },
864
    { .name = "cortex-a8",   .initfn = cortex_a8_initfn },
865
    { .name = "cortex-a9",   .initfn = cortex_a9_initfn },
866
    { .name = "cortex-a15",  .initfn = cortex_a15_initfn },
867
    { .name = "ti925t",      .initfn = ti925t_initfn },
868
    { .name = "sa1100",      .initfn = sa1100_initfn },
869
    { .name = "sa1110",      .initfn = sa1110_initfn },
870
    { .name = "pxa250",      .initfn = pxa250_initfn },
871
    { .name = "pxa255",      .initfn = pxa255_initfn },
872
    { .name = "pxa260",      .initfn = pxa260_initfn },
873
    { .name = "pxa261",      .initfn = pxa261_initfn },
874
    { .name = "pxa262",      .initfn = pxa262_initfn },
875
    /* "pxa270" is an alias for "pxa270-a0" */
876
    { .name = "pxa270",      .initfn = pxa270a0_initfn },
877
    { .name = "pxa270-a0",   .initfn = pxa270a0_initfn },
878
    { .name = "pxa270-a1",   .initfn = pxa270a1_initfn },
879
    { .name = "pxa270-b0",   .initfn = pxa270b0_initfn },
880
    { .name = "pxa270-b1",   .initfn = pxa270b1_initfn },
881
    { .name = "pxa270-c0",   .initfn = pxa270c0_initfn },
882
    { .name = "pxa270-c5",   .initfn = pxa270c5_initfn },
883
#ifdef CONFIG_USER_ONLY
884
    { .name = "any",         .initfn = arm_any_initfn },
885
#endif
886
#endif
887
};
888

    
889
static void arm_cpu_class_init(ObjectClass *oc, void *data)
890
{
891
    ARMCPUClass *acc = ARM_CPU_CLASS(oc);
892
    CPUClass *cc = CPU_CLASS(acc);
893
    DeviceClass *dc = DEVICE_CLASS(oc);
894

    
895
    acc->parent_realize = dc->realize;
896
    dc->realize = arm_cpu_realizefn;
897

    
898
    acc->parent_reset = cc->reset;
899
    cc->reset = arm_cpu_reset;
900

    
901
    cc->class_by_name = arm_cpu_class_by_name;
902
    cc->do_interrupt = arm_cpu_do_interrupt;
903
    cc->dump_state = arm_cpu_dump_state;
904
    cc->set_pc = arm_cpu_set_pc;
905
    cc->gdb_read_register = arm_cpu_gdb_read_register;
906
    cc->gdb_write_register = arm_cpu_gdb_write_register;
907
#ifndef CONFIG_USER_ONLY
908
    cc->get_phys_page_debug = arm_cpu_get_phys_page_debug;
909
    cc->vmsd = &vmstate_arm_cpu;
910
#endif
911
    cc->gdb_num_core_regs = 26;
912
    cc->gdb_core_xml_file = "arm-core.xml";
913
}
914

    
915
static void cpu_register(const ARMCPUInfo *info)
916
{
917
    TypeInfo type_info = {
918
        .parent = TYPE_ARM_CPU,
919
        .instance_size = sizeof(ARMCPU),
920
        .instance_init = info->initfn,
921
        .class_size = sizeof(ARMCPUClass),
922
        .class_init = info->class_init,
923
    };
924

    
925
    type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
926
    type_register(&type_info);
927
    g_free((void *)type_info.name);
928
}
929

    
930
static const TypeInfo arm_cpu_type_info = {
931
    .name = TYPE_ARM_CPU,
932
    .parent = TYPE_CPU,
933
    .instance_size = sizeof(ARMCPU),
934
    .instance_init = arm_cpu_initfn,
935
    .instance_finalize = arm_cpu_finalizefn,
936
    .abstract = true,
937
    .class_size = sizeof(ARMCPUClass),
938
    .class_init = arm_cpu_class_init,
939
};
940

    
941
static void arm_cpu_register_types(void)
942
{
943
    int i;
944

    
945
    type_register_static(&arm_cpu_type_info);
946
    for (i = 0; i < ARRAY_SIZE(arm_cpus); i++) {
947
        cpu_register(&arm_cpus[i]);
948
    }
949
}
950

    
951
type_init(arm_cpu_register_types)