Statistics
| Branch: | Revision:

root / target-s390x / cpu.h @ 1ac5889f

History | View | Annotate | Download (32.5 kB)

1
/*
2
 * S/390 virtual CPU header
3
 *
4
 *  Copyright (c) 2009 Ulrich Hecht
5
 *
6
 * This library is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2 of the License, or (at your option) any later version.
10
 *
11
 * This library 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 GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18
 */
19
#ifndef CPU_S390X_H
20
#define CPU_S390X_H
21

    
22
#include "config.h"
23
#include "qemu-common.h"
24

    
25
#define TARGET_LONG_BITS 64
26

    
27
#define ELF_MACHINE        EM_S390
28

    
29
#define CPUArchState struct CPUS390XState
30

    
31
#include "exec/cpu-defs.h"
32
#define TARGET_PAGE_BITS 12
33

    
34
#define TARGET_PHYS_ADDR_SPACE_BITS 64
35
#define TARGET_VIRT_ADDR_SPACE_BITS 64
36

    
37
#include "exec/cpu-all.h"
38

    
39
#include "fpu/softfloat.h"
40

    
41
#define NB_MMU_MODES 3
42

    
43
#define MMU_MODE0_SUFFIX _primary
44
#define MMU_MODE1_SUFFIX _secondary
45
#define MMU_MODE2_SUFFIX _home
46

    
47
#define MMU_USER_IDX 1
48

    
49
#define MAX_EXT_QUEUE 16
50

    
51
typedef struct PSW {
52
    uint64_t mask;
53
    uint64_t addr;
54
} PSW;
55

    
56
typedef struct ExtQueue {
57
    uint32_t code;
58
    uint32_t param;
59
    uint32_t param64;
60
} ExtQueue;
61

    
62
typedef struct CPUS390XState {
63
    uint64_t regs[16];     /* GP registers */
64
    CPU_DoubleU fregs[16]; /* FP registers */
65
    uint32_t aregs[16];    /* access registers */
66

    
67
    uint32_t fpc;          /* floating-point control register */
68
    uint32_t cc_op;
69

    
70
    float_status fpu_status; /* passed to softfloat lib */
71

    
72
    /* The low part of a 128-bit return, or remainder of a divide.  */
73
    uint64_t retxl;
74

    
75
    PSW psw;
76

    
77
    uint64_t cc_src;
78
    uint64_t cc_dst;
79
    uint64_t cc_vr;
80

    
81
    uint64_t __excp_addr;
82
    uint64_t psa;
83

    
84
    uint32_t int_pgm_code;
85
    uint32_t int_pgm_ilen;
86

    
87
    uint32_t int_svc_code;
88
    uint32_t int_svc_ilen;
89

    
90
    uint64_t cregs[16]; /* control registers */
91

    
92
    ExtQueue ext_queue[MAX_EXT_QUEUE];
93
    int pending_int;
94

    
95
    int ext_index;
96

    
97
    CPU_COMMON
98

    
99
    /* reset does memset(0) up to here */
100

    
101
    int cpu_num;
102
    uint8_t *storage_keys;
103

    
104
    uint64_t tod_offset;
105
    uint64_t tod_basetime;
106
    QEMUTimer *tod_timer;
107

    
108
    QEMUTimer *cpu_timer;
109
} CPUS390XState;
110

    
111
#include "cpu-qom.h"
112

    
113
#if defined(CONFIG_USER_ONLY)
114
static inline void cpu_clone_regs(CPUS390XState *env, target_ulong newsp)
115
{
116
    if (newsp) {
117
        env->regs[15] = newsp;
118
    }
119
    env->regs[0] = 0;
120
}
121
#endif
122

    
123
/* Interrupt Codes */
124
/* Program Interrupts */
125
#define PGM_OPERATION                   0x0001
126
#define PGM_PRIVILEGED                  0x0002
127
#define PGM_EXECUTE                     0x0003
128
#define PGM_PROTECTION                  0x0004
129
#define PGM_ADDRESSING                  0x0005
130
#define PGM_SPECIFICATION               0x0006
131
#define PGM_DATA                        0x0007
132
#define PGM_FIXPT_OVERFLOW              0x0008
133
#define PGM_FIXPT_DIVIDE                0x0009
134
#define PGM_DEC_OVERFLOW                0x000a
135
#define PGM_DEC_DIVIDE                  0x000b
136
#define PGM_HFP_EXP_OVERFLOW            0x000c
137
#define PGM_HFP_EXP_UNDERFLOW           0x000d
138
#define PGM_HFP_SIGNIFICANCE            0x000e
139
#define PGM_HFP_DIVIDE                  0x000f
140
#define PGM_SEGMENT_TRANS               0x0010
141
#define PGM_PAGE_TRANS                  0x0011
142
#define PGM_TRANS_SPEC                  0x0012
143
#define PGM_SPECIAL_OP                  0x0013
144
#define PGM_OPERAND                     0x0015
145
#define PGM_TRACE_TABLE                 0x0016
146
#define PGM_SPACE_SWITCH                0x001c
147
#define PGM_HFP_SQRT                    0x001d
148
#define PGM_PC_TRANS_SPEC               0x001f
149
#define PGM_AFX_TRANS                   0x0020
150
#define PGM_ASX_TRANS                   0x0021
151
#define PGM_LX_TRANS                    0x0022
152
#define PGM_EX_TRANS                    0x0023
153
#define PGM_PRIM_AUTH                   0x0024
154
#define PGM_SEC_AUTH                    0x0025
155
#define PGM_ALET_SPEC                   0x0028
156
#define PGM_ALEN_SPEC                   0x0029
157
#define PGM_ALE_SEQ                     0x002a
158
#define PGM_ASTE_VALID                  0x002b
159
#define PGM_ASTE_SEQ                    0x002c
160
#define PGM_EXT_AUTH                    0x002d
161
#define PGM_STACK_FULL                  0x0030
162
#define PGM_STACK_EMPTY                 0x0031
163
#define PGM_STACK_SPEC                  0x0032
164
#define PGM_STACK_TYPE                  0x0033
165
#define PGM_STACK_OP                    0x0034
166
#define PGM_ASCE_TYPE                   0x0038
167
#define PGM_REG_FIRST_TRANS             0x0039
168
#define PGM_REG_SEC_TRANS               0x003a
169
#define PGM_REG_THIRD_TRANS             0x003b
170
#define PGM_MONITOR                     0x0040
171
#define PGM_PER                         0x0080
172
#define PGM_CRYPTO                      0x0119
173

    
174
/* External Interrupts */
175
#define EXT_INTERRUPT_KEY               0x0040
176
#define EXT_CLOCK_COMP                  0x1004
177
#define EXT_CPU_TIMER                   0x1005
178
#define EXT_MALFUNCTION                 0x1200
179
#define EXT_EMERGENCY                   0x1201
180
#define EXT_EXTERNAL_CALL               0x1202
181
#define EXT_ETR                         0x1406
182
#define EXT_SERVICE                     0x2401
183
#define EXT_VIRTIO                      0x2603
184

    
185
/* PSW defines */
186
#undef PSW_MASK_PER
187
#undef PSW_MASK_DAT
188
#undef PSW_MASK_IO
189
#undef PSW_MASK_EXT
190
#undef PSW_MASK_KEY
191
#undef PSW_SHIFT_KEY
192
#undef PSW_MASK_MCHECK
193
#undef PSW_MASK_WAIT
194
#undef PSW_MASK_PSTATE
195
#undef PSW_MASK_ASC
196
#undef PSW_MASK_CC
197
#undef PSW_MASK_PM
198
#undef PSW_MASK_64
199

    
200
#define PSW_MASK_PER            0x4000000000000000ULL
201
#define PSW_MASK_DAT            0x0400000000000000ULL
202
#define PSW_MASK_IO             0x0200000000000000ULL
203
#define PSW_MASK_EXT            0x0100000000000000ULL
204
#define PSW_MASK_KEY            0x00F0000000000000ULL
205
#define PSW_SHIFT_KEY           56
206
#define PSW_MASK_MCHECK         0x0004000000000000ULL
207
#define PSW_MASK_WAIT           0x0002000000000000ULL
208
#define PSW_MASK_PSTATE         0x0001000000000000ULL
209
#define PSW_MASK_ASC            0x0000C00000000000ULL
210
#define PSW_MASK_CC             0x0000300000000000ULL
211
#define PSW_MASK_PM             0x00000F0000000000ULL
212
#define PSW_MASK_64             0x0000000100000000ULL
213
#define PSW_MASK_32             0x0000000080000000ULL
214

    
215
#undef PSW_ASC_PRIMARY
216
#undef PSW_ASC_ACCREG
217
#undef PSW_ASC_SECONDARY
218
#undef PSW_ASC_HOME
219

    
220
#define PSW_ASC_PRIMARY         0x0000000000000000ULL
221
#define PSW_ASC_ACCREG          0x0000400000000000ULL
222
#define PSW_ASC_SECONDARY       0x0000800000000000ULL
223
#define PSW_ASC_HOME            0x0000C00000000000ULL
224

    
225
/* tb flags */
226

    
227
#define FLAG_MASK_PER           (PSW_MASK_PER    >> 32)
228
#define FLAG_MASK_DAT           (PSW_MASK_DAT    >> 32)
229
#define FLAG_MASK_IO            (PSW_MASK_IO     >> 32)
230
#define FLAG_MASK_EXT           (PSW_MASK_EXT    >> 32)
231
#define FLAG_MASK_KEY           (PSW_MASK_KEY    >> 32)
232
#define FLAG_MASK_MCHECK        (PSW_MASK_MCHECK >> 32)
233
#define FLAG_MASK_WAIT          (PSW_MASK_WAIT   >> 32)
234
#define FLAG_MASK_PSTATE        (PSW_MASK_PSTATE >> 32)
235
#define FLAG_MASK_ASC           (PSW_MASK_ASC    >> 32)
236
#define FLAG_MASK_CC            (PSW_MASK_CC     >> 32)
237
#define FLAG_MASK_PM            (PSW_MASK_PM     >> 32)
238
#define FLAG_MASK_64            (PSW_MASK_64     >> 32)
239
#define FLAG_MASK_32            0x00001000
240

    
241
static inline int cpu_mmu_index (CPUS390XState *env)
242
{
243
    if (env->psw.mask & PSW_MASK_PSTATE) {
244
        return 1;
245
    }
246

    
247
    return 0;
248
}
249

    
250
static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
251
                                        target_ulong *cs_base, int *flags)
252
{
253
    *pc = env->psw.addr;
254
    *cs_base = 0;
255
    *flags = ((env->psw.mask >> 32) & ~FLAG_MASK_CC) |
256
             ((env->psw.mask & PSW_MASK_32) ? FLAG_MASK_32 : 0);
257
}
258

    
259
/* While the PoO talks about ILC (a number between 1-3) what is actually
260
   stored in LowCore is shifted left one bit (an even between 2-6).  As
261
   this is the actual length of the insn and therefore more useful, that
262
   is what we want to pass around and manipulate.  To make sure that we
263
   have applied this distinction universally, rename the "ILC" to "ILEN".  */
264
static inline int get_ilen(uint8_t opc)
265
{
266
    switch (opc >> 6) {
267
    case 0:
268
        return 2;
269
    case 1:
270
    case 2:
271
        return 4;
272
    default:
273
        return 6;
274
    }
275
}
276

    
277
#ifndef CONFIG_USER_ONLY
278
/* In several cases of runtime exceptions, we havn't recorded the true
279
   instruction length.  Use these codes when raising exceptions in order
280
   to re-compute the length by examining the insn in memory.  */
281
#define ILEN_LATER       0x20
282
#define ILEN_LATER_INC   0x21
283
#endif
284

    
285
S390CPU *cpu_s390x_init(const char *cpu_model);
286
void s390x_translate_init(void);
287
int cpu_s390x_exec(CPUS390XState *s);
288
void cpu_s390x_close(CPUS390XState *s);
289
void do_interrupt (CPUS390XState *env);
290

    
291
/* you can call this signal handler from your SIGBUS and SIGSEGV
292
   signal handlers to inform the virtual CPU of exceptions. non zero
293
   is returned if the signal was handled by the virtual CPU.  */
294
int cpu_s390x_signal_handler(int host_signum, void *pinfo,
295
                           void *puc);
296
int cpu_s390x_handle_mmu_fault (CPUS390XState *env, target_ulong address, int rw,
297
                                int mmu_idx);
298
#define cpu_handle_mmu_fault cpu_s390x_handle_mmu_fault
299

    
300

    
301
#ifndef CONFIG_USER_ONLY
302
void s390x_tod_timer(void *opaque);
303
void s390x_cpu_timer(void *opaque);
304

    
305
int s390_virtio_hypercall(CPUS390XState *env, uint64_t mem, uint64_t hypercall);
306

    
307
#ifdef CONFIG_KVM
308
void kvm_s390_interrupt(S390CPU *cpu, int type, uint32_t code);
309
void kvm_s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token);
310
void kvm_s390_interrupt_internal(S390CPU *cpu, int type, uint32_t parm,
311
                                 uint64_t parm64, int vm);
312
#else
313
static inline void kvm_s390_interrupt(S390CPU *cpu, int type, uint32_t code)
314
{
315
}
316

    
317
static inline void kvm_s390_virtio_irq(S390CPU *cpu, int config_change,
318
                                       uint64_t token)
319
{
320
}
321

    
322
static inline void kvm_s390_interrupt_internal(S390CPU *cpu, int type,
323
                                               uint32_t parm, uint64_t parm64,
324
                                               int vm)
325
{
326
}
327
#endif
328
S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
329
void s390_add_running_cpu(CPUS390XState *env);
330
unsigned s390_del_running_cpu(CPUS390XState *env);
331

    
332
/* service interrupts are floating therefore we must not pass an cpustate */
333
void s390_sclp_extint(uint32_t parm);
334

    
335
/* from s390-virtio-bus */
336
extern const hwaddr virtio_size;
337

    
338
#else
339
static inline void s390_add_running_cpu(CPUS390XState *env)
340
{
341
}
342

    
343
static inline unsigned s390_del_running_cpu(CPUS390XState *env)
344
{
345
    return 0;
346
}
347
#endif
348
void cpu_lock(void);
349
void cpu_unlock(void);
350

    
351
static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
352
{
353
    env->aregs[0] = newtls >> 32;
354
    env->aregs[1] = newtls & 0xffffffffULL;
355
}
356

    
357
#define cpu_init(model) (&cpu_s390x_init(model)->env)
358
#define cpu_exec cpu_s390x_exec
359
#define cpu_gen_code cpu_s390x_gen_code
360
#define cpu_signal_handler cpu_s390x_signal_handler
361

    
362
#include "exec/exec-all.h"
363

    
364
#define EXCP_EXT 1 /* external interrupt */
365
#define EXCP_SVC 2 /* supervisor call (syscall) */
366
#define EXCP_PGM 3 /* program interruption */
367

    
368
#define INTERRUPT_EXT        (1 << 0)
369
#define INTERRUPT_TOD        (1 << 1)
370
#define INTERRUPT_CPUTIMER   (1 << 2)
371

    
372
/* Program Status Word.  */
373
#define S390_PSWM_REGNUM 0
374
#define S390_PSWA_REGNUM 1
375
/* General Purpose Registers.  */
376
#define S390_R0_REGNUM 2
377
#define S390_R1_REGNUM 3
378
#define S390_R2_REGNUM 4
379
#define S390_R3_REGNUM 5
380
#define S390_R4_REGNUM 6
381
#define S390_R5_REGNUM 7
382
#define S390_R6_REGNUM 8
383
#define S390_R7_REGNUM 9
384
#define S390_R8_REGNUM 10
385
#define S390_R9_REGNUM 11
386
#define S390_R10_REGNUM 12
387
#define S390_R11_REGNUM 13
388
#define S390_R12_REGNUM 14
389
#define S390_R13_REGNUM 15
390
#define S390_R14_REGNUM 16
391
#define S390_R15_REGNUM 17
392
/* Access Registers.  */
393
#define S390_A0_REGNUM 18
394
#define S390_A1_REGNUM 19
395
#define S390_A2_REGNUM 20
396
#define S390_A3_REGNUM 21
397
#define S390_A4_REGNUM 22
398
#define S390_A5_REGNUM 23
399
#define S390_A6_REGNUM 24
400
#define S390_A7_REGNUM 25
401
#define S390_A8_REGNUM 26
402
#define S390_A9_REGNUM 27
403
#define S390_A10_REGNUM 28
404
#define S390_A11_REGNUM 29
405
#define S390_A12_REGNUM 30
406
#define S390_A13_REGNUM 31
407
#define S390_A14_REGNUM 32
408
#define S390_A15_REGNUM 33
409
/* Floating Point Control Word.  */
410
#define S390_FPC_REGNUM 34
411
/* Floating Point Registers.  */
412
#define S390_F0_REGNUM 35
413
#define S390_F1_REGNUM 36
414
#define S390_F2_REGNUM 37
415
#define S390_F3_REGNUM 38
416
#define S390_F4_REGNUM 39
417
#define S390_F5_REGNUM 40
418
#define S390_F6_REGNUM 41
419
#define S390_F7_REGNUM 42
420
#define S390_F8_REGNUM 43
421
#define S390_F9_REGNUM 44
422
#define S390_F10_REGNUM 45
423
#define S390_F11_REGNUM 46
424
#define S390_F12_REGNUM 47
425
#define S390_F13_REGNUM 48
426
#define S390_F14_REGNUM 49
427
#define S390_F15_REGNUM 50
428
/* Total.  */
429
#define S390_NUM_REGS 51
430

    
431
/* CC optimization */
432

    
433
enum cc_op {
434
    CC_OP_CONST0 = 0,           /* CC is 0 */
435
    CC_OP_CONST1,               /* CC is 1 */
436
    CC_OP_CONST2,               /* CC is 2 */
437
    CC_OP_CONST3,               /* CC is 3 */
438

    
439
    CC_OP_DYNAMIC,              /* CC calculation defined by env->cc_op */
440
    CC_OP_STATIC,               /* CC value is env->cc_op */
441

    
442
    CC_OP_NZ,                   /* env->cc_dst != 0 */
443
    CC_OP_LTGT_32,              /* signed less/greater than (32bit) */
444
    CC_OP_LTGT_64,              /* signed less/greater than (64bit) */
445
    CC_OP_LTUGTU_32,            /* unsigned less/greater than (32bit) */
446
    CC_OP_LTUGTU_64,            /* unsigned less/greater than (64bit) */
447
    CC_OP_LTGT0_32,             /* signed less/greater than 0 (32bit) */
448
    CC_OP_LTGT0_64,             /* signed less/greater than 0 (64bit) */
449

    
450
    CC_OP_ADD_64,               /* overflow on add (64bit) */
451
    CC_OP_ADDU_64,              /* overflow on unsigned add (64bit) */
452
    CC_OP_SUB_64,               /* overflow on subtraction (64bit) */
453
    CC_OP_SUBU_64,              /* overflow on unsigned subtraction (64bit) */
454
    CC_OP_ABS_64,               /* sign eval on abs (64bit) */
455
    CC_OP_NABS_64,              /* sign eval on nabs (64bit) */
456

    
457
    CC_OP_ADD_32,               /* overflow on add (32bit) */
458
    CC_OP_ADDU_32,              /* overflow on unsigned add (32bit) */
459
    CC_OP_SUB_32,               /* overflow on subtraction (32bit) */
460
    CC_OP_SUBU_32,              /* overflow on unsigned subtraction (32bit) */
461
    CC_OP_ABS_32,               /* sign eval on abs (64bit) */
462
    CC_OP_NABS_32,              /* sign eval on nabs (64bit) */
463

    
464
    CC_OP_COMP_32,              /* complement */
465
    CC_OP_COMP_64,              /* complement */
466

    
467
    CC_OP_TM_32,                /* test under mask (32bit) */
468
    CC_OP_TM_64,                /* test under mask (64bit) */
469

    
470
    CC_OP_LTGT_F32,             /* FP compare (32bit) */
471
    CC_OP_LTGT_F64,             /* FP compare (64bit) */
472

    
473
    CC_OP_NZ_F32,               /* FP dst != 0 (32bit) */
474
    CC_OP_NZ_F64,               /* FP dst != 0 (64bit) */
475

    
476
    CC_OP_ICM,                  /* insert characters under mask */
477
    CC_OP_SLAG,                 /* Calculate shift left signed */
478
    CC_OP_MAX
479
};
480

    
481
static const char *cc_names[] = {
482
    [CC_OP_CONST0]    = "CC_OP_CONST0",
483
    [CC_OP_CONST1]    = "CC_OP_CONST1",
484
    [CC_OP_CONST2]    = "CC_OP_CONST2",
485
    [CC_OP_CONST3]    = "CC_OP_CONST3",
486
    [CC_OP_DYNAMIC]   = "CC_OP_DYNAMIC",
487
    [CC_OP_STATIC]    = "CC_OP_STATIC",
488
    [CC_OP_NZ]        = "CC_OP_NZ",
489
    [CC_OP_LTGT_32]   = "CC_OP_LTGT_32",
490
    [CC_OP_LTGT_64]   = "CC_OP_LTGT_64",
491
    [CC_OP_LTUGTU_32] = "CC_OP_LTUGTU_32",
492
    [CC_OP_LTUGTU_64] = "CC_OP_LTUGTU_64",
493
    [CC_OP_LTGT0_32]  = "CC_OP_LTGT0_32",
494
    [CC_OP_LTGT0_64]  = "CC_OP_LTGT0_64",
495
    [CC_OP_ADD_64]    = "CC_OP_ADD_64",
496
    [CC_OP_ADDU_64]   = "CC_OP_ADDU_64",
497
    [CC_OP_SUB_64]    = "CC_OP_SUB_64",
498
    [CC_OP_SUBU_64]   = "CC_OP_SUBU_64",
499
    [CC_OP_ABS_64]    = "CC_OP_ABS_64",
500
    [CC_OP_NABS_64]   = "CC_OP_NABS_64",
501
    [CC_OP_ADD_32]    = "CC_OP_ADD_32",
502
    [CC_OP_ADDU_32]   = "CC_OP_ADDU_32",
503
    [CC_OP_SUB_32]    = "CC_OP_SUB_32",
504
    [CC_OP_SUBU_32]   = "CC_OP_SUBU_32",
505
    [CC_OP_ABS_32]    = "CC_OP_ABS_32",
506
    [CC_OP_NABS_32]   = "CC_OP_NABS_32",
507
    [CC_OP_COMP_32]   = "CC_OP_COMP_32",
508
    [CC_OP_COMP_64]   = "CC_OP_COMP_64",
509
    [CC_OP_TM_32]     = "CC_OP_TM_32",
510
    [CC_OP_TM_64]     = "CC_OP_TM_64",
511
    [CC_OP_LTGT_F32]  = "CC_OP_LTGT_F32",
512
    [CC_OP_LTGT_F64]  = "CC_OP_LTGT_F64",
513
    [CC_OP_NZ_F32]    = "CC_OP_NZ_F32",
514
    [CC_OP_NZ_F64]    = "CC_OP_NZ_F64",
515
    [CC_OP_ICM]       = "CC_OP_ICM",
516
    [CC_OP_SLAG]      = "CC_OP_SLAG",
517
};
518

    
519
static inline const char *cc_name(int cc_op)
520
{
521
    return cc_names[cc_op];
522
}
523

    
524
typedef struct LowCore
525
{
526
    /* prefix area: defined by architecture */
527
    uint32_t        ccw1[2];                  /* 0x000 */
528
    uint32_t        ccw2[4];                  /* 0x008 */
529
    uint8_t         pad1[0x80-0x18];          /* 0x018 */
530
    uint32_t        ext_params;               /* 0x080 */
531
    uint16_t        cpu_addr;                 /* 0x084 */
532
    uint16_t        ext_int_code;             /* 0x086 */
533
    uint16_t        svc_ilen;                 /* 0x088 */
534
    uint16_t        svc_code;                 /* 0x08a */
535
    uint16_t        pgm_ilen;                 /* 0x08c */
536
    uint16_t        pgm_code;                 /* 0x08e */
537
    uint32_t        data_exc_code;            /* 0x090 */
538
    uint16_t        mon_class_num;            /* 0x094 */
539
    uint16_t        per_perc_atmid;           /* 0x096 */
540
    uint64_t        per_address;              /* 0x098 */
541
    uint8_t         exc_access_id;            /* 0x0a0 */
542
    uint8_t         per_access_id;            /* 0x0a1 */
543
    uint8_t         op_access_id;             /* 0x0a2 */
544
    uint8_t         ar_access_id;             /* 0x0a3 */
545
    uint8_t         pad2[0xA8-0xA4];          /* 0x0a4 */
546
    uint64_t        trans_exc_code;           /* 0x0a8 */
547
    uint64_t        monitor_code;             /* 0x0b0 */
548
    uint16_t        subchannel_id;            /* 0x0b8 */
549
    uint16_t        subchannel_nr;            /* 0x0ba */
550
    uint32_t        io_int_parm;              /* 0x0bc */
551
    uint32_t        io_int_word;              /* 0x0c0 */
552
    uint8_t         pad3[0xc8-0xc4];          /* 0x0c4 */
553
    uint32_t        stfl_fac_list;            /* 0x0c8 */
554
    uint8_t         pad4[0xe8-0xcc];          /* 0x0cc */
555
    uint32_t        mcck_interruption_code[2]; /* 0x0e8 */
556
    uint8_t         pad5[0xf4-0xf0];          /* 0x0f0 */
557
    uint32_t        external_damage_code;     /* 0x0f4 */
558
    uint64_t        failing_storage_address;  /* 0x0f8 */
559
    uint8_t         pad6[0x120-0x100];        /* 0x100 */
560
    PSW             restart_old_psw;          /* 0x120 */
561
    PSW             external_old_psw;         /* 0x130 */
562
    PSW             svc_old_psw;              /* 0x140 */
563
    PSW             program_old_psw;          /* 0x150 */
564
    PSW             mcck_old_psw;             /* 0x160 */
565
    PSW             io_old_psw;               /* 0x170 */
566
    uint8_t         pad7[0x1a0-0x180];        /* 0x180 */
567
    PSW             restart_psw;              /* 0x1a0 */
568
    PSW             external_new_psw;         /* 0x1b0 */
569
    PSW             svc_new_psw;              /* 0x1c0 */
570
    PSW             program_new_psw;          /* 0x1d0 */
571
    PSW             mcck_new_psw;             /* 0x1e0 */
572
    PSW             io_new_psw;               /* 0x1f0 */
573
    PSW             return_psw;               /* 0x200 */
574
    uint8_t         irb[64];                  /* 0x210 */
575
    uint64_t        sync_enter_timer;         /* 0x250 */
576
    uint64_t        async_enter_timer;        /* 0x258 */
577
    uint64_t        exit_timer;               /* 0x260 */
578
    uint64_t        last_update_timer;        /* 0x268 */
579
    uint64_t        user_timer;               /* 0x270 */
580
    uint64_t        system_timer;             /* 0x278 */
581
    uint64_t        last_update_clock;        /* 0x280 */
582
    uint64_t        steal_clock;              /* 0x288 */
583
    PSW             return_mcck_psw;          /* 0x290 */
584
    uint8_t         pad8[0xc00-0x2a0];        /* 0x2a0 */
585
    /* System info area */
586
    uint64_t        save_area[16];            /* 0xc00 */
587
    uint8_t         pad9[0xd40-0xc80];        /* 0xc80 */
588
    uint64_t        kernel_stack;             /* 0xd40 */
589
    uint64_t        thread_info;              /* 0xd48 */
590
    uint64_t        async_stack;              /* 0xd50 */
591
    uint64_t        kernel_asce;              /* 0xd58 */
592
    uint64_t        user_asce;                /* 0xd60 */
593
    uint64_t        panic_stack;              /* 0xd68 */
594
    uint64_t        user_exec_asce;           /* 0xd70 */
595
    uint8_t         pad10[0xdc0-0xd78];       /* 0xd78 */
596

    
597
    /* SMP info area: defined by DJB */
598
    uint64_t        clock_comparator;         /* 0xdc0 */
599
    uint64_t        ext_call_fast;            /* 0xdc8 */
600
    uint64_t        percpu_offset;            /* 0xdd0 */
601
    uint64_t        current_task;             /* 0xdd8 */
602
    uint32_t        softirq_pending;          /* 0xde0 */
603
    uint32_t        pad_0x0de4;               /* 0xde4 */
604
    uint64_t        int_clock;                /* 0xde8 */
605
    uint8_t         pad12[0xe00-0xdf0];       /* 0xdf0 */
606

    
607
    /* 0xe00 is used as indicator for dump tools */
608
    /* whether the kernel died with panic() or not */
609
    uint32_t        panic_magic;              /* 0xe00 */
610

    
611
    uint8_t         pad13[0x11b8-0xe04];      /* 0xe04 */
612

    
613
    /* 64 bit extparam used for pfault, diag 250 etc  */
614
    uint64_t        ext_params2;               /* 0x11B8 */
615

    
616
    uint8_t         pad14[0x1200-0x11C0];      /* 0x11C0 */
617

    
618
    /* System info area */
619

    
620
    uint64_t        floating_pt_save_area[16]; /* 0x1200 */
621
    uint64_t        gpregs_save_area[16];      /* 0x1280 */
622
    uint32_t        st_status_fixed_logout[4]; /* 0x1300 */
623
    uint8_t         pad15[0x1318-0x1310];      /* 0x1310 */
624
    uint32_t        prefixreg_save_area;       /* 0x1318 */
625
    uint32_t        fpt_creg_save_area;        /* 0x131c */
626
    uint8_t         pad16[0x1324-0x1320];      /* 0x1320 */
627
    uint32_t        tod_progreg_save_area;     /* 0x1324 */
628
    uint32_t        cpu_timer_save_area[2];    /* 0x1328 */
629
    uint32_t        clock_comp_save_area[2];   /* 0x1330 */
630
    uint8_t         pad17[0x1340-0x1338];      /* 0x1338 */
631
    uint32_t        access_regs_save_area[16]; /* 0x1340 */
632
    uint64_t        cregs_save_area[16];       /* 0x1380 */
633

    
634
    /* align to the top of the prefix area */
635

    
636
    uint8_t         pad18[0x2000-0x1400];      /* 0x1400 */
637
} QEMU_PACKED LowCore;
638

    
639
/* STSI */
640
#define STSI_LEVEL_MASK         0x00000000f0000000ULL
641
#define STSI_LEVEL_CURRENT      0x0000000000000000ULL
642
#define STSI_LEVEL_1            0x0000000010000000ULL
643
#define STSI_LEVEL_2            0x0000000020000000ULL
644
#define STSI_LEVEL_3            0x0000000030000000ULL
645
#define STSI_R0_RESERVED_MASK   0x000000000fffff00ULL
646
#define STSI_R0_SEL1_MASK       0x00000000000000ffULL
647
#define STSI_R1_RESERVED_MASK   0x00000000ffff0000ULL
648
#define STSI_R1_SEL2_MASK       0x000000000000ffffULL
649

    
650
/* Basic Machine Configuration */
651
struct sysib_111 {
652
    uint32_t res1[8];
653
    uint8_t  manuf[16];
654
    uint8_t  type[4];
655
    uint8_t  res2[12];
656
    uint8_t  model[16];
657
    uint8_t  sequence[16];
658
    uint8_t  plant[4];
659
    uint8_t  res3[156];
660
};
661

    
662
/* Basic Machine CPU */
663
struct sysib_121 {
664
    uint32_t res1[80];
665
    uint8_t  sequence[16];
666
    uint8_t  plant[4];
667
    uint8_t  res2[2];
668
    uint16_t cpu_addr;
669
    uint8_t  res3[152];
670
};
671

    
672
/* Basic Machine CPUs */
673
struct sysib_122 {
674
    uint8_t res1[32];
675
    uint32_t capability;
676
    uint16_t total_cpus;
677
    uint16_t active_cpus;
678
    uint16_t standby_cpus;
679
    uint16_t reserved_cpus;
680
    uint16_t adjustments[2026];
681
};
682

    
683
/* LPAR CPU */
684
struct sysib_221 {
685
    uint32_t res1[80];
686
    uint8_t  sequence[16];
687
    uint8_t  plant[4];
688
    uint16_t cpu_id;
689
    uint16_t cpu_addr;
690
    uint8_t  res3[152];
691
};
692

    
693
/* LPAR CPUs */
694
struct sysib_222 {
695
    uint32_t res1[32];
696
    uint16_t lpar_num;
697
    uint8_t  res2;
698
    uint8_t  lcpuc;
699
    uint16_t total_cpus;
700
    uint16_t conf_cpus;
701
    uint16_t standby_cpus;
702
    uint16_t reserved_cpus;
703
    uint8_t  name[8];
704
    uint32_t caf;
705
    uint8_t  res3[16];
706
    uint16_t dedicated_cpus;
707
    uint16_t shared_cpus;
708
    uint8_t  res4[180];
709
};
710

    
711
/* VM CPUs */
712
struct sysib_322 {
713
    uint8_t  res1[31];
714
    uint8_t  count;
715
    struct {
716
        uint8_t  res2[4];
717
        uint16_t total_cpus;
718
        uint16_t conf_cpus;
719
        uint16_t standby_cpus;
720
        uint16_t reserved_cpus;
721
        uint8_t  name[8];
722
        uint32_t caf;
723
        uint8_t  cpi[16];
724
        uint8_t  res3[24];
725
    } vm[8];
726
    uint8_t res4[3552];
727
};
728

    
729
/* MMU defines */
730
#define _ASCE_ORIGIN            ~0xfffULL /* segment table origin             */
731
#define _ASCE_SUBSPACE          0x200     /* subspace group control           */
732
#define _ASCE_PRIVATE_SPACE     0x100     /* private space control            */
733
#define _ASCE_ALT_EVENT         0x80      /* storage alteration event control */
734
#define _ASCE_SPACE_SWITCH      0x40      /* space switch event               */
735
#define _ASCE_REAL_SPACE        0x20      /* real space control               */
736
#define _ASCE_TYPE_MASK         0x0c      /* asce table type mask             */
737
#define _ASCE_TYPE_REGION1      0x0c      /* region first table type          */
738
#define _ASCE_TYPE_REGION2      0x08      /* region second table type         */
739
#define _ASCE_TYPE_REGION3      0x04      /* region third table type          */
740
#define _ASCE_TYPE_SEGMENT      0x00      /* segment table type               */
741
#define _ASCE_TABLE_LENGTH      0x03      /* region table length              */
742

    
743
#define _REGION_ENTRY_ORIGIN    ~0xfffULL /* region/segment table origin      */
744
#define _REGION_ENTRY_INV       0x20      /* invalid region table entry       */
745
#define _REGION_ENTRY_TYPE_MASK 0x0c      /* region/segment table type mask   */
746
#define _REGION_ENTRY_TYPE_R1   0x0c      /* region first table type          */
747
#define _REGION_ENTRY_TYPE_R2   0x08      /* region second table type         */
748
#define _REGION_ENTRY_TYPE_R3   0x04      /* region third table type          */
749
#define _REGION_ENTRY_LENGTH    0x03      /* region third length              */
750

    
751
#define _SEGMENT_ENTRY_ORIGIN   ~0x7ffULL /* segment table origin             */
752
#define _SEGMENT_ENTRY_RO       0x200     /* page protection bit              */
753
#define _SEGMENT_ENTRY_INV      0x20      /* invalid segment table entry      */
754

    
755
#define _PAGE_RO        0x200            /* HW read-only bit  */
756
#define _PAGE_INVALID   0x400            /* HW invalid bit    */
757

    
758
#define SK_C                    (0x1 << 1)
759
#define SK_R                    (0x1 << 2)
760
#define SK_F                    (0x1 << 3)
761
#define SK_ACC_MASK             (0xf << 4)
762

    
763

    
764
/* EBCDIC handling */
765
static const uint8_t ebcdic2ascii[] = {
766
    0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
767
    0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
768
    0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
769
    0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
770
    0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
771
    0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
772
    0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
773
    0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
774
    0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
775
    0x87, 0xA4, 0x5B, 0x2E, 0x3C, 0x28, 0x2B, 0x21,
776
    0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
777
    0x8D, 0xE1, 0x5D, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
778
    0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
779
    0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
780
    0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
781
    0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
782
    0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
783
    0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
784
    0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
785
    0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
786
    0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
787
    0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
788
    0x9B, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
789
    0xAB, 0x07, 0xAA, 0x7C, 0x07, 0x07, 0x07, 0x07,
790
    0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
791
    0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
792
    0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
793
    0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
794
    0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
795
    0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
796
    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
797
    0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07,
798
};
799

    
800
static const uint8_t ascii2ebcdic [] = {
801
    0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
802
    0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
803
    0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
804
    0x18, 0x19, 0x3F, 0x27, 0x22, 0x1D, 0x1E, 0x1F,
805
    0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
806
    0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
807
    0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
808
    0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
809
    0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
810
    0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
811
    0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
812
    0xE7, 0xE8, 0xE9, 0xBA, 0xE0, 0xBB, 0xB0, 0x6D,
813
    0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
814
    0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
815
    0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
816
    0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
817
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
818
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
819
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
820
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
821
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
822
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
823
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
824
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
825
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
826
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
827
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
828
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
829
    0x3F, 0x59, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
830
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
831
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
832
    0x90, 0x3F, 0x3F, 0x3F, 0x3F, 0xEA, 0x3F, 0xFF
833
};
834

    
835
static inline void ebcdic_put(uint8_t *p, const char *ascii, int len)
836
{
837
    int i;
838

    
839
    for (i = 0; i < len; i++) {
840
        p[i] = ascii2ebcdic[(int)ascii[i]];
841
    }
842
}
843

    
844
#define SIGP_SENSE             0x01
845
#define SIGP_EXTERNAL_CALL     0x02
846
#define SIGP_EMERGENCY         0x03
847
#define SIGP_START             0x04
848
#define SIGP_STOP              0x05
849
#define SIGP_RESTART           0x06
850
#define SIGP_STOP_STORE_STATUS 0x09
851
#define SIGP_INITIAL_CPU_RESET 0x0b
852
#define SIGP_CPU_RESET         0x0c
853
#define SIGP_SET_PREFIX        0x0d
854
#define SIGP_STORE_STATUS_ADDR 0x0e
855
#define SIGP_SET_ARCH          0x12
856

    
857
/* cpu status bits */
858
#define SIGP_STAT_EQUIPMENT_CHECK   0x80000000UL
859
#define SIGP_STAT_INCORRECT_STATE   0x00000200UL
860
#define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
861
#define SIGP_STAT_EXT_CALL_PENDING  0x00000080UL
862
#define SIGP_STAT_STOPPED           0x00000040UL
863
#define SIGP_STAT_OPERATOR_INTERV   0x00000020UL
864
#define SIGP_STAT_CHECK_STOP        0x00000010UL
865
#define SIGP_STAT_INOPERATIVE       0x00000004UL
866
#define SIGP_STAT_INVALID_ORDER     0x00000002UL
867
#define SIGP_STAT_RECEIVER_CHECK    0x00000001UL
868

    
869
void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr);
870
int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc,
871
                  target_ulong *raddr, int *flags);
872
int sclp_service_call(uint32_t sccb, uint64_t code);
873
uint32_t calc_cc(CPUS390XState *env, uint32_t cc_op, uint64_t src, uint64_t dst,
874
                 uint64_t vr);
875

    
876
#define TARGET_HAS_ICE 1
877

    
878
/* The value of the TOD clock for 1.1.1970. */
879
#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
880

    
881
/* Converts ns to s390's clock format */
882
static inline uint64_t time2tod(uint64_t ns) {
883
    return (ns << 9) / 125;
884
}
885

    
886
static inline void cpu_inject_ext(CPUS390XState *env, uint32_t code, uint32_t param,
887
                                  uint64_t param64)
888
{
889
    if (env->ext_index == MAX_EXT_QUEUE - 1) {
890
        /* ugh - can't queue anymore. Let's drop. */
891
        return;
892
    }
893

    
894
    env->ext_index++;
895
    assert(env->ext_index < MAX_EXT_QUEUE);
896

    
897
    env->ext_queue[env->ext_index].code = code;
898
    env->ext_queue[env->ext_index].param = param;
899
    env->ext_queue[env->ext_index].param64 = param64;
900

    
901
    env->pending_int |= INTERRUPT_EXT;
902
    cpu_interrupt(env, CPU_INTERRUPT_HARD);
903
}
904

    
905
static inline bool cpu_has_work(CPUState *cpu)
906
{
907
    CPUS390XState *env = &S390_CPU(cpu)->env;
908

    
909
    return (env->interrupt_request & CPU_INTERRUPT_HARD) &&
910
        (env->psw.mask & PSW_MASK_EXT);
911
}
912

    
913
static inline void cpu_pc_from_tb(CPUS390XState *env, TranslationBlock* tb)
914
{
915
    env->psw.addr = tb->pc;
916
}
917

    
918
/* fpu_helper.c */
919
uint32_t set_cc_f32(CPUS390XState *env, float32 v1, float32 v2);
920
uint32_t set_cc_f64(CPUS390XState *env, float64 v1, float64 v2);
921
uint32_t set_cc_nz_f32(float32 v);
922
uint32_t set_cc_nz_f64(float64 v);
923

    
924
/* misc_helper.c */
925
void program_interrupt(CPUS390XState *env, uint32_t code, int ilen);
926

    
927
#endif