Fix version for v6.2.0-rc2 release
[qemu.git] / target / s390x / cpu.h
1 /*
2 * S/390 virtual CPU header
3 *
4 * For details on the s390x architecture and used definitions (e.g.,
5 * PSW, PER and DAT (Dynamic Address Translation)), please refer to
6 * the "z/Architecture Principles of Operations" - a.k.a. PoP.
7 *
8 * Copyright (c) 2009 Ulrich Hecht
9 * Copyright IBM Corp. 2012, 2018
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #ifndef S390X_CPU_H
26 #define S390X_CPU_H
27
28 #include "cpu-qom.h"
29 #include "cpu_models.h"
30 #include "exec/cpu-defs.h"
31
32 #define ELF_MACHINE_UNAME "S390X"
33
34 /* The z/Architecture has a strong memory model with some store-after-load re-ordering */
35 #define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)
36
37 #define TARGET_INSN_START_EXTRA_WORDS 2
38
39 #define MMU_USER_IDX 0
40
41 #define S390_MAX_CPUS 248
42
43 #ifndef CONFIG_KVM
44 #define S390_ADAPTER_SUPPRESSIBLE 0x01
45 #else
46 #define S390_ADAPTER_SUPPRESSIBLE KVM_S390_ADAPTER_SUPPRESSIBLE
47 #endif
48
49 typedef struct PSW {
50 uint64_t mask;
51 uint64_t addr;
52 } PSW;
53
54 struct CPUS390XState {
55 uint64_t regs[16]; /* GP registers */
56 /*
57 * The floating point registers are part of the vector registers.
58 * vregs[0][0] -> vregs[15][0] are 16 floating point registers
59 */
60 uint64_t vregs[32][2] QEMU_ALIGNED(16); /* vector registers */
61 uint32_t aregs[16]; /* access registers */
62 uint64_t gscb[4]; /* guarded storage control */
63 uint64_t etoken; /* etoken */
64 uint64_t etoken_extension; /* etoken extension */
65
66 /* Fields up to this point are not cleared by initial CPU reset */
67 struct {} start_initial_reset_fields;
68
69 uint32_t fpc; /* floating-point control register */
70 uint32_t cc_op;
71 bool bpbc; /* branch prediction blocking */
72
73 float_status fpu_status; /* passed to softfloat lib */
74
75 /* The low part of a 128-bit return, or remainder of a divide. */
76 uint64_t retxl;
77
78 PSW psw;
79
80 S390CrashReason crash_reason;
81
82 uint64_t cc_src;
83 uint64_t cc_dst;
84 uint64_t cc_vr;
85
86 uint64_t ex_value;
87
88 uint64_t __excp_addr;
89 uint64_t psa;
90
91 uint32_t int_pgm_code;
92 uint32_t int_pgm_ilen;
93
94 uint32_t int_svc_code;
95 uint32_t int_svc_ilen;
96
97 uint64_t per_address;
98 uint16_t per_perc_atmid;
99
100 uint64_t cregs[16]; /* control registers */
101
102 uint64_t ckc;
103 uint64_t cputm;
104 uint32_t todpr;
105
106 uint64_t pfault_token;
107 uint64_t pfault_compare;
108 uint64_t pfault_select;
109
110 uint64_t gbea;
111 uint64_t pp;
112
113 /* Fields up to this point are not cleared by normal CPU reset */
114 struct {} start_normal_reset_fields;
115 uint8_t riccb[64]; /* runtime instrumentation control */
116
117 int pending_int;
118 uint16_t external_call_addr;
119 DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS);
120
121 uint64_t diag318_info;
122
123 #if !defined(CONFIG_USER_ONLY)
124 uint64_t tlb_fill_tec; /* translation exception code during tlb_fill */
125 int tlb_fill_exc; /* exception number seen during tlb_fill */
126 #endif
127
128 /* Fields up to this point are cleared by a CPU reset */
129 struct {} end_reset_fields;
130
131 #if !defined(CONFIG_USER_ONLY)
132 uint32_t core_id; /* PoP "CPU address", same as cpu_index */
133 uint64_t cpuid;
134 #endif
135
136 QEMUTimer *tod_timer;
137
138 QEMUTimer *cpu_timer;
139
140 /*
141 * The cpu state represents the logical state of a cpu. In contrast to other
142 * architectures, there is a difference between a halt and a stop on s390.
143 * If all cpus are either stopped (including check stop) or in the disabled
144 * wait state, the vm can be shut down.
145 * The acceptable cpu_state values are defined in the CpuInfoS390State
146 * enum.
147 */
148 uint8_t cpu_state;
149
150 /* currently processed sigp order */
151 uint8_t sigp_order;
152
153 };
154
155 static inline uint64_t *get_freg(CPUS390XState *cs, int nr)
156 {
157 return &cs->vregs[nr][0];
158 }
159
160 /**
161 * S390CPU:
162 * @env: #CPUS390XState.
163 *
164 * An S/390 CPU.
165 */
166 struct S390CPU {
167 /*< private >*/
168 CPUState parent_obj;
169 /*< public >*/
170
171 CPUNegativeOffsetState neg;
172 CPUS390XState env;
173 S390CPUModel *model;
174 /* needed for live migration */
175 void *irqstate;
176 uint32_t irqstate_saved_size;
177 };
178
179
180 #ifndef CONFIG_USER_ONLY
181 extern const VMStateDescription vmstate_s390_cpu;
182 #endif
183
184 /* distinguish between 24 bit and 31 bit addressing */
185 #define HIGH_ORDER_BIT 0x80000000
186
187 /* Interrupt Codes */
188 /* Program Interrupts */
189 #define PGM_OPERATION 0x0001
190 #define PGM_PRIVILEGED 0x0002
191 #define PGM_EXECUTE 0x0003
192 #define PGM_PROTECTION 0x0004
193 #define PGM_ADDRESSING 0x0005
194 #define PGM_SPECIFICATION 0x0006
195 #define PGM_DATA 0x0007
196 #define PGM_FIXPT_OVERFLOW 0x0008
197 #define PGM_FIXPT_DIVIDE 0x0009
198 #define PGM_DEC_OVERFLOW 0x000a
199 #define PGM_DEC_DIVIDE 0x000b
200 #define PGM_HFP_EXP_OVERFLOW 0x000c
201 #define PGM_HFP_EXP_UNDERFLOW 0x000d
202 #define PGM_HFP_SIGNIFICANCE 0x000e
203 #define PGM_HFP_DIVIDE 0x000f
204 #define PGM_SEGMENT_TRANS 0x0010
205 #define PGM_PAGE_TRANS 0x0011
206 #define PGM_TRANS_SPEC 0x0012
207 #define PGM_SPECIAL_OP 0x0013
208 #define PGM_OPERAND 0x0015
209 #define PGM_TRACE_TABLE 0x0016
210 #define PGM_VECTOR_PROCESSING 0x001b
211 #define PGM_SPACE_SWITCH 0x001c
212 #define PGM_HFP_SQRT 0x001d
213 #define PGM_PC_TRANS_SPEC 0x001f
214 #define PGM_AFX_TRANS 0x0020
215 #define PGM_ASX_TRANS 0x0021
216 #define PGM_LX_TRANS 0x0022
217 #define PGM_EX_TRANS 0x0023
218 #define PGM_PRIM_AUTH 0x0024
219 #define PGM_SEC_AUTH 0x0025
220 #define PGM_ALET_SPEC 0x0028
221 #define PGM_ALEN_SPEC 0x0029
222 #define PGM_ALE_SEQ 0x002a
223 #define PGM_ASTE_VALID 0x002b
224 #define PGM_ASTE_SEQ 0x002c
225 #define PGM_EXT_AUTH 0x002d
226 #define PGM_STACK_FULL 0x0030
227 #define PGM_STACK_EMPTY 0x0031
228 #define PGM_STACK_SPEC 0x0032
229 #define PGM_STACK_TYPE 0x0033
230 #define PGM_STACK_OP 0x0034
231 #define PGM_ASCE_TYPE 0x0038
232 #define PGM_REG_FIRST_TRANS 0x0039
233 #define PGM_REG_SEC_TRANS 0x003a
234 #define PGM_REG_THIRD_TRANS 0x003b
235 #define PGM_MONITOR 0x0040
236 #define PGM_PER 0x0080
237 #define PGM_CRYPTO 0x0119
238
239 /* External Interrupts */
240 #define EXT_INTERRUPT_KEY 0x0040
241 #define EXT_CLOCK_COMP 0x1004
242 #define EXT_CPU_TIMER 0x1005
243 #define EXT_MALFUNCTION 0x1200
244 #define EXT_EMERGENCY 0x1201
245 #define EXT_EXTERNAL_CALL 0x1202
246 #define EXT_ETR 0x1406
247 #define EXT_SERVICE 0x2401
248 #define EXT_VIRTIO 0x2603
249
250 /* PSW defines */
251 #undef PSW_MASK_PER
252 #undef PSW_MASK_UNUSED_2
253 #undef PSW_MASK_UNUSED_3
254 #undef PSW_MASK_DAT
255 #undef PSW_MASK_IO
256 #undef PSW_MASK_EXT
257 #undef PSW_MASK_KEY
258 #undef PSW_SHIFT_KEY
259 #undef PSW_MASK_MCHECK
260 #undef PSW_MASK_WAIT
261 #undef PSW_MASK_PSTATE
262 #undef PSW_MASK_ASC
263 #undef PSW_SHIFT_ASC
264 #undef PSW_MASK_CC
265 #undef PSW_MASK_PM
266 #undef PSW_MASK_RI
267 #undef PSW_SHIFT_MASK_PM
268 #undef PSW_MASK_64
269 #undef PSW_MASK_32
270 #undef PSW_MASK_ESA_ADDR
271
272 #define PSW_MASK_PER 0x4000000000000000ULL
273 #define PSW_MASK_UNUSED_2 0x2000000000000000ULL
274 #define PSW_MASK_UNUSED_3 0x1000000000000000ULL
275 #define PSW_MASK_DAT 0x0400000000000000ULL
276 #define PSW_MASK_IO 0x0200000000000000ULL
277 #define PSW_MASK_EXT 0x0100000000000000ULL
278 #define PSW_MASK_KEY 0x00F0000000000000ULL
279 #define PSW_SHIFT_KEY 52
280 #define PSW_MASK_SHORTPSW 0x0008000000000000ULL
281 #define PSW_MASK_MCHECK 0x0004000000000000ULL
282 #define PSW_MASK_WAIT 0x0002000000000000ULL
283 #define PSW_MASK_PSTATE 0x0001000000000000ULL
284 #define PSW_MASK_ASC 0x0000C00000000000ULL
285 #define PSW_SHIFT_ASC 46
286 #define PSW_MASK_CC 0x0000300000000000ULL
287 #define PSW_MASK_PM 0x00000F0000000000ULL
288 #define PSW_SHIFT_MASK_PM 40
289 #define PSW_MASK_RI 0x0000008000000000ULL
290 #define PSW_MASK_64 0x0000000100000000ULL
291 #define PSW_MASK_32 0x0000000080000000ULL
292 #define PSW_MASK_SHORT_ADDR 0x000000007fffffffULL
293 #define PSW_MASK_SHORT_CTRL 0xffffffff80000000ULL
294
295 #undef PSW_ASC_PRIMARY
296 #undef PSW_ASC_ACCREG
297 #undef PSW_ASC_SECONDARY
298 #undef PSW_ASC_HOME
299
300 #define PSW_ASC_PRIMARY 0x0000000000000000ULL
301 #define PSW_ASC_ACCREG 0x0000400000000000ULL
302 #define PSW_ASC_SECONDARY 0x0000800000000000ULL
303 #define PSW_ASC_HOME 0x0000C00000000000ULL
304
305 /* the address space values shifted */
306 #define AS_PRIMARY 0
307 #define AS_ACCREG 1
308 #define AS_SECONDARY 2
309 #define AS_HOME 3
310
311 /* tb flags */
312
313 #define FLAG_MASK_PSW_SHIFT 31
314 #define FLAG_MASK_PER (PSW_MASK_PER >> FLAG_MASK_PSW_SHIFT)
315 #define FLAG_MASK_DAT (PSW_MASK_DAT >> FLAG_MASK_PSW_SHIFT)
316 #define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT)
317 #define FLAG_MASK_ASC (PSW_MASK_ASC >> FLAG_MASK_PSW_SHIFT)
318 #define FLAG_MASK_64 (PSW_MASK_64 >> FLAG_MASK_PSW_SHIFT)
319 #define FLAG_MASK_32 (PSW_MASK_32 >> FLAG_MASK_PSW_SHIFT)
320 #define FLAG_MASK_PSW (FLAG_MASK_PER | FLAG_MASK_DAT | FLAG_MASK_PSTATE \
321 | FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32)
322
323 /* we'll use some unused PSW positions to store CR flags in tb flags */
324 #define FLAG_MASK_AFP (PSW_MASK_UNUSED_2 >> FLAG_MASK_PSW_SHIFT)
325 #define FLAG_MASK_VECTOR (PSW_MASK_UNUSED_3 >> FLAG_MASK_PSW_SHIFT)
326
327 /* Control register 0 bits */
328 #define CR0_LOWPROT 0x0000000010000000ULL
329 #define CR0_SECONDARY 0x0000000004000000ULL
330 #define CR0_EDAT 0x0000000000800000ULL
331 #define CR0_AFP 0x0000000000040000ULL
332 #define CR0_VECTOR 0x0000000000020000ULL
333 #define CR0_IEP 0x0000000000100000ULL
334 #define CR0_EMERGENCY_SIGNAL_SC 0x0000000000004000ULL
335 #define CR0_EXTERNAL_CALL_SC 0x0000000000002000ULL
336 #define CR0_CKC_SC 0x0000000000000800ULL
337 #define CR0_CPU_TIMER_SC 0x0000000000000400ULL
338 #define CR0_SERVICE_SC 0x0000000000000200ULL
339
340 /* Control register 14 bits */
341 #define CR14_CHANNEL_REPORT_SC 0x0000000010000000ULL
342
343 /* MMU */
344 #define MMU_PRIMARY_IDX 0
345 #define MMU_SECONDARY_IDX 1
346 #define MMU_HOME_IDX 2
347 #define MMU_REAL_IDX 3
348
349 static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch)
350 {
351 #ifdef CONFIG_USER_ONLY
352 return MMU_USER_IDX;
353 #else
354 if (!(env->psw.mask & PSW_MASK_DAT)) {
355 return MMU_REAL_IDX;
356 }
357
358 if (ifetch) {
359 if ((env->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME) {
360 return MMU_HOME_IDX;
361 }
362 return MMU_PRIMARY_IDX;
363 }
364
365 switch (env->psw.mask & PSW_MASK_ASC) {
366 case PSW_ASC_PRIMARY:
367 return MMU_PRIMARY_IDX;
368 case PSW_ASC_SECONDARY:
369 return MMU_SECONDARY_IDX;
370 case PSW_ASC_HOME:
371 return MMU_HOME_IDX;
372 case PSW_ASC_ACCREG:
373 /* Fallthrough: access register mode is not yet supported */
374 default:
375 abort();
376 }
377 #endif
378 }
379
380 static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
381 target_ulong *cs_base, uint32_t *flags)
382 {
383 *pc = env->psw.addr;
384 *cs_base = env->ex_value;
385 *flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW;
386 if (env->cregs[0] & CR0_AFP) {
387 *flags |= FLAG_MASK_AFP;
388 }
389 if (env->cregs[0] & CR0_VECTOR) {
390 *flags |= FLAG_MASK_VECTOR;
391 }
392 }
393
394 /* PER bits from control register 9 */
395 #define PER_CR9_EVENT_BRANCH 0x80000000
396 #define PER_CR9_EVENT_IFETCH 0x40000000
397 #define PER_CR9_EVENT_STORE 0x20000000
398 #define PER_CR9_EVENT_STORE_REAL 0x08000000
399 #define PER_CR9_EVENT_NULLIFICATION 0x01000000
400 #define PER_CR9_CONTROL_BRANCH_ADDRESS 0x00800000
401 #define PER_CR9_CONTROL_ALTERATION 0x00200000
402
403 /* PER bits from the PER CODE/ATMID/AI in lowcore */
404 #define PER_CODE_EVENT_BRANCH 0x8000
405 #define PER_CODE_EVENT_IFETCH 0x4000
406 #define PER_CODE_EVENT_STORE 0x2000
407 #define PER_CODE_EVENT_STORE_REAL 0x0800
408 #define PER_CODE_EVENT_NULLIFICATION 0x0100
409
410 #define EXCP_EXT 1 /* external interrupt */
411 #define EXCP_SVC 2 /* supervisor call (syscall) */
412 #define EXCP_PGM 3 /* program interruption */
413 #define EXCP_RESTART 4 /* restart interrupt */
414 #define EXCP_STOP 5 /* stop interrupt */
415 #define EXCP_IO 7 /* I/O interrupt */
416 #define EXCP_MCHK 8 /* machine check */
417
418 #define INTERRUPT_EXT_CPU_TIMER (1 << 3)
419 #define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4)
420 #define INTERRUPT_EXTERNAL_CALL (1 << 5)
421 #define INTERRUPT_EMERGENCY_SIGNAL (1 << 6)
422 #define INTERRUPT_RESTART (1 << 7)
423 #define INTERRUPT_STOP (1 << 8)
424
425 /* Program Status Word. */
426 #define S390_PSWM_REGNUM 0
427 #define S390_PSWA_REGNUM 1
428 /* General Purpose Registers. */
429 #define S390_R0_REGNUM 2
430 #define S390_R1_REGNUM 3
431 #define S390_R2_REGNUM 4
432 #define S390_R3_REGNUM 5
433 #define S390_R4_REGNUM 6
434 #define S390_R5_REGNUM 7
435 #define S390_R6_REGNUM 8
436 #define S390_R7_REGNUM 9
437 #define S390_R8_REGNUM 10
438 #define S390_R9_REGNUM 11
439 #define S390_R10_REGNUM 12
440 #define S390_R11_REGNUM 13
441 #define S390_R12_REGNUM 14
442 #define S390_R13_REGNUM 15
443 #define S390_R14_REGNUM 16
444 #define S390_R15_REGNUM 17
445 /* Total Core Registers. */
446 #define S390_NUM_CORE_REGS 18
447
448 static inline void setcc(S390CPU *cpu, uint64_t cc)
449 {
450 CPUS390XState *env = &cpu->env;
451
452 env->psw.mask &= ~(3ull << 44);
453 env->psw.mask |= (cc & 3) << 44;
454 env->cc_op = cc;
455 }
456
457 /* STSI */
458 #define STSI_R0_FC_MASK 0x00000000f0000000ULL
459 #define STSI_R0_FC_CURRENT 0x0000000000000000ULL
460 #define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL
461 #define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL
462 #define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL
463 #define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL
464 #define STSI_R0_SEL1_MASK 0x00000000000000ffULL
465 #define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL
466 #define STSI_R1_SEL2_MASK 0x000000000000ffffULL
467
468 /* Basic Machine Configuration */
469 typedef struct SysIB_111 {
470 uint8_t res1[32];
471 uint8_t manuf[16];
472 uint8_t type[4];
473 uint8_t res2[12];
474 uint8_t model[16];
475 uint8_t sequence[16];
476 uint8_t plant[4];
477 uint8_t res3[3996];
478 } SysIB_111;
479 QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096);
480
481 /* Basic Machine CPU */
482 typedef struct SysIB_121 {
483 uint8_t res1[80];
484 uint8_t sequence[16];
485 uint8_t plant[4];
486 uint8_t res2[2];
487 uint16_t cpu_addr;
488 uint8_t res3[3992];
489 } SysIB_121;
490 QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096);
491
492 /* Basic Machine CPUs */
493 typedef struct SysIB_122 {
494 uint8_t res1[32];
495 uint32_t capability;
496 uint16_t total_cpus;
497 uint16_t conf_cpus;
498 uint16_t standby_cpus;
499 uint16_t reserved_cpus;
500 uint16_t adjustments[2026];
501 } SysIB_122;
502 QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096);
503
504 /* LPAR CPU */
505 typedef struct SysIB_221 {
506 uint8_t res1[80];
507 uint8_t sequence[16];
508 uint8_t plant[4];
509 uint16_t cpu_id;
510 uint16_t cpu_addr;
511 uint8_t res3[3992];
512 } SysIB_221;
513 QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096);
514
515 /* LPAR CPUs */
516 typedef struct SysIB_222 {
517 uint8_t res1[32];
518 uint16_t lpar_num;
519 uint8_t res2;
520 uint8_t lcpuc;
521 uint16_t total_cpus;
522 uint16_t conf_cpus;
523 uint16_t standby_cpus;
524 uint16_t reserved_cpus;
525 uint8_t name[8];
526 uint32_t caf;
527 uint8_t res3[16];
528 uint16_t dedicated_cpus;
529 uint16_t shared_cpus;
530 uint8_t res4[4020];
531 } SysIB_222;
532 QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096);
533
534 /* VM CPUs */
535 typedef struct SysIB_322 {
536 uint8_t res1[31];
537 uint8_t count;
538 struct {
539 uint8_t res2[4];
540 uint16_t total_cpus;
541 uint16_t conf_cpus;
542 uint16_t standby_cpus;
543 uint16_t reserved_cpus;
544 uint8_t name[8];
545 uint32_t caf;
546 uint8_t cpi[16];
547 uint8_t res5[3];
548 uint8_t ext_name_encoding;
549 uint32_t res3;
550 uint8_t uuid[16];
551 } vm[8];
552 uint8_t res4[1504];
553 uint8_t ext_names[8][256];
554 } SysIB_322;
555 QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096);
556
557 typedef union SysIB {
558 SysIB_111 sysib_111;
559 SysIB_121 sysib_121;
560 SysIB_122 sysib_122;
561 SysIB_221 sysib_221;
562 SysIB_222 sysib_222;
563 SysIB_322 sysib_322;
564 } SysIB;
565 QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096);
566
567 /* MMU defines */
568 #define ASCE_ORIGIN (~0xfffULL) /* segment table origin */
569 #define ASCE_SUBSPACE 0x200 /* subspace group control */
570 #define ASCE_PRIVATE_SPACE 0x100 /* private space control */
571 #define ASCE_ALT_EVENT 0x80 /* storage alteration event control */
572 #define ASCE_SPACE_SWITCH 0x40 /* space switch event */
573 #define ASCE_REAL_SPACE 0x20 /* real space control */
574 #define ASCE_TYPE_MASK 0x0c /* asce table type mask */
575 #define ASCE_TYPE_REGION1 0x0c /* region first table type */
576 #define ASCE_TYPE_REGION2 0x08 /* region second table type */
577 #define ASCE_TYPE_REGION3 0x04 /* region third table type */
578 #define ASCE_TYPE_SEGMENT 0x00 /* segment table type */
579 #define ASCE_TABLE_LENGTH 0x03 /* region table length */
580
581 #define REGION_ENTRY_ORIGIN 0xfffffffffffff000ULL
582 #define REGION_ENTRY_P 0x0000000000000200ULL
583 #define REGION_ENTRY_TF 0x00000000000000c0ULL
584 #define REGION_ENTRY_I 0x0000000000000020ULL
585 #define REGION_ENTRY_TT 0x000000000000000cULL
586 #define REGION_ENTRY_TL 0x0000000000000003ULL
587
588 #define REGION_ENTRY_TT_REGION1 0x000000000000000cULL
589 #define REGION_ENTRY_TT_REGION2 0x0000000000000008ULL
590 #define REGION_ENTRY_TT_REGION3 0x0000000000000004ULL
591
592 #define REGION3_ENTRY_RFAA 0xffffffff80000000ULL
593 #define REGION3_ENTRY_AV 0x0000000000010000ULL
594 #define REGION3_ENTRY_ACC 0x000000000000f000ULL
595 #define REGION3_ENTRY_F 0x0000000000000800ULL
596 #define REGION3_ENTRY_FC 0x0000000000000400ULL
597 #define REGION3_ENTRY_IEP 0x0000000000000100ULL
598 #define REGION3_ENTRY_CR 0x0000000000000010ULL
599
600 #define SEGMENT_ENTRY_ORIGIN 0xfffffffffffff800ULL
601 #define SEGMENT_ENTRY_SFAA 0xfffffffffff00000ULL
602 #define SEGMENT_ENTRY_AV 0x0000000000010000ULL
603 #define SEGMENT_ENTRY_ACC 0x000000000000f000ULL
604 #define SEGMENT_ENTRY_F 0x0000000000000800ULL
605 #define SEGMENT_ENTRY_FC 0x0000000000000400ULL
606 #define SEGMENT_ENTRY_P 0x0000000000000200ULL
607 #define SEGMENT_ENTRY_IEP 0x0000000000000100ULL
608 #define SEGMENT_ENTRY_I 0x0000000000000020ULL
609 #define SEGMENT_ENTRY_CS 0x0000000000000010ULL
610 #define SEGMENT_ENTRY_TT 0x000000000000000cULL
611
612 #define SEGMENT_ENTRY_TT_SEGMENT 0x0000000000000000ULL
613
614 #define PAGE_ENTRY_0 0x0000000000000800ULL
615 #define PAGE_ENTRY_I 0x0000000000000400ULL
616 #define PAGE_ENTRY_P 0x0000000000000200ULL
617 #define PAGE_ENTRY_IEP 0x0000000000000100ULL
618
619 #define VADDR_REGION1_TX_MASK 0xffe0000000000000ULL
620 #define VADDR_REGION2_TX_MASK 0x001ffc0000000000ULL
621 #define VADDR_REGION3_TX_MASK 0x000003ff80000000ULL
622 #define VADDR_SEGMENT_TX_MASK 0x000000007ff00000ULL
623 #define VADDR_PAGE_TX_MASK 0x00000000000ff000ULL
624
625 #define VADDR_REGION1_TX(vaddr) (((vaddr) & VADDR_REGION1_TX_MASK) >> 53)
626 #define VADDR_REGION2_TX(vaddr) (((vaddr) & VADDR_REGION2_TX_MASK) >> 42)
627 #define VADDR_REGION3_TX(vaddr) (((vaddr) & VADDR_REGION3_TX_MASK) >> 31)
628 #define VADDR_SEGMENT_TX(vaddr) (((vaddr) & VADDR_SEGMENT_TX_MASK) >> 20)
629 #define VADDR_PAGE_TX(vaddr) (((vaddr) & VADDR_PAGE_TX_MASK) >> 12)
630
631 #define VADDR_REGION1_TL(vaddr) (((vaddr) & 0xc000000000000000ULL) >> 62)
632 #define VADDR_REGION2_TL(vaddr) (((vaddr) & 0x0018000000000000ULL) >> 51)
633 #define VADDR_REGION3_TL(vaddr) (((vaddr) & 0x0000030000000000ULL) >> 40)
634 #define VADDR_SEGMENT_TL(vaddr) (((vaddr) & 0x0000000060000000ULL) >> 29)
635
636 #define SK_C (0x1 << 1)
637 #define SK_R (0x1 << 2)
638 #define SK_F (0x1 << 3)
639 #define SK_ACC_MASK (0xf << 4)
640
641 /* SIGP order codes */
642 #define SIGP_SENSE 0x01
643 #define SIGP_EXTERNAL_CALL 0x02
644 #define SIGP_EMERGENCY 0x03
645 #define SIGP_START 0x04
646 #define SIGP_STOP 0x05
647 #define SIGP_RESTART 0x06
648 #define SIGP_STOP_STORE_STATUS 0x09
649 #define SIGP_INITIAL_CPU_RESET 0x0b
650 #define SIGP_CPU_RESET 0x0c
651 #define SIGP_SET_PREFIX 0x0d
652 #define SIGP_STORE_STATUS_ADDR 0x0e
653 #define SIGP_SET_ARCH 0x12
654 #define SIGP_COND_EMERGENCY 0x13
655 #define SIGP_SENSE_RUNNING 0x15
656 #define SIGP_STORE_ADTL_STATUS 0x17
657
658 /* SIGP condition codes */
659 #define SIGP_CC_ORDER_CODE_ACCEPTED 0
660 #define SIGP_CC_STATUS_STORED 1
661 #define SIGP_CC_BUSY 2
662 #define SIGP_CC_NOT_OPERATIONAL 3
663
664 /* SIGP status bits */
665 #define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL
666 #define SIGP_STAT_NOT_RUNNING 0x00000400UL
667 #define SIGP_STAT_INCORRECT_STATE 0x00000200UL
668 #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
669 #define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL
670 #define SIGP_STAT_STOPPED 0x00000040UL
671 #define SIGP_STAT_OPERATOR_INTERV 0x00000020UL
672 #define SIGP_STAT_CHECK_STOP 0x00000010UL
673 #define SIGP_STAT_INOPERATIVE 0x00000004UL
674 #define SIGP_STAT_INVALID_ORDER 0x00000002UL
675 #define SIGP_STAT_RECEIVER_CHECK 0x00000001UL
676
677 /* SIGP SET ARCHITECTURE modes */
678 #define SIGP_MODE_ESA_S390 0
679 #define SIGP_MODE_Z_ARCH_TRANS_ALL_PSW 1
680 #define SIGP_MODE_Z_ARCH_TRANS_CUR_PSW 2
681
682 /* SIGP order code mask corresponding to bit positions 56-63 */
683 #define SIGP_ORDER_MASK 0x000000ff
684
685 /* machine check interruption code */
686
687 /* subclasses */
688 #define MCIC_SC_SD 0x8000000000000000ULL
689 #define MCIC_SC_PD 0x4000000000000000ULL
690 #define MCIC_SC_SR 0x2000000000000000ULL
691 #define MCIC_SC_CD 0x0800000000000000ULL
692 #define MCIC_SC_ED 0x0400000000000000ULL
693 #define MCIC_SC_DG 0x0100000000000000ULL
694 #define MCIC_SC_W 0x0080000000000000ULL
695 #define MCIC_SC_CP 0x0040000000000000ULL
696 #define MCIC_SC_SP 0x0020000000000000ULL
697 #define MCIC_SC_CK 0x0010000000000000ULL
698
699 /* subclass modifiers */
700 #define MCIC_SCM_B 0x0002000000000000ULL
701 #define MCIC_SCM_DA 0x0000000020000000ULL
702 #define MCIC_SCM_AP 0x0000000000080000ULL
703
704 /* storage errors */
705 #define MCIC_SE_SE 0x0000800000000000ULL
706 #define MCIC_SE_SC 0x0000400000000000ULL
707 #define MCIC_SE_KE 0x0000200000000000ULL
708 #define MCIC_SE_DS 0x0000100000000000ULL
709 #define MCIC_SE_IE 0x0000000080000000ULL
710
711 /* validity bits */
712 #define MCIC_VB_WP 0x0000080000000000ULL
713 #define MCIC_VB_MS 0x0000040000000000ULL
714 #define MCIC_VB_PM 0x0000020000000000ULL
715 #define MCIC_VB_IA 0x0000010000000000ULL
716 #define MCIC_VB_FA 0x0000008000000000ULL
717 #define MCIC_VB_VR 0x0000004000000000ULL
718 #define MCIC_VB_EC 0x0000002000000000ULL
719 #define MCIC_VB_FP 0x0000001000000000ULL
720 #define MCIC_VB_GR 0x0000000800000000ULL
721 #define MCIC_VB_CR 0x0000000400000000ULL
722 #define MCIC_VB_ST 0x0000000100000000ULL
723 #define MCIC_VB_AR 0x0000000040000000ULL
724 #define MCIC_VB_GS 0x0000000008000000ULL
725 #define MCIC_VB_PR 0x0000000000200000ULL
726 #define MCIC_VB_FC 0x0000000000100000ULL
727 #define MCIC_VB_CT 0x0000000000020000ULL
728 #define MCIC_VB_CC 0x0000000000010000ULL
729
730 static inline uint64_t s390_build_validity_mcic(void)
731 {
732 uint64_t mcic;
733
734 /*
735 * Indicate all validity bits (no damage) only. Other bits have to be
736 * added by the caller. (storage errors, subclasses and subclass modifiers)
737 */
738 mcic = MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP |
739 MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR |
740 MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC;
741 if (s390_has_feat(S390_FEAT_VECTOR)) {
742 mcic |= MCIC_VB_VR;
743 }
744 if (s390_has_feat(S390_FEAT_GUARDED_STORAGE)) {
745 mcic |= MCIC_VB_GS;
746 }
747 return mcic;
748 }
749
750 static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg)
751 {
752 cpu_reset(cs);
753 }
754
755 static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg)
756 {
757 S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
758
759 scc->reset(cs, S390_CPU_RESET_NORMAL);
760 }
761
762 static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg)
763 {
764 S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
765
766 scc->reset(cs, S390_CPU_RESET_INITIAL);
767 }
768
769 static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg)
770 {
771 S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
772
773 scc->load_normal(cs);
774 }
775
776
777 /* cpu.c */
778 void s390_crypto_reset(void);
779 int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit);
780 void s390_set_max_pagesize(uint64_t pagesize, Error **errp);
781 void s390_cmma_reset(void);
782 void s390_enable_css_support(S390CPU *cpu);
783 void s390_do_cpu_set_diag318(CPUState *cs, run_on_cpu_data arg);
784 int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id,
785 int vq, bool assign);
786 #ifndef CONFIG_USER_ONLY
787 unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu);
788 #else
789 static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu)
790 {
791 return 0;
792 }
793 #endif /* CONFIG_USER_ONLY */
794 static inline uint8_t s390_cpu_get_state(S390CPU *cpu)
795 {
796 return cpu->env.cpu_state;
797 }
798
799
800 /* cpu_models.c */
801 void s390_cpu_list(void);
802 #define cpu_list s390_cpu_list
803 void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga,
804 const S390FeatInit feat_init);
805
806
807 /* helper.c */
808 #define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU
809 #define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX)
810 #define CPU_RESOLVING_TYPE TYPE_S390_CPU
811
812 /* you can call this signal handler from your SIGBUS and SIGSEGV
813 signal handlers to inform the virtual CPU of exceptions. non zero
814 is returned if the signal was handled by the virtual CPU. */
815 int cpu_s390x_signal_handler(int host_signum, void *pinfo, void *puc);
816 #define cpu_signal_handler cpu_s390x_signal_handler
817
818
819 /* interrupt.c */
820 #define RA_IGNORED 0
821 void s390_program_interrupt(CPUS390XState *env, uint32_t code, uintptr_t ra);
822 /* service interrupts are floating therefore we must not pass an cpustate */
823 void s390_sclp_extint(uint32_t parm);
824
825 /* mmu_helper.c */
826 int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf,
827 int len, bool is_write);
828 #define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \
829 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false)
830 #define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \
831 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true)
832 #define s390_cpu_virt_mem_check_read(cpu, laddr, ar, len) \
833 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, false)
834 #define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \
835 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true)
836 void s390_cpu_virt_mem_handle_exc(S390CPU *cpu, uintptr_t ra);
837 int s390_cpu_pv_mem_rw(S390CPU *cpu, unsigned int offset, void *hostbuf,
838 int len, bool is_write);
839 #define s390_cpu_pv_mem_read(cpu, offset, dest, len) \
840 s390_cpu_pv_mem_rw(cpu, offset, dest, len, false)
841 #define s390_cpu_pv_mem_write(cpu, offset, dest, len) \
842 s390_cpu_pv_mem_rw(cpu, offset, dest, len, true)
843
844 /* sigp.c */
845 int s390_cpu_restart(S390CPU *cpu);
846 void s390_init_sigp(void);
847
848
849 /* outside of target/s390x/ */
850 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
851
852 typedef CPUS390XState CPUArchState;
853 typedef S390CPU ArchCPU;
854
855 #include "exec/cpu-all.h"
856
857 #endif