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s390x/kvm: migrate vcpu interrupt state
[qemu.git] / target-s390x / cpu.h
CommitLineData
10ec5117
AG		 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 *
ccb084d3
CB		 16 * Contributions after 2012-10-29 are licensed under the terms of the
17 * GNU GPL, version 2 or (at your option) any later version.
18 *
19 * You should have received a copy of the GNU (Lesser) General Public
70539e18 20 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
10ec5117
AG		 21 */
22#ifndef CPU_S390X_H
23#define CPU_S390X_H
45133b74
SW		 24
25#include "config.h"
26#include "qemu-common.h"
10ec5117
AG		 27
28#define TARGET_LONG_BITS 64
29
30#define ELF_MACHINE EM_S390
4ab23a91 31#define ELF_MACHINE_UNAME "S390X"
10ec5117 32
9349b4f9 33#define CPUArchState struct CPUS390XState
10ec5117 34
022c62cb 35#include "exec/cpu-defs.h"
bcec36ea
AG		 36#define TARGET_PAGE_BITS 12
37
5b23fd03 38#define TARGET_PHYS_ADDR_SPACE_BITS 64
bcec36ea
AG		 39#define TARGET_VIRT_ADDR_SPACE_BITS 64
40
022c62cb 41#include "exec/cpu-all.h"
10ec5117 42
6b4c305c 43#include "fpu/softfloat.h"
10ec5117 44
bcec36ea 45#define NB_MMU_MODES 3
10ec5117 46
bcec36ea
AG		 47#define MMU_MODE0_SUFFIX _primary
48#define MMU_MODE1_SUFFIX _secondary
49#define MMU_MODE2_SUFFIX _home
50
51#define MMU_USER_IDX 1
52
53#define MAX_EXT_QUEUE 16
5d69c547
CH		 54#define MAX_IO_QUEUE 16
55#define MAX_MCHK_QUEUE 16
56
57#define PSW_MCHK_MASK 0x0004000000000000
58#define PSW_IO_MASK 0x0200000000000000
bcec36ea
AG		 59
60typedef struct PSW {
61 uint64_t mask;
62 uint64_t addr;
63} PSW;
64
65typedef struct ExtQueue {
66 uint32_t code;
67 uint32_t param;
68 uint32_t param64;
69} ExtQueue;
10ec5117 70
5d69c547
CH		 71typedef struct IOIntQueue {
72 uint16_t id;
73 uint16_t nr;
74 uint32_t parm;
75 uint32_t word;
76} IOIntQueue;
77
78typedef struct MchkQueue {
79 uint16_t type;
80} MchkQueue;
81
10ec5117 82typedef struct CPUS390XState {
1ac5889f
RH		 83 uint64_t regs[16]; /* GP registers */
84 CPU_DoubleU fregs[16]; /* FP registers */
85 uint32_t aregs[16]; /* access registers */
10ec5117 86
1ac5889f
RH		 87 uint32_t fpc; /* floating-point control register */
88 uint32_t cc_op;
10ec5117 89
10ec5117
AG		 90 float_status fpu_status; /* passed to softfloat lib */
91
1ac5889f
RH		 92 /* The low part of a 128-bit return, or remainder of a divide. */
93 uint64_t retxl;
94
bcec36ea 95 PSW psw;
10ec5117 96
bcec36ea
AG		 97 uint64_t cc_src;
98 uint64_t cc_dst;
99 uint64_t cc_vr;
10ec5117
AG		 100
101 uint64_t __excp_addr;
bcec36ea
AG		 102 uint64_t psa;
103
104 uint32_t int_pgm_code;
d5a103cd 105 uint32_t int_pgm_ilen;
bcec36ea
AG		 106
107 uint32_t int_svc_code;
d5a103cd 108 uint32_t int_svc_ilen;
bcec36ea
AG		 109
110 uint64_t cregs[16]; /* control registers */
111
bcec36ea 112 ExtQueue ext_queue[MAX_EXT_QUEUE];
5d69c547
CH		 113 IOIntQueue io_queue[MAX_IO_QUEUE][8];
114 MchkQueue mchk_queue[MAX_MCHK_QUEUE];
bcec36ea 115
5d69c547 116 int pending_int;
4e836781 117 int ext_index;
5d69c547
CH		 118 int io_index[8];
119 int mchk_index;
120
121 uint64_t ckc;
122 uint64_t cputm;
123 uint32_t todpr;
4e836781 124
819bd309
DD		 125 uint64_t pfault_token;
126 uint64_t pfault_compare;
127 uint64_t pfault_select;
128
44b0c0bb
CB		 129 uint64_t gbea;
130 uint64_t pp;
131
4e836781
AG		 132 CPU_COMMON
133
bcec36ea
AG		 134 /* reset does memset(0) up to here */
135
7f745b31
RH		 136 uint32_t cpu_num;
137 uint32_t machine_type;
138
bcec36ea
AG		 139 uint8_t *storage_keys;
140
141 uint64_t tod_offset;
142 uint64_t tod_basetime;
143 QEMUTimer *tod_timer;
144
145 QEMUTimer *cpu_timer;
75973bfe
DH		 146
147 /*
148 * The cpu state represents the logical state of a cpu. In contrast to other
149 * architectures, there is a difference between a halt and a stop on s390.
150 * If all cpus are either stopped (including check stop) or in the disabled
151 * wait state, the vm can be shut down.
152 */
153#define CPU_STATE_UNINITIALIZED 0x00
154#define CPU_STATE_STOPPED 0x01
155#define CPU_STATE_CHECK_STOP 0x02
156#define CPU_STATE_OPERATING 0x03
157#define CPU_STATE_LOAD 0x04
158 uint8_t cpu_state;
159
18ff9494
DH		 160 /* currently processed sigp order */
161 uint8_t sigp_order;
162
10ec5117
AG		 163} CPUS390XState;
164
564b863d 165#include "cpu-qom.h"
3d0a615f 166#include <sysemu/kvm.h>
564b863d 167
7b18aad5
CH		 168/* distinguish between 24 bit and 31 bit addressing */
169#define HIGH_ORDER_BIT 0x80000000
170
bcec36ea
AG		 171/* Interrupt Codes */
172/* Program Interrupts */
173#define PGM_OPERATION 0x0001
174#define PGM_PRIVILEGED 0x0002
175#define PGM_EXECUTE 0x0003
176#define PGM_PROTECTION 0x0004
177#define PGM_ADDRESSING 0x0005
178#define PGM_SPECIFICATION 0x0006
179#define PGM_DATA 0x0007
180#define PGM_FIXPT_OVERFLOW 0x0008
181#define PGM_FIXPT_DIVIDE 0x0009
182#define PGM_DEC_OVERFLOW 0x000a
183#define PGM_DEC_DIVIDE 0x000b
184#define PGM_HFP_EXP_OVERFLOW 0x000c
185#define PGM_HFP_EXP_UNDERFLOW 0x000d
186#define PGM_HFP_SIGNIFICANCE 0x000e
187#define PGM_HFP_DIVIDE 0x000f
188#define PGM_SEGMENT_TRANS 0x0010
189#define PGM_PAGE_TRANS 0x0011
190#define PGM_TRANS_SPEC 0x0012
191#define PGM_SPECIAL_OP 0x0013
192#define PGM_OPERAND 0x0015
193#define PGM_TRACE_TABLE 0x0016
194#define PGM_SPACE_SWITCH 0x001c
195#define PGM_HFP_SQRT 0x001d
196#define PGM_PC_TRANS_SPEC 0x001f
197#define PGM_AFX_TRANS 0x0020
198#define PGM_ASX_TRANS 0x0021
199#define PGM_LX_TRANS 0x0022
200#define PGM_EX_TRANS 0x0023
201#define PGM_PRIM_AUTH 0x0024
202#define PGM_SEC_AUTH 0x0025
203#define PGM_ALET_SPEC 0x0028
204#define PGM_ALEN_SPEC 0x0029
205#define PGM_ALE_SEQ 0x002a
206#define PGM_ASTE_VALID 0x002b
207#define PGM_ASTE_SEQ 0x002c
208#define PGM_EXT_AUTH 0x002d
209#define PGM_STACK_FULL 0x0030
210#define PGM_STACK_EMPTY 0x0031
211#define PGM_STACK_SPEC 0x0032
212#define PGM_STACK_TYPE 0x0033
213#define PGM_STACK_OP 0x0034
214#define PGM_ASCE_TYPE 0x0038
215#define PGM_REG_FIRST_TRANS 0x0039
216#define PGM_REG_SEC_TRANS 0x003a
217#define PGM_REG_THIRD_TRANS 0x003b
218#define PGM_MONITOR 0x0040
219#define PGM_PER 0x0080
220#define PGM_CRYPTO 0x0119
221
222/* External Interrupts */
223#define EXT_INTERRUPT_KEY 0x0040
224#define EXT_CLOCK_COMP 0x1004
225#define EXT_CPU_TIMER 0x1005
226#define EXT_MALFUNCTION 0x1200
227#define EXT_EMERGENCY 0x1201
228#define EXT_EXTERNAL_CALL 0x1202
229#define EXT_ETR 0x1406
230#define EXT_SERVICE 0x2401
231#define EXT_VIRTIO 0x2603
232
233/* PSW defines */
234#undef PSW_MASK_PER
235#undef PSW_MASK_DAT
236#undef PSW_MASK_IO
237#undef PSW_MASK_EXT
238#undef PSW_MASK_KEY
239#undef PSW_SHIFT_KEY
240#undef PSW_MASK_MCHECK
241#undef PSW_MASK_WAIT
242#undef PSW_MASK_PSTATE
243#undef PSW_MASK_ASC
244#undef PSW_MASK_CC
245#undef PSW_MASK_PM
246#undef PSW_MASK_64
29c6157c
CB		 247#undef PSW_MASK_32
248#undef PSW_MASK_ESA_ADDR
bcec36ea
AG		 249
250#define PSW_MASK_PER 0x4000000000000000ULL
251#define PSW_MASK_DAT 0x0400000000000000ULL
252#define PSW_MASK_IO 0x0200000000000000ULL
253#define PSW_MASK_EXT 0x0100000000000000ULL
254#define PSW_MASK_KEY 0x00F0000000000000ULL
255#define PSW_SHIFT_KEY 56
256#define PSW_MASK_MCHECK 0x0004000000000000ULL
257#define PSW_MASK_WAIT 0x0002000000000000ULL
258#define PSW_MASK_PSTATE 0x0001000000000000ULL
259#define PSW_MASK_ASC 0x0000C00000000000ULL
260#define PSW_MASK_CC 0x0000300000000000ULL
261#define PSW_MASK_PM 0x00000F0000000000ULL
262#define PSW_MASK_64 0x0000000100000000ULL
263#define PSW_MASK_32 0x0000000080000000ULL
29c6157c 264#define PSW_MASK_ESA_ADDR 0x000000007fffffffULL
bcec36ea
AG		 265
266#undef PSW_ASC_PRIMARY
267#undef PSW_ASC_ACCREG
268#undef PSW_ASC_SECONDARY
269#undef PSW_ASC_HOME
270
271#define PSW_ASC_PRIMARY 0x0000000000000000ULL
272#define PSW_ASC_ACCREG 0x0000400000000000ULL
273#define PSW_ASC_SECONDARY 0x0000800000000000ULL
274#define PSW_ASC_HOME 0x0000C00000000000ULL
275
276/* tb flags */
277
278#define FLAG_MASK_PER (PSW_MASK_PER >> 32)
279#define FLAG_MASK_DAT (PSW_MASK_DAT >> 32)
280#define FLAG_MASK_IO (PSW_MASK_IO >> 32)
281#define FLAG_MASK_EXT (PSW_MASK_EXT >> 32)
282#define FLAG_MASK_KEY (PSW_MASK_KEY >> 32)
283#define FLAG_MASK_MCHECK (PSW_MASK_MCHECK >> 32)
284#define FLAG_MASK_WAIT (PSW_MASK_WAIT >> 32)
285#define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> 32)
286#define FLAG_MASK_ASC (PSW_MASK_ASC >> 32)
287#define FLAG_MASK_CC (PSW_MASK_CC >> 32)
288#define FLAG_MASK_PM (PSW_MASK_PM >> 32)
289#define FLAG_MASK_64 (PSW_MASK_64 >> 32)
290#define FLAG_MASK_32 0x00001000
291
c4400206 292/* Control register 0 bits */
c3edd628 293#define CR0_LOWPROT 0x0000000010000000ULL
c4400206
TH		 294#define CR0_EDAT 0x0000000000800000ULL
295
a4e3ad19 296static inline int cpu_mmu_index (CPUS390XState *env)
10c339a0 297{
bcec36ea
AG		 298 if (env->psw.mask & PSW_MASK_PSTATE) {
299 return 1;
300 }
301
10c339a0
AG		 302 return 0;
303}
304
a4e3ad19 305static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
bcec36ea
AG		 306 target_ulong *cs_base, int *flags)
307{
308 *pc = env->psw.addr;
309 *cs_base = 0;
310 *flags = ((env->psw.mask >> 32) & ~FLAG_MASK_CC) |
311 ((env->psw.mask & PSW_MASK_32) ? FLAG_MASK_32 : 0);
312}
313
d5a103cd
RH		 314/* While the PoO talks about ILC (a number between 1-3) what is actually
315 stored in LowCore is shifted left one bit (an even between 2-6). As
316 this is the actual length of the insn and therefore more useful, that
317 is what we want to pass around and manipulate. To make sure that we
318 have applied this distinction universally, rename the "ILC" to "ILEN". */
319static inline int get_ilen(uint8_t opc)
bcec36ea
AG		 320{
321 switch (opc >> 6) {
322 case 0:
d5a103cd 323 return 2;
bcec36ea
AG		 324 case 1:
325 case 2:
d5a103cd
RH		 326 return 4;
327 default:
328 return 6;
bcec36ea 329 }
bcec36ea
AG		 330}
331
d5a103cd
RH		 332#ifndef CONFIG_USER_ONLY
333/* In several cases of runtime exceptions, we havn't recorded the true
334 instruction length. Use these codes when raising exceptions in order
335 to re-compute the length by examining the insn in memory. */
336#define ILEN_LATER 0x20
337#define ILEN_LATER_INC 0x21
dfebd7a7 338void trigger_pgm_exception(CPUS390XState *env, uint32_t code, uint32_t ilen);
d5a103cd 339#endif
bcec36ea 340
564b863d 341S390CPU *cpu_s390x_init(const char *cpu_model);
bcec36ea 342void s390x_translate_init(void);
10ec5117 343int cpu_s390x_exec(CPUS390XState *s);
10ec5117
AG		 344
345/* you can call this signal handler from your SIGBUS and SIGSEGV
346 signal handlers to inform the virtual CPU of exceptions. non zero
347 is returned if the signal was handled by the virtual CPU. */
348int cpu_s390x_signal_handler(int host_signum, void *pinfo,
349 void *puc);
7510454e
AF		 350int s390_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
351 int mmu_idx);
10ec5117 352
db1c8f53 353#include "ioinst.h"
52705890 354
3f10341f 355
10c339a0 356#ifndef CONFIG_USER_ONLY
3f10341f
DH		 357void do_restart_interrupt(CPUS390XState *env);
358
6cb1e49d
AY		 359static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb,
360 uint8_t *ar)
7b18aad5
CH		 361{
362 hwaddr addr = 0;
363 uint8_t reg;
364
365 reg = ipb >> 28;
366 if (reg > 0) {
367 addr = env->regs[reg];
368 }
369 addr += (ipb >> 16) & 0xfff;
6cb1e49d
AY		 370 if (ar) {
371 *ar = reg;
372 }
7b18aad5
CH		 373
374 return addr;
375}
376
638129ff
CH		 377/* Base/displacement are at the same locations. */
378#define decode_basedisp_rs decode_basedisp_s
379
85ca3371
DH		 380/* helper functions for run_on_cpu() */
381static inline void s390_do_cpu_reset(void *arg)
382{
383 CPUState *cs = arg;
384 S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
385
386 scc->cpu_reset(cs);
387}
388static inline void s390_do_cpu_full_reset(void *arg)
389{
390 CPUState *cs = arg;
391
392 cpu_reset(cs);
393}
394
8f22e0df
AF		 395void s390x_tod_timer(void *opaque);
396void s390x_cpu_timer(void *opaque);
397
28e942f8 398int s390_virtio_hypercall(CPUS390XState *env);
de13d216 399void s390_virtio_irq(int config_change, uint64_t token);
bcec36ea 400
1f206266 401#ifdef CONFIG_KVM
de13d216
CH		 402void kvm_s390_virtio_irq(int config_change, uint64_t token);
403void kvm_s390_service_interrupt(uint32_t parm);
66ad0893
CH		 404void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq);
405void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq);
bbd8bb8e 406int kvm_s390_inject_flic(struct kvm_s390_irq *irq);
801cdd35 407void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code);
6cb1e49d
AY		 408int kvm_s390_mem_op(S390CPU *cpu, vaddr addr, uint8_t ar, void *hostbuf,
409 int len, bool is_write);
3f9e59bb
JH		 410int kvm_s390_get_clock(uint8_t *tod_high, uint64_t *tod_clock);
411int kvm_s390_set_clock(uint8_t *tod_high, uint64_t *tod_clock);
1f206266 412#else
de13d216 413static inline void kvm_s390_virtio_irq(int config_change, uint64_t token)
1f206266
AG		 414{
415}
de13d216 416static inline void kvm_s390_service_interrupt(uint32_t parm)
79afc36d
CH		 417{
418}
3f9e59bb
JH		 419static inline int kvm_s390_get_clock(uint8_t *tod_high, uint64_t *tod_low)
420{
421 return -ENOSYS;
422}
423static inline int kvm_s390_set_clock(uint8_t *tod_high, uint64_t *tod_low)
424{
425 return -ENOSYS;
426}
6cb1e49d
AY		 427static inline int kvm_s390_mem_op(S390CPU *cpu, vaddr addr, uint8_t ar,
428 void *hostbuf, int len, bool is_write)
a9bcd1b8
TH		 429{
430 return -ENOSYS;
431}
801cdd35
TH		 432static inline void kvm_s390_access_exception(S390CPU *cpu, uint16_t code,
433 uint64_t te_code)
434{
435}
1f206266 436#endif
3f9e59bb
JH		 437
438static inline int s390_get_clock(uint8_t *tod_high, uint64_t *tod_low)
439{
440 if (kvm_enabled()) {
441 return kvm_s390_get_clock(tod_high, tod_low);
442 }
443 /* Fixme TCG */
444 *tod_high = 0;
445 *tod_low = 0;
446 return 0;
447}
448
449static inline int s390_set_clock(uint8_t *tod_high, uint64_t *tod_low)
450{
451 if (kvm_enabled()) {
452 return kvm_s390_set_clock(tod_high, tod_low);
453 }
454 /* Fixme TCG */
455 return 0;
456}
457
45fa769b 458S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
eb24f7c6
DH		 459unsigned int s390_cpu_halt(S390CPU *cpu);
460void s390_cpu_unhalt(S390CPU *cpu);
461unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu);
18ff9494
DH		 462static inline uint8_t s390_cpu_get_state(S390CPU *cpu)
463{
464 return cpu->env.cpu_state;
465}
bcec36ea 466
3f9e59bb
JH		 467void gtod_save(QEMUFile *f, void *opaque);
468int gtod_load(QEMUFile *f, void *opaque, int version_id);
469
000a1a38
CB		 470/* service interrupts are floating therefore we must not pass an cpustate */
471void s390_sclp_extint(uint32_t parm);
472
d1ff903c 473/* from s390-virtio-bus */
a8170e5e 474extern const hwaddr virtio_size;
d1ff903c 475
ef81522b 476#else
eb24f7c6
DH		 477static inline unsigned int s390_cpu_halt(S390CPU *cpu)
478{
479 return 0;
480}
481
482static inline void s390_cpu_unhalt(S390CPU *cpu)
ef81522b
AG		 483{
484}
485
eb24f7c6 486static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu)
ef81522b
AG		 487{
488 return 0;
489}
10c339a0 490#endif
bcec36ea
AG		 491void cpu_lock(void);
492void cpu_unlock(void);
10c339a0 493
7b18aad5
CH		 494typedef struct SubchDev SubchDev;
495
df1fe5bb 496#ifndef CONFIG_USER_ONLY
4e872a3f 497extern void io_subsystem_reset(void);
df1fe5bb
CH		 498SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
499 uint16_t schid);
500bool css_subch_visible(SubchDev *sch);
501void css_conditional_io_interrupt(SubchDev *sch);
502int css_do_stsch(SubchDev *sch, SCHIB *schib);
38dd7cc7 503bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid);
bffd09cd 504int css_do_msch(SubchDev *sch, const SCHIB *schib);
df1fe5bb
CH		 505int css_do_xsch(SubchDev *sch);
506int css_do_csch(SubchDev *sch);
507int css_do_hsch(SubchDev *sch);
508int css_do_ssch(SubchDev *sch, ORB *orb);
b7b6348a
TH		 509int css_do_tsch_get_irb(SubchDev *sch, IRB *irb, int *irb_len);
510void css_do_tsch_update_subch(SubchDev *sch);
df1fe5bb 511int css_do_stcrw(CRW *crw);
7f74f0aa 512void css_undo_stcrw(CRW *crw);
50c8d9bf 513int css_do_tpi(IOIntCode *int_code, int lowcore);
df1fe5bb
CH		 514int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid, uint8_t l_chpid,
515 int rfmt, void *buf);
516void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo);
517int css_enable_mcsse(void);
518int css_enable_mss(void);
519int css_do_rsch(SubchDev *sch);
520int css_do_rchp(uint8_t cssid, uint8_t chpid);
521bool css_present(uint8_t cssid);
df1fe5bb 522#endif
7b18aad5 523
2994fd96 524#define cpu_init(model) CPU(cpu_s390x_init(model))
10ec5117
AG		 525#define cpu_exec cpu_s390x_exec
526#define cpu_gen_code cpu_s390x_gen_code
bcec36ea 527#define cpu_signal_handler cpu_s390x_signal_handler
10ec5117 528
904e5fd5
VM		 529void s390_cpu_list(FILE *f, fprintf_function cpu_fprintf);
530#define cpu_list s390_cpu_list
531
022c62cb 532#include "exec/exec-all.h"
bcec36ea 533
bcec36ea
AG		 534#define EXCP_EXT 1 /* external interrupt */
535#define EXCP_SVC 2 /* supervisor call (syscall) */
536#define EXCP_PGM 3 /* program interruption */
5d69c547
CH		 537#define EXCP_IO 7 /* I/O interrupt */
538#define EXCP_MCHK 8 /* machine check */
bcec36ea 539
bcec36ea
AG		 540#define INTERRUPT_EXT (1 << 0)
541#define INTERRUPT_TOD (1 << 1)
542#define INTERRUPT_CPUTIMER (1 << 2)
5d69c547
CH		 543#define INTERRUPT_IO (1 << 3)
544#define INTERRUPT_MCHK (1 << 4)
10c339a0
AG		 545
546/* Program Status Word. */
547#define S390_PSWM_REGNUM 0
548#define S390_PSWA_REGNUM 1
549/* General Purpose Registers. */
550#define S390_R0_REGNUM 2
551#define S390_R1_REGNUM 3
552#define S390_R2_REGNUM 4
553#define S390_R3_REGNUM 5
554#define S390_R4_REGNUM 6
555#define S390_R5_REGNUM 7
556#define S390_R6_REGNUM 8
557#define S390_R7_REGNUM 9
558#define S390_R8_REGNUM 10
559#define S390_R9_REGNUM 11
560#define S390_R10_REGNUM 12
561#define S390_R11_REGNUM 13
562#define S390_R12_REGNUM 14
563#define S390_R13_REGNUM 15
564#define S390_R14_REGNUM 16
565#define S390_R15_REGNUM 17
73d510c9
DH		 566/* Total Core Registers. */
567#define S390_NUM_CORE_REGS 18
10c339a0 568
bcec36ea
AG		 569/* CC optimization */
570
571enum cc_op {
572 CC_OP_CONST0 = 0, /* CC is 0 */
573 CC_OP_CONST1, /* CC is 1 */
574 CC_OP_CONST2, /* CC is 2 */
575 CC_OP_CONST3, /* CC is 3 */
576
577 CC_OP_DYNAMIC, /* CC calculation defined by env->cc_op */
578 CC_OP_STATIC, /* CC value is env->cc_op */
579
580 CC_OP_NZ, /* env->cc_dst != 0 */
581 CC_OP_LTGT_32, /* signed less/greater than (32bit) */
582 CC_OP_LTGT_64, /* signed less/greater than (64bit) */
583 CC_OP_LTUGTU_32, /* unsigned less/greater than (32bit) */
584 CC_OP_LTUGTU_64, /* unsigned less/greater than (64bit) */
585 CC_OP_LTGT0_32, /* signed less/greater than 0 (32bit) */
586 CC_OP_LTGT0_64, /* signed less/greater than 0 (64bit) */
587
588 CC_OP_ADD_64, /* overflow on add (64bit) */
589 CC_OP_ADDU_64, /* overflow on unsigned add (64bit) */
4e4bb438 590 CC_OP_ADDC_64, /* overflow on unsigned add-carry (64bit) */
e7d81004
SW		 591 CC_OP_SUB_64, /* overflow on subtraction (64bit) */
592 CC_OP_SUBU_64, /* overflow on unsigned subtraction (64bit) */
4e4bb438 593 CC_OP_SUBB_64, /* overflow on unsigned sub-borrow (64bit) */
bcec36ea
AG		 594 CC_OP_ABS_64, /* sign eval on abs (64bit) */
595 CC_OP_NABS_64, /* sign eval on nabs (64bit) */
596
597 CC_OP_ADD_32, /* overflow on add (32bit) */
598 CC_OP_ADDU_32, /* overflow on unsigned add (32bit) */
4e4bb438 599 CC_OP_ADDC_32, /* overflow on unsigned add-carry (32bit) */
e7d81004
SW		 600 CC_OP_SUB_32, /* overflow on subtraction (32bit) */
601 CC_OP_SUBU_32, /* overflow on unsigned subtraction (32bit) */
4e4bb438 602 CC_OP_SUBB_32, /* overflow on unsigned sub-borrow (32bit) */
bcec36ea
AG		 603 CC_OP_ABS_32, /* sign eval on abs (64bit) */
604 CC_OP_NABS_32, /* sign eval on nabs (64bit) */
605
606 CC_OP_COMP_32, /* complement */
607 CC_OP_COMP_64, /* complement */
608
609 CC_OP_TM_32, /* test under mask (32bit) */
610 CC_OP_TM_64, /* test under mask (64bit) */
611
bcec36ea
AG		 612 CC_OP_NZ_F32, /* FP dst != 0 (32bit) */
613 CC_OP_NZ_F64, /* FP dst != 0 (64bit) */
587626f8 614 CC_OP_NZ_F128, /* FP dst != 0 (128bit) */
bcec36ea
AG		 615
616 CC_OP_ICM, /* insert characters under mask */
cbe24bfa
RH		 617 CC_OP_SLA_32, /* Calculate shift left signed (32bit) */
618 CC_OP_SLA_64, /* Calculate shift left signed (64bit) */
102bf2c6 619 CC_OP_FLOGR, /* find leftmost one */
bcec36ea
AG		 620 CC_OP_MAX
621};
622
623static const char *cc_names[] = {
624 [CC_OP_CONST0] = "CC_OP_CONST0",
625 [CC_OP_CONST1] = "CC_OP_CONST1",
626 [CC_OP_CONST2] = "CC_OP_CONST2",
627 [CC_OP_CONST3] = "CC_OP_CONST3",
628 [CC_OP_DYNAMIC] = "CC_OP_DYNAMIC",
629 [CC_OP_STATIC] = "CC_OP_STATIC",
630 [CC_OP_NZ] = "CC_OP_NZ",
631 [CC_OP_LTGT_32] = "CC_OP_LTGT_32",
632 [CC_OP_LTGT_64] = "CC_OP_LTGT_64",
633 [CC_OP_LTUGTU_32] = "CC_OP_LTUGTU_32",
634 [CC_OP_LTUGTU_64] = "CC_OP_LTUGTU_64",
635 [CC_OP_LTGT0_32] = "CC_OP_LTGT0_32",
636 [CC_OP_LTGT0_64] = "CC_OP_LTGT0_64",
637 [CC_OP_ADD_64] = "CC_OP_ADD_64",
638 [CC_OP_ADDU_64] = "CC_OP_ADDU_64",
4e4bb438 639 [CC_OP_ADDC_64] = "CC_OP_ADDC_64",
bcec36ea
AG		 640 [CC_OP_SUB_64] = "CC_OP_SUB_64",
641 [CC_OP_SUBU_64] = "CC_OP_SUBU_64",
4e4bb438 642 [CC_OP_SUBB_64] = "CC_OP_SUBB_64",
bcec36ea
AG		 643 [CC_OP_ABS_64] = "CC_OP_ABS_64",
644 [CC_OP_NABS_64] = "CC_OP_NABS_64",
645 [CC_OP_ADD_32] = "CC_OP_ADD_32",
646 [CC_OP_ADDU_32] = "CC_OP_ADDU_32",
4e4bb438 647 [CC_OP_ADDC_32] = "CC_OP_ADDC_32",
bcec36ea
AG		 648 [CC_OP_SUB_32] = "CC_OP_SUB_32",
649 [CC_OP_SUBU_32] = "CC_OP_SUBU_32",
4e4bb438 650 [CC_OP_SUBB_32] = "CC_OP_SUBB_32",
bcec36ea
AG		 651 [CC_OP_ABS_32] = "CC_OP_ABS_32",
652 [CC_OP_NABS_32] = "CC_OP_NABS_32",
653 [CC_OP_COMP_32] = "CC_OP_COMP_32",
654 [CC_OP_COMP_64] = "CC_OP_COMP_64",
655 [CC_OP_TM_32] = "CC_OP_TM_32",
656 [CC_OP_TM_64] = "CC_OP_TM_64",
bcec36ea
AG		 657 [CC_OP_NZ_F32] = "CC_OP_NZ_F32",
658 [CC_OP_NZ_F64] = "CC_OP_NZ_F64",
587626f8 659 [CC_OP_NZ_F128] = "CC_OP_NZ_F128",
bcec36ea 660 [CC_OP_ICM] = "CC_OP_ICM",
cbe24bfa
RH		 661 [CC_OP_SLA_32] = "CC_OP_SLA_32",
662 [CC_OP_SLA_64] = "CC_OP_SLA_64",
102bf2c6 663 [CC_OP_FLOGR] = "CC_OP_FLOGR",
bcec36ea
AG		 664};
665
666static inline const char *cc_name(int cc_op)
667{
668 return cc_names[cc_op];
669}
670
3d0a615f
TH		 671static inline void setcc(S390CPU *cpu, uint64_t cc)
672{
673 CPUS390XState *env = &cpu->env;
674
675 env->psw.mask &= ~(3ull << 44);
676 env->psw.mask |= (cc & 3) << 44;
677}
678
bcec36ea
AG		 679typedef struct LowCore
680{
681 /* prefix area: defined by architecture */
682 uint32_t ccw1[2]; /* 0x000 */
683 uint32_t ccw2[4]; /* 0x008 */
684 uint8_t pad1[0x80-0x18]; /* 0x018 */
685 uint32_t ext_params; /* 0x080 */
686 uint16_t cpu_addr; /* 0x084 */
687 uint16_t ext_int_code; /* 0x086 */
d5a103cd 688 uint16_t svc_ilen; /* 0x088 */
bcec36ea 689 uint16_t svc_code; /* 0x08a */
d5a103cd 690 uint16_t pgm_ilen; /* 0x08c */
bcec36ea
AG		 691 uint16_t pgm_code; /* 0x08e */
692 uint32_t data_exc_code; /* 0x090 */
693 uint16_t mon_class_num; /* 0x094 */
694 uint16_t per_perc_atmid; /* 0x096 */
695 uint64_t per_address; /* 0x098 */
696 uint8_t exc_access_id; /* 0x0a0 */
697 uint8_t per_access_id; /* 0x0a1 */
698 uint8_t op_access_id; /* 0x0a2 */
699 uint8_t ar_access_id; /* 0x0a3 */
700 uint8_t pad2[0xA8-0xA4]; /* 0x0a4 */
701 uint64_t trans_exc_code; /* 0x0a8 */
702 uint64_t monitor_code; /* 0x0b0 */
703 uint16_t subchannel_id; /* 0x0b8 */
704 uint16_t subchannel_nr; /* 0x0ba */
705 uint32_t io_int_parm; /* 0x0bc */
706 uint32_t io_int_word; /* 0x0c0 */
707 uint8_t pad3[0xc8-0xc4]; /* 0x0c4 */
708 uint32_t stfl_fac_list; /* 0x0c8 */
709 uint8_t pad4[0xe8-0xcc]; /* 0x0cc */
710 uint32_t mcck_interruption_code[2]; /* 0x0e8 */
711 uint8_t pad5[0xf4-0xf0]; /* 0x0f0 */
712 uint32_t external_damage_code; /* 0x0f4 */
713 uint64_t failing_storage_address; /* 0x0f8 */
714 uint8_t pad6[0x120-0x100]; /* 0x100 */
715 PSW restart_old_psw; /* 0x120 */
716 PSW external_old_psw; /* 0x130 */
717 PSW svc_old_psw; /* 0x140 */
718 PSW program_old_psw; /* 0x150 */
719 PSW mcck_old_psw; /* 0x160 */
720 PSW io_old_psw; /* 0x170 */
721 uint8_t pad7[0x1a0-0x180]; /* 0x180 */
3f10341f 722 PSW restart_new_psw; /* 0x1a0 */
bcec36ea
AG		 723 PSW external_new_psw; /* 0x1b0 */
724 PSW svc_new_psw; /* 0x1c0 */
725 PSW program_new_psw; /* 0x1d0 */
726 PSW mcck_new_psw; /* 0x1e0 */
727 PSW io_new_psw; /* 0x1f0 */
728 PSW return_psw; /* 0x200 */
729 uint8_t irb[64]; /* 0x210 */
730 uint64_t sync_enter_timer; /* 0x250 */
731 uint64_t async_enter_timer; /* 0x258 */
732 uint64_t exit_timer; /* 0x260 */
733 uint64_t last_update_timer; /* 0x268 */
734 uint64_t user_timer; /* 0x270 */
735 uint64_t system_timer; /* 0x278 */
736 uint64_t last_update_clock; /* 0x280 */
737 uint64_t steal_clock; /* 0x288 */
738 PSW return_mcck_psw; /* 0x290 */
739 uint8_t pad8[0xc00-0x2a0]; /* 0x2a0 */
740 /* System info area */
741 uint64_t save_area[16]; /* 0xc00 */
742 uint8_t pad9[0xd40-0xc80]; /* 0xc80 */
743 uint64_t kernel_stack; /* 0xd40 */
744 uint64_t thread_info; /* 0xd48 */
745 uint64_t async_stack; /* 0xd50 */
746 uint64_t kernel_asce; /* 0xd58 */
747 uint64_t user_asce; /* 0xd60 */
748 uint64_t panic_stack; /* 0xd68 */
749 uint64_t user_exec_asce; /* 0xd70 */
750 uint8_t pad10[0xdc0-0xd78]; /* 0xd78 */
751
752 /* SMP info area: defined by DJB */
753 uint64_t clock_comparator; /* 0xdc0 */
754 uint64_t ext_call_fast; /* 0xdc8 */
755 uint64_t percpu_offset; /* 0xdd0 */
756 uint64_t current_task; /* 0xdd8 */
757 uint32_t softirq_pending; /* 0xde0 */
758 uint32_t pad_0x0de4; /* 0xde4 */
759 uint64_t int_clock; /* 0xde8 */
760 uint8_t pad12[0xe00-0xdf0]; /* 0xdf0 */
761
762 /* 0xe00 is used as indicator for dump tools */
763 /* whether the kernel died with panic() or not */
764 uint32_t panic_magic; /* 0xe00 */
765
766 uint8_t pad13[0x11b8-0xe04]; /* 0xe04 */
767
768 /* 64 bit extparam used for pfault, diag 250 etc */
769 uint64_t ext_params2; /* 0x11B8 */
770
771 uint8_t pad14[0x1200-0x11C0]; /* 0x11C0 */
772
773 /* System info area */
774
775 uint64_t floating_pt_save_area[16]; /* 0x1200 */
776 uint64_t gpregs_save_area[16]; /* 0x1280 */
777 uint32_t st_status_fixed_logout[4]; /* 0x1300 */
778 uint8_t pad15[0x1318-0x1310]; /* 0x1310 */
779 uint32_t prefixreg_save_area; /* 0x1318 */
780 uint32_t fpt_creg_save_area; /* 0x131c */
781 uint8_t pad16[0x1324-0x1320]; /* 0x1320 */
782 uint32_t tod_progreg_save_area; /* 0x1324 */
783 uint32_t cpu_timer_save_area[2]; /* 0x1328 */
784 uint32_t clock_comp_save_area[2]; /* 0x1330 */
785 uint8_t pad17[0x1340-0x1338]; /* 0x1338 */
786 uint32_t access_regs_save_area[16]; /* 0x1340 */
787 uint64_t cregs_save_area[16]; /* 0x1380 */
788
789 /* align to the top of the prefix area */
790
791 uint8_t pad18[0x2000-0x1400]; /* 0x1400 */
541dc0d4 792} QEMU_PACKED LowCore;
bcec36ea
AG		 793
794/* STSI */
795#define STSI_LEVEL_MASK 0x00000000f0000000ULL
796#define STSI_LEVEL_CURRENT 0x0000000000000000ULL
797#define STSI_LEVEL_1 0x0000000010000000ULL
798#define STSI_LEVEL_2 0x0000000020000000ULL
799#define STSI_LEVEL_3 0x0000000030000000ULL
800#define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL
801#define STSI_R0_SEL1_MASK 0x00000000000000ffULL
802#define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL
803#define STSI_R1_SEL2_MASK 0x000000000000ffffULL
804
805/* Basic Machine Configuration */
806struct sysib_111 {
807 uint32_t res1[8];
808 uint8_t manuf[16];
809 uint8_t type[4];
810 uint8_t res2[12];
811 uint8_t model[16];
812 uint8_t sequence[16];
813 uint8_t plant[4];
814 uint8_t res3[156];
815};
816
817/* Basic Machine CPU */
818struct sysib_121 {
819 uint32_t res1[80];
820 uint8_t sequence[16];
821 uint8_t plant[4];
822 uint8_t res2[2];
823 uint16_t cpu_addr;
824 uint8_t res3[152];
825};
826
827/* Basic Machine CPUs */
828struct sysib_122 {
829 uint8_t res1[32];
830 uint32_t capability;
831 uint16_t total_cpus;
832 uint16_t active_cpus;
833 uint16_t standby_cpus;
834 uint16_t reserved_cpus;
835 uint16_t adjustments[2026];
836};
837
838/* LPAR CPU */
839struct sysib_221 {
840 uint32_t res1[80];
841 uint8_t sequence[16];
842 uint8_t plant[4];
843 uint16_t cpu_id;
844 uint16_t cpu_addr;
845 uint8_t res3[152];
846};
847
848/* LPAR CPUs */
849struct sysib_222 {
850 uint32_t res1[32];
851 uint16_t lpar_num;
852 uint8_t res2;
853 uint8_t lcpuc;
854 uint16_t total_cpus;
855 uint16_t conf_cpus;
856 uint16_t standby_cpus;
857 uint16_t reserved_cpus;
858 uint8_t name[8];
859 uint32_t caf;
860 uint8_t res3[16];
861 uint16_t dedicated_cpus;
862 uint16_t shared_cpus;
863 uint8_t res4[180];
864};
865
866/* VM CPUs */
867struct sysib_322 {
868 uint8_t res1[31];
869 uint8_t count;
870 struct {
871 uint8_t res2[4];
872 uint16_t total_cpus;
873 uint16_t conf_cpus;
874 uint16_t standby_cpus;
875 uint16_t reserved_cpus;
876 uint8_t name[8];
877 uint32_t caf;
878 uint8_t cpi[16];
f07177a5
ET		 879 uint8_t res5[3];
880 uint8_t ext_name_encoding;
881 uint32_t res3;
882 uint8_t uuid[16];
bcec36ea 883 } vm[8];
f07177a5
ET		 884 uint8_t res4[1504];
885 uint8_t ext_names[8][256];
bcec36ea
AG		 886};
887
888/* MMU defines */
889#define _ASCE_ORIGIN ~0xfffULL /* segment table origin */
890#define _ASCE_SUBSPACE 0x200 /* subspace group control */
891#define _ASCE_PRIVATE_SPACE 0x100 /* private space control */
892#define _ASCE_ALT_EVENT 0x80 /* storage alteration event control */
893#define _ASCE_SPACE_SWITCH 0x40 /* space switch event */
894#define _ASCE_REAL_SPACE 0x20 /* real space control */
895#define _ASCE_TYPE_MASK 0x0c /* asce table type mask */
896#define _ASCE_TYPE_REGION1 0x0c /* region first table type */
897#define _ASCE_TYPE_REGION2 0x08 /* region second table type */
898#define _ASCE_TYPE_REGION3 0x04 /* region third table type */
899#define _ASCE_TYPE_SEGMENT 0x00 /* segment table type */
900#define _ASCE_TABLE_LENGTH 0x03 /* region table length */
901
902#define _REGION_ENTRY_ORIGIN ~0xfffULL /* region/segment table origin */
43d49b01 903#define _REGION_ENTRY_RO 0x200 /* region/segment protection bit */
5d180439 904#define _REGION_ENTRY_TF 0xc0 /* region/segment table offset */
bcec36ea
AG		 905#define _REGION_ENTRY_INV 0x20 /* invalid region table entry */
906#define _REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */
907#define _REGION_ENTRY_TYPE_R1 0x0c /* region first table type */
908#define _REGION_ENTRY_TYPE_R2 0x08 /* region second table type */
909#define _REGION_ENTRY_TYPE_R3 0x04 /* region third table type */
910#define _REGION_ENTRY_LENGTH 0x03 /* region third length */
911
912#define _SEGMENT_ENTRY_ORIGIN ~0x7ffULL /* segment table origin */
c4400206 913#define _SEGMENT_ENTRY_FC 0x400 /* format control */
bcec36ea
AG		 914#define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */
915#define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */
916
917#define _PAGE_RO 0x200 /* HW read-only bit */
918#define _PAGE_INVALID 0x400 /* HW invalid bit */
b4ecbf80 919#define _PAGE_RES0 0x800 /* bit must be zero */
bcec36ea 920
b9959138
AG		 921#define SK_C (0x1 << 1)
922#define SK_R (0x1 << 2)
923#define SK_F (0x1 << 3)
924#define SK_ACC_MASK (0xf << 4)
bcec36ea 925
5172b780 926/* SIGP order codes */
bcec36ea
AG		 927#define SIGP_SENSE 0x01
928#define SIGP_EXTERNAL_CALL 0x02
929#define SIGP_EMERGENCY 0x03
930#define SIGP_START 0x04
931#define SIGP_STOP 0x05
932#define SIGP_RESTART 0x06
933#define SIGP_STOP_STORE_STATUS 0x09
934#define SIGP_INITIAL_CPU_RESET 0x0b
935#define SIGP_CPU_RESET 0x0c
936#define SIGP_SET_PREFIX 0x0d
937#define SIGP_STORE_STATUS_ADDR 0x0e
938#define SIGP_SET_ARCH 0x12
939
5172b780
DH		 940/* SIGP condition codes */
941#define SIGP_CC_ORDER_CODE_ACCEPTED 0
942#define SIGP_CC_STATUS_STORED 1
943#define SIGP_CC_BUSY 2
944#define SIGP_CC_NOT_OPERATIONAL 3
945
946/* SIGP status bits */
bcec36ea
AG		 947#define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL
948#define SIGP_STAT_INCORRECT_STATE 0x00000200UL
949#define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
950#define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL
951#define SIGP_STAT_STOPPED 0x00000040UL
952#define SIGP_STAT_OPERATOR_INTERV 0x00000020UL
953#define SIGP_STAT_CHECK_STOP 0x00000010UL
954#define SIGP_STAT_INOPERATIVE 0x00000004UL
955#define SIGP_STAT_INVALID_ORDER 0x00000002UL
956#define SIGP_STAT_RECEIVER_CHECK 0x00000001UL
957
18ff9494
DH		 958/* SIGP SET ARCHITECTURE modes */
959#define SIGP_MODE_ESA_S390 0
960#define SIGP_MODE_Z_ARCH_TRANS_ALL_PSW 1
961#define SIGP_MODE_Z_ARCH_TRANS_CUR_PSW 2
962
a4e3ad19
AF		 963void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr);
964int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc,
e3e09d87 965 target_ulong *raddr, int *flags, bool exc);
6e252802 966int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code);
a4e3ad19 967uint32_t calc_cc(CPUS390XState *env, uint32_t cc_op, uint64_t src, uint64_t dst,
bcec36ea
AG		 968 uint64_t vr);
969
6cb1e49d
AY		 970int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf,
971 int len, bool is_write);
c3edd628 972
6cb1e49d
AY		 973#define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \
974 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false)
975#define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \
976 s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true)
977#define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \
978 s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true)
c3edd628 979
bcec36ea
AG		 980/* The value of the TOD clock for 1.1.1970. */
981#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
982
983/* Converts ns to s390's clock format */
984static inline uint64_t time2tod(uint64_t ns) {
985 return (ns << 9) / 125;
986}
987
f9466733 988static inline void cpu_inject_ext(S390CPU *cpu, uint32_t code, uint32_t param,
bcec36ea
AG		 989 uint64_t param64)
990{
f9466733
AF		 991 CPUS390XState *env = &cpu->env;
992
bcec36ea
AG		 993 if (env->ext_index == MAX_EXT_QUEUE - 1) {
994 /* ugh - can't queue anymore. Let's drop. */
995 return;
996 }
997
998 env->ext_index++;
999 assert(env->ext_index < MAX_EXT_QUEUE);
1000
1001 env->ext_queue[env->ext_index].code = code;
1002 env->ext_queue[env->ext_index].param = param;
1003 env->ext_queue[env->ext_index].param64 = param64;
1004
1005 env->pending_int |= INTERRUPT_EXT;
c3affe56 1006 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
bcec36ea 1007}
10c339a0 1008
f9466733 1009static inline void cpu_inject_io(S390CPU *cpu, uint16_t subchannel_id,
5d69c547
CH		 1010 uint16_t subchannel_number,
1011 uint32_t io_int_parm, uint32_t io_int_word)
1012{
f9466733 1013 CPUS390XState *env = &cpu->env;
91b0a8f3 1014 int isc = IO_INT_WORD_ISC(io_int_word);
5d69c547
CH		 1015
1016 if (env->io_index[isc] == MAX_IO_QUEUE - 1) {
1017 /* ugh - can't queue anymore. Let's drop. */
1018 return;
1019 }
1020
1021 env->io_index[isc]++;
1022 assert(env->io_index[isc] < MAX_IO_QUEUE);
1023
1024 env->io_queue[env->io_index[isc]][isc].id = subchannel_id;
1025 env->io_queue[env->io_index[isc]][isc].nr = subchannel_number;
1026 env->io_queue[env->io_index[isc]][isc].parm = io_int_parm;
1027 env->io_queue[env->io_index[isc]][isc].word = io_int_word;
1028
1029 env->pending_int |= INTERRUPT_IO;
c3affe56 1030 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
5d69c547
CH		 1031}
1032
f9466733 1033static inline void cpu_inject_crw_mchk(S390CPU *cpu)
5d69c547 1034{
f9466733
AF		 1035 CPUS390XState *env = &cpu->env;
1036
5d69c547
CH		 1037 if (env->mchk_index == MAX_MCHK_QUEUE - 1) {
1038 /* ugh - can't queue anymore. Let's drop. */
1039 return;
1040 }
1041
1042 env->mchk_index++;
1043 assert(env->mchk_index < MAX_MCHK_QUEUE);
1044
1045 env->mchk_queue[env->mchk_index].type = 1;
1046
1047 env->pending_int |= INTERRUPT_MCHK;
c3affe56 1048 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
5d69c547
CH		 1049}
1050
b6fe0124
MR		 1051/* from s390-virtio-ccw */
1052#define MEM_SECTION_SIZE 0x10000000UL
1def6656 1053#define MAX_AVAIL_SLOTS 32
b6fe0124 1054
e72ca652 1055/* fpu_helper.c */
e72ca652
BS		 1056uint32_t set_cc_nz_f32(float32 v);
1057uint32_t set_cc_nz_f64(float64 v);
587626f8 1058uint32_t set_cc_nz_f128(float128 v);
e72ca652 1059
aea1e885 1060/* misc_helper.c */
268846ba
ED		 1061#ifndef CONFIG_USER_ONLY
1062void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3);
1063#endif
d5a103cd 1064void program_interrupt(CPUS390XState *env, uint32_t code, int ilen);
b4e2bd35
RH		 1065void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp,
1066 uintptr_t retaddr);
a78b0504 1067
09b99878 1068#ifdef CONFIG_KVM
de13d216 1069void kvm_s390_io_interrupt(uint16_t subchannel_id,
09b99878
CH		 1070 uint16_t subchannel_nr, uint32_t io_int_parm,
1071 uint32_t io_int_word);
de13d216 1072void kvm_s390_crw_mchk(void);
09b99878 1073void kvm_s390_enable_css_support(S390CPU *cpu);
cc3ac9c4
CH		 1074int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch,
1075 int vq, bool assign);
7f7f9752 1076int kvm_s390_cpu_restart(S390CPU *cpu);
1def6656 1077int kvm_s390_get_memslot_count(KVMState *s);
4cb88c3c 1078void kvm_s390_clear_cmma_callback(void *opaque);
c9e659c9 1079int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state);
99607144 1080void kvm_s390_reset_vcpu(S390CPU *cpu);
a310b283 1081int kvm_s390_set_mem_limit(KVMState *s, uint64_t new_limit, uint64_t *hw_limit);
3cda44f7
JF		 1082void kvm_s390_vcpu_interrupt_pre_save(S390CPU *cpu);
1083int kvm_s390_vcpu_interrupt_post_load(S390CPU *cpu);
09b99878 1084#else
de13d216 1085static inline void kvm_s390_io_interrupt(uint16_t subchannel_id,
df1fe5bb
CH		 1086 uint16_t subchannel_nr,
1087 uint32_t io_int_parm,
1088 uint32_t io_int_word)
1089{
1090}
de13d216 1091static inline void kvm_s390_crw_mchk(void)
df1fe5bb
CH		 1092{
1093}
09b99878
CH		 1094static inline void kvm_s390_enable_css_support(S390CPU *cpu)
1095{
1096}
cc3ac9c4
CH		 1097static inline int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier,
1098 uint32_t sch, int vq,
b4436a0b
CH		 1099 bool assign)
1100{
1101 return -ENOSYS;
1102}
7f7f9752
ED		 1103static inline int kvm_s390_cpu_restart(S390CPU *cpu)
1104{
1105 return -ENOSYS;
1106}
4cb88c3c
DD		 1107static inline void kvm_s390_clear_cmma_callback(void *opaque)
1108{
1109}
1def6656
MR		 1110static inline int kvm_s390_get_memslot_count(KVMState *s)
1111{
1112 return MAX_AVAIL_SLOTS;
1113}
c9e659c9
DH		 1114static inline int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state)
1115{
1116 return -ENOSYS;
1117}
99607144
DH		 1118static inline void kvm_s390_reset_vcpu(S390CPU *cpu)
1119{
1120}
a310b283
DD		 1121static inline int kvm_s390_set_mem_limit(KVMState *s, uint64_t new_limit,
1122 uint64_t *hw_limit)
1123{
1124 return 0;
1125}
3cda44f7
JF		 1126static inline void kvm_s390_vcpu_interrupt_pre_save(S390CPU *cpu)
1127{
1128}
1129static inline int kvm_s390_vcpu_interrupt_post_load(S390CPU *cpu)
1130{
1131 return 0;
1132}
09b99878 1133#endif
df1fe5bb 1134
a310b283
DD		 1135static inline int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit)
1136{
1137 if (kvm_enabled()) {
1138 return kvm_s390_set_mem_limit(kvm_state, new_limit, hw_limit);
1139 }
1140 return 0;
1141}
1142
4cb88c3c
DD		 1143static inline void cmma_reset(S390CPU *cpu)
1144{
1145 if (kvm_enabled()) {
1146 CPUState *cs = CPU(cpu);
1147 kvm_s390_clear_cmma_callback(cs->kvm_state);
1148 }
1149}
1150
7f7f9752
ED		 1151static inline int s390_cpu_restart(S390CPU *cpu)
1152{
1153 if (kvm_enabled()) {
1154 return kvm_s390_cpu_restart(cpu);
1155 }
1156 return -ENOSYS;
1157}
1158
1def6656
MR		 1159static inline int s390_get_memslot_count(KVMState *s)
1160{
1161 if (kvm_enabled()) {
1162 return kvm_s390_get_memslot_count(s);
1163 } else {
1164 return MAX_AVAIL_SLOTS;
1165 }
1166}
1167
de13d216
CH		 1168void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
1169 uint32_t io_int_parm, uint32_t io_int_word);
1170void s390_crw_mchk(void);
df1fe5bb 1171
cc3ac9c4
CH		 1172static inline int s390_assign_subch_ioeventfd(EventNotifier *notifier,
1173 uint32_t sch_id, int vq,
b4436a0b
CH		 1174 bool assign)
1175{
1176 if (kvm_enabled()) {
cc3ac9c4 1177 return kvm_s390_assign_subch_ioeventfd(notifier, sch_id, vq, assign);
b4436a0b
CH		 1178 } else {
1179 return -ENOSYS;
1180 }
1181}
1182
10ec5117 1183#endif
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