1 /* SPDX-License-Identifier: GPL-2.0 */
3 * definition for kernel virtual machines on s390
5 * Copyright IBM Corp. 2008, 2018
7 * Author(s): Carsten Otte <cotte@de.ibm.com>
11 #ifndef ASM_KVM_HOST_H
12 #define ASM_KVM_HOST_H
14 #include <linux/types.h>
15 #include <linux/hrtimer.h>
16 #include <linux/interrupt.h>
17 #include <linux/kvm_types.h>
18 #include <linux/kvm_host.h>
19 #include <linux/kvm.h>
20 #include <linux/seqlock.h>
21 #include <linux/module.h>
22 #include <asm/debug.h>
24 #include <asm/fpu/api.h>
26 #include <asm/guarded_storage.h>
28 #define KVM_S390_BSCA_CPU_SLOTS 64
29 #define KVM_S390_ESCA_CPU_SLOTS 248
30 #define KVM_MAX_VCPUS 255
31 #define KVM_USER_MEM_SLOTS 32
34 * These seem to be used for allocating ->chip in the routing table, which we
35 * don't use. 1 is as small as we can get to reduce the needed memory. If we
36 * need to look at ->chip later on, we'll need to revisit this.
38 #define KVM_NR_IRQCHIPS 1
39 #define KVM_IRQCHIP_NUM_PINS 1
40 #define KVM_HALT_POLL_NS_DEFAULT 50000
42 /* s390-specific vcpu->requests bit members */
43 #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0)
44 #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1)
45 #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2)
46 #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3)
47 #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4)
48 #define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5)
50 #define SIGP_CTRL_C 0x80
51 #define SIGP_CTRL_SCN_MASK 0x3f
53 union bsca_sigp_ctrl {
62 union esca_sigp_ctrl {
72 union esca_sigp_ctrl sigp_ctrl;
80 union bsca_sigp_ctrl sigp_ctrl;
90 unsigned long kh : 31;
91 unsigned long kg : 32;
96 union ipte_control ipte_control;
100 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS];
104 union ipte_control ipte_control;
108 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
112 * This struct is used to store some machine check info from lowcore
113 * for machine checks that happen while the guest is running.
114 * This info in host's lowcore might be overwritten by a second machine
115 * check from host when host is in the machine check's high-level handling.
116 * The size is 24 bytes.
118 struct mcck_volatile_info {
120 __u64 failing_storage_address;
121 __u32 ext_damage_code;
125 #define CR0_INITIAL_MASK (CR0_UNUSED_56 | CR0_INTERRUPT_KEY_SUBMASK | \
126 CR0_MEASUREMENT_ALERT_SUBMASK)
127 #define CR14_INITIAL_MASK (CR14_UNUSED_32 | CR14_UNUSED_33 | \
128 CR14_EXTERNAL_DAMAGE_SUBMASK)
130 #define SIDAD_SIZE_MASK 0xff
131 #define sida_origin(sie_block) \
132 ((sie_block)->sidad & PAGE_MASK)
133 #define sida_size(sie_block) \
134 ((((sie_block)->sidad & SIDAD_SIZE_MASK) + 1) * PAGE_SIZE)
136 #define CPUSTAT_STOPPED 0x80000000
137 #define CPUSTAT_WAIT 0x10000000
138 #define CPUSTAT_ECALL_PEND 0x08000000
139 #define CPUSTAT_STOP_INT 0x04000000
140 #define CPUSTAT_IO_INT 0x02000000
141 #define CPUSTAT_EXT_INT 0x01000000
142 #define CPUSTAT_RUNNING 0x00800000
143 #define CPUSTAT_RETAINED 0x00400000
144 #define CPUSTAT_TIMING_SUB 0x00020000
145 #define CPUSTAT_SIE_SUB 0x00010000
146 #define CPUSTAT_RRF 0x00008000
147 #define CPUSTAT_SLSV 0x00004000
148 #define CPUSTAT_SLSR 0x00002000
149 #define CPUSTAT_ZARCH 0x00000800
150 #define CPUSTAT_MCDS 0x00000100
151 #define CPUSTAT_KSS 0x00000200
152 #define CPUSTAT_SM 0x00000080
153 #define CPUSTAT_IBS 0x00000040
154 #define CPUSTAT_GED2 0x00000010
155 #define CPUSTAT_G 0x00000008
156 #define CPUSTAT_GED 0x00000004
157 #define CPUSTAT_J 0x00000002
158 #define CPUSTAT_P 0x00000001
160 struct kvm_s390_sie_block {
161 atomic_t cpuflags; /* 0x0000 */
162 __u32 : 1; /* 0x0004 */
166 __u8 reserved08[4]; /* 0x0008 */
167 #define PROG_IN_SIE (1<<0)
168 __u32 prog0c; /* 0x000c */
170 __u8 reserved10[16]; /* 0x0010 */
173 __u64 pv_handle_config;
176 #define PROG_BLOCK_SIE (1<<0)
177 #define PROG_REQUEST (1<<1)
178 atomic_t prog20; /* 0x0020 */
179 __u8 reserved24[4]; /* 0x0024 */
180 __u64 cputm; /* 0x0028 */
181 __u64 ckc; /* 0x0030 */
182 __u64 epoch; /* 0x0038 */
183 __u32 svcc; /* 0x0040 */
184 #define LCTL_CR0 0x8000
185 #define LCTL_CR6 0x0200
186 #define LCTL_CR9 0x0040
187 #define LCTL_CR10 0x0020
188 #define LCTL_CR11 0x0010
189 #define LCTL_CR14 0x0002
190 __u16 lctl; /* 0x0044 */
191 __s16 icpua; /* 0x0046 */
192 #define ICTL_OPEREXC 0x80000000
193 #define ICTL_PINT 0x20000000
194 #define ICTL_LPSW 0x00400000
195 #define ICTL_STCTL 0x00040000
196 #define ICTL_ISKE 0x00004000
197 #define ICTL_SSKE 0x00002000
198 #define ICTL_RRBE 0x00001000
199 #define ICTL_TPROT 0x00000200
200 __u32 ictl; /* 0x0048 */
201 #define ECA_CEI 0x80000000
202 #define ECA_IB 0x40000000
203 #define ECA_SIGPI 0x10000000
204 #define ECA_MVPGI 0x01000000
205 #define ECA_AIV 0x00200000
206 #define ECA_VX 0x00020000
207 #define ECA_PROTEXCI 0x00002000
208 #define ECA_APIE 0x00000008
209 #define ECA_SII 0x00000001
210 __u32 eca; /* 0x004c */
211 #define ICPT_INST 0x04
212 #define ICPT_PROGI 0x08
213 #define ICPT_INSTPROGI 0x0C
214 #define ICPT_EXTREQ 0x10
215 #define ICPT_EXTINT 0x14
216 #define ICPT_IOREQ 0x18
217 #define ICPT_WAIT 0x1c
218 #define ICPT_VALIDITY 0x20
219 #define ICPT_STOP 0x28
220 #define ICPT_OPEREXC 0x2C
221 #define ICPT_PARTEXEC 0x38
222 #define ICPT_IOINST 0x40
223 #define ICPT_KSS 0x5c
224 #define ICPT_MCHKREQ 0x60
225 #define ICPT_INT_ENABLE 0x64
226 #define ICPT_PV_INSTR 0x68
227 #define ICPT_PV_NOTIFY 0x6c
228 #define ICPT_PV_PREF 0x70
229 __u8 icptcode; /* 0x0050 */
230 __u8 icptstatus; /* 0x0051 */
231 __u16 ihcpu; /* 0x0052 */
232 __u8 reserved54; /* 0x0054 */
233 #define IICTL_CODE_NONE 0x00
234 #define IICTL_CODE_MCHK 0x01
235 #define IICTL_CODE_EXT 0x02
236 #define IICTL_CODE_IO 0x03
237 #define IICTL_CODE_RESTART 0x04
238 #define IICTL_CODE_SPECIFICATION 0x10
239 #define IICTL_CODE_OPERAND 0x11
240 __u8 iictl; /* 0x0055 */
241 __u16 ipa; /* 0x0056 */
242 __u32 ipb; /* 0x0058 */
243 __u32 scaoh; /* 0x005c */
244 #define FPF_BPBC 0x20
245 __u8 fpf; /* 0x0060 */
248 #define ECB_SRSI 0x04
249 #define ECB_HOSTPROTINT 0x02
250 __u8 ecb; /* 0x0061 */
251 #define ECB2_CMMA 0x80
252 #define ECB2_IEP 0x20
253 #define ECB2_PFMFI 0x08
254 #define ECB2_ESCA 0x04
255 __u8 ecb2; /* 0x0062 */
256 #define ECB3_DEA 0x08
257 #define ECB3_AES 0x04
259 __u8 ecb3; /* 0x0063 */
260 __u32 scaol; /* 0x0064 */
261 __u8 sdf; /* 0x0068 */
262 __u8 epdx; /* 0x0069 */
263 __u8 reserved6a[2]; /* 0x006a */
264 __u32 todpr; /* 0x006c */
265 #define GISA_FORMAT1 0x00000001
266 __u32 gd; /* 0x0070 */
267 __u8 reserved74[12]; /* 0x0074 */
268 __u64 mso; /* 0x0080 */
269 __u64 msl; /* 0x0088 */
270 psw_t gpsw; /* 0x0090 */
271 __u64 gg14; /* 0x00a0 */
272 __u64 gg15; /* 0x00a8 */
273 __u8 reservedb0[8]; /* 0x00b0 */
275 #define HPID_VSIE 0x5
276 __u8 hpid; /* 0x00b8 */
277 __u8 reservedb9[7]; /* 0x00b9 */
280 __u32 eiparams; /* 0x00c0 */
281 __u16 extcpuaddr; /* 0x00c4 */
282 __u16 eic; /* 0x00c6 */
284 __u64 mcic; /* 0x00c0 */
286 __u32 reservedc8; /* 0x00c8 */
289 __u16 pgmilc; /* 0x00cc */
290 __u16 iprcc; /* 0x00ce */
292 __u32 edc; /* 0x00cc */
296 __u32 dxc; /* 0x00d0 */
297 __u16 mcn; /* 0x00d4 */
298 __u8 perc; /* 0x00d6 */
299 __u8 peratmid; /* 0x00d7 */
301 __u64 faddr; /* 0x00d0 */
303 __u64 peraddr; /* 0x00d8 */
304 __u8 eai; /* 0x00e0 */
305 __u8 peraid; /* 0x00e1 */
306 __u8 oai; /* 0x00e2 */
307 __u8 armid; /* 0x00e3 */
308 __u8 reservede4[4]; /* 0x00e4 */
310 __u64 tecmc; /* 0x00e8 */
312 __u16 subchannel_id; /* 0x00e8 */
313 __u16 subchannel_nr; /* 0x00ea */
314 __u32 io_int_parm; /* 0x00ec */
315 __u32 io_int_word; /* 0x00f0 */
318 __u8 reservedf4[8]; /* 0x00f4 */
319 #define CRYCB_FORMAT_MASK 0x00000003
320 #define CRYCB_FORMAT0 0x00000000
321 #define CRYCB_FORMAT1 0x00000001
322 #define CRYCB_FORMAT2 0x00000003
323 __u32 crycbd; /* 0x00fc */
324 __u64 gcr[16]; /* 0x0100 */
326 __u64 gbea; /* 0x0180 */
329 __u8 reserved188[8]; /* 0x0188 */
330 __u64 sdnxo; /* 0x0190 */
331 __u8 reserved198[8]; /* 0x0198 */
332 __u32 fac; /* 0x01a0 */
333 __u8 reserved1a4[20]; /* 0x01a4 */
334 __u64 cbrlo; /* 0x01b8 */
335 __u8 reserved1c0[8]; /* 0x01c0 */
336 #define ECD_HOSTREGMGMT 0x20000000
337 #define ECD_MEF 0x08000000
338 #define ECD_ETOKENF 0x02000000
339 #define ECD_ECC 0x00200000
340 __u32 ecd; /* 0x01c8 */
341 __u8 reserved1cc[18]; /* 0x01cc */
342 __u64 pp; /* 0x01de */
343 __u8 reserved1e6[2]; /* 0x01e6 */
344 __u64 itdba; /* 0x01e8 */
345 __u64 riccbd; /* 0x01f0 */
346 __u64 gvrd; /* 0x01f8 */
347 } __packed __aligned(512);
349 struct kvm_s390_itdb {
354 struct kvm_s390_sie_block sie_block;
355 struct mcck_volatile_info mcck_info; /* 0x0200 */
356 __u8 reserved218[360]; /* 0x0218 */
357 __u64 pv_grregs[16]; /* 0x0380 */
358 __u8 reserved400[512]; /* 0x0400 */
359 struct kvm_s390_itdb itdb; /* 0x0600 */
360 __u8 reserved700[2304]; /* 0x0700 */
363 struct kvm_vcpu_stat {
366 u64 exit_external_request;
368 u64 exit_external_interrupt;
369 u64 exit_stop_request;
371 u64 exit_instruction;
373 u64 halt_successful_poll;
374 u64 halt_attempted_poll;
375 u64 halt_poll_invalid;
376 u64 halt_no_poll_steal;
378 u64 halt_poll_success_ns;
379 u64 halt_poll_fail_ns;
380 u64 instruction_lctl;
381 u64 instruction_lctlg;
382 u64 instruction_stctl;
383 u64 instruction_stctg;
384 u64 exit_program_interruption;
385 u64 exit_instr_and_program;
386 u64 exit_operation_exception;
389 u64 deliver_external_call;
390 u64 deliver_emergency_signal;
391 u64 deliver_service_signal;
393 u64 deliver_stop_signal;
394 u64 deliver_prefix_signal;
395 u64 deliver_restart_signal;
398 u64 deliver_machine_check;
402 u64 inject_external_call;
403 u64 inject_emergency_signal;
405 u64 inject_pfault_init;
408 u64 inject_set_prefix;
409 u64 inject_stop_signal;
410 u64 instruction_epsw;
412 u64 instruction_io_other;
413 u64 instruction_lpsw;
414 u64 instruction_lpswe;
415 u64 instruction_pfmf;
416 u64 instruction_ptff;
418 u64 instruction_sckpf;
419 u64 instruction_stidp;
421 u64 instruction_stpx;
422 u64 instruction_stap;
423 u64 instruction_iske;
425 u64 instruction_rrbe;
426 u64 instruction_sske;
427 u64 instruction_ipte_interlock;
428 u64 instruction_stsi;
429 u64 instruction_stfl;
432 u64 instruction_tprot;
433 u64 instruction_tsch;
435 u64 instruction_essa;
436 u64 instruction_sthyi;
437 u64 instruction_sigp_sense;
438 u64 instruction_sigp_sense_running;
439 u64 instruction_sigp_external_call;
440 u64 instruction_sigp_emergency;
441 u64 instruction_sigp_cond_emergency;
442 u64 instruction_sigp_start;
443 u64 instruction_sigp_stop;
444 u64 instruction_sigp_stop_store_status;
445 u64 instruction_sigp_store_status;
446 u64 instruction_sigp_store_adtl_status;
447 u64 instruction_sigp_arch;
448 u64 instruction_sigp_prefix;
449 u64 instruction_sigp_restart;
450 u64 instruction_sigp_init_cpu_reset;
451 u64 instruction_sigp_cpu_reset;
452 u64 instruction_sigp_unknown;
456 u64 diagnose_9c_ignored;
463 #define PGM_OPERATION 0x01
464 #define PGM_PRIVILEGED_OP 0x02
465 #define PGM_EXECUTE 0x03
466 #define PGM_PROTECTION 0x04
467 #define PGM_ADDRESSING 0x05
468 #define PGM_SPECIFICATION 0x06
469 #define PGM_DATA 0x07
470 #define PGM_FIXED_POINT_OVERFLOW 0x08
471 #define PGM_FIXED_POINT_DIVIDE 0x09
472 #define PGM_DECIMAL_OVERFLOW 0x0a
473 #define PGM_DECIMAL_DIVIDE 0x0b
474 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
475 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
476 #define PGM_HFP_SIGNIFICANCE 0x0e
477 #define PGM_HFP_DIVIDE 0x0f
478 #define PGM_SEGMENT_TRANSLATION 0x10
479 #define PGM_PAGE_TRANSLATION 0x11
480 #define PGM_TRANSLATION_SPEC 0x12
481 #define PGM_SPECIAL_OPERATION 0x13
482 #define PGM_OPERAND 0x15
483 #define PGM_TRACE_TABEL 0x16
484 #define PGM_VECTOR_PROCESSING 0x1b
485 #define PGM_SPACE_SWITCH 0x1c
486 #define PGM_HFP_SQUARE_ROOT 0x1d
487 #define PGM_PC_TRANSLATION_SPEC 0x1f
488 #define PGM_AFX_TRANSLATION 0x20
489 #define PGM_ASX_TRANSLATION 0x21
490 #define PGM_LX_TRANSLATION 0x22
491 #define PGM_EX_TRANSLATION 0x23
492 #define PGM_PRIMARY_AUTHORITY 0x24
493 #define PGM_SECONDARY_AUTHORITY 0x25
494 #define PGM_LFX_TRANSLATION 0x26
495 #define PGM_LSX_TRANSLATION 0x27
496 #define PGM_ALET_SPECIFICATION 0x28
497 #define PGM_ALEN_TRANSLATION 0x29
498 #define PGM_ALE_SEQUENCE 0x2a
499 #define PGM_ASTE_VALIDITY 0x2b
500 #define PGM_ASTE_SEQUENCE 0x2c
501 #define PGM_EXTENDED_AUTHORITY 0x2d
502 #define PGM_LSTE_SEQUENCE 0x2e
503 #define PGM_ASTE_INSTANCE 0x2f
504 #define PGM_STACK_FULL 0x30
505 #define PGM_STACK_EMPTY 0x31
506 #define PGM_STACK_SPECIFICATION 0x32
507 #define PGM_STACK_TYPE 0x33
508 #define PGM_STACK_OPERATION 0x34
509 #define PGM_ASCE_TYPE 0x38
510 #define PGM_REGION_FIRST_TRANS 0x39
511 #define PGM_REGION_SECOND_TRANS 0x3a
512 #define PGM_REGION_THIRD_TRANS 0x3b
513 #define PGM_MONITOR 0x40
515 #define PGM_CRYPTO_OPERATION 0x119
517 /* irq types in ascend order of priorities */
519 IRQ_PEND_SET_PREFIX = 0,
531 IRQ_PEND_PFAULT_DONE,
532 IRQ_PEND_PFAULT_INIT,
534 IRQ_PEND_EXT_SERVICE,
535 IRQ_PEND_EXT_SERVICE_EV,
537 IRQ_PEND_EXT_CPU_TIMER,
538 IRQ_PEND_EXT_CLOCK_COMP,
539 IRQ_PEND_EXT_EXTERNAL,
540 IRQ_PEND_EXT_EMERGENCY,
541 IRQ_PEND_EXT_MALFUNC,
542 IRQ_PEND_EXT_IRQ_KEY,
550 /* We have 2M for virtio device descriptor pages. Smallest amount of
551 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
553 #define KVM_S390_MAX_VIRTIO_IRQS 87381
556 * Repressible (non-floating) machine check interrupts
557 * subclass bits in MCIC
559 #define MCHK_EXTD_BIT 58
560 #define MCHK_DEGR_BIT 56
561 #define MCHK_WARN_BIT 55
562 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
563 (1UL << MCHK_EXTD_BIT) | \
564 (1UL << MCHK_WARN_BIT))
566 /* Exigent machine check interrupts subclass bits in MCIC */
567 #define MCHK_SD_BIT 63
568 #define MCHK_PD_BIT 62
569 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
571 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
572 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
573 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \
574 (1UL << IRQ_PEND_EXT_MALFUNC) | \
575 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
576 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
577 (1UL << IRQ_PEND_EXT_TIMING) | \
578 (1UL << IRQ_PEND_EXT_HOST) | \
579 (1UL << IRQ_PEND_EXT_SERVICE) | \
580 (1UL << IRQ_PEND_EXT_SERVICE_EV) | \
581 (1UL << IRQ_PEND_VIRTIO) | \
582 (1UL << IRQ_PEND_PFAULT_INIT) | \
583 (1UL << IRQ_PEND_PFAULT_DONE))
585 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
586 (1UL << IRQ_PEND_IO_ISC_1) | \
587 (1UL << IRQ_PEND_IO_ISC_2) | \
588 (1UL << IRQ_PEND_IO_ISC_3) | \
589 (1UL << IRQ_PEND_IO_ISC_4) | \
590 (1UL << IRQ_PEND_IO_ISC_5) | \
591 (1UL << IRQ_PEND_IO_ISC_6) | \
592 (1UL << IRQ_PEND_IO_ISC_7))
594 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
595 (1UL << IRQ_PEND_MCHK_EX))
597 #define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \
598 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
599 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
600 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
601 (1UL << IRQ_PEND_EXT_SERVICE) | \
602 (1UL << IRQ_PEND_EXT_SERVICE_EV))
604 struct kvm_s390_interrupt_info {
605 struct list_head list;
608 struct kvm_s390_io_info io;
609 struct kvm_s390_ext_info ext;
610 struct kvm_s390_pgm_info pgm;
611 struct kvm_s390_emerg_info emerg;
612 struct kvm_s390_extcall_info extcall;
613 struct kvm_s390_prefix_info prefix;
614 struct kvm_s390_stop_info stop;
615 struct kvm_s390_mchk_info mchk;
619 struct kvm_s390_irq_payload {
620 struct kvm_s390_io_info io;
621 struct kvm_s390_ext_info ext;
622 struct kvm_s390_pgm_info pgm;
623 struct kvm_s390_emerg_info emerg;
624 struct kvm_s390_extcall_info extcall;
625 struct kvm_s390_prefix_info prefix;
626 struct kvm_s390_stop_info stop;
627 struct kvm_s390_mchk_info mchk;
630 struct kvm_s390_local_interrupt {
632 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
633 struct kvm_s390_irq_payload irq;
634 unsigned long pending_irqs;
637 #define FIRQ_LIST_IO_ISC_0 0
638 #define FIRQ_LIST_IO_ISC_1 1
639 #define FIRQ_LIST_IO_ISC_2 2
640 #define FIRQ_LIST_IO_ISC_3 3
641 #define FIRQ_LIST_IO_ISC_4 4
642 #define FIRQ_LIST_IO_ISC_5 5
643 #define FIRQ_LIST_IO_ISC_6 6
644 #define FIRQ_LIST_IO_ISC_7 7
645 #define FIRQ_LIST_PFAULT 8
646 #define FIRQ_LIST_VIRTIO 9
647 #define FIRQ_LIST_COUNT 10
648 #define FIRQ_CNTR_IO 0
649 #define FIRQ_CNTR_SERVICE 1
650 #define FIRQ_CNTR_VIRTIO 2
651 #define FIRQ_CNTR_PFAULT 3
652 #define FIRQ_MAX_COUNT 4
654 /* mask the AIS mode for a given ISC */
655 #define AIS_MODE_MASK(isc) (0x80 >> isc)
657 #define KVM_S390_AIS_MODE_ALL 0
658 #define KVM_S390_AIS_MODE_SINGLE 1
660 struct kvm_s390_float_interrupt {
661 unsigned long pending_irqs;
662 unsigned long masked_irqs;
664 struct list_head lists[FIRQ_LIST_COUNT];
665 int counters[FIRQ_MAX_COUNT];
666 struct kvm_s390_mchk_info mchk;
667 struct kvm_s390_ext_info srv_signal;
669 struct mutex ais_lock;
674 struct kvm_hw_wp_info_arch {
676 unsigned long phys_addr;
681 struct kvm_hw_bp_info_arch {
687 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
688 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
689 * arch/s390/include/uapi/asm/kvm.h
691 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000
693 #define guestdbg_enabled(vcpu) \
694 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
695 #define guestdbg_sstep_enabled(vcpu) \
696 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
697 #define guestdbg_hw_bp_enabled(vcpu) \
698 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
699 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
700 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
702 struct kvm_guestdbg_info_arch {
707 struct kvm_hw_bp_info_arch *hw_bp_info;
708 struct kvm_hw_wp_info_arch *hw_wp_info;
711 unsigned long last_bp;
714 struct kvm_s390_pv_vcpu {
716 unsigned long stor_base;
719 struct kvm_vcpu_arch {
720 struct kvm_s390_sie_block *sie_block;
721 /* if vsie is active, currently executed shadow sie control block */
722 struct kvm_s390_sie_block *vsie_block;
723 unsigned int host_acrs[NUM_ACRS];
724 struct gs_cb *host_gscb;
725 struct fpu host_fpregs;
726 struct kvm_s390_local_interrupt local_int;
727 struct hrtimer ckc_timer;
728 struct kvm_s390_pgm_info pgm;
730 /* backup location for the currently enabled gmap when scheduled out */
731 struct gmap *enabled_gmap;
732 struct kvm_guestdbg_info_arch guestdbg;
733 unsigned long pfault_token;
734 unsigned long pfault_select;
735 unsigned long pfault_compare;
738 * The seqcount protects updates to cputm_start and sie_block.cputm,
739 * this way we can have non-blocking reads with consistent values.
740 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these
741 * values and to start/stop/enable/disable cpu timer accounting.
743 seqcount_t cputm_seqcount;
747 struct kvm_s390_pv_vcpu pv;
752 u64 inject_float_mchk;
753 u64 inject_pfault_done;
754 u64 inject_service_signal;
756 u64 remote_tlb_flush;
759 struct kvm_arch_memory_slot {
762 struct s390_map_info {
763 struct list_head list;
769 struct s390_io_adapter {
778 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
779 #define MAX_S390_ADAPTER_MAPS 256
781 /* maximum size of facilities and facility mask is 2k bytes */
782 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
783 #define S390_ARCH_FAC_LIST_SIZE_U64 \
784 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
785 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
786 #define S390_ARCH_FAC_MASK_SIZE_U64 \
787 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
789 struct kvm_s390_cpu_model {
790 /* facility mask supported by kvm & hosting machine */
791 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
792 struct kvm_s390_vm_cpu_subfunc subfuncs;
793 /* facility list requested by guest (in dma page) */
799 struct kvm_s390_module_hook {
800 int (*hook)(struct kvm_vcpu *vcpu);
801 struct module *owner;
804 struct kvm_s390_crypto {
805 struct kvm_s390_crypto_cb *crycb;
806 struct kvm_s390_module_hook *pqap_hook;
813 #define APCB0_MASK_SIZE 1
814 struct kvm_s390_apcb0 {
815 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */
816 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */
817 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */
818 __u64 reserved18; /* 0x0018 */
821 #define APCB1_MASK_SIZE 4
822 struct kvm_s390_apcb1 {
823 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */
824 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */
825 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */
826 __u64 reserved60[4]; /* 0x0060 */
829 struct kvm_s390_crypto_cb {
830 struct kvm_s390_apcb0 apcb0; /* 0x0000 */
831 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */
832 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */
833 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */
834 struct kvm_s390_apcb1 apcb1; /* 0x0080 */
837 struct kvm_s390_gisa {
839 struct { /* common to all formats */
845 struct { /* format 0 */
856 struct { /* format 1 */
875 struct kvm_s390_gib {
876 u32 alert_list_origin;
885 * sie_page2 has to be allocated as DMA because fac_list, crycb and
886 * gisa need 31bit addresses in the sie control block.
889 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */
890 struct kvm_s390_crypto_cb crycb; /* 0x0800 */
891 struct kvm_s390_gisa gisa; /* 0x0900 */
892 struct kvm *kvm; /* 0x0920 */
893 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */
896 struct kvm_s390_vsie {
898 struct radix_tree_root addr_to_page;
901 struct page *pages[KVM_MAX_VCPUS];
904 struct kvm_s390_gisa_iam {
907 u32 ref_count[MAX_ISC + 1];
910 struct kvm_s390_gisa_interrupt {
911 struct kvm_s390_gisa *origin;
912 struct kvm_s390_gisa_iam alert;
913 struct hrtimer timer;
915 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS);
921 unsigned long stor_base;
930 struct kvm_s390_float_interrupt float_int;
931 struct kvm_device *flic;
933 unsigned long mem_limit;
939 int user_cpu_state_ctrl;
943 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
944 wait_queue_head_t ipte_wq;
946 struct mutex ipte_mutex;
947 spinlock_t start_stop_lock;
948 struct sie_page2 *sie_page2;
949 struct kvm_s390_cpu_model model;
950 struct kvm_s390_crypto crypto;
951 struct kvm_s390_vsie vsie;
955 atomic64_t cmma_dirty_pages;
956 /* subset of available cpu features enabled by user space */
957 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);
958 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS);
959 struct kvm_s390_gisa_interrupt gisa_int;
960 struct kvm_s390_pv pv;
963 #define KVM_HVA_ERR_BAD (-1UL)
964 #define KVM_HVA_ERR_RO_BAD (-2UL)
966 static inline bool kvm_is_error_hva(unsigned long addr)
968 return IS_ERR_VALUE(addr);
971 #define ASYNC_PF_PER_VCPU 64
972 struct kvm_arch_async_pf {
973 unsigned long pfault_token;
976 bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu *vcpu);
978 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
979 struct kvm_async_pf *work);
981 bool kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
982 struct kvm_async_pf *work);
984 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
985 struct kvm_async_pf *work);
987 static inline void kvm_arch_async_page_present_queued(struct kvm_vcpu *vcpu) {}
989 void kvm_arch_crypto_clear_masks(struct kvm *kvm);
990 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm,
991 unsigned long *aqm, unsigned long *adm);
993 extern int sie64a(struct kvm_s390_sie_block *, u64 *);
994 extern char sie_exit;
996 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc);
997 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc);
999 static inline void kvm_arch_hardware_disable(void) {}
1000 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
1001 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
1002 static inline void kvm_arch_free_memslot(struct kvm *kvm,
1003 struct kvm_memory_slot *slot) {}
1004 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
1005 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
1006 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
1007 struct kvm_memory_slot *slot) {}
1008 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
1009 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
1011 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu);