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 <linux/pci.h>
23 #include <linux/mmu_notifier.h>
24 #include <asm/debug.h>
26 #include <asm/fpu/api.h>
28 #include <asm/guarded_storage.h>
30 #define KVM_S390_BSCA_CPU_SLOTS 64
31 #define KVM_S390_ESCA_CPU_SLOTS 248
32 #define KVM_MAX_VCPUS 255
35 * These seem to be used for allocating ->chip in the routing table, which we
36 * don't use. 1 is as small as we can get to reduce the needed memory. If we
37 * need to look at ->chip later on, we'll need to revisit this.
39 #define KVM_NR_IRQCHIPS 1
40 #define KVM_IRQCHIP_NUM_PINS 1
41 #define KVM_HALT_POLL_NS_DEFAULT 50000
43 /* s390-specific vcpu->requests bit members */
44 #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0)
45 #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1)
46 #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2)
47 #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3)
48 #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4)
49 #define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5)
50 #define KVM_REQ_REFRESH_GUEST_PREFIX \
51 KVM_ARCH_REQ_FLAGS(6, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
53 #define SIGP_CTRL_C 0x80
54 #define SIGP_CTRL_SCN_MASK 0x3f
56 union bsca_sigp_ctrl
{
65 union esca_sigp_ctrl
{
75 union esca_sigp_ctrl sigp_ctrl
;
83 union bsca_sigp_ctrl sigp_ctrl
;
93 unsigned long kh
: 31;
94 unsigned long kg
: 32;
107 union ipte_control ipte_control
;
110 union sca_utility utility
;
112 struct bsca_entry cpu
[KVM_S390_BSCA_CPU_SLOTS
];
116 union ipte_control ipte_control
;
118 union sca_utility utility
;
122 struct esca_entry cpu
[KVM_S390_ESCA_CPU_SLOTS
];
126 * This struct is used to store some machine check info from lowcore
127 * for machine checks that happen while the guest is running.
128 * This info in host's lowcore might be overwritten by a second machine
129 * check from host when host is in the machine check's high-level handling.
130 * The size is 24 bytes.
132 struct mcck_volatile_info
{
134 __u64 failing_storage_address
;
135 __u32 ext_damage_code
;
139 #define CR0_INITIAL_MASK (CR0_UNUSED_56 | CR0_INTERRUPT_KEY_SUBMASK | \
140 CR0_MEASUREMENT_ALERT_SUBMASK)
141 #define CR14_INITIAL_MASK (CR14_UNUSED_32 | CR14_UNUSED_33 | \
142 CR14_EXTERNAL_DAMAGE_SUBMASK)
144 #define SIDAD_SIZE_MASK 0xff
145 #define sida_addr(sie_block) phys_to_virt((sie_block)->sidad & PAGE_MASK)
146 #define sida_size(sie_block) \
147 ((((sie_block)->sidad & SIDAD_SIZE_MASK) + 1) * PAGE_SIZE)
149 #define CPUSTAT_STOPPED 0x80000000
150 #define CPUSTAT_WAIT 0x10000000
151 #define CPUSTAT_ECALL_PEND 0x08000000
152 #define CPUSTAT_STOP_INT 0x04000000
153 #define CPUSTAT_IO_INT 0x02000000
154 #define CPUSTAT_EXT_INT 0x01000000
155 #define CPUSTAT_RUNNING 0x00800000
156 #define CPUSTAT_RETAINED 0x00400000
157 #define CPUSTAT_TIMING_SUB 0x00020000
158 #define CPUSTAT_SIE_SUB 0x00010000
159 #define CPUSTAT_RRF 0x00008000
160 #define CPUSTAT_SLSV 0x00004000
161 #define CPUSTAT_SLSR 0x00002000
162 #define CPUSTAT_ZARCH 0x00000800
163 #define CPUSTAT_MCDS 0x00000100
164 #define CPUSTAT_KSS 0x00000200
165 #define CPUSTAT_SM 0x00000080
166 #define CPUSTAT_IBS 0x00000040
167 #define CPUSTAT_GED2 0x00000010
168 #define CPUSTAT_G 0x00000008
169 #define CPUSTAT_GED 0x00000004
170 #define CPUSTAT_J 0x00000002
171 #define CPUSTAT_P 0x00000001
173 struct kvm_s390_sie_block
{
174 atomic_t cpuflags
; /* 0x0000 */
175 __u32
: 1; /* 0x0004 */
179 __u8 reserved08
[4]; /* 0x0008 */
180 #define PROG_IN_SIE (1<<0)
181 __u32 prog0c
; /* 0x000c */
183 __u8 reserved10
[16]; /* 0x0010 */
186 __u64 pv_handle_config
;
189 #define PROG_BLOCK_SIE (1<<0)
190 #define PROG_REQUEST (1<<1)
191 atomic_t prog20
; /* 0x0020 */
192 __u8 reserved24
[4]; /* 0x0024 */
193 __u64 cputm
; /* 0x0028 */
194 __u64 ckc
; /* 0x0030 */
195 __u64 epoch
; /* 0x0038 */
196 __u32 svcc
; /* 0x0040 */
197 #define LCTL_CR0 0x8000
198 #define LCTL_CR6 0x0200
199 #define LCTL_CR9 0x0040
200 #define LCTL_CR10 0x0020
201 #define LCTL_CR11 0x0010
202 #define LCTL_CR14 0x0002
203 __u16 lctl
; /* 0x0044 */
204 __s16 icpua
; /* 0x0046 */
205 #define ICTL_OPEREXC 0x80000000
206 #define ICTL_PINT 0x20000000
207 #define ICTL_LPSW 0x00400000
208 #define ICTL_STCTL 0x00040000
209 #define ICTL_ISKE 0x00004000
210 #define ICTL_SSKE 0x00002000
211 #define ICTL_RRBE 0x00001000
212 #define ICTL_TPROT 0x00000200
213 __u32 ictl
; /* 0x0048 */
214 #define ECA_CEI 0x80000000
215 #define ECA_IB 0x40000000
216 #define ECA_SIGPI 0x10000000
217 #define ECA_MVPGI 0x01000000
218 #define ECA_AIV 0x00200000
219 #define ECA_VX 0x00020000
220 #define ECA_PROTEXCI 0x00002000
221 #define ECA_APIE 0x00000008
222 #define ECA_SII 0x00000001
223 __u32 eca
; /* 0x004c */
224 #define ICPT_INST 0x04
225 #define ICPT_PROGI 0x08
226 #define ICPT_INSTPROGI 0x0C
227 #define ICPT_EXTREQ 0x10
228 #define ICPT_EXTINT 0x14
229 #define ICPT_IOREQ 0x18
230 #define ICPT_WAIT 0x1c
231 #define ICPT_VALIDITY 0x20
232 #define ICPT_STOP 0x28
233 #define ICPT_OPEREXC 0x2C
234 #define ICPT_PARTEXEC 0x38
235 #define ICPT_IOINST 0x40
236 #define ICPT_KSS 0x5c
237 #define ICPT_MCHKREQ 0x60
238 #define ICPT_INT_ENABLE 0x64
239 #define ICPT_PV_INSTR 0x68
240 #define ICPT_PV_NOTIFY 0x6c
241 #define ICPT_PV_PREF 0x70
242 __u8 icptcode
; /* 0x0050 */
243 __u8 icptstatus
; /* 0x0051 */
244 __u16 ihcpu
; /* 0x0052 */
245 __u8 reserved54
; /* 0x0054 */
246 #define IICTL_CODE_NONE 0x00
247 #define IICTL_CODE_MCHK 0x01
248 #define IICTL_CODE_EXT 0x02
249 #define IICTL_CODE_IO 0x03
250 #define IICTL_CODE_RESTART 0x04
251 #define IICTL_CODE_SPECIFICATION 0x10
252 #define IICTL_CODE_OPERAND 0x11
253 __u8 iictl
; /* 0x0055 */
254 __u16 ipa
; /* 0x0056 */
255 __u32 ipb
; /* 0x0058 */
256 __u32 scaoh
; /* 0x005c */
257 #define FPF_BPBC 0x20
258 __u8 fpf
; /* 0x0060 */
261 #define ECB_SPECI 0x08
262 #define ECB_SRSI 0x04
263 #define ECB_HOSTPROTINT 0x02
265 __u8 ecb
; /* 0x0061 */
266 #define ECB2_CMMA 0x80
267 #define ECB2_IEP 0x20
268 #define ECB2_PFMFI 0x08
269 #define ECB2_ESCA 0x04
270 #define ECB2_ZPCI_LSI 0x02
271 __u8 ecb2
; /* 0x0062 */
272 #define ECB3_AISI 0x20
273 #define ECB3_AISII 0x10
274 #define ECB3_DEA 0x08
275 #define ECB3_AES 0x04
277 __u8 ecb3
; /* 0x0063 */
278 #define ESCA_SCAOL_MASK ~0x3fU
279 __u32 scaol
; /* 0x0064 */
280 __u8 sdf
; /* 0x0068 */
281 __u8 epdx
; /* 0x0069 */
282 __u8 cpnc
; /* 0x006a */
283 __u8 reserved6b
; /* 0x006b */
284 __u32 todpr
; /* 0x006c */
285 #define GISA_FORMAT1 0x00000001
286 __u32 gd
; /* 0x0070 */
287 __u8 reserved74
[12]; /* 0x0074 */
288 __u64 mso
; /* 0x0080 */
289 __u64 msl
; /* 0x0088 */
290 psw_t gpsw
; /* 0x0090 */
291 __u64 gg14
; /* 0x00a0 */
292 __u64 gg15
; /* 0x00a8 */
293 __u8 reservedb0
[8]; /* 0x00b0 */
295 #define HPID_VSIE 0x5
296 __u8 hpid
; /* 0x00b8 */
297 __u8 reservedb9
[7]; /* 0x00b9 */
300 __u32 eiparams
; /* 0x00c0 */
301 __u16 extcpuaddr
; /* 0x00c4 */
302 __u16 eic
; /* 0x00c6 */
304 __u64 mcic
; /* 0x00c0 */
306 __u32 reservedc8
; /* 0x00c8 */
309 __u16 pgmilc
; /* 0x00cc */
310 __u16 iprcc
; /* 0x00ce */
312 __u32 edc
; /* 0x00cc */
316 __u32 dxc
; /* 0x00d0 */
317 __u16 mcn
; /* 0x00d4 */
318 __u8 perc
; /* 0x00d6 */
319 __u8 peratmid
; /* 0x00d7 */
321 __u64 faddr
; /* 0x00d0 */
323 __u64 peraddr
; /* 0x00d8 */
324 __u8 eai
; /* 0x00e0 */
325 __u8 peraid
; /* 0x00e1 */
326 __u8 oai
; /* 0x00e2 */
327 __u8 armid
; /* 0x00e3 */
328 __u8 reservede4
[4]; /* 0x00e4 */
330 __u64 tecmc
; /* 0x00e8 */
332 __u16 subchannel_id
; /* 0x00e8 */
333 __u16 subchannel_nr
; /* 0x00ea */
334 __u32 io_int_parm
; /* 0x00ec */
335 __u32 io_int_word
; /* 0x00f0 */
338 __u8 reservedf4
[8]; /* 0x00f4 */
339 #define CRYCB_FORMAT_MASK 0x00000003
340 #define CRYCB_FORMAT0 0x00000000
341 #define CRYCB_FORMAT1 0x00000001
342 #define CRYCB_FORMAT2 0x00000003
343 __u32 crycbd
; /* 0x00fc */
344 __u64 gcr
[16]; /* 0x0100 */
346 __u64 gbea
; /* 0x0180 */
349 __u8 reserved188
[8]; /* 0x0188 */
350 __u64 sdnxo
; /* 0x0190 */
351 __u8 reserved198
[8]; /* 0x0198 */
352 __u32 fac
; /* 0x01a0 */
353 __u8 reserved1a4
[20]; /* 0x01a4 */
354 __u64 cbrlo
; /* 0x01b8 */
355 __u8 reserved1c0
[8]; /* 0x01c0 */
356 #define ECD_HOSTREGMGMT 0x20000000
357 #define ECD_MEF 0x08000000
358 #define ECD_ETOKENF 0x02000000
359 #define ECD_ECC 0x00200000
360 __u32 ecd
; /* 0x01c8 */
361 __u8 reserved1cc
[18]; /* 0x01cc */
362 __u64 pp
; /* 0x01de */
363 __u8 reserved1e6
[2]; /* 0x01e6 */
364 __u64 itdba
; /* 0x01e8 */
365 __u64 riccbd
; /* 0x01f0 */
366 __u64 gvrd
; /* 0x01f8 */
367 } __packed
__aligned(512);
369 struct kvm_s390_itdb
{
374 struct kvm_s390_sie_block sie_block
;
375 struct mcck_volatile_info mcck_info
; /* 0x0200 */
376 __u8 reserved218
[360]; /* 0x0218 */
377 __u64 pv_grregs
[16]; /* 0x0380 */
378 __u8 reserved400
[512]; /* 0x0400 */
379 struct kvm_s390_itdb itdb
; /* 0x0600 */
380 __u8 reserved700
[2304]; /* 0x0700 */
383 struct kvm_vcpu_stat
{
384 struct kvm_vcpu_stat_generic generic
;
387 u64 exit_external_request
;
389 u64 exit_external_interrupt
;
390 u64 exit_stop_request
;
392 u64 exit_instruction
;
394 u64 halt_no_poll_steal
;
395 u64 instruction_lctl
;
396 u64 instruction_lctlg
;
397 u64 instruction_stctl
;
398 u64 instruction_stctg
;
399 u64 exit_program_interruption
;
400 u64 exit_instr_and_program
;
401 u64 exit_operation_exception
;
404 u64 deliver_external_call
;
405 u64 deliver_emergency_signal
;
406 u64 deliver_service_signal
;
408 u64 deliver_stop_signal
;
409 u64 deliver_prefix_signal
;
410 u64 deliver_restart_signal
;
413 u64 deliver_machine_check
;
417 u64 inject_external_call
;
418 u64 inject_emergency_signal
;
420 u64 inject_pfault_init
;
423 u64 inject_set_prefix
;
424 u64 inject_stop_signal
;
425 u64 instruction_epsw
;
427 u64 instruction_io_other
;
428 u64 instruction_lpsw
;
429 u64 instruction_lpswe
;
430 u64 instruction_pfmf
;
431 u64 instruction_ptff
;
433 u64 instruction_sckpf
;
434 u64 instruction_stidp
;
436 u64 instruction_stpx
;
437 u64 instruction_stap
;
438 u64 instruction_iske
;
440 u64 instruction_rrbe
;
441 u64 instruction_sske
;
442 u64 instruction_ipte_interlock
;
443 u64 instruction_stsi
;
444 u64 instruction_stfl
;
447 u64 instruction_tprot
;
448 u64 instruction_tsch
;
450 u64 instruction_essa
;
451 u64 instruction_sthyi
;
452 u64 instruction_sigp_sense
;
453 u64 instruction_sigp_sense_running
;
454 u64 instruction_sigp_external_call
;
455 u64 instruction_sigp_emergency
;
456 u64 instruction_sigp_cond_emergency
;
457 u64 instruction_sigp_start
;
458 u64 instruction_sigp_stop
;
459 u64 instruction_sigp_stop_store_status
;
460 u64 instruction_sigp_store_status
;
461 u64 instruction_sigp_store_adtl_status
;
462 u64 instruction_sigp_arch
;
463 u64 instruction_sigp_prefix
;
464 u64 instruction_sigp_restart
;
465 u64 instruction_sigp_init_cpu_reset
;
466 u64 instruction_sigp_cpu_reset
;
467 u64 instruction_sigp_unknown
;
468 u64 instruction_diagnose_10
;
469 u64 instruction_diagnose_44
;
470 u64 instruction_diagnose_9c
;
473 u64 instruction_diagnose_258
;
474 u64 instruction_diagnose_308
;
475 u64 instruction_diagnose_500
;
476 u64 instruction_diagnose_other
;
480 #define PGM_OPERATION 0x01
481 #define PGM_PRIVILEGED_OP 0x02
482 #define PGM_EXECUTE 0x03
483 #define PGM_PROTECTION 0x04
484 #define PGM_ADDRESSING 0x05
485 #define PGM_SPECIFICATION 0x06
486 #define PGM_DATA 0x07
487 #define PGM_FIXED_POINT_OVERFLOW 0x08
488 #define PGM_FIXED_POINT_DIVIDE 0x09
489 #define PGM_DECIMAL_OVERFLOW 0x0a
490 #define PGM_DECIMAL_DIVIDE 0x0b
491 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
492 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
493 #define PGM_HFP_SIGNIFICANCE 0x0e
494 #define PGM_HFP_DIVIDE 0x0f
495 #define PGM_SEGMENT_TRANSLATION 0x10
496 #define PGM_PAGE_TRANSLATION 0x11
497 #define PGM_TRANSLATION_SPEC 0x12
498 #define PGM_SPECIAL_OPERATION 0x13
499 #define PGM_OPERAND 0x15
500 #define PGM_TRACE_TABEL 0x16
501 #define PGM_VECTOR_PROCESSING 0x1b
502 #define PGM_SPACE_SWITCH 0x1c
503 #define PGM_HFP_SQUARE_ROOT 0x1d
504 #define PGM_PC_TRANSLATION_SPEC 0x1f
505 #define PGM_AFX_TRANSLATION 0x20
506 #define PGM_ASX_TRANSLATION 0x21
507 #define PGM_LX_TRANSLATION 0x22
508 #define PGM_EX_TRANSLATION 0x23
509 #define PGM_PRIMARY_AUTHORITY 0x24
510 #define PGM_SECONDARY_AUTHORITY 0x25
511 #define PGM_LFX_TRANSLATION 0x26
512 #define PGM_LSX_TRANSLATION 0x27
513 #define PGM_ALET_SPECIFICATION 0x28
514 #define PGM_ALEN_TRANSLATION 0x29
515 #define PGM_ALE_SEQUENCE 0x2a
516 #define PGM_ASTE_VALIDITY 0x2b
517 #define PGM_ASTE_SEQUENCE 0x2c
518 #define PGM_EXTENDED_AUTHORITY 0x2d
519 #define PGM_LSTE_SEQUENCE 0x2e
520 #define PGM_ASTE_INSTANCE 0x2f
521 #define PGM_STACK_FULL 0x30
522 #define PGM_STACK_EMPTY 0x31
523 #define PGM_STACK_SPECIFICATION 0x32
524 #define PGM_STACK_TYPE 0x33
525 #define PGM_STACK_OPERATION 0x34
526 #define PGM_ASCE_TYPE 0x38
527 #define PGM_REGION_FIRST_TRANS 0x39
528 #define PGM_REGION_SECOND_TRANS 0x3a
529 #define PGM_REGION_THIRD_TRANS 0x3b
530 #define PGM_MONITOR 0x40
532 #define PGM_CRYPTO_OPERATION 0x119
534 /* irq types in ascend order of priorities */
536 IRQ_PEND_SET_PREFIX
= 0,
548 IRQ_PEND_PFAULT_DONE
,
549 IRQ_PEND_PFAULT_INIT
,
551 IRQ_PEND_EXT_SERVICE
,
552 IRQ_PEND_EXT_SERVICE_EV
,
554 IRQ_PEND_EXT_CPU_TIMER
,
555 IRQ_PEND_EXT_CLOCK_COMP
,
556 IRQ_PEND_EXT_EXTERNAL
,
557 IRQ_PEND_EXT_EMERGENCY
,
558 IRQ_PEND_EXT_MALFUNC
,
559 IRQ_PEND_EXT_IRQ_KEY
,
567 /* We have 2M for virtio device descriptor pages. Smallest amount of
568 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
570 #define KVM_S390_MAX_VIRTIO_IRQS 87381
573 * Repressible (non-floating) machine check interrupts
574 * subclass bits in MCIC
576 #define MCHK_EXTD_BIT 58
577 #define MCHK_DEGR_BIT 56
578 #define MCHK_WARN_BIT 55
579 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
580 (1UL << MCHK_EXTD_BIT) | \
581 (1UL << MCHK_WARN_BIT))
583 /* Exigent machine check interrupts subclass bits in MCIC */
584 #define MCHK_SD_BIT 63
585 #define MCHK_PD_BIT 62
586 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
588 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
589 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
590 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \
591 (1UL << IRQ_PEND_EXT_MALFUNC) | \
592 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
593 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
594 (1UL << IRQ_PEND_EXT_TIMING) | \
595 (1UL << IRQ_PEND_EXT_HOST) | \
596 (1UL << IRQ_PEND_EXT_SERVICE) | \
597 (1UL << IRQ_PEND_EXT_SERVICE_EV) | \
598 (1UL << IRQ_PEND_VIRTIO) | \
599 (1UL << IRQ_PEND_PFAULT_INIT) | \
600 (1UL << IRQ_PEND_PFAULT_DONE))
602 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
603 (1UL << IRQ_PEND_IO_ISC_1) | \
604 (1UL << IRQ_PEND_IO_ISC_2) | \
605 (1UL << IRQ_PEND_IO_ISC_3) | \
606 (1UL << IRQ_PEND_IO_ISC_4) | \
607 (1UL << IRQ_PEND_IO_ISC_5) | \
608 (1UL << IRQ_PEND_IO_ISC_6) | \
609 (1UL << IRQ_PEND_IO_ISC_7))
611 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
612 (1UL << IRQ_PEND_MCHK_EX))
614 #define IRQ_PEND_EXT_II_MASK ((1UL << IRQ_PEND_EXT_CPU_TIMER) | \
615 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
616 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
617 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
618 (1UL << IRQ_PEND_EXT_SERVICE) | \
619 (1UL << IRQ_PEND_EXT_SERVICE_EV))
621 struct kvm_s390_interrupt_info
{
622 struct list_head list
;
625 struct kvm_s390_io_info io
;
626 struct kvm_s390_ext_info ext
;
627 struct kvm_s390_pgm_info pgm
;
628 struct kvm_s390_emerg_info emerg
;
629 struct kvm_s390_extcall_info extcall
;
630 struct kvm_s390_prefix_info prefix
;
631 struct kvm_s390_stop_info stop
;
632 struct kvm_s390_mchk_info mchk
;
636 struct kvm_s390_irq_payload
{
637 struct kvm_s390_io_info io
;
638 struct kvm_s390_ext_info ext
;
639 struct kvm_s390_pgm_info pgm
;
640 struct kvm_s390_emerg_info emerg
;
641 struct kvm_s390_extcall_info extcall
;
642 struct kvm_s390_prefix_info prefix
;
643 struct kvm_s390_stop_info stop
;
644 struct kvm_s390_mchk_info mchk
;
647 struct kvm_s390_local_interrupt
{
649 DECLARE_BITMAP(sigp_emerg_pending
, KVM_MAX_VCPUS
);
650 struct kvm_s390_irq_payload irq
;
651 unsigned long pending_irqs
;
654 #define FIRQ_LIST_IO_ISC_0 0
655 #define FIRQ_LIST_IO_ISC_1 1
656 #define FIRQ_LIST_IO_ISC_2 2
657 #define FIRQ_LIST_IO_ISC_3 3
658 #define FIRQ_LIST_IO_ISC_4 4
659 #define FIRQ_LIST_IO_ISC_5 5
660 #define FIRQ_LIST_IO_ISC_6 6
661 #define FIRQ_LIST_IO_ISC_7 7
662 #define FIRQ_LIST_PFAULT 8
663 #define FIRQ_LIST_VIRTIO 9
664 #define FIRQ_LIST_COUNT 10
665 #define FIRQ_CNTR_IO 0
666 #define FIRQ_CNTR_SERVICE 1
667 #define FIRQ_CNTR_VIRTIO 2
668 #define FIRQ_CNTR_PFAULT 3
669 #define FIRQ_MAX_COUNT 4
671 /* mask the AIS mode for a given ISC */
672 #define AIS_MODE_MASK(isc) (0x80 >> isc)
674 #define KVM_S390_AIS_MODE_ALL 0
675 #define KVM_S390_AIS_MODE_SINGLE 1
677 struct kvm_s390_float_interrupt
{
678 unsigned long pending_irqs
;
679 unsigned long masked_irqs
;
681 struct list_head lists
[FIRQ_LIST_COUNT
];
682 int counters
[FIRQ_MAX_COUNT
];
683 struct kvm_s390_mchk_info mchk
;
684 struct kvm_s390_ext_info srv_signal
;
686 struct mutex ais_lock
;
691 struct kvm_hw_wp_info_arch
{
693 unsigned long phys_addr
;
698 struct kvm_hw_bp_info_arch
{
704 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
705 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
706 * arch/s390/include/uapi/asm/kvm.h
708 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000
710 #define guestdbg_enabled(vcpu) \
711 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
712 #define guestdbg_sstep_enabled(vcpu) \
713 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
714 #define guestdbg_hw_bp_enabled(vcpu) \
715 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
716 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
717 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
719 #define KVM_GUESTDBG_VALID_MASK \
720 (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\
721 KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING)
723 struct kvm_guestdbg_info_arch
{
728 struct kvm_hw_bp_info_arch
*hw_bp_info
;
729 struct kvm_hw_wp_info_arch
*hw_wp_info
;
732 unsigned long last_bp
;
735 struct kvm_s390_pv_vcpu
{
737 unsigned long stor_base
;
740 struct kvm_vcpu_arch
{
741 struct kvm_s390_sie_block
*sie_block
;
742 /* if vsie is active, currently executed shadow sie control block */
743 struct kvm_s390_sie_block
*vsie_block
;
744 unsigned int host_acrs
[NUM_ACRS
];
745 struct gs_cb
*host_gscb
;
746 struct fpu host_fpregs
;
747 struct kvm_s390_local_interrupt local_int
;
748 struct hrtimer ckc_timer
;
749 struct kvm_s390_pgm_info pgm
;
751 /* backup location for the currently enabled gmap when scheduled out */
752 struct gmap
*enabled_gmap
;
753 struct kvm_guestdbg_info_arch guestdbg
;
754 unsigned long pfault_token
;
755 unsigned long pfault_select
;
756 unsigned long pfault_compare
;
759 * The seqcount protects updates to cputm_start and sie_block.cputm,
760 * this way we can have non-blocking reads with consistent values.
761 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these
762 * values and to start/stop/enable/disable cpu timer accounting.
764 seqcount_t cputm_seqcount
;
768 struct kvm_s390_pv_vcpu pv
;
769 union diag318_info diag318_info
;
773 struct kvm_vm_stat_generic generic
;
775 u64 inject_float_mchk
;
776 u64 inject_pfault_done
;
777 u64 inject_service_signal
;
782 struct kvm_arch_memory_slot
{
785 struct s390_map_info
{
786 struct list_head list
;
792 struct s390_io_adapter
{
801 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
802 #define MAX_S390_ADAPTER_MAPS 256
804 /* maximum size of facilities and facility mask is 2k bytes */
805 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
806 #define S390_ARCH_FAC_LIST_SIZE_U64 \
807 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
808 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
809 #define S390_ARCH_FAC_MASK_SIZE_U64 \
810 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
812 struct kvm_s390_cpu_model
{
813 /* facility mask supported by kvm & hosting machine */
814 __u64 fac_mask
[S390_ARCH_FAC_LIST_SIZE_U64
];
815 struct kvm_s390_vm_cpu_subfunc subfuncs
;
816 /* facility list requested by guest (in dma page) */
820 /* subset of available UV-features for pv-guests enabled by user space */
821 struct kvm_s390_vm_cpu_uv_feat uv_feat_guest
;
824 typedef int (*crypto_hook
)(struct kvm_vcpu
*vcpu
);
826 struct kvm_s390_crypto
{
827 struct kvm_s390_crypto_cb
*crycb
;
828 struct rw_semaphore pqap_hook_rwsem
;
829 crypto_hook
*pqap_hook
;
836 #define APCB0_MASK_SIZE 1
837 struct kvm_s390_apcb0
{
838 __u64 apm
[APCB0_MASK_SIZE
]; /* 0x0000 */
839 __u64 aqm
[APCB0_MASK_SIZE
]; /* 0x0008 */
840 __u64 adm
[APCB0_MASK_SIZE
]; /* 0x0010 */
841 __u64 reserved18
; /* 0x0018 */
844 #define APCB1_MASK_SIZE 4
845 struct kvm_s390_apcb1
{
846 __u64 apm
[APCB1_MASK_SIZE
]; /* 0x0000 */
847 __u64 aqm
[APCB1_MASK_SIZE
]; /* 0x0020 */
848 __u64 adm
[APCB1_MASK_SIZE
]; /* 0x0040 */
849 __u64 reserved60
[4]; /* 0x0060 */
852 struct kvm_s390_crypto_cb
{
853 struct kvm_s390_apcb0 apcb0
; /* 0x0000 */
854 __u8 reserved20
[0x0048 - 0x0020]; /* 0x0020 */
855 __u8 dea_wrapping_key_mask
[24]; /* 0x0048 */
856 __u8 aes_wrapping_key_mask
[32]; /* 0x0060 */
857 struct kvm_s390_apcb1 apcb1
; /* 0x0080 */
860 struct kvm_s390_gisa
{
862 struct { /* common to all formats */
868 struct { /* format 0 */
879 struct { /* format 1 */
898 struct kvm_s390_gib
{
899 u32 alert_list_origin
;
908 * sie_page2 has to be allocated as DMA because fac_list, crycb and
909 * gisa need 31bit addresses in the sie control block.
912 __u64 fac_list
[S390_ARCH_FAC_LIST_SIZE_U64
]; /* 0x0000 */
913 struct kvm_s390_crypto_cb crycb
; /* 0x0800 */
914 struct kvm_s390_gisa gisa
; /* 0x0900 */
915 struct kvm
*kvm
; /* 0x0920 */
916 u8 reserved928
[0x1000 - 0x928]; /* 0x0928 */
919 struct kvm_s390_vsie
{
921 struct radix_tree_root addr_to_page
;
924 struct page
*pages
[KVM_MAX_VCPUS
];
927 struct kvm_s390_gisa_iam
{
930 u32 ref_count
[MAX_ISC
+ 1];
933 struct kvm_s390_gisa_interrupt
{
934 struct kvm_s390_gisa
*origin
;
935 struct kvm_s390_gisa_iam alert
;
936 struct hrtimer timer
;
938 DECLARE_BITMAP(kicked_mask
, KVM_MAX_VCPUS
);
944 unsigned long stor_base
;
948 struct list_head need_cleanup
;
949 struct mmu_notifier mmu_notifier
;
957 struct kvm_s390_float_interrupt float_int
;
958 struct kvm_device
*flic
;
960 unsigned long mem_limit
;
967 int user_cpu_state_ctrl
;
971 struct s390_io_adapter
*adapters
[MAX_S390_IO_ADAPTERS
];
972 wait_queue_head_t ipte_wq
;
974 struct mutex ipte_mutex
;
975 spinlock_t start_stop_lock
;
976 struct sie_page2
*sie_page2
;
977 struct kvm_s390_cpu_model model
;
978 struct kvm_s390_crypto crypto
;
979 struct kvm_s390_vsie vsie
;
983 atomic64_t cmma_dirty_pages
;
984 /* subset of available cpu features enabled by user space */
985 DECLARE_BITMAP(cpu_feat
, KVM_S390_VM_CPU_FEAT_NR_BITS
);
986 /* indexed by vcpu_idx */
987 DECLARE_BITMAP(idle_mask
, KVM_MAX_VCPUS
);
988 struct kvm_s390_gisa_interrupt gisa_int
;
989 struct kvm_s390_pv pv
;
990 struct list_head kzdev_list
;
991 spinlock_t kzdev_list_lock
;
994 #define KVM_HVA_ERR_BAD (-1UL)
995 #define KVM_HVA_ERR_RO_BAD (-2UL)
997 static inline bool kvm_is_error_hva(unsigned long addr
)
999 return IS_ERR_VALUE(addr
);
1002 #define ASYNC_PF_PER_VCPU 64
1003 struct kvm_arch_async_pf
{
1004 unsigned long pfault_token
;
1007 bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu
*vcpu
);
1009 void kvm_arch_async_page_ready(struct kvm_vcpu
*vcpu
,
1010 struct kvm_async_pf
*work
);
1012 bool kvm_arch_async_page_not_present(struct kvm_vcpu
*vcpu
,
1013 struct kvm_async_pf
*work
);
1015 void kvm_arch_async_page_present(struct kvm_vcpu
*vcpu
,
1016 struct kvm_async_pf
*work
);
1018 static inline void kvm_arch_async_page_present_queued(struct kvm_vcpu
*vcpu
) {}
1020 void kvm_arch_crypto_clear_masks(struct kvm
*kvm
);
1021 void kvm_arch_crypto_set_masks(struct kvm
*kvm
, unsigned long *apm
,
1022 unsigned long *aqm
, unsigned long *adm
);
1024 int __sie64a(phys_addr_t sie_block_phys
, struct kvm_s390_sie_block
*sie_block
, u64
*rsa
);
1026 static inline int sie64a(struct kvm_s390_sie_block
*sie_block
, u64
*rsa
)
1028 return __sie64a(virt_to_phys(sie_block
), sie_block
, rsa
);
1031 extern char sie_exit
;
1033 bool kvm_s390_pv_is_protected(struct kvm
*kvm
);
1034 bool kvm_s390_pv_cpu_is_protected(struct kvm_vcpu
*vcpu
);
1036 extern int kvm_s390_gisc_register(struct kvm
*kvm
, u32 gisc
);
1037 extern int kvm_s390_gisc_unregister(struct kvm
*kvm
, u32 gisc
);
1039 static inline void kvm_arch_sync_events(struct kvm
*kvm
) {}
1040 static inline void kvm_arch_sched_in(struct kvm_vcpu
*vcpu
, int cpu
) {}
1041 static inline void kvm_arch_free_memslot(struct kvm
*kvm
,
1042 struct kvm_memory_slot
*slot
) {}
1043 static inline void kvm_arch_memslots_updated(struct kvm
*kvm
, u64 gen
) {}
1044 static inline void kvm_arch_flush_shadow_all(struct kvm
*kvm
) {}
1045 static inline void kvm_arch_flush_shadow_memslot(struct kvm
*kvm
,
1046 struct kvm_memory_slot
*slot
) {}
1047 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu
*vcpu
) {}
1048 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu
*vcpu
) {}
1050 #define __KVM_HAVE_ARCH_VM_FREE
1051 void kvm_arch_free_vm(struct kvm
*kvm
);
1053 struct zpci_kvm_hook
{
1054 int (*kvm_register
)(void *opaque
, struct kvm
*kvm
);
1055 void (*kvm_unregister
)(void *opaque
);
1058 extern struct zpci_kvm_hook zpci_kvm_hook
;