2 * definition for kernel virtual machines on s390
4 * Copyright IBM Corp. 2008, 2009
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License (version 2 only)
8 * as published by the Free Software Foundation.
10 * Author(s): Carsten Otte <cotte@de.ibm.com>
14 #ifndef ASM_KVM_HOST_H
15 #define ASM_KVM_HOST_H
17 #include <linux/types.h>
18 #include <linux/hrtimer.h>
19 #include <linux/interrupt.h>
20 #include <linux/kvm_types.h>
21 #include <linux/kvm_host.h>
22 #include <linux/kvm.h>
23 #include <linux/seqlock.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
33 #define KVM_USER_MEM_SLOTS 32
36 * These seem to be used for allocating ->chip in the routing table,
37 * which we don't use. 4096 is an out-of-thin-air value. If we need
38 * to look at ->chip later on, we'll need to revisit this.
40 #define KVM_NR_IRQCHIPS 1
41 #define KVM_IRQCHIP_NUM_PINS 4096
42 #define KVM_HALT_POLL_NS_DEFAULT 80000
44 /* s390-specific vcpu->requests bit members */
45 #define KVM_REQ_ENABLE_IBS 8
46 #define KVM_REQ_DISABLE_IBS 9
47 #define KVM_REQ_ICPT_OPEREXC 10
49 #define SIGP_CTRL_C 0x80
50 #define SIGP_CTRL_SCN_MASK 0x3f
52 union bsca_sigp_ctrl
{
61 union esca_sigp_ctrl
{
71 union esca_sigp_ctrl sigp_ctrl
;
79 union bsca_sigp_ctrl sigp_ctrl
;
83 } __attribute__((packed
));
89 unsigned long kh
: 31;
90 unsigned long kg
: 32;
95 union ipte_control ipte_control
;
99 struct bsca_entry cpu
[KVM_S390_BSCA_CPU_SLOTS
];
100 } __attribute__((packed
));
103 union ipte_control ipte_control
;
107 struct esca_entry cpu
[KVM_S390_ESCA_CPU_SLOTS
];
110 #define CPUSTAT_STOPPED 0x80000000
111 #define CPUSTAT_WAIT 0x10000000
112 #define CPUSTAT_ECALL_PEND 0x08000000
113 #define CPUSTAT_STOP_INT 0x04000000
114 #define CPUSTAT_IO_INT 0x02000000
115 #define CPUSTAT_EXT_INT 0x01000000
116 #define CPUSTAT_RUNNING 0x00800000
117 #define CPUSTAT_RETAINED 0x00400000
118 #define CPUSTAT_TIMING_SUB 0x00020000
119 #define CPUSTAT_SIE_SUB 0x00010000
120 #define CPUSTAT_RRF 0x00008000
121 #define CPUSTAT_SLSV 0x00004000
122 #define CPUSTAT_SLSR 0x00002000
123 #define CPUSTAT_ZARCH 0x00000800
124 #define CPUSTAT_MCDS 0x00000100
125 #define CPUSTAT_KSS 0x00000200
126 #define CPUSTAT_SM 0x00000080
127 #define CPUSTAT_IBS 0x00000040
128 #define CPUSTAT_GED2 0x00000010
129 #define CPUSTAT_G 0x00000008
130 #define CPUSTAT_GED 0x00000004
131 #define CPUSTAT_J 0x00000002
132 #define CPUSTAT_P 0x00000001
134 struct kvm_s390_sie_block
{
135 atomic_t cpuflags
; /* 0x0000 */
136 __u32
: 1; /* 0x0004 */
140 __u8 reserved08
[4]; /* 0x0008 */
141 #define PROG_IN_SIE (1<<0)
142 __u32 prog0c
; /* 0x000c */
143 __u8 reserved10
[16]; /* 0x0010 */
144 #define PROG_BLOCK_SIE (1<<0)
145 #define PROG_REQUEST (1<<1)
146 atomic_t prog20
; /* 0x0020 */
147 __u8 reserved24
[4]; /* 0x0024 */
148 __u64 cputm
; /* 0x0028 */
149 __u64 ckc
; /* 0x0030 */
150 __u64 epoch
; /* 0x0038 */
151 __u32 svcc
; /* 0x0040 */
152 #define LCTL_CR0 0x8000
153 #define LCTL_CR6 0x0200
154 #define LCTL_CR9 0x0040
155 #define LCTL_CR10 0x0020
156 #define LCTL_CR11 0x0010
157 #define LCTL_CR14 0x0002
158 __u16 lctl
; /* 0x0044 */
159 __s16 icpua
; /* 0x0046 */
160 #define ICTL_OPEREXC 0x80000000
161 #define ICTL_PINT 0x20000000
162 #define ICTL_LPSW 0x00400000
163 #define ICTL_STCTL 0x00040000
164 #define ICTL_ISKE 0x00004000
165 #define ICTL_SSKE 0x00002000
166 #define ICTL_RRBE 0x00001000
167 #define ICTL_TPROT 0x00000200
168 __u32 ictl
; /* 0x0048 */
169 #define ECA_CEI 0x80000000
170 #define ECA_IB 0x40000000
171 #define ECA_SIGPI 0x10000000
172 #define ECA_MVPGI 0x01000000
173 #define ECA_VX 0x00020000
174 #define ECA_PROTEXCI 0x00002000
175 #define ECA_SII 0x00000001
176 __u32 eca
; /* 0x004c */
177 #define ICPT_INST 0x04
178 #define ICPT_PROGI 0x08
179 #define ICPT_INSTPROGI 0x0C
180 #define ICPT_EXTREQ 0x10
181 #define ICPT_EXTINT 0x14
182 #define ICPT_IOREQ 0x18
183 #define ICPT_WAIT 0x1c
184 #define ICPT_VALIDITY 0x20
185 #define ICPT_STOP 0x28
186 #define ICPT_OPEREXC 0x2C
187 #define ICPT_PARTEXEC 0x38
188 #define ICPT_IOINST 0x40
189 #define ICPT_KSS 0x5c
190 __u8 icptcode
; /* 0x0050 */
191 __u8 icptstatus
; /* 0x0051 */
192 __u16 ihcpu
; /* 0x0052 */
193 __u8 reserved54
[2]; /* 0x0054 */
194 __u16 ipa
; /* 0x0056 */
195 __u32 ipb
; /* 0x0058 */
196 __u32 scaoh
; /* 0x005c */
197 __u8 reserved60
; /* 0x0060 */
200 #define ECB_SRSI 0x04
201 #define ECB_HOSTPROTINT 0x02
202 __u8 ecb
; /* 0x0061 */
203 #define ECB2_CMMA 0x80
204 #define ECB2_IEP 0x20
205 #define ECB2_PFMFI 0x08
206 #define ECB2_ESCA 0x04
207 __u8 ecb2
; /* 0x0062 */
208 #define ECB3_DEA 0x08
209 #define ECB3_AES 0x04
211 __u8 ecb3
; /* 0x0063 */
212 __u32 scaol
; /* 0x0064 */
213 __u8 reserved68
[4]; /* 0x0068 */
214 __u32 todpr
; /* 0x006c */
215 __u8 reserved70
[16]; /* 0x0070 */
216 __u64 mso
; /* 0x0080 */
217 __u64 msl
; /* 0x0088 */
218 psw_t gpsw
; /* 0x0090 */
219 __u64 gg14
; /* 0x00a0 */
220 __u64 gg15
; /* 0x00a8 */
221 __u8 reservedb0
[20]; /* 0x00b0 */
222 __u16 extcpuaddr
; /* 0x00c4 */
223 __u16 eic
; /* 0x00c6 */
224 __u32 reservedc8
; /* 0x00c8 */
225 __u16 pgmilc
; /* 0x00cc */
226 __u16 iprcc
; /* 0x00ce */
227 __u32 dxc
; /* 0x00d0 */
228 __u16 mcn
; /* 0x00d4 */
229 __u8 perc
; /* 0x00d6 */
230 __u8 peratmid
; /* 0x00d7 */
231 __u64 peraddr
; /* 0x00d8 */
232 __u8 eai
; /* 0x00e0 */
233 __u8 peraid
; /* 0x00e1 */
234 __u8 oai
; /* 0x00e2 */
235 __u8 armid
; /* 0x00e3 */
236 __u8 reservede4
[4]; /* 0x00e4 */
237 __u64 tecmc
; /* 0x00e8 */
238 __u8 reservedf0
[12]; /* 0x00f0 */
239 #define CRYCB_FORMAT1 0x00000001
240 #define CRYCB_FORMAT2 0x00000003
241 __u32 crycbd
; /* 0x00fc */
242 __u64 gcr
[16]; /* 0x0100 */
243 __u64 gbea
; /* 0x0180 */
244 __u8 reserved188
[8]; /* 0x0188 */
245 __u64 sdnxo
; /* 0x0190 */
246 __u8 reserved198
[8]; /* 0x0198 */
247 __u32 fac
; /* 0x01a0 */
248 __u8 reserved1a4
[20]; /* 0x01a4 */
249 __u64 cbrlo
; /* 0x01b8 */
250 __u8 reserved1c0
[8]; /* 0x01c0 */
251 #define ECD_HOSTREGMGMT 0x20000000
252 __u32 ecd
; /* 0x01c8 */
253 __u8 reserved1cc
[18]; /* 0x01cc */
254 __u64 pp
; /* 0x01de */
255 __u8 reserved1e6
[2]; /* 0x01e6 */
256 __u64 itdba
; /* 0x01e8 */
257 __u64 riccbd
; /* 0x01f0 */
258 __u64 gvrd
; /* 0x01f8 */
259 } __attribute__((packed
));
261 struct kvm_s390_itdb
{
266 struct kvm_s390_sie_block sie_block
;
267 __u8 reserved200
[1024]; /* 0x0200 */
268 struct kvm_s390_itdb itdb
; /* 0x0600 */
269 __u8 reserved700
[2304]; /* 0x0700 */
272 struct kvm_vcpu_stat
{
275 u64 exit_external_request
;
276 u64 exit_external_interrupt
;
277 u64 exit_stop_request
;
279 u64 exit_instruction
;
281 u64 halt_successful_poll
;
282 u64 halt_attempted_poll
;
283 u64 halt_poll_invalid
;
285 u64 instruction_lctl
;
286 u64 instruction_lctlg
;
287 u64 instruction_stctl
;
288 u64 instruction_stctg
;
289 u64 exit_program_interruption
;
290 u64 exit_instr_and_program
;
291 u64 exit_operation_exception
;
292 u64 deliver_external_call
;
293 u64 deliver_emergency_signal
;
294 u64 deliver_service_signal
;
295 u64 deliver_virtio_interrupt
;
296 u64 deliver_stop_signal
;
297 u64 deliver_prefix_signal
;
298 u64 deliver_restart_signal
;
299 u64 deliver_program_int
;
302 u64 instruction_pfmf
;
303 u64 instruction_stidp
;
305 u64 instruction_stpx
;
306 u64 instruction_stap
;
307 u64 instruction_storage_key
;
308 u64 instruction_ipte_interlock
;
309 u64 instruction_stsch
;
310 u64 instruction_chsc
;
311 u64 instruction_stsi
;
312 u64 instruction_stfl
;
313 u64 instruction_tprot
;
315 u64 instruction_essa
;
316 u64 instruction_sthyi
;
317 u64 instruction_sigp_sense
;
318 u64 instruction_sigp_sense_running
;
319 u64 instruction_sigp_external_call
;
320 u64 instruction_sigp_emergency
;
321 u64 instruction_sigp_cond_emergency
;
322 u64 instruction_sigp_start
;
323 u64 instruction_sigp_stop
;
324 u64 instruction_sigp_stop_store_status
;
325 u64 instruction_sigp_store_status
;
326 u64 instruction_sigp_store_adtl_status
;
327 u64 instruction_sigp_arch
;
328 u64 instruction_sigp_prefix
;
329 u64 instruction_sigp_restart
;
330 u64 instruction_sigp_init_cpu_reset
;
331 u64 instruction_sigp_cpu_reset
;
332 u64 instruction_sigp_unknown
;
341 #define PGM_OPERATION 0x01
342 #define PGM_PRIVILEGED_OP 0x02
343 #define PGM_EXECUTE 0x03
344 #define PGM_PROTECTION 0x04
345 #define PGM_ADDRESSING 0x05
346 #define PGM_SPECIFICATION 0x06
347 #define PGM_DATA 0x07
348 #define PGM_FIXED_POINT_OVERFLOW 0x08
349 #define PGM_FIXED_POINT_DIVIDE 0x09
350 #define PGM_DECIMAL_OVERFLOW 0x0a
351 #define PGM_DECIMAL_DIVIDE 0x0b
352 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
353 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
354 #define PGM_HFP_SIGNIFICANCE 0x0e
355 #define PGM_HFP_DIVIDE 0x0f
356 #define PGM_SEGMENT_TRANSLATION 0x10
357 #define PGM_PAGE_TRANSLATION 0x11
358 #define PGM_TRANSLATION_SPEC 0x12
359 #define PGM_SPECIAL_OPERATION 0x13
360 #define PGM_OPERAND 0x15
361 #define PGM_TRACE_TABEL 0x16
362 #define PGM_VECTOR_PROCESSING 0x1b
363 #define PGM_SPACE_SWITCH 0x1c
364 #define PGM_HFP_SQUARE_ROOT 0x1d
365 #define PGM_PC_TRANSLATION_SPEC 0x1f
366 #define PGM_AFX_TRANSLATION 0x20
367 #define PGM_ASX_TRANSLATION 0x21
368 #define PGM_LX_TRANSLATION 0x22
369 #define PGM_EX_TRANSLATION 0x23
370 #define PGM_PRIMARY_AUTHORITY 0x24
371 #define PGM_SECONDARY_AUTHORITY 0x25
372 #define PGM_LFX_TRANSLATION 0x26
373 #define PGM_LSX_TRANSLATION 0x27
374 #define PGM_ALET_SPECIFICATION 0x28
375 #define PGM_ALEN_TRANSLATION 0x29
376 #define PGM_ALE_SEQUENCE 0x2a
377 #define PGM_ASTE_VALIDITY 0x2b
378 #define PGM_ASTE_SEQUENCE 0x2c
379 #define PGM_EXTENDED_AUTHORITY 0x2d
380 #define PGM_LSTE_SEQUENCE 0x2e
381 #define PGM_ASTE_INSTANCE 0x2f
382 #define PGM_STACK_FULL 0x30
383 #define PGM_STACK_EMPTY 0x31
384 #define PGM_STACK_SPECIFICATION 0x32
385 #define PGM_STACK_TYPE 0x33
386 #define PGM_STACK_OPERATION 0x34
387 #define PGM_ASCE_TYPE 0x38
388 #define PGM_REGION_FIRST_TRANS 0x39
389 #define PGM_REGION_SECOND_TRANS 0x3a
390 #define PGM_REGION_THIRD_TRANS 0x3b
391 #define PGM_MONITOR 0x40
393 #define PGM_CRYPTO_OPERATION 0x119
395 /* irq types in order of priority */
397 IRQ_PEND_MCHK_EX
= 0,
401 IRQ_PEND_EXT_IRQ_KEY
,
402 IRQ_PEND_EXT_MALFUNC
,
403 IRQ_PEND_EXT_EMERGENCY
,
404 IRQ_PEND_EXT_EXTERNAL
,
405 IRQ_PEND_EXT_CLOCK_COMP
,
406 IRQ_PEND_EXT_CPU_TIMER
,
408 IRQ_PEND_EXT_SERVICE
,
410 IRQ_PEND_PFAULT_INIT
,
411 IRQ_PEND_PFAULT_DONE
,
427 /* We have 2M for virtio device descriptor pages. Smallest amount of
428 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
430 #define KVM_S390_MAX_VIRTIO_IRQS 87381
433 * Repressible (non-floating) machine check interrupts
434 * subclass bits in MCIC
436 #define MCHK_EXTD_BIT 58
437 #define MCHK_DEGR_BIT 56
438 #define MCHK_WARN_BIT 55
439 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
440 (1UL << MCHK_EXTD_BIT) | \
441 (1UL << MCHK_WARN_BIT))
443 /* Exigent machine check interrupts subclass bits in MCIC */
444 #define MCHK_SD_BIT 63
445 #define MCHK_PD_BIT 62
446 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
448 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
449 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
450 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \
451 (1UL << IRQ_PEND_EXT_MALFUNC) | \
452 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
453 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
454 (1UL << IRQ_PEND_EXT_TIMING) | \
455 (1UL << IRQ_PEND_EXT_HOST) | \
456 (1UL << IRQ_PEND_EXT_SERVICE) | \
457 (1UL << IRQ_PEND_VIRTIO) | \
458 (1UL << IRQ_PEND_PFAULT_INIT) | \
459 (1UL << IRQ_PEND_PFAULT_DONE))
461 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
462 (1UL << IRQ_PEND_IO_ISC_1) | \
463 (1UL << IRQ_PEND_IO_ISC_2) | \
464 (1UL << IRQ_PEND_IO_ISC_3) | \
465 (1UL << IRQ_PEND_IO_ISC_4) | \
466 (1UL << IRQ_PEND_IO_ISC_5) | \
467 (1UL << IRQ_PEND_IO_ISC_6) | \
468 (1UL << IRQ_PEND_IO_ISC_7))
470 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
471 (1UL << IRQ_PEND_MCHK_EX))
473 struct kvm_s390_interrupt_info
{
474 struct list_head list
;
477 struct kvm_s390_io_info io
;
478 struct kvm_s390_ext_info ext
;
479 struct kvm_s390_pgm_info pgm
;
480 struct kvm_s390_emerg_info emerg
;
481 struct kvm_s390_extcall_info extcall
;
482 struct kvm_s390_prefix_info prefix
;
483 struct kvm_s390_stop_info stop
;
484 struct kvm_s390_mchk_info mchk
;
488 struct kvm_s390_irq_payload
{
489 struct kvm_s390_io_info io
;
490 struct kvm_s390_ext_info ext
;
491 struct kvm_s390_pgm_info pgm
;
492 struct kvm_s390_emerg_info emerg
;
493 struct kvm_s390_extcall_info extcall
;
494 struct kvm_s390_prefix_info prefix
;
495 struct kvm_s390_stop_info stop
;
496 struct kvm_s390_mchk_info mchk
;
499 struct kvm_s390_local_interrupt
{
501 struct kvm_s390_float_interrupt
*float_int
;
502 struct swait_queue_head
*wq
;
504 DECLARE_BITMAP(sigp_emerg_pending
, KVM_MAX_VCPUS
);
505 struct kvm_s390_irq_payload irq
;
506 unsigned long pending_irqs
;
509 #define FIRQ_LIST_IO_ISC_0 0
510 #define FIRQ_LIST_IO_ISC_1 1
511 #define FIRQ_LIST_IO_ISC_2 2
512 #define FIRQ_LIST_IO_ISC_3 3
513 #define FIRQ_LIST_IO_ISC_4 4
514 #define FIRQ_LIST_IO_ISC_5 5
515 #define FIRQ_LIST_IO_ISC_6 6
516 #define FIRQ_LIST_IO_ISC_7 7
517 #define FIRQ_LIST_PFAULT 8
518 #define FIRQ_LIST_VIRTIO 9
519 #define FIRQ_LIST_COUNT 10
520 #define FIRQ_CNTR_IO 0
521 #define FIRQ_CNTR_SERVICE 1
522 #define FIRQ_CNTR_VIRTIO 2
523 #define FIRQ_CNTR_PFAULT 3
524 #define FIRQ_MAX_COUNT 4
526 /* mask the AIS mode for a given ISC */
527 #define AIS_MODE_MASK(isc) (0x80 >> isc)
529 #define KVM_S390_AIS_MODE_ALL 0
530 #define KVM_S390_AIS_MODE_SINGLE 1
532 struct kvm_s390_float_interrupt
{
533 unsigned long pending_irqs
;
535 struct list_head lists
[FIRQ_LIST_COUNT
];
536 int counters
[FIRQ_MAX_COUNT
];
537 struct kvm_s390_mchk_info mchk
;
538 struct kvm_s390_ext_info srv_signal
;
540 unsigned long idle_mask
[BITS_TO_LONGS(KVM_MAX_VCPUS
)];
541 struct mutex ais_lock
;
546 struct kvm_hw_wp_info_arch
{
548 unsigned long phys_addr
;
553 struct kvm_hw_bp_info_arch
{
559 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
560 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
561 * arch/s390/include/uapi/asm/kvm.h
563 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000
565 #define guestdbg_enabled(vcpu) \
566 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
567 #define guestdbg_sstep_enabled(vcpu) \
568 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
569 #define guestdbg_hw_bp_enabled(vcpu) \
570 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
571 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
572 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
574 struct kvm_guestdbg_info_arch
{
579 struct kvm_hw_bp_info_arch
*hw_bp_info
;
580 struct kvm_hw_wp_info_arch
*hw_wp_info
;
583 unsigned long last_bp
;
586 struct kvm_vcpu_arch
{
587 struct kvm_s390_sie_block
*sie_block
;
588 /* if vsie is active, currently executed shadow sie control block */
589 struct kvm_s390_sie_block
*vsie_block
;
590 unsigned int host_acrs
[NUM_ACRS
];
591 struct gs_cb
*host_gscb
;
592 struct fpu host_fpregs
;
593 struct kvm_s390_local_interrupt local_int
;
594 struct hrtimer ckc_timer
;
595 struct kvm_s390_pgm_info pgm
;
597 /* backup location for the currently enabled gmap when scheduled out */
598 struct gmap
*enabled_gmap
;
599 struct kvm_guestdbg_info_arch guestdbg
;
600 unsigned long pfault_token
;
601 unsigned long pfault_select
;
602 unsigned long pfault_compare
;
605 * The seqcount protects updates to cputm_start and sie_block.cputm,
606 * this way we can have non-blocking reads with consistent values.
607 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these
608 * values and to start/stop/enable/disable cpu timer accounting.
610 seqcount_t cputm_seqcount
;
616 ulong remote_tlb_flush
;
619 struct kvm_arch_memory_slot
{
622 struct s390_map_info
{
623 struct list_head list
;
629 struct s390_io_adapter
{
636 struct rw_semaphore maps_lock
;
637 struct list_head maps
;
641 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
642 #define MAX_S390_ADAPTER_MAPS 256
644 /* maximum size of facilities and facility mask is 2k bytes */
645 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
646 #define S390_ARCH_FAC_LIST_SIZE_U64 \
647 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
648 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
649 #define S390_ARCH_FAC_MASK_SIZE_U64 \
650 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
652 struct kvm_s390_cpu_model
{
653 /* facility mask supported by kvm & hosting machine */
654 __u64 fac_mask
[S390_ARCH_FAC_LIST_SIZE_U64
];
655 /* facility list requested by guest (in dma page) */
661 struct kvm_s390_crypto
{
662 struct kvm_s390_crypto_cb
*crycb
;
668 struct kvm_s390_crypto_cb
{
669 __u8 reserved00
[72]; /* 0x0000 */
670 __u8 dea_wrapping_key_mask
[24]; /* 0x0048 */
671 __u8 aes_wrapping_key_mask
[32]; /* 0x0060 */
672 __u8 reserved80
[128]; /* 0x0080 */
676 * sie_page2 has to be allocated as DMA because fac_list and crycb need
677 * 31bit addresses in the sie control block.
680 __u64 fac_list
[S390_ARCH_FAC_LIST_SIZE_U64
]; /* 0x0000 */
681 struct kvm_s390_crypto_cb crycb
; /* 0x0800 */
682 u8 reserved900
[0x1000 - 0x900]; /* 0x0900 */
685 struct kvm_s390_vsie
{
687 struct radix_tree_root addr_to_page
;
690 struct page
*pages
[KVM_MAX_VCPUS
];
698 struct kvm_s390_float_interrupt float_int
;
699 struct kvm_device
*flic
;
701 unsigned long mem_limit
;
705 int user_cpu_state_ctrl
;
709 struct s390_io_adapter
*adapters
[MAX_S390_IO_ADAPTERS
];
710 wait_queue_head_t ipte_wq
;
712 struct mutex ipte_mutex
;
713 struct ratelimit_state sthyi_limit
;
714 spinlock_t start_stop_lock
;
715 struct sie_page2
*sie_page2
;
716 struct kvm_s390_cpu_model model
;
717 struct kvm_s390_crypto crypto
;
718 struct kvm_s390_vsie vsie
;
720 /* subset of available cpu features enabled by user space */
721 DECLARE_BITMAP(cpu_feat
, KVM_S390_VM_CPU_FEAT_NR_BITS
);
724 #define KVM_HVA_ERR_BAD (-1UL)
725 #define KVM_HVA_ERR_RO_BAD (-2UL)
727 static inline bool kvm_is_error_hva(unsigned long addr
)
729 return IS_ERR_VALUE(addr
);
732 #define ASYNC_PF_PER_VCPU 64
733 struct kvm_arch_async_pf
{
734 unsigned long pfault_token
;
737 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu
*vcpu
);
739 void kvm_arch_async_page_ready(struct kvm_vcpu
*vcpu
,
740 struct kvm_async_pf
*work
);
742 void kvm_arch_async_page_not_present(struct kvm_vcpu
*vcpu
,
743 struct kvm_async_pf
*work
);
745 void kvm_arch_async_page_present(struct kvm_vcpu
*vcpu
,
746 struct kvm_async_pf
*work
);
748 extern int sie64a(struct kvm_s390_sie_block
*, u64
*);
749 extern char sie_exit
;
751 static inline void kvm_arch_hardware_disable(void) {}
752 static inline void kvm_arch_check_processor_compat(void *rtn
) {}
753 static inline void kvm_arch_sync_events(struct kvm
*kvm
) {}
754 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu
*vcpu
) {}
755 static inline void kvm_arch_sched_in(struct kvm_vcpu
*vcpu
, int cpu
) {}
756 static inline void kvm_arch_free_memslot(struct kvm
*kvm
,
757 struct kvm_memory_slot
*free
, struct kvm_memory_slot
*dont
) {}
758 static inline void kvm_arch_memslots_updated(struct kvm
*kvm
, struct kvm_memslots
*slots
) {}
759 static inline void kvm_arch_flush_shadow_all(struct kvm
*kvm
) {}
760 static inline void kvm_arch_flush_shadow_memslot(struct kvm
*kvm
,
761 struct kvm_memory_slot
*slot
) {}
762 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu
*vcpu
) {}
763 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu
*vcpu
) {}
765 void kvm_arch_vcpu_block_finish(struct kvm_vcpu
*vcpu
);