1 /* SPDX-License-Identifier: GPL-2.0 */
3 * definition for kernel virtual machines on s390
5 * Copyright IBM Corp. 2008, 2009
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 <asm/debug.h>
23 #include <asm/fpu/api.h>
25 #include <asm/guarded_storage.h>
27 #define KVM_S390_BSCA_CPU_SLOTS 64
28 #define KVM_S390_ESCA_CPU_SLOTS 248
29 #define KVM_MAX_VCPUS 255
30 #define KVM_USER_MEM_SLOTS 32
33 * These seem to be used for allocating ->chip in the routing table,
34 * which we don't use. 4096 is an out-of-thin-air value. If we need
35 * to look at ->chip later on, we'll need to revisit this.
37 #define KVM_NR_IRQCHIPS 1
38 #define KVM_IRQCHIP_NUM_PINS 4096
39 #define KVM_HALT_POLL_NS_DEFAULT 80000
41 /* s390-specific vcpu->requests bit members */
42 #define KVM_REQ_ENABLE_IBS KVM_ARCH_REQ(0)
43 #define KVM_REQ_DISABLE_IBS KVM_ARCH_REQ(1)
44 #define KVM_REQ_ICPT_OPEREXC KVM_ARCH_REQ(2)
45 #define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3)
46 #define KVM_REQ_STOP_MIGRATION KVM_ARCH_REQ(4)
48 #define SIGP_CTRL_C 0x80
49 #define SIGP_CTRL_SCN_MASK 0x3f
51 union bsca_sigp_ctrl {
60 union esca_sigp_ctrl {
70 union esca_sigp_ctrl sigp_ctrl;
78 union bsca_sigp_ctrl sigp_ctrl;
88 unsigned long kh : 31;
89 unsigned long kg : 32;
94 union ipte_control ipte_control;
98 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS];
102 union ipte_control ipte_control;
106 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
110 * This struct is used to store some machine check info from lowcore
111 * for machine checks that happen while the guest is running.
112 * This info in host's lowcore might be overwritten by a second machine
113 * check from host when host is in the machine check's high-level handling.
114 * The size is 24 bytes.
116 struct mcck_volatile_info {
118 __u64 failing_storage_address;
119 __u32 ext_damage_code;
123 #define CPUSTAT_STOPPED 0x80000000
124 #define CPUSTAT_WAIT 0x10000000
125 #define CPUSTAT_ECALL_PEND 0x08000000
126 #define CPUSTAT_STOP_INT 0x04000000
127 #define CPUSTAT_IO_INT 0x02000000
128 #define CPUSTAT_EXT_INT 0x01000000
129 #define CPUSTAT_RUNNING 0x00800000
130 #define CPUSTAT_RETAINED 0x00400000
131 #define CPUSTAT_TIMING_SUB 0x00020000
132 #define CPUSTAT_SIE_SUB 0x00010000
133 #define CPUSTAT_RRF 0x00008000
134 #define CPUSTAT_SLSV 0x00004000
135 #define CPUSTAT_SLSR 0x00002000
136 #define CPUSTAT_ZARCH 0x00000800
137 #define CPUSTAT_MCDS 0x00000100
138 #define CPUSTAT_KSS 0x00000200
139 #define CPUSTAT_SM 0x00000080
140 #define CPUSTAT_IBS 0x00000040
141 #define CPUSTAT_GED2 0x00000010
142 #define CPUSTAT_G 0x00000008
143 #define CPUSTAT_GED 0x00000004
144 #define CPUSTAT_J 0x00000002
145 #define CPUSTAT_P 0x00000001
147 struct kvm_s390_sie_block {
148 atomic_t cpuflags; /* 0x0000 */
149 __u32 : 1; /* 0x0004 */
153 __u8 reserved08[4]; /* 0x0008 */
154 #define PROG_IN_SIE (1<<0)
155 __u32 prog0c; /* 0x000c */
156 __u8 reserved10[16]; /* 0x0010 */
157 #define PROG_BLOCK_SIE (1<<0)
158 #define PROG_REQUEST (1<<1)
159 atomic_t prog20; /* 0x0020 */
160 __u8 reserved24[4]; /* 0x0024 */
161 __u64 cputm; /* 0x0028 */
162 __u64 ckc; /* 0x0030 */
163 __u64 epoch; /* 0x0038 */
164 __u32 svcc; /* 0x0040 */
165 #define LCTL_CR0 0x8000
166 #define LCTL_CR6 0x0200
167 #define LCTL_CR9 0x0040
168 #define LCTL_CR10 0x0020
169 #define LCTL_CR11 0x0010
170 #define LCTL_CR14 0x0002
171 __u16 lctl; /* 0x0044 */
172 __s16 icpua; /* 0x0046 */
173 #define ICTL_OPEREXC 0x80000000
174 #define ICTL_PINT 0x20000000
175 #define ICTL_LPSW 0x00400000
176 #define ICTL_STCTL 0x00040000
177 #define ICTL_ISKE 0x00004000
178 #define ICTL_SSKE 0x00002000
179 #define ICTL_RRBE 0x00001000
180 #define ICTL_TPROT 0x00000200
181 __u32 ictl; /* 0x0048 */
182 #define ECA_CEI 0x80000000
183 #define ECA_IB 0x40000000
184 #define ECA_SIGPI 0x10000000
185 #define ECA_MVPGI 0x01000000
186 #define ECA_VX 0x00020000
187 #define ECA_PROTEXCI 0x00002000
188 #define ECA_SII 0x00000001
189 __u32 eca; /* 0x004c */
190 #define ICPT_INST 0x04
191 #define ICPT_PROGI 0x08
192 #define ICPT_INSTPROGI 0x0C
193 #define ICPT_EXTREQ 0x10
194 #define ICPT_EXTINT 0x14
195 #define ICPT_IOREQ 0x18
196 #define ICPT_WAIT 0x1c
197 #define ICPT_VALIDITY 0x20
198 #define ICPT_STOP 0x28
199 #define ICPT_OPEREXC 0x2C
200 #define ICPT_PARTEXEC 0x38
201 #define ICPT_IOINST 0x40
202 #define ICPT_KSS 0x5c
203 __u8 icptcode; /* 0x0050 */
204 __u8 icptstatus; /* 0x0051 */
205 __u16 ihcpu; /* 0x0052 */
206 __u8 reserved54[2]; /* 0x0054 */
207 __u16 ipa; /* 0x0056 */
208 __u32 ipb; /* 0x0058 */
209 __u32 scaoh; /* 0x005c */
210 #define FPF_BPBC 0x20
211 __u8 fpf; /* 0x0060 */
214 #define ECB_SRSI 0x04
215 #define ECB_HOSTPROTINT 0x02
216 __u8 ecb; /* 0x0061 */
217 #define ECB2_CMMA 0x80
218 #define ECB2_IEP 0x20
219 #define ECB2_PFMFI 0x08
220 #define ECB2_ESCA 0x04
221 __u8 ecb2; /* 0x0062 */
222 #define ECB3_DEA 0x08
223 #define ECB3_AES 0x04
225 __u8 ecb3; /* 0x0063 */
226 __u32 scaol; /* 0x0064 */
227 __u8 reserved68; /* 0x0068 */
228 __u8 epdx; /* 0x0069 */
229 __u8 reserved6a[2]; /* 0x006a */
230 __u32 todpr; /* 0x006c */
231 __u8 reserved70[16]; /* 0x0070 */
232 __u64 mso; /* 0x0080 */
233 __u64 msl; /* 0x0088 */
234 psw_t gpsw; /* 0x0090 */
235 __u64 gg14; /* 0x00a0 */
236 __u64 gg15; /* 0x00a8 */
237 __u8 reservedb0[20]; /* 0x00b0 */
238 __u16 extcpuaddr; /* 0x00c4 */
239 __u16 eic; /* 0x00c6 */
240 __u32 reservedc8; /* 0x00c8 */
241 __u16 pgmilc; /* 0x00cc */
242 __u16 iprcc; /* 0x00ce */
243 __u32 dxc; /* 0x00d0 */
244 __u16 mcn; /* 0x00d4 */
245 __u8 perc; /* 0x00d6 */
246 __u8 peratmid; /* 0x00d7 */
247 __u64 peraddr; /* 0x00d8 */
248 __u8 eai; /* 0x00e0 */
249 __u8 peraid; /* 0x00e1 */
250 __u8 oai; /* 0x00e2 */
251 __u8 armid; /* 0x00e3 */
252 __u8 reservede4[4]; /* 0x00e4 */
253 __u64 tecmc; /* 0x00e8 */
254 __u8 reservedf0[12]; /* 0x00f0 */
255 #define CRYCB_FORMAT1 0x00000001
256 #define CRYCB_FORMAT2 0x00000003
257 __u32 crycbd; /* 0x00fc */
258 __u64 gcr[16]; /* 0x0100 */
259 __u64 gbea; /* 0x0180 */
260 __u8 reserved188[8]; /* 0x0188 */
261 __u64 sdnxo; /* 0x0190 */
262 __u8 reserved198[8]; /* 0x0198 */
263 __u32 fac; /* 0x01a0 */
264 __u8 reserved1a4[20]; /* 0x01a4 */
265 __u64 cbrlo; /* 0x01b8 */
266 __u8 reserved1c0[8]; /* 0x01c0 */
267 #define ECD_HOSTREGMGMT 0x20000000
268 #define ECD_MEF 0x08000000
269 __u32 ecd; /* 0x01c8 */
270 __u8 reserved1cc[18]; /* 0x01cc */
271 __u64 pp; /* 0x01de */
272 __u8 reserved1e6[2]; /* 0x01e6 */
273 __u64 itdba; /* 0x01e8 */
274 __u64 riccbd; /* 0x01f0 */
275 __u64 gvrd; /* 0x01f8 */
276 } __attribute__((packed));
278 struct kvm_s390_itdb {
283 struct kvm_s390_sie_block sie_block;
284 struct mcck_volatile_info mcck_info; /* 0x0200 */
285 __u8 reserved218[1000]; /* 0x0218 */
286 struct kvm_s390_itdb itdb; /* 0x0600 */
287 __u8 reserved700[2304]; /* 0x0700 */
290 struct kvm_vcpu_stat {
293 u64 exit_external_request;
294 u64 exit_external_interrupt;
295 u64 exit_stop_request;
297 u64 exit_instruction;
299 u64 halt_successful_poll;
300 u64 halt_attempted_poll;
301 u64 halt_poll_invalid;
303 u64 instruction_lctl;
304 u64 instruction_lctlg;
305 u64 instruction_stctl;
306 u64 instruction_stctg;
307 u64 exit_program_interruption;
308 u64 exit_instr_and_program;
309 u64 exit_operation_exception;
310 u64 deliver_external_call;
311 u64 deliver_emergency_signal;
312 u64 deliver_service_signal;
313 u64 deliver_virtio_interrupt;
314 u64 deliver_stop_signal;
315 u64 deliver_prefix_signal;
316 u64 deliver_restart_signal;
317 u64 deliver_program_int;
320 u64 instruction_pfmf;
321 u64 instruction_stidp;
323 u64 instruction_stpx;
324 u64 instruction_stap;
325 u64 instruction_storage_key;
326 u64 instruction_ipte_interlock;
327 u64 instruction_stsch;
328 u64 instruction_chsc;
329 u64 instruction_stsi;
330 u64 instruction_stfl;
331 u64 instruction_tprot;
333 u64 instruction_essa;
334 u64 instruction_sthyi;
335 u64 instruction_sigp_sense;
336 u64 instruction_sigp_sense_running;
337 u64 instruction_sigp_external_call;
338 u64 instruction_sigp_emergency;
339 u64 instruction_sigp_cond_emergency;
340 u64 instruction_sigp_start;
341 u64 instruction_sigp_stop;
342 u64 instruction_sigp_stop_store_status;
343 u64 instruction_sigp_store_status;
344 u64 instruction_sigp_store_adtl_status;
345 u64 instruction_sigp_arch;
346 u64 instruction_sigp_prefix;
347 u64 instruction_sigp_restart;
348 u64 instruction_sigp_init_cpu_reset;
349 u64 instruction_sigp_cpu_reset;
350 u64 instruction_sigp_unknown;
359 #define PGM_OPERATION 0x01
360 #define PGM_PRIVILEGED_OP 0x02
361 #define PGM_EXECUTE 0x03
362 #define PGM_PROTECTION 0x04
363 #define PGM_ADDRESSING 0x05
364 #define PGM_SPECIFICATION 0x06
365 #define PGM_DATA 0x07
366 #define PGM_FIXED_POINT_OVERFLOW 0x08
367 #define PGM_FIXED_POINT_DIVIDE 0x09
368 #define PGM_DECIMAL_OVERFLOW 0x0a
369 #define PGM_DECIMAL_DIVIDE 0x0b
370 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
371 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
372 #define PGM_HFP_SIGNIFICANCE 0x0e
373 #define PGM_HFP_DIVIDE 0x0f
374 #define PGM_SEGMENT_TRANSLATION 0x10
375 #define PGM_PAGE_TRANSLATION 0x11
376 #define PGM_TRANSLATION_SPEC 0x12
377 #define PGM_SPECIAL_OPERATION 0x13
378 #define PGM_OPERAND 0x15
379 #define PGM_TRACE_TABEL 0x16
380 #define PGM_VECTOR_PROCESSING 0x1b
381 #define PGM_SPACE_SWITCH 0x1c
382 #define PGM_HFP_SQUARE_ROOT 0x1d
383 #define PGM_PC_TRANSLATION_SPEC 0x1f
384 #define PGM_AFX_TRANSLATION 0x20
385 #define PGM_ASX_TRANSLATION 0x21
386 #define PGM_LX_TRANSLATION 0x22
387 #define PGM_EX_TRANSLATION 0x23
388 #define PGM_PRIMARY_AUTHORITY 0x24
389 #define PGM_SECONDARY_AUTHORITY 0x25
390 #define PGM_LFX_TRANSLATION 0x26
391 #define PGM_LSX_TRANSLATION 0x27
392 #define PGM_ALET_SPECIFICATION 0x28
393 #define PGM_ALEN_TRANSLATION 0x29
394 #define PGM_ALE_SEQUENCE 0x2a
395 #define PGM_ASTE_VALIDITY 0x2b
396 #define PGM_ASTE_SEQUENCE 0x2c
397 #define PGM_EXTENDED_AUTHORITY 0x2d
398 #define PGM_LSTE_SEQUENCE 0x2e
399 #define PGM_ASTE_INSTANCE 0x2f
400 #define PGM_STACK_FULL 0x30
401 #define PGM_STACK_EMPTY 0x31
402 #define PGM_STACK_SPECIFICATION 0x32
403 #define PGM_STACK_TYPE 0x33
404 #define PGM_STACK_OPERATION 0x34
405 #define PGM_ASCE_TYPE 0x38
406 #define PGM_REGION_FIRST_TRANS 0x39
407 #define PGM_REGION_SECOND_TRANS 0x3a
408 #define PGM_REGION_THIRD_TRANS 0x3b
409 #define PGM_MONITOR 0x40
411 #define PGM_CRYPTO_OPERATION 0x119
413 /* irq types in order of priority */
415 IRQ_PEND_MCHK_EX = 0,
419 IRQ_PEND_EXT_IRQ_KEY,
420 IRQ_PEND_EXT_MALFUNC,
421 IRQ_PEND_EXT_EMERGENCY,
422 IRQ_PEND_EXT_EXTERNAL,
423 IRQ_PEND_EXT_CLOCK_COMP,
424 IRQ_PEND_EXT_CPU_TIMER,
426 IRQ_PEND_EXT_SERVICE,
428 IRQ_PEND_PFAULT_INIT,
429 IRQ_PEND_PFAULT_DONE,
445 /* We have 2M for virtio device descriptor pages. Smallest amount of
446 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
448 #define KVM_S390_MAX_VIRTIO_IRQS 87381
451 * Repressible (non-floating) machine check interrupts
452 * subclass bits in MCIC
454 #define MCHK_EXTD_BIT 58
455 #define MCHK_DEGR_BIT 56
456 #define MCHK_WARN_BIT 55
457 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
458 (1UL << MCHK_EXTD_BIT) | \
459 (1UL << MCHK_WARN_BIT))
461 /* Exigent machine check interrupts subclass bits in MCIC */
462 #define MCHK_SD_BIT 63
463 #define MCHK_PD_BIT 62
464 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
466 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
467 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
468 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \
469 (1UL << IRQ_PEND_EXT_MALFUNC) | \
470 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
471 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
472 (1UL << IRQ_PEND_EXT_TIMING) | \
473 (1UL << IRQ_PEND_EXT_HOST) | \
474 (1UL << IRQ_PEND_EXT_SERVICE) | \
475 (1UL << IRQ_PEND_VIRTIO) | \
476 (1UL << IRQ_PEND_PFAULT_INIT) | \
477 (1UL << IRQ_PEND_PFAULT_DONE))
479 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
480 (1UL << IRQ_PEND_IO_ISC_1) | \
481 (1UL << IRQ_PEND_IO_ISC_2) | \
482 (1UL << IRQ_PEND_IO_ISC_3) | \
483 (1UL << IRQ_PEND_IO_ISC_4) | \
484 (1UL << IRQ_PEND_IO_ISC_5) | \
485 (1UL << IRQ_PEND_IO_ISC_6) | \
486 (1UL << IRQ_PEND_IO_ISC_7))
488 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
489 (1UL << IRQ_PEND_MCHK_EX))
491 struct kvm_s390_interrupt_info {
492 struct list_head list;
495 struct kvm_s390_io_info io;
496 struct kvm_s390_ext_info ext;
497 struct kvm_s390_pgm_info pgm;
498 struct kvm_s390_emerg_info emerg;
499 struct kvm_s390_extcall_info extcall;
500 struct kvm_s390_prefix_info prefix;
501 struct kvm_s390_stop_info stop;
502 struct kvm_s390_mchk_info mchk;
506 struct kvm_s390_irq_payload {
507 struct kvm_s390_io_info io;
508 struct kvm_s390_ext_info ext;
509 struct kvm_s390_pgm_info pgm;
510 struct kvm_s390_emerg_info emerg;
511 struct kvm_s390_extcall_info extcall;
512 struct kvm_s390_prefix_info prefix;
513 struct kvm_s390_stop_info stop;
514 struct kvm_s390_mchk_info mchk;
517 struct kvm_s390_local_interrupt {
519 struct kvm_s390_float_interrupt *float_int;
520 struct swait_queue_head *wq;
522 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
523 struct kvm_s390_irq_payload irq;
524 unsigned long pending_irqs;
527 #define FIRQ_LIST_IO_ISC_0 0
528 #define FIRQ_LIST_IO_ISC_1 1
529 #define FIRQ_LIST_IO_ISC_2 2
530 #define FIRQ_LIST_IO_ISC_3 3
531 #define FIRQ_LIST_IO_ISC_4 4
532 #define FIRQ_LIST_IO_ISC_5 5
533 #define FIRQ_LIST_IO_ISC_6 6
534 #define FIRQ_LIST_IO_ISC_7 7
535 #define FIRQ_LIST_PFAULT 8
536 #define FIRQ_LIST_VIRTIO 9
537 #define FIRQ_LIST_COUNT 10
538 #define FIRQ_CNTR_IO 0
539 #define FIRQ_CNTR_SERVICE 1
540 #define FIRQ_CNTR_VIRTIO 2
541 #define FIRQ_CNTR_PFAULT 3
542 #define FIRQ_MAX_COUNT 4
544 /* mask the AIS mode for a given ISC */
545 #define AIS_MODE_MASK(isc) (0x80 >> isc)
547 #define KVM_S390_AIS_MODE_ALL 0
548 #define KVM_S390_AIS_MODE_SINGLE 1
550 struct kvm_s390_float_interrupt {
551 unsigned long pending_irqs;
553 struct list_head lists[FIRQ_LIST_COUNT];
554 int counters[FIRQ_MAX_COUNT];
555 struct kvm_s390_mchk_info mchk;
556 struct kvm_s390_ext_info srv_signal;
558 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
559 struct mutex ais_lock;
564 struct kvm_hw_wp_info_arch {
566 unsigned long phys_addr;
571 struct kvm_hw_bp_info_arch {
577 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
578 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
579 * arch/s390/include/uapi/asm/kvm.h
581 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000
583 #define guestdbg_enabled(vcpu) \
584 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
585 #define guestdbg_sstep_enabled(vcpu) \
586 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
587 #define guestdbg_hw_bp_enabled(vcpu) \
588 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
589 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
590 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
592 struct kvm_guestdbg_info_arch {
597 struct kvm_hw_bp_info_arch *hw_bp_info;
598 struct kvm_hw_wp_info_arch *hw_wp_info;
601 unsigned long last_bp;
604 struct kvm_vcpu_arch {
605 struct kvm_s390_sie_block *sie_block;
606 /* if vsie is active, currently executed shadow sie control block */
607 struct kvm_s390_sie_block *vsie_block;
608 unsigned int host_acrs[NUM_ACRS];
609 struct gs_cb *host_gscb;
610 struct fpu host_fpregs;
611 struct kvm_s390_local_interrupt local_int;
612 struct hrtimer ckc_timer;
613 struct kvm_s390_pgm_info pgm;
615 /* backup location for the currently enabled gmap when scheduled out */
616 struct gmap *enabled_gmap;
617 struct kvm_guestdbg_info_arch guestdbg;
618 unsigned long pfault_token;
619 unsigned long pfault_select;
620 unsigned long pfault_compare;
623 * The seqcount protects updates to cputm_start and sie_block.cputm,
624 * this way we can have non-blocking reads with consistent values.
625 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these
626 * values and to start/stop/enable/disable cpu timer accounting.
628 seqcount_t cputm_seqcount;
634 ulong remote_tlb_flush;
637 struct kvm_arch_memory_slot {
640 struct s390_map_info {
641 struct list_head list;
647 struct s390_io_adapter {
654 struct rw_semaphore maps_lock;
655 struct list_head maps;
659 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
660 #define MAX_S390_ADAPTER_MAPS 256
662 /* maximum size of facilities and facility mask is 2k bytes */
663 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
664 #define S390_ARCH_FAC_LIST_SIZE_U64 \
665 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
666 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
667 #define S390_ARCH_FAC_MASK_SIZE_U64 \
668 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
670 struct kvm_s390_cpu_model {
671 /* facility mask supported by kvm & hosting machine */
672 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
673 /* facility list requested by guest (in dma page) */
679 struct kvm_s390_crypto {
680 struct kvm_s390_crypto_cb *crycb;
686 #define APCB0_MASK_SIZE 1
687 struct kvm_s390_apcb0 {
688 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */
689 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */
690 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */
691 __u64 reserved18; /* 0x0018 */
694 #define APCB1_MASK_SIZE 4
695 struct kvm_s390_apcb1 {
696 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */
697 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */
698 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */
699 __u64 reserved60[4]; /* 0x0060 */
702 struct kvm_s390_crypto_cb {
703 struct kvm_s390_apcb0 apcb0; /* 0x0000 */
704 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */
705 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */
706 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */
707 struct kvm_s390_apcb1 apcb1; /* 0x0080 */
711 * sie_page2 has to be allocated as DMA because fac_list and crycb need
712 * 31bit addresses in the sie control block.
715 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */
716 struct kvm_s390_crypto_cb crycb; /* 0x0800 */
717 u8 reserved900[0x1000 - 0x900]; /* 0x0900 */
720 struct kvm_s390_vsie {
722 struct radix_tree_root addr_to_page;
725 struct page *pages[KVM_MAX_VCPUS];
728 struct kvm_s390_migration_state {
729 unsigned long bitmap_size; /* in bits (number of guest pages) */
730 atomic64_t dirty_pages; /* number of dirty pages */
731 unsigned long *pgste_bitmap;
739 struct kvm_s390_float_interrupt float_int;
740 struct kvm_device *flic;
742 unsigned long mem_limit;
746 int user_cpu_state_ctrl;
750 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
751 wait_queue_head_t ipte_wq;
753 struct mutex ipte_mutex;
754 spinlock_t start_stop_lock;
755 struct sie_page2 *sie_page2;
756 struct kvm_s390_cpu_model model;
757 struct kvm_s390_crypto crypto;
758 struct kvm_s390_vsie vsie;
761 struct kvm_s390_migration_state *migration_state;
762 /* subset of available cpu features enabled by user space */
763 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);
766 #define KVM_HVA_ERR_BAD (-1UL)
767 #define KVM_HVA_ERR_RO_BAD (-2UL)
769 static inline bool kvm_is_error_hva(unsigned long addr)
771 return IS_ERR_VALUE(addr);
774 #define ASYNC_PF_PER_VCPU 64
775 struct kvm_arch_async_pf {
776 unsigned long pfault_token;
779 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
781 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
782 struct kvm_async_pf *work);
784 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
785 struct kvm_async_pf *work);
787 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
788 struct kvm_async_pf *work);
790 extern int sie64a(struct kvm_s390_sie_block *, u64 *);
791 extern char sie_exit;
793 static inline void kvm_arch_hardware_disable(void) {}
794 static inline void kvm_arch_check_processor_compat(void *rtn) {}
795 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
796 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
797 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
798 static inline void kvm_arch_free_memslot(struct kvm *kvm,
799 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
800 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
801 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
802 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
803 struct kvm_memory_slot *slot) {}
804 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
805 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
807 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu);