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 <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)
47 #define KVM_REQ_VSIE_RESTART KVM_ARCH_REQ(5)
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;
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];
103 union ipte_control ipte_control;
107 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
111 * This struct is used to store some machine check info from lowcore
112 * for machine checks that happen while the guest is running.
113 * This info in host's lowcore might be overwritten by a second machine
114 * check from host when host is in the machine check's high-level handling.
115 * The size is 24 bytes.
117 struct mcck_volatile_info {
119 __u64 failing_storage_address;
120 __u32 ext_damage_code;
124 #define CPUSTAT_STOPPED 0x80000000
125 #define CPUSTAT_WAIT 0x10000000
126 #define CPUSTAT_ECALL_PEND 0x08000000
127 #define CPUSTAT_STOP_INT 0x04000000
128 #define CPUSTAT_IO_INT 0x02000000
129 #define CPUSTAT_EXT_INT 0x01000000
130 #define CPUSTAT_RUNNING 0x00800000
131 #define CPUSTAT_RETAINED 0x00400000
132 #define CPUSTAT_TIMING_SUB 0x00020000
133 #define CPUSTAT_SIE_SUB 0x00010000
134 #define CPUSTAT_RRF 0x00008000
135 #define CPUSTAT_SLSV 0x00004000
136 #define CPUSTAT_SLSR 0x00002000
137 #define CPUSTAT_ZARCH 0x00000800
138 #define CPUSTAT_MCDS 0x00000100
139 #define CPUSTAT_KSS 0x00000200
140 #define CPUSTAT_SM 0x00000080
141 #define CPUSTAT_IBS 0x00000040
142 #define CPUSTAT_GED2 0x00000010
143 #define CPUSTAT_G 0x00000008
144 #define CPUSTAT_GED 0x00000004
145 #define CPUSTAT_J 0x00000002
146 #define CPUSTAT_P 0x00000001
148 struct kvm_s390_sie_block {
149 atomic_t cpuflags; /* 0x0000 */
150 __u32 : 1; /* 0x0004 */
154 __u8 reserved08[4]; /* 0x0008 */
155 #define PROG_IN_SIE (1<<0)
156 __u32 prog0c; /* 0x000c */
157 __u8 reserved10[16]; /* 0x0010 */
158 #define PROG_BLOCK_SIE (1<<0)
159 #define PROG_REQUEST (1<<1)
160 atomic_t prog20; /* 0x0020 */
161 __u8 reserved24[4]; /* 0x0024 */
162 __u64 cputm; /* 0x0028 */
163 __u64 ckc; /* 0x0030 */
164 __u64 epoch; /* 0x0038 */
165 __u32 svcc; /* 0x0040 */
166 #define LCTL_CR0 0x8000
167 #define LCTL_CR6 0x0200
168 #define LCTL_CR9 0x0040
169 #define LCTL_CR10 0x0020
170 #define LCTL_CR11 0x0010
171 #define LCTL_CR14 0x0002
172 __u16 lctl; /* 0x0044 */
173 __s16 icpua; /* 0x0046 */
174 #define ICTL_OPEREXC 0x80000000
175 #define ICTL_PINT 0x20000000
176 #define ICTL_LPSW 0x00400000
177 #define ICTL_STCTL 0x00040000
178 #define ICTL_ISKE 0x00004000
179 #define ICTL_SSKE 0x00002000
180 #define ICTL_RRBE 0x00001000
181 #define ICTL_TPROT 0x00000200
182 __u32 ictl; /* 0x0048 */
183 #define ECA_CEI 0x80000000
184 #define ECA_IB 0x40000000
185 #define ECA_SIGPI 0x10000000
186 #define ECA_MVPGI 0x01000000
187 #define ECA_AIV 0x00200000
188 #define ECA_VX 0x00020000
189 #define ECA_PROTEXCI 0x00002000
190 #define ECA_APIE 0x00000008
191 #define ECA_SII 0x00000001
192 __u32 eca; /* 0x004c */
193 #define ICPT_INST 0x04
194 #define ICPT_PROGI 0x08
195 #define ICPT_INSTPROGI 0x0C
196 #define ICPT_EXTREQ 0x10
197 #define ICPT_EXTINT 0x14
198 #define ICPT_IOREQ 0x18
199 #define ICPT_WAIT 0x1c
200 #define ICPT_VALIDITY 0x20
201 #define ICPT_STOP 0x28
202 #define ICPT_OPEREXC 0x2C
203 #define ICPT_PARTEXEC 0x38
204 #define ICPT_IOINST 0x40
205 #define ICPT_KSS 0x5c
206 __u8 icptcode; /* 0x0050 */
207 __u8 icptstatus; /* 0x0051 */
208 __u16 ihcpu; /* 0x0052 */
209 __u8 reserved54[2]; /* 0x0054 */
210 __u16 ipa; /* 0x0056 */
211 __u32 ipb; /* 0x0058 */
212 __u32 scaoh; /* 0x005c */
213 #define FPF_BPBC 0x20
214 __u8 fpf; /* 0x0060 */
217 #define ECB_SRSI 0x04
218 #define ECB_HOSTPROTINT 0x02
219 __u8 ecb; /* 0x0061 */
220 #define ECB2_CMMA 0x80
221 #define ECB2_IEP 0x20
222 #define ECB2_PFMFI 0x08
223 #define ECB2_ESCA 0x04
224 __u8 ecb2; /* 0x0062 */
225 #define ECB3_DEA 0x08
226 #define ECB3_AES 0x04
228 __u8 ecb3; /* 0x0063 */
229 __u32 scaol; /* 0x0064 */
230 __u8 reserved68; /* 0x0068 */
231 __u8 epdx; /* 0x0069 */
232 __u8 reserved6a[2]; /* 0x006a */
233 __u32 todpr; /* 0x006c */
234 #define GISA_FORMAT1 0x00000001
235 __u32 gd; /* 0x0070 */
236 __u8 reserved74[12]; /* 0x0074 */
237 __u64 mso; /* 0x0080 */
238 __u64 msl; /* 0x0088 */
239 psw_t gpsw; /* 0x0090 */
240 __u64 gg14; /* 0x00a0 */
241 __u64 gg15; /* 0x00a8 */
242 __u8 reservedb0[8]; /* 0x00b0 */
244 #define HPID_VSIE 0x5
245 __u8 hpid; /* 0x00b8 */
246 __u8 reservedb9[11]; /* 0x00b9 */
247 __u16 extcpuaddr; /* 0x00c4 */
248 __u16 eic; /* 0x00c6 */
249 __u32 reservedc8; /* 0x00c8 */
250 __u16 pgmilc; /* 0x00cc */
251 __u16 iprcc; /* 0x00ce */
252 __u32 dxc; /* 0x00d0 */
253 __u16 mcn; /* 0x00d4 */
254 __u8 perc; /* 0x00d6 */
255 __u8 peratmid; /* 0x00d7 */
256 __u64 peraddr; /* 0x00d8 */
257 __u8 eai; /* 0x00e0 */
258 __u8 peraid; /* 0x00e1 */
259 __u8 oai; /* 0x00e2 */
260 __u8 armid; /* 0x00e3 */
261 __u8 reservede4[4]; /* 0x00e4 */
262 __u64 tecmc; /* 0x00e8 */
263 __u8 reservedf0[12]; /* 0x00f0 */
264 #define CRYCB_FORMAT_MASK 0x00000003
265 #define CRYCB_FORMAT0 0x00000000
266 #define CRYCB_FORMAT1 0x00000001
267 #define CRYCB_FORMAT2 0x00000003
268 __u32 crycbd; /* 0x00fc */
269 __u64 gcr[16]; /* 0x0100 */
270 __u64 gbea; /* 0x0180 */
271 __u8 reserved188[8]; /* 0x0188 */
272 __u64 sdnxo; /* 0x0190 */
273 __u8 reserved198[8]; /* 0x0198 */
274 __u32 fac; /* 0x01a0 */
275 __u8 reserved1a4[20]; /* 0x01a4 */
276 __u64 cbrlo; /* 0x01b8 */
277 __u8 reserved1c0[8]; /* 0x01c0 */
278 #define ECD_HOSTREGMGMT 0x20000000
279 #define ECD_MEF 0x08000000
280 #define ECD_ETOKENF 0x02000000
281 __u32 ecd; /* 0x01c8 */
282 __u8 reserved1cc[18]; /* 0x01cc */
283 __u64 pp; /* 0x01de */
284 __u8 reserved1e6[2]; /* 0x01e6 */
285 __u64 itdba; /* 0x01e8 */
286 __u64 riccbd; /* 0x01f0 */
287 __u64 gvrd; /* 0x01f8 */
288 } __attribute__((packed));
290 struct kvm_s390_itdb {
295 struct kvm_s390_sie_block sie_block;
296 struct mcck_volatile_info mcck_info; /* 0x0200 */
297 __u8 reserved218[1000]; /* 0x0218 */
298 struct kvm_s390_itdb itdb; /* 0x0600 */
299 __u8 reserved700[2304]; /* 0x0700 */
302 struct kvm_vcpu_stat {
305 u64 exit_external_request;
307 u64 exit_external_interrupt;
308 u64 exit_stop_request;
310 u64 exit_instruction;
312 u64 halt_successful_poll;
313 u64 halt_attempted_poll;
314 u64 halt_poll_invalid;
316 u64 instruction_lctl;
317 u64 instruction_lctlg;
318 u64 instruction_stctl;
319 u64 instruction_stctg;
320 u64 exit_program_interruption;
321 u64 exit_instr_and_program;
322 u64 exit_operation_exception;
325 u64 deliver_external_call;
326 u64 deliver_emergency_signal;
327 u64 deliver_service_signal;
329 u64 deliver_stop_signal;
330 u64 deliver_prefix_signal;
331 u64 deliver_restart_signal;
334 u64 deliver_machine_check;
338 u64 inject_external_call;
339 u64 inject_emergency_signal;
341 u64 inject_pfault_init;
344 u64 inject_set_prefix;
345 u64 inject_stop_signal;
346 u64 instruction_epsw;
348 u64 instruction_io_other;
349 u64 instruction_lpsw;
350 u64 instruction_lpswe;
351 u64 instruction_pfmf;
352 u64 instruction_ptff;
354 u64 instruction_sckpf;
355 u64 instruction_stidp;
357 u64 instruction_stpx;
358 u64 instruction_stap;
359 u64 instruction_iske;
361 u64 instruction_rrbe;
362 u64 instruction_sske;
363 u64 instruction_ipte_interlock;
364 u64 instruction_stsi;
365 u64 instruction_stfl;
368 u64 instruction_tprot;
369 u64 instruction_tsch;
371 u64 instruction_essa;
372 u64 instruction_sthyi;
373 u64 instruction_sigp_sense;
374 u64 instruction_sigp_sense_running;
375 u64 instruction_sigp_external_call;
376 u64 instruction_sigp_emergency;
377 u64 instruction_sigp_cond_emergency;
378 u64 instruction_sigp_start;
379 u64 instruction_sigp_stop;
380 u64 instruction_sigp_stop_store_status;
381 u64 instruction_sigp_store_status;
382 u64 instruction_sigp_store_adtl_status;
383 u64 instruction_sigp_arch;
384 u64 instruction_sigp_prefix;
385 u64 instruction_sigp_restart;
386 u64 instruction_sigp_init_cpu_reset;
387 u64 instruction_sigp_cpu_reset;
388 u64 instruction_sigp_unknown;
398 #define PGM_OPERATION 0x01
399 #define PGM_PRIVILEGED_OP 0x02
400 #define PGM_EXECUTE 0x03
401 #define PGM_PROTECTION 0x04
402 #define PGM_ADDRESSING 0x05
403 #define PGM_SPECIFICATION 0x06
404 #define PGM_DATA 0x07
405 #define PGM_FIXED_POINT_OVERFLOW 0x08
406 #define PGM_FIXED_POINT_DIVIDE 0x09
407 #define PGM_DECIMAL_OVERFLOW 0x0a
408 #define PGM_DECIMAL_DIVIDE 0x0b
409 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
410 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
411 #define PGM_HFP_SIGNIFICANCE 0x0e
412 #define PGM_HFP_DIVIDE 0x0f
413 #define PGM_SEGMENT_TRANSLATION 0x10
414 #define PGM_PAGE_TRANSLATION 0x11
415 #define PGM_TRANSLATION_SPEC 0x12
416 #define PGM_SPECIAL_OPERATION 0x13
417 #define PGM_OPERAND 0x15
418 #define PGM_TRACE_TABEL 0x16
419 #define PGM_VECTOR_PROCESSING 0x1b
420 #define PGM_SPACE_SWITCH 0x1c
421 #define PGM_HFP_SQUARE_ROOT 0x1d
422 #define PGM_PC_TRANSLATION_SPEC 0x1f
423 #define PGM_AFX_TRANSLATION 0x20
424 #define PGM_ASX_TRANSLATION 0x21
425 #define PGM_LX_TRANSLATION 0x22
426 #define PGM_EX_TRANSLATION 0x23
427 #define PGM_PRIMARY_AUTHORITY 0x24
428 #define PGM_SECONDARY_AUTHORITY 0x25
429 #define PGM_LFX_TRANSLATION 0x26
430 #define PGM_LSX_TRANSLATION 0x27
431 #define PGM_ALET_SPECIFICATION 0x28
432 #define PGM_ALEN_TRANSLATION 0x29
433 #define PGM_ALE_SEQUENCE 0x2a
434 #define PGM_ASTE_VALIDITY 0x2b
435 #define PGM_ASTE_SEQUENCE 0x2c
436 #define PGM_EXTENDED_AUTHORITY 0x2d
437 #define PGM_LSTE_SEQUENCE 0x2e
438 #define PGM_ASTE_INSTANCE 0x2f
439 #define PGM_STACK_FULL 0x30
440 #define PGM_STACK_EMPTY 0x31
441 #define PGM_STACK_SPECIFICATION 0x32
442 #define PGM_STACK_TYPE 0x33
443 #define PGM_STACK_OPERATION 0x34
444 #define PGM_ASCE_TYPE 0x38
445 #define PGM_REGION_FIRST_TRANS 0x39
446 #define PGM_REGION_SECOND_TRANS 0x3a
447 #define PGM_REGION_THIRD_TRANS 0x3b
448 #define PGM_MONITOR 0x40
450 #define PGM_CRYPTO_OPERATION 0x119
452 /* irq types in ascend order of priorities */
454 IRQ_PEND_SET_PREFIX = 0,
466 IRQ_PEND_PFAULT_DONE,
467 IRQ_PEND_PFAULT_INIT,
469 IRQ_PEND_EXT_SERVICE,
471 IRQ_PEND_EXT_CPU_TIMER,
472 IRQ_PEND_EXT_CLOCK_COMP,
473 IRQ_PEND_EXT_EXTERNAL,
474 IRQ_PEND_EXT_EMERGENCY,
475 IRQ_PEND_EXT_MALFUNC,
476 IRQ_PEND_EXT_IRQ_KEY,
484 /* We have 2M for virtio device descriptor pages. Smallest amount of
485 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
487 #define KVM_S390_MAX_VIRTIO_IRQS 87381
490 * Repressible (non-floating) machine check interrupts
491 * subclass bits in MCIC
493 #define MCHK_EXTD_BIT 58
494 #define MCHK_DEGR_BIT 56
495 #define MCHK_WARN_BIT 55
496 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
497 (1UL << MCHK_EXTD_BIT) | \
498 (1UL << MCHK_WARN_BIT))
500 /* Exigent machine check interrupts subclass bits in MCIC */
501 #define MCHK_SD_BIT 63
502 #define MCHK_PD_BIT 62
503 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
505 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
506 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
507 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \
508 (1UL << IRQ_PEND_EXT_MALFUNC) | \
509 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
510 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
511 (1UL << IRQ_PEND_EXT_TIMING) | \
512 (1UL << IRQ_PEND_EXT_HOST) | \
513 (1UL << IRQ_PEND_EXT_SERVICE) | \
514 (1UL << IRQ_PEND_VIRTIO) | \
515 (1UL << IRQ_PEND_PFAULT_INIT) | \
516 (1UL << IRQ_PEND_PFAULT_DONE))
518 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
519 (1UL << IRQ_PEND_IO_ISC_1) | \
520 (1UL << IRQ_PEND_IO_ISC_2) | \
521 (1UL << IRQ_PEND_IO_ISC_3) | \
522 (1UL << IRQ_PEND_IO_ISC_4) | \
523 (1UL << IRQ_PEND_IO_ISC_5) | \
524 (1UL << IRQ_PEND_IO_ISC_6) | \
525 (1UL << IRQ_PEND_IO_ISC_7))
527 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
528 (1UL << IRQ_PEND_MCHK_EX))
530 struct kvm_s390_interrupt_info {
531 struct list_head list;
534 struct kvm_s390_io_info io;
535 struct kvm_s390_ext_info ext;
536 struct kvm_s390_pgm_info pgm;
537 struct kvm_s390_emerg_info emerg;
538 struct kvm_s390_extcall_info extcall;
539 struct kvm_s390_prefix_info prefix;
540 struct kvm_s390_stop_info stop;
541 struct kvm_s390_mchk_info mchk;
545 struct kvm_s390_irq_payload {
546 struct kvm_s390_io_info io;
547 struct kvm_s390_ext_info ext;
548 struct kvm_s390_pgm_info pgm;
549 struct kvm_s390_emerg_info emerg;
550 struct kvm_s390_extcall_info extcall;
551 struct kvm_s390_prefix_info prefix;
552 struct kvm_s390_stop_info stop;
553 struct kvm_s390_mchk_info mchk;
556 struct kvm_s390_local_interrupt {
558 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
559 struct kvm_s390_irq_payload irq;
560 unsigned long pending_irqs;
563 #define FIRQ_LIST_IO_ISC_0 0
564 #define FIRQ_LIST_IO_ISC_1 1
565 #define FIRQ_LIST_IO_ISC_2 2
566 #define FIRQ_LIST_IO_ISC_3 3
567 #define FIRQ_LIST_IO_ISC_4 4
568 #define FIRQ_LIST_IO_ISC_5 5
569 #define FIRQ_LIST_IO_ISC_6 6
570 #define FIRQ_LIST_IO_ISC_7 7
571 #define FIRQ_LIST_PFAULT 8
572 #define FIRQ_LIST_VIRTIO 9
573 #define FIRQ_LIST_COUNT 10
574 #define FIRQ_CNTR_IO 0
575 #define FIRQ_CNTR_SERVICE 1
576 #define FIRQ_CNTR_VIRTIO 2
577 #define FIRQ_CNTR_PFAULT 3
578 #define FIRQ_MAX_COUNT 4
580 /* mask the AIS mode for a given ISC */
581 #define AIS_MODE_MASK(isc) (0x80 >> isc)
583 #define KVM_S390_AIS_MODE_ALL 0
584 #define KVM_S390_AIS_MODE_SINGLE 1
586 struct kvm_s390_float_interrupt {
587 unsigned long pending_irqs;
589 struct list_head lists[FIRQ_LIST_COUNT];
590 int counters[FIRQ_MAX_COUNT];
591 struct kvm_s390_mchk_info mchk;
592 struct kvm_s390_ext_info srv_signal;
594 struct mutex ais_lock;
599 struct kvm_hw_wp_info_arch {
601 unsigned long phys_addr;
606 struct kvm_hw_bp_info_arch {
612 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
613 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
614 * arch/s390/include/uapi/asm/kvm.h
616 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000
618 #define guestdbg_enabled(vcpu) \
619 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
620 #define guestdbg_sstep_enabled(vcpu) \
621 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
622 #define guestdbg_hw_bp_enabled(vcpu) \
623 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
624 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
625 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
627 struct kvm_guestdbg_info_arch {
632 struct kvm_hw_bp_info_arch *hw_bp_info;
633 struct kvm_hw_wp_info_arch *hw_wp_info;
636 unsigned long last_bp;
639 struct kvm_vcpu_arch {
640 struct kvm_s390_sie_block *sie_block;
641 /* if vsie is active, currently executed shadow sie control block */
642 struct kvm_s390_sie_block *vsie_block;
643 unsigned int host_acrs[NUM_ACRS];
644 struct gs_cb *host_gscb;
645 struct fpu host_fpregs;
646 struct kvm_s390_local_interrupt local_int;
647 struct hrtimer ckc_timer;
648 struct kvm_s390_pgm_info pgm;
650 /* backup location for the currently enabled gmap when scheduled out */
651 struct gmap *enabled_gmap;
652 struct kvm_guestdbg_info_arch guestdbg;
653 unsigned long pfault_token;
654 unsigned long pfault_select;
655 unsigned long pfault_compare;
658 * The seqcount protects updates to cputm_start and sie_block.cputm,
659 * this way we can have non-blocking reads with consistent values.
660 * Only the owning VCPU thread (vcpu->cpu) is allowed to change these
661 * values and to start/stop/enable/disable cpu timer accounting.
663 seqcount_t cputm_seqcount;
671 u64 inject_float_mchk;
672 u64 inject_pfault_done;
673 u64 inject_service_signal;
675 u64 remote_tlb_flush;
678 struct kvm_arch_memory_slot {
681 struct s390_map_info {
682 struct list_head list;
688 struct s390_io_adapter {
695 struct rw_semaphore maps_lock;
696 struct list_head maps;
700 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
701 #define MAX_S390_ADAPTER_MAPS 256
703 /* maximum size of facilities and facility mask is 2k bytes */
704 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
705 #define S390_ARCH_FAC_LIST_SIZE_U64 \
706 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
707 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
708 #define S390_ARCH_FAC_MASK_SIZE_U64 \
709 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
711 struct kvm_s390_cpu_model {
712 /* facility mask supported by kvm & hosting machine */
713 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
714 struct kvm_s390_vm_cpu_subfunc subfuncs;
715 /* facility list requested by guest (in dma page) */
721 struct kvm_s390_crypto {
722 struct kvm_s390_crypto_cb *crycb;
729 #define APCB0_MASK_SIZE 1
730 struct kvm_s390_apcb0 {
731 __u64 apm[APCB0_MASK_SIZE]; /* 0x0000 */
732 __u64 aqm[APCB0_MASK_SIZE]; /* 0x0008 */
733 __u64 adm[APCB0_MASK_SIZE]; /* 0x0010 */
734 __u64 reserved18; /* 0x0018 */
737 #define APCB1_MASK_SIZE 4
738 struct kvm_s390_apcb1 {
739 __u64 apm[APCB1_MASK_SIZE]; /* 0x0000 */
740 __u64 aqm[APCB1_MASK_SIZE]; /* 0x0020 */
741 __u64 adm[APCB1_MASK_SIZE]; /* 0x0040 */
742 __u64 reserved60[4]; /* 0x0060 */
745 struct kvm_s390_crypto_cb {
746 struct kvm_s390_apcb0 apcb0; /* 0x0000 */
747 __u8 reserved20[0x0048 - 0x0020]; /* 0x0020 */
748 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */
749 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */
750 struct kvm_s390_apcb1 apcb1; /* 0x0080 */
753 struct kvm_s390_gisa {
755 struct { /* common to all formats */
761 struct { /* format 0 */
772 struct { /* format 1 */
791 struct kvm_s390_gib {
792 u32 alert_list_origin;
801 * sie_page2 has to be allocated as DMA because fac_list, crycb and
802 * gisa need 31bit addresses in the sie control block.
805 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64]; /* 0x0000 */
806 struct kvm_s390_crypto_cb crycb; /* 0x0800 */
807 struct kvm_s390_gisa gisa; /* 0x0900 */
808 struct kvm *kvm; /* 0x0920 */
809 u8 reserved928[0x1000 - 0x928]; /* 0x0928 */
812 struct kvm_s390_vsie {
814 struct radix_tree_root addr_to_page;
817 struct page *pages[KVM_MAX_VCPUS];
820 struct kvm_s390_gisa_iam {
823 u32 ref_count[MAX_ISC + 1];
826 struct kvm_s390_gisa_interrupt {
827 struct kvm_s390_gisa *origin;
828 struct kvm_s390_gisa_iam alert;
829 struct hrtimer timer;
831 DECLARE_BITMAP(kicked_mask, KVM_MAX_VCPUS);
839 struct kvm_s390_float_interrupt float_int;
840 struct kvm_device *flic;
842 unsigned long mem_limit;
848 int user_cpu_state_ctrl;
852 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
853 wait_queue_head_t ipte_wq;
855 struct mutex ipte_mutex;
856 spinlock_t start_stop_lock;
857 struct sie_page2 *sie_page2;
858 struct kvm_s390_cpu_model model;
859 struct kvm_s390_crypto crypto;
860 struct kvm_s390_vsie vsie;
864 atomic64_t cmma_dirty_pages;
865 /* subset of available cpu features enabled by user space */
866 DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);
867 DECLARE_BITMAP(idle_mask, KVM_MAX_VCPUS);
868 struct kvm_s390_gisa_interrupt gisa_int;
871 #define KVM_HVA_ERR_BAD (-1UL)
872 #define KVM_HVA_ERR_RO_BAD (-2UL)
874 static inline bool kvm_is_error_hva(unsigned long addr)
876 return IS_ERR_VALUE(addr);
879 #define ASYNC_PF_PER_VCPU 64
880 struct kvm_arch_async_pf {
881 unsigned long pfault_token;
884 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
886 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
887 struct kvm_async_pf *work);
889 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
890 struct kvm_async_pf *work);
892 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
893 struct kvm_async_pf *work);
895 void kvm_arch_crypto_clear_masks(struct kvm *kvm);
896 void kvm_arch_crypto_set_masks(struct kvm *kvm, unsigned long *apm,
897 unsigned long *aqm, unsigned long *adm);
899 extern int sie64a(struct kvm_s390_sie_block *, u64 *);
900 extern char sie_exit;
902 extern int kvm_s390_gisc_register(struct kvm *kvm, u32 gisc);
903 extern int kvm_s390_gisc_unregister(struct kvm *kvm, u32 gisc);
905 static inline void kvm_arch_hardware_disable(void) {}
906 static inline void kvm_arch_check_processor_compat(void *rtn) {}
907 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
908 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
909 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
910 static inline void kvm_arch_free_memslot(struct kvm *kvm,
911 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
912 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
913 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
914 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
915 struct kvm_memory_slot *slot) {}
916 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
917 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
919 void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu);