1
2
3
4
5
6
7
8
9
10
11
12
13
14#ifndef ASM_KVM_HOST_H
15#define ASM_KVM_HOST_H
16
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>
25#include <asm/cpu.h>
26#include <asm/fpu/api.h>
27#include <asm/isc.h>
28
29#define KVM_S390_BSCA_CPU_SLOTS 64
30#define KVM_S390_ESCA_CPU_SLOTS 248
31#define KVM_MAX_VCPUS KVM_S390_ESCA_CPU_SLOTS
32#define KVM_USER_MEM_SLOTS 32
33
34
35
36
37
38
39#define KVM_NR_IRQCHIPS 1
40#define KVM_IRQCHIP_NUM_PINS 4096
41#define KVM_HALT_POLL_NS_DEFAULT 0
42
43
44#define KVM_REQ_ENABLE_IBS 8
45#define KVM_REQ_DISABLE_IBS 9
46
47#define SIGP_CTRL_C 0x80
48#define SIGP_CTRL_SCN_MASK 0x3f
49
50union bsca_sigp_ctrl {
51 __u8 value;
52 struct {
53 __u8 c : 1;
54 __u8 r : 1;
55 __u8 scn : 6;
56 };
57} __packed;
58
59union esca_sigp_ctrl {
60 __u16 value;
61 struct {
62 __u8 c : 1;
63 __u8 reserved: 7;
64 __u8 scn;
65 };
66} __packed;
67
68struct esca_entry {
69 union esca_sigp_ctrl sigp_ctrl;
70 __u16 reserved1[3];
71 __u64 sda;
72 __u64 reserved2[6];
73} __packed;
74
75struct bsca_entry {
76 __u8 reserved0;
77 union bsca_sigp_ctrl sigp_ctrl;
78 __u16 reserved[3];
79 __u64 sda;
80 __u64 reserved2[2];
81} __attribute__((packed));
82
83union ipte_control {
84 unsigned long val;
85 struct {
86 unsigned long k : 1;
87 unsigned long kh : 31;
88 unsigned long kg : 32;
89 };
90};
91
92struct bsca_block {
93 union ipte_control ipte_control;
94 __u64 reserved[5];
95 __u64 mcn;
96 __u64 reserved2;
97 struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS];
98} __attribute__((packed));
99
100struct esca_block {
101 union ipte_control ipte_control;
102 __u64 reserved1[7];
103 __u64 mcn[4];
104 __u64 reserved2[20];
105 struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
106} __packed;
107
108#define CPUSTAT_STOPPED 0x80000000
109#define CPUSTAT_WAIT 0x10000000
110#define CPUSTAT_ECALL_PEND 0x08000000
111#define CPUSTAT_STOP_INT 0x04000000
112#define CPUSTAT_IO_INT 0x02000000
113#define CPUSTAT_EXT_INT 0x01000000
114#define CPUSTAT_RUNNING 0x00800000
115#define CPUSTAT_RETAINED 0x00400000
116#define CPUSTAT_TIMING_SUB 0x00020000
117#define CPUSTAT_SIE_SUB 0x00010000
118#define CPUSTAT_RRF 0x00008000
119#define CPUSTAT_SLSV 0x00004000
120#define CPUSTAT_SLSR 0x00002000
121#define CPUSTAT_ZARCH 0x00000800
122#define CPUSTAT_MCDS 0x00000100
123#define CPUSTAT_SM 0x00000080
124#define CPUSTAT_IBS 0x00000040
125#define CPUSTAT_GED2 0x00000010
126#define CPUSTAT_G 0x00000008
127#define CPUSTAT_GED 0x00000004
128#define CPUSTAT_J 0x00000002
129#define CPUSTAT_P 0x00000001
130
131struct kvm_s390_sie_block {
132 atomic_t cpuflags;
133 __u32 : 1;
134 __u32 prefix : 18;
135 __u32 : 1;
136 __u32 ibc : 12;
137 __u8 reserved08[4];
138#define PROG_IN_SIE (1<<0)
139 __u32 prog0c;
140 __u8 reserved10[16];
141#define PROG_BLOCK_SIE (1<<0)
142#define PROG_REQUEST (1<<1)
143 atomic_t prog20;
144 __u8 reserved24[4];
145 __u64 cputm;
146 __u64 ckc;
147 __u64 epoch;
148 __u8 reserved40[4];
149#define LCTL_CR0 0x8000
150#define LCTL_CR6 0x0200
151#define LCTL_CR9 0x0040
152#define LCTL_CR10 0x0020
153#define LCTL_CR11 0x0010
154#define LCTL_CR14 0x0002
155 __u16 lctl;
156 __s16 icpua;
157#define ICTL_PINT 0x20000000
158#define ICTL_LPSW 0x00400000
159#define ICTL_STCTL 0x00040000
160#define ICTL_ISKE 0x00004000
161#define ICTL_SSKE 0x00002000
162#define ICTL_RRBE 0x00001000
163#define ICTL_TPROT 0x00000200
164 __u32 ictl;
165 __u32 eca;
166#define ICPT_INST 0x04
167#define ICPT_PROGI 0x08
168#define ICPT_INSTPROGI 0x0C
169#define ICPT_OPEREXC 0x2C
170#define ICPT_PARTEXEC 0x38
171#define ICPT_IOINST 0x40
172 __u8 icptcode;
173 __u8 icptstatus;
174 __u16 ihcpu;
175 __u8 reserved54[2];
176 __u16 ipa;
177 __u32 ipb;
178 __u32 scaoh;
179 __u8 reserved60;
180 __u8 ecb;
181 __u8 ecb2;
182#define ECB3_AES 0x04
183#define ECB3_DEA 0x08
184 __u8 ecb3;
185 __u32 scaol;
186 __u8 reserved68[4];
187 __u32 todpr;
188 __u8 reserved70[32];
189 psw_t gpsw;
190 __u64 gg14;
191 __u64 gg15;
192 __u8 reservedb0[20];
193 __u16 extcpuaddr;
194 __u16 eic;
195 __u32 reservedc8;
196 __u16 pgmilc;
197 __u16 iprcc;
198 __u32 dxc;
199 __u16 mcn;
200 __u8 perc;
201 __u8 peratmid;
202 __u64 peraddr;
203 __u8 eai;
204 __u8 peraid;
205 __u8 oai;
206 __u8 armid;
207 __u8 reservede4[4];
208 __u64 tecmc;
209 __u8 reservedf0[12];
210#define CRYCB_FORMAT1 0x00000001
211#define CRYCB_FORMAT2 0x00000003
212 __u32 crycbd;
213 __u64 gcr[16];
214 __u64 gbea;
215 __u8 reserved188[24];
216 __u32 fac;
217 __u8 reserved1a4[20];
218 __u64 cbrlo;
219 __u8 reserved1c0[8];
220 __u32 ecd;
221 __u8 reserved1cc[18];
222 __u64 pp;
223 __u8 reserved1e6[2];
224 __u64 itdba;
225 __u64 riccbd;
226 __u8 reserved1f8[8];
227} __attribute__((packed));
228
229struct kvm_s390_itdb {
230 __u8 data[256];
231} __packed;
232
233struct sie_page {
234 struct kvm_s390_sie_block sie_block;
235 __u8 reserved200[1024];
236 struct kvm_s390_itdb itdb;
237 __u8 reserved700[2304];
238} __packed;
239
240struct kvm_vcpu_stat {
241 u32 exit_userspace;
242 u32 exit_null;
243 u32 exit_external_request;
244 u32 exit_external_interrupt;
245 u32 exit_stop_request;
246 u32 exit_validity;
247 u32 exit_instruction;
248 u32 halt_successful_poll;
249 u32 halt_attempted_poll;
250 u32 halt_wakeup;
251 u32 instruction_lctl;
252 u32 instruction_lctlg;
253 u32 instruction_stctl;
254 u32 instruction_stctg;
255 u32 exit_program_interruption;
256 u32 exit_instr_and_program;
257 u32 deliver_external_call;
258 u32 deliver_emergency_signal;
259 u32 deliver_service_signal;
260 u32 deliver_virtio_interrupt;
261 u32 deliver_stop_signal;
262 u32 deliver_prefix_signal;
263 u32 deliver_restart_signal;
264 u32 deliver_program_int;
265 u32 deliver_io_int;
266 u32 exit_wait_state;
267 u32 instruction_pfmf;
268 u32 instruction_stidp;
269 u32 instruction_spx;
270 u32 instruction_stpx;
271 u32 instruction_stap;
272 u32 instruction_storage_key;
273 u32 instruction_ipte_interlock;
274 u32 instruction_stsch;
275 u32 instruction_chsc;
276 u32 instruction_stsi;
277 u32 instruction_stfl;
278 u32 instruction_tprot;
279 u32 instruction_essa;
280 u32 instruction_sigp_sense;
281 u32 instruction_sigp_sense_running;
282 u32 instruction_sigp_external_call;
283 u32 instruction_sigp_emergency;
284 u32 instruction_sigp_cond_emergency;
285 u32 instruction_sigp_start;
286 u32 instruction_sigp_stop;
287 u32 instruction_sigp_stop_store_status;
288 u32 instruction_sigp_store_status;
289 u32 instruction_sigp_store_adtl_status;
290 u32 instruction_sigp_arch;
291 u32 instruction_sigp_prefix;
292 u32 instruction_sigp_restart;
293 u32 instruction_sigp_init_cpu_reset;
294 u32 instruction_sigp_cpu_reset;
295 u32 instruction_sigp_unknown;
296 u32 diagnose_10;
297 u32 diagnose_44;
298 u32 diagnose_9c;
299 u32 diagnose_258;
300 u32 diagnose_308;
301 u32 diagnose_500;
302};
303
304#define PGM_OPERATION 0x01
305#define PGM_PRIVILEGED_OP 0x02
306#define PGM_EXECUTE 0x03
307#define PGM_PROTECTION 0x04
308#define PGM_ADDRESSING 0x05
309#define PGM_SPECIFICATION 0x06
310#define PGM_DATA 0x07
311#define PGM_FIXED_POINT_OVERFLOW 0x08
312#define PGM_FIXED_POINT_DIVIDE 0x09
313#define PGM_DECIMAL_OVERFLOW 0x0a
314#define PGM_DECIMAL_DIVIDE 0x0b
315#define PGM_HFP_EXPONENT_OVERFLOW 0x0c
316#define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
317#define PGM_HFP_SIGNIFICANCE 0x0e
318#define PGM_HFP_DIVIDE 0x0f
319#define PGM_SEGMENT_TRANSLATION 0x10
320#define PGM_PAGE_TRANSLATION 0x11
321#define PGM_TRANSLATION_SPEC 0x12
322#define PGM_SPECIAL_OPERATION 0x13
323#define PGM_OPERAND 0x15
324#define PGM_TRACE_TABEL 0x16
325#define PGM_VECTOR_PROCESSING 0x1b
326#define PGM_SPACE_SWITCH 0x1c
327#define PGM_HFP_SQUARE_ROOT 0x1d
328#define PGM_PC_TRANSLATION_SPEC 0x1f
329#define PGM_AFX_TRANSLATION 0x20
330#define PGM_ASX_TRANSLATION 0x21
331#define PGM_LX_TRANSLATION 0x22
332#define PGM_EX_TRANSLATION 0x23
333#define PGM_PRIMARY_AUTHORITY 0x24
334#define PGM_SECONDARY_AUTHORITY 0x25
335#define PGM_LFX_TRANSLATION 0x26
336#define PGM_LSX_TRANSLATION 0x27
337#define PGM_ALET_SPECIFICATION 0x28
338#define PGM_ALEN_TRANSLATION 0x29
339#define PGM_ALE_SEQUENCE 0x2a
340#define PGM_ASTE_VALIDITY 0x2b
341#define PGM_ASTE_SEQUENCE 0x2c
342#define PGM_EXTENDED_AUTHORITY 0x2d
343#define PGM_LSTE_SEQUENCE 0x2e
344#define PGM_ASTE_INSTANCE 0x2f
345#define PGM_STACK_FULL 0x30
346#define PGM_STACK_EMPTY 0x31
347#define PGM_STACK_SPECIFICATION 0x32
348#define PGM_STACK_TYPE 0x33
349#define PGM_STACK_OPERATION 0x34
350#define PGM_ASCE_TYPE 0x38
351#define PGM_REGION_FIRST_TRANS 0x39
352#define PGM_REGION_SECOND_TRANS 0x3a
353#define PGM_REGION_THIRD_TRANS 0x3b
354#define PGM_MONITOR 0x40
355#define PGM_PER 0x80
356#define PGM_CRYPTO_OPERATION 0x119
357
358
359enum irq_types {
360 IRQ_PEND_MCHK_EX = 0,
361 IRQ_PEND_SVC,
362 IRQ_PEND_PROG,
363 IRQ_PEND_MCHK_REP,
364 IRQ_PEND_EXT_IRQ_KEY,
365 IRQ_PEND_EXT_MALFUNC,
366 IRQ_PEND_EXT_EMERGENCY,
367 IRQ_PEND_EXT_EXTERNAL,
368 IRQ_PEND_EXT_CLOCK_COMP,
369 IRQ_PEND_EXT_CPU_TIMER,
370 IRQ_PEND_EXT_TIMING,
371 IRQ_PEND_EXT_SERVICE,
372 IRQ_PEND_EXT_HOST,
373 IRQ_PEND_PFAULT_INIT,
374 IRQ_PEND_PFAULT_DONE,
375 IRQ_PEND_VIRTIO,
376 IRQ_PEND_IO_ISC_0,
377 IRQ_PEND_IO_ISC_1,
378 IRQ_PEND_IO_ISC_2,
379 IRQ_PEND_IO_ISC_3,
380 IRQ_PEND_IO_ISC_4,
381 IRQ_PEND_IO_ISC_5,
382 IRQ_PEND_IO_ISC_6,
383 IRQ_PEND_IO_ISC_7,
384 IRQ_PEND_SIGP_STOP,
385 IRQ_PEND_RESTART,
386 IRQ_PEND_SET_PREFIX,
387 IRQ_PEND_COUNT
388};
389
390
391
392
393#define KVM_S390_MAX_VIRTIO_IRQS 87381
394
395
396
397
398
399#define MCHK_EXTD_BIT 58
400#define MCHK_DEGR_BIT 56
401#define MCHK_WARN_BIT 55
402#define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
403 (1UL << MCHK_EXTD_BIT) | \
404 (1UL << MCHK_WARN_BIT))
405
406
407#define MCHK_SD_BIT 63
408#define MCHK_PD_BIT 62
409#define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
410
411#define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
412 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
413 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \
414 (1UL << IRQ_PEND_EXT_MALFUNC) | \
415 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
416 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
417 (1UL << IRQ_PEND_EXT_TIMING) | \
418 (1UL << IRQ_PEND_EXT_HOST) | \
419 (1UL << IRQ_PEND_EXT_SERVICE) | \
420 (1UL << IRQ_PEND_VIRTIO) | \
421 (1UL << IRQ_PEND_PFAULT_INIT) | \
422 (1UL << IRQ_PEND_PFAULT_DONE))
423
424#define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
425 (1UL << IRQ_PEND_IO_ISC_1) | \
426 (1UL << IRQ_PEND_IO_ISC_2) | \
427 (1UL << IRQ_PEND_IO_ISC_3) | \
428 (1UL << IRQ_PEND_IO_ISC_4) | \
429 (1UL << IRQ_PEND_IO_ISC_5) | \
430 (1UL << IRQ_PEND_IO_ISC_6) | \
431 (1UL << IRQ_PEND_IO_ISC_7))
432
433#define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
434 (1UL << IRQ_PEND_MCHK_EX))
435
436struct kvm_s390_interrupt_info {
437 struct list_head list;
438 u64 type;
439 union {
440 struct kvm_s390_io_info io;
441 struct kvm_s390_ext_info ext;
442 struct kvm_s390_pgm_info pgm;
443 struct kvm_s390_emerg_info emerg;
444 struct kvm_s390_extcall_info extcall;
445 struct kvm_s390_prefix_info prefix;
446 struct kvm_s390_stop_info stop;
447 struct kvm_s390_mchk_info mchk;
448 };
449};
450
451struct kvm_s390_irq_payload {
452 struct kvm_s390_io_info io;
453 struct kvm_s390_ext_info ext;
454 struct kvm_s390_pgm_info pgm;
455 struct kvm_s390_emerg_info emerg;
456 struct kvm_s390_extcall_info extcall;
457 struct kvm_s390_prefix_info prefix;
458 struct kvm_s390_stop_info stop;
459 struct kvm_s390_mchk_info mchk;
460};
461
462struct kvm_s390_local_interrupt {
463 spinlock_t lock;
464 struct kvm_s390_float_interrupt *float_int;
465 struct swait_queue_head *wq;
466 atomic_t *cpuflags;
467 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
468 struct kvm_s390_irq_payload irq;
469 unsigned long pending_irqs;
470};
471
472#define FIRQ_LIST_IO_ISC_0 0
473#define FIRQ_LIST_IO_ISC_1 1
474#define FIRQ_LIST_IO_ISC_2 2
475#define FIRQ_LIST_IO_ISC_3 3
476#define FIRQ_LIST_IO_ISC_4 4
477#define FIRQ_LIST_IO_ISC_5 5
478#define FIRQ_LIST_IO_ISC_6 6
479#define FIRQ_LIST_IO_ISC_7 7
480#define FIRQ_LIST_PFAULT 8
481#define FIRQ_LIST_VIRTIO 9
482#define FIRQ_LIST_COUNT 10
483#define FIRQ_CNTR_IO 0
484#define FIRQ_CNTR_SERVICE 1
485#define FIRQ_CNTR_VIRTIO 2
486#define FIRQ_CNTR_PFAULT 3
487#define FIRQ_MAX_COUNT 4
488
489struct kvm_s390_float_interrupt {
490 unsigned long pending_irqs;
491 spinlock_t lock;
492 struct list_head lists[FIRQ_LIST_COUNT];
493 int counters[FIRQ_MAX_COUNT];
494 struct kvm_s390_mchk_info mchk;
495 struct kvm_s390_ext_info srv_signal;
496 int next_rr_cpu;
497 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
498};
499
500struct kvm_hw_wp_info_arch {
501 unsigned long addr;
502 unsigned long phys_addr;
503 int len;
504 char *old_data;
505};
506
507struct kvm_hw_bp_info_arch {
508 unsigned long addr;
509 int len;
510};
511
512
513
514
515
516
517#define KVM_GUESTDBG_EXIT_PENDING 0x10000000
518
519#define guestdbg_enabled(vcpu) \
520 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
521#define guestdbg_sstep_enabled(vcpu) \
522 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
523#define guestdbg_hw_bp_enabled(vcpu) \
524 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
525#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
526 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
527
528struct kvm_guestdbg_info_arch {
529 unsigned long cr0;
530 unsigned long cr9;
531 unsigned long cr10;
532 unsigned long cr11;
533 struct kvm_hw_bp_info_arch *hw_bp_info;
534 struct kvm_hw_wp_info_arch *hw_wp_info;
535 int nr_hw_bp;
536 int nr_hw_wp;
537 unsigned long last_bp;
538};
539
540struct kvm_vcpu_arch {
541 struct kvm_s390_sie_block *sie_block;
542 unsigned int host_acrs[NUM_ACRS];
543 struct fpu host_fpregs;
544 struct kvm_s390_local_interrupt local_int;
545 struct hrtimer ckc_timer;
546 struct kvm_s390_pgm_info pgm;
547 union {
548 struct cpuid cpu_id;
549 u64 stidp_data;
550 };
551 struct gmap *gmap;
552 struct kvm_guestdbg_info_arch guestdbg;
553 unsigned long pfault_token;
554 unsigned long pfault_select;
555 unsigned long pfault_compare;
556 bool cputm_enabled;
557
558
559
560
561
562
563 seqcount_t cputm_seqcount;
564 __u64 cputm_start;
565};
566
567struct kvm_vm_stat {
568 u32 remote_tlb_flush;
569};
570
571struct kvm_arch_memory_slot {
572};
573
574struct s390_map_info {
575 struct list_head list;
576 __u64 guest_addr;
577 __u64 addr;
578 struct page *page;
579};
580
581struct s390_io_adapter {
582 unsigned int id;
583 int isc;
584 bool maskable;
585 bool masked;
586 bool swap;
587 struct rw_semaphore maps_lock;
588 struct list_head maps;
589 atomic_t nr_maps;
590};
591
592#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
593#define MAX_S390_ADAPTER_MAPS 256
594
595
596#define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
597#define S390_ARCH_FAC_LIST_SIZE_U64 \
598 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
599#define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
600#define S390_ARCH_FAC_MASK_SIZE_U64 \
601 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
602
603struct kvm_s390_cpu_model {
604
605 __u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
606
607 __u64 *fac_list;
608 struct cpuid cpu_id;
609 unsigned short ibc;
610};
611
612struct kvm_s390_crypto {
613 struct kvm_s390_crypto_cb *crycb;
614 __u32 crycbd;
615 __u8 aes_kw;
616 __u8 dea_kw;
617};
618
619struct kvm_s390_crypto_cb {
620 __u8 reserved00[72];
621 __u8 dea_wrapping_key_mask[24];
622 __u8 aes_wrapping_key_mask[32];
623 __u8 reserved80[128];
624};
625
626
627
628
629
630struct sie_page2 {
631 __u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64];
632 struct kvm_s390_crypto_cb crycb;
633 u8 reserved900[0x1000 - 0x900];
634} __packed;
635
636struct kvm_arch{
637 void *sca;
638 int use_esca;
639 rwlock_t sca_lock;
640 debug_info_t *dbf;
641 struct kvm_s390_float_interrupt float_int;
642 struct kvm_device *flic;
643 struct gmap *gmap;
644 unsigned long mem_limit;
645 int css_support;
646 int use_irqchip;
647 int use_cmma;
648 int user_cpu_state_ctrl;
649 int user_sigp;
650 int user_stsi;
651 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
652 wait_queue_head_t ipte_wq;
653 int ipte_lock_count;
654 struct mutex ipte_mutex;
655 spinlock_t start_stop_lock;
656 struct sie_page2 *sie_page2;
657 struct kvm_s390_cpu_model model;
658 struct kvm_s390_crypto crypto;
659 u64 epoch;
660};
661
662#define KVM_HVA_ERR_BAD (-1UL)
663#define KVM_HVA_ERR_RO_BAD (-2UL)
664
665static inline bool kvm_is_error_hva(unsigned long addr)
666{
667 return IS_ERR_VALUE(addr);
668}
669
670#define ASYNC_PF_PER_VCPU 64
671struct kvm_arch_async_pf {
672 unsigned long pfault_token;
673};
674
675bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
676
677void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
678 struct kvm_async_pf *work);
679
680void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
681 struct kvm_async_pf *work);
682
683void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
684 struct kvm_async_pf *work);
685
686extern int sie64a(struct kvm_s390_sie_block *, u64 *);
687extern char sie_exit;
688
689static inline void kvm_arch_hardware_disable(void) {}
690static inline void kvm_arch_check_processor_compat(void *rtn) {}
691static inline void kvm_arch_sync_events(struct kvm *kvm) {}
692static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
693static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
694static inline void kvm_arch_free_memslot(struct kvm *kvm,
695 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
696static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
697static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
698static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
699 struct kvm_memory_slot *slot) {}
700static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
701static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
702
703#endif
704