1 /*
2 * definition for kernel virtual machines on s390
3 *
4 * Copyright IBM Corp. 2008, 2009
5 *
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.
9 *
10 * Author(s): Carsten Otte <cotte@de.ibm.com>
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 <asm/debug.h>
24 #include <asm/cpu.h>
25 #include <asm/fpu/api.h>
26 #include <asm/isc.h>
27
28 #define KVM_MAX_VCPUS 64
29 #define KVM_USER_MEM_SLOTS 32
30
31 /*
32 * These seem to be used for allocating ->chip in the routing table, which we
33 * don't use. 1 is as small as we can get to reduce the needed memory. If we
34 * need to look at ->chip later on, we'll need to revisit this.
35 */
36 #define KVM_NR_IRQCHIPS 1
37 #define KVM_IRQCHIP_NUM_PINS 1
38 #define KVM_HALT_POLL_NS_DEFAULT 0
39
40 #define SIGP_CTRL_C 0x80
41 #define SIGP_CTRL_SCN_MASK 0x3f
42
43 struct sca_entry {
44 __u8 reserved0;
45 __u8 sigp_ctrl;
46 __u16 reserved[3];
47 __u64 sda;
48 __u64 reserved2[2];
49 } __attribute__((packed));
50
51 union ipte_control {
52 unsigned long val;
53 struct {
54 unsigned long k : 1;
55 unsigned long kh : 31;
56 unsigned long kg : 32;
57 };
58 };
59
60 struct sca_block {
61 union ipte_control ipte_control;
62 __u64 reserved[5];
63 __u64 mcn;
64 __u64 reserved2;
65 struct sca_entry cpu[64];
66 } __attribute__((packed));
67
68 #define CPUSTAT_STOPPED 0x80000000
69 #define CPUSTAT_WAIT 0x10000000
70 #define CPUSTAT_ECALL_PEND 0x08000000
71 #define CPUSTAT_STOP_INT 0x04000000
72 #define CPUSTAT_IO_INT 0x02000000
73 #define CPUSTAT_EXT_INT 0x01000000
74 #define CPUSTAT_RUNNING 0x00800000
75 #define CPUSTAT_RETAINED 0x00400000
76 #define CPUSTAT_TIMING_SUB 0x00020000
77 #define CPUSTAT_SIE_SUB 0x00010000
78 #define CPUSTAT_RRF 0x00008000
79 #define CPUSTAT_SLSV 0x00004000
80 #define CPUSTAT_SLSR 0x00002000
81 #define CPUSTAT_ZARCH 0x00000800
82 #define CPUSTAT_MCDS 0x00000100
83 #define CPUSTAT_SM 0x00000080
84 #define CPUSTAT_IBS 0x00000040
85 #define CPUSTAT_GED2 0x00000010
86 #define CPUSTAT_G 0x00000008
87 #define CPUSTAT_GED 0x00000004
88 #define CPUSTAT_J 0x00000002
89 #define CPUSTAT_P 0x00000001
90
91 struct kvm_s390_sie_block {
92 atomic_t cpuflags; /* 0x0000 */
93 __u32 : 1; /* 0x0004 */
94 __u32 prefix : 18;
95 __u32 : 1;
96 __u32 ibc : 12;
97 __u8 reserved08[4]; /* 0x0008 */
98 #define PROG_IN_SIE (1<<0)
99 __u32 prog0c; /* 0x000c */
100 __u8 reserved10[16]; /* 0x0010 */
101 #define PROG_BLOCK_SIE (1<<0)
102 #define PROG_REQUEST (1<<1)
103 atomic_t prog20; /* 0x0020 */
104 __u8 reserved24[4]; /* 0x0024 */
105 __u64 cputm; /* 0x0028 */
106 __u64 ckc; /* 0x0030 */
107 __u64 epoch; /* 0x0038 */
108 __u8 reserved40[4]; /* 0x0040 */
109 #define LCTL_CR0 0x8000
110 #define LCTL_CR6 0x0200
111 #define LCTL_CR9 0x0040
112 #define LCTL_CR10 0x0020
113 #define LCTL_CR11 0x0010
114 #define LCTL_CR14 0x0002
115 __u16 lctl; /* 0x0044 */
116 __s16 icpua; /* 0x0046 */
117 #define ICTL_PINT 0x20000000
118 #define ICTL_LPSW 0x00400000
119 #define ICTL_STCTL 0x00040000
120 #define ICTL_ISKE 0x00004000
121 #define ICTL_SSKE 0x00002000
122 #define ICTL_RRBE 0x00001000
123 #define ICTL_TPROT 0x00000200
124 __u32 ictl; /* 0x0048 */
125 __u32 eca; /* 0x004c */
126 #define ICPT_INST 0x04
127 #define ICPT_PROGI 0x08
128 #define ICPT_INSTPROGI 0x0C
129 #define ICPT_OPEREXC 0x2C
130 #define ICPT_PARTEXEC 0x38
131 #define ICPT_IOINST 0x40
132 __u8 icptcode; /* 0x0050 */
133 __u8 icptstatus; /* 0x0051 */
134 __u16 ihcpu; /* 0x0052 */
135 __u8 reserved54[2]; /* 0x0054 */
136 __u16 ipa; /* 0x0056 */
137 __u32 ipb; /* 0x0058 */
138 __u32 scaoh; /* 0x005c */
139 #define FPF_BPBC 0x20
140 __u8 fpf; /* 0x0060 */
141 __u8 ecb; /* 0x0061 */
142 __u8 ecb2; /* 0x0062 */
143 #define ECB3_AES 0x04
144 #define ECB3_DEA 0x08
145 __u8 ecb3; /* 0x0063 */
146 __u32 scaol; /* 0x0064 */
147 __u8 reserved68[4]; /* 0x0068 */
148 __u32 todpr; /* 0x006c */
149 __u8 reserved70[32]; /* 0x0070 */
150 psw_t gpsw; /* 0x0090 */
151 __u64 gg14; /* 0x00a0 */
152 __u64 gg15; /* 0x00a8 */
153 __u8 reservedb0[20]; /* 0x00b0 */
154 __u16 extcpuaddr; /* 0x00c4 */
155 __u16 eic; /* 0x00c6 */
156 __u32 reservedc8; /* 0x00c8 */
157 __u16 pgmilc; /* 0x00cc */
158 __u16 iprcc; /* 0x00ce */
159 __u32 dxc; /* 0x00d0 */
160 __u16 mcn; /* 0x00d4 */
161 __u8 perc; /* 0x00d6 */
162 __u8 peratmid; /* 0x00d7 */
163 __u64 peraddr; /* 0x00d8 */
164 __u8 eai; /* 0x00e0 */
165 __u8 peraid; /* 0x00e1 */
166 __u8 oai; /* 0x00e2 */
167 __u8 armid; /* 0x00e3 */
168 __u8 reservede4[4]; /* 0x00e4 */
169 __u64 tecmc; /* 0x00e8 */
170 __u8 reservedf0[12]; /* 0x00f0 */
171 #define CRYCB_FORMAT1 0x00000001
172 #define CRYCB_FORMAT2 0x00000003
173 __u32 crycbd; /* 0x00fc */
174 __u64 gcr[16]; /* 0x0100 */
175 __u64 gbea; /* 0x0180 */
176 __u8 reserved188[24]; /* 0x0188 */
177 __u32 fac; /* 0x01a0 */
178 __u8 reserved1a4[20]; /* 0x01a4 */
179 __u64 cbrlo; /* 0x01b8 */
180 __u8 reserved1c0[8]; /* 0x01c0 */
181 __u32 ecd; /* 0x01c8 */
182 __u8 reserved1cc[18]; /* 0x01cc */
183 __u64 pp; /* 0x01de */
184 __u8 reserved1e6[2]; /* 0x01e6 */
185 __u64 itdba; /* 0x01e8 */
186 __u8 reserved1f0[16]; /* 0x01f0 */
187 } __attribute__((packed));
188
189 struct kvm_s390_itdb {
190 __u8 data[256];
191 } __packed;
192
193 struct kvm_s390_vregs {
194 __vector128 vrs[32];
195 __u8 reserved200[512]; /* for future vector expansion */
196 } __packed;
197
198 struct sie_page {
199 struct kvm_s390_sie_block sie_block;
200 __u8 reserved200[1024]; /* 0x0200 */
201 struct kvm_s390_itdb itdb; /* 0x0600 */
202 __u8 reserved700[1280]; /* 0x0700 */
203 struct kvm_s390_vregs vregs; /* 0x0c00 */
204 } __packed;
205
206 struct kvm_vcpu_stat {
207 u32 exit_userspace;
208 u32 exit_null;
209 u32 exit_external_request;
210 u32 exit_external_interrupt;
211 u32 exit_stop_request;
212 u32 exit_validity;
213 u32 exit_instruction;
214 u32 halt_successful_poll;
215 u32 halt_attempted_poll;
216 u32 halt_wakeup;
217 u32 instruction_lctl;
218 u32 instruction_lctlg;
219 u32 instruction_stctl;
220 u32 instruction_stctg;
221 u32 exit_program_interruption;
222 u32 exit_instr_and_program;
223 u32 deliver_external_call;
224 u32 deliver_emergency_signal;
225 u32 deliver_service_signal;
226 u32 deliver_virtio_interrupt;
227 u32 deliver_stop_signal;
228 u32 deliver_prefix_signal;
229 u32 deliver_restart_signal;
230 u32 deliver_program_int;
231 u32 deliver_io_int;
232 u32 exit_wait_state;
233 u32 instruction_pfmf;
234 u32 instruction_stidp;
235 u32 instruction_spx;
236 u32 instruction_stpx;
237 u32 instruction_stap;
238 u32 instruction_storage_key;
239 u32 instruction_ipte_interlock;
240 u32 instruction_stsch;
241 u32 instruction_chsc;
242 u32 instruction_stsi;
243 u32 instruction_stfl;
244 u32 instruction_tprot;
245 u32 instruction_essa;
246 u32 instruction_sigp_sense;
247 u32 instruction_sigp_sense_running;
248 u32 instruction_sigp_external_call;
249 u32 instruction_sigp_emergency;
250 u32 instruction_sigp_cond_emergency;
251 u32 instruction_sigp_start;
252 u32 instruction_sigp_stop;
253 u32 instruction_sigp_stop_store_status;
254 u32 instruction_sigp_store_status;
255 u32 instruction_sigp_store_adtl_status;
256 u32 instruction_sigp_arch;
257 u32 instruction_sigp_prefix;
258 u32 instruction_sigp_restart;
259 u32 instruction_sigp_init_cpu_reset;
260 u32 instruction_sigp_cpu_reset;
261 u32 instruction_sigp_unknown;
262 u32 diagnose_10;
263 u32 diagnose_44;
264 u32 diagnose_9c;
265 u32 diagnose_258;
266 u32 diagnose_308;
267 u32 diagnose_500;
268 };
269
270 #define PGM_OPERATION 0x01
271 #define PGM_PRIVILEGED_OP 0x02
272 #define PGM_EXECUTE 0x03
273 #define PGM_PROTECTION 0x04
274 #define PGM_ADDRESSING 0x05
275 #define PGM_SPECIFICATION 0x06
276 #define PGM_DATA 0x07
277 #define PGM_FIXED_POINT_OVERFLOW 0x08
278 #define PGM_FIXED_POINT_DIVIDE 0x09
279 #define PGM_DECIMAL_OVERFLOW 0x0a
280 #define PGM_DECIMAL_DIVIDE 0x0b
281 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
282 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
283 #define PGM_HFP_SIGNIFICANCE 0x0e
284 #define PGM_HFP_DIVIDE 0x0f
285 #define PGM_SEGMENT_TRANSLATION 0x10
286 #define PGM_PAGE_TRANSLATION 0x11
287 #define PGM_TRANSLATION_SPEC 0x12
288 #define PGM_SPECIAL_OPERATION 0x13
289 #define PGM_OPERAND 0x15
290 #define PGM_TRACE_TABEL 0x16
291 #define PGM_VECTOR_PROCESSING 0x1b
292 #define PGM_SPACE_SWITCH 0x1c
293 #define PGM_HFP_SQUARE_ROOT 0x1d
294 #define PGM_PC_TRANSLATION_SPEC 0x1f
295 #define PGM_AFX_TRANSLATION 0x20
296 #define PGM_ASX_TRANSLATION 0x21
297 #define PGM_LX_TRANSLATION 0x22
298 #define PGM_EX_TRANSLATION 0x23
299 #define PGM_PRIMARY_AUTHORITY 0x24
300 #define PGM_SECONDARY_AUTHORITY 0x25
301 #define PGM_LFX_TRANSLATION 0x26
302 #define PGM_LSX_TRANSLATION 0x27
303 #define PGM_ALET_SPECIFICATION 0x28
304 #define PGM_ALEN_TRANSLATION 0x29
305 #define PGM_ALE_SEQUENCE 0x2a
306 #define PGM_ASTE_VALIDITY 0x2b
307 #define PGM_ASTE_SEQUENCE 0x2c
308 #define PGM_EXTENDED_AUTHORITY 0x2d
309 #define PGM_LSTE_SEQUENCE 0x2e
310 #define PGM_ASTE_INSTANCE 0x2f
311 #define PGM_STACK_FULL 0x30
312 #define PGM_STACK_EMPTY 0x31
313 #define PGM_STACK_SPECIFICATION 0x32
314 #define PGM_STACK_TYPE 0x33
315 #define PGM_STACK_OPERATION 0x34
316 #define PGM_ASCE_TYPE 0x38
317 #define PGM_REGION_FIRST_TRANS 0x39
318 #define PGM_REGION_SECOND_TRANS 0x3a
319 #define PGM_REGION_THIRD_TRANS 0x3b
320 #define PGM_MONITOR 0x40
321 #define PGM_PER 0x80
322 #define PGM_CRYPTO_OPERATION 0x119
323
324 /* irq types in order of priority */
325 enum irq_types {
326 IRQ_PEND_MCHK_EX = 0,
327 IRQ_PEND_SVC,
328 IRQ_PEND_PROG,
329 IRQ_PEND_MCHK_REP,
330 IRQ_PEND_EXT_IRQ_KEY,
331 IRQ_PEND_EXT_MALFUNC,
332 IRQ_PEND_EXT_EMERGENCY,
333 IRQ_PEND_EXT_EXTERNAL,
334 IRQ_PEND_EXT_CLOCK_COMP,
335 IRQ_PEND_EXT_CPU_TIMER,
336 IRQ_PEND_EXT_TIMING,
337 IRQ_PEND_EXT_SERVICE,
338 IRQ_PEND_EXT_HOST,
339 IRQ_PEND_PFAULT_INIT,
340 IRQ_PEND_PFAULT_DONE,
341 IRQ_PEND_VIRTIO,
342 IRQ_PEND_IO_ISC_0,
343 IRQ_PEND_IO_ISC_1,
344 IRQ_PEND_IO_ISC_2,
345 IRQ_PEND_IO_ISC_3,
346 IRQ_PEND_IO_ISC_4,
347 IRQ_PEND_IO_ISC_5,
348 IRQ_PEND_IO_ISC_6,
349 IRQ_PEND_IO_ISC_7,
350 IRQ_PEND_SIGP_STOP,
351 IRQ_PEND_RESTART,
352 IRQ_PEND_SET_PREFIX,
353 IRQ_PEND_COUNT
354 };
355
356 /* We have 2M for virtio device descriptor pages. Smallest amount of
357 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
358 */
359 #define KVM_S390_MAX_VIRTIO_IRQS 87381
360
361 /*
362 * Repressible (non-floating) machine check interrupts
363 * subclass bits in MCIC
364 */
365 #define MCHK_EXTD_BIT 58
366 #define MCHK_DEGR_BIT 56
367 #define MCHK_WARN_BIT 55
368 #define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
369 (1UL << MCHK_EXTD_BIT) | \
370 (1UL << MCHK_WARN_BIT))
371
372 /* Exigent machine check interrupts subclass bits in MCIC */
373 #define MCHK_SD_BIT 63
374 #define MCHK_PD_BIT 62
375 #define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
376
377 #define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
378 (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
379 (1UL << IRQ_PEND_EXT_CPU_TIMER) | \
380 (1UL << IRQ_PEND_EXT_MALFUNC) | \
381 (1UL << IRQ_PEND_EXT_EMERGENCY) | \
382 (1UL << IRQ_PEND_EXT_EXTERNAL) | \
383 (1UL << IRQ_PEND_EXT_TIMING) | \
384 (1UL << IRQ_PEND_EXT_HOST) | \
385 (1UL << IRQ_PEND_EXT_SERVICE) | \
386 (1UL << IRQ_PEND_VIRTIO) | \
387 (1UL << IRQ_PEND_PFAULT_INIT) | \
388 (1UL << IRQ_PEND_PFAULT_DONE))
389
390 #define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
391 (1UL << IRQ_PEND_IO_ISC_1) | \
392 (1UL << IRQ_PEND_IO_ISC_2) | \
393 (1UL << IRQ_PEND_IO_ISC_3) | \
394 (1UL << IRQ_PEND_IO_ISC_4) | \
395 (1UL << IRQ_PEND_IO_ISC_5) | \
396 (1UL << IRQ_PEND_IO_ISC_6) | \
397 (1UL << IRQ_PEND_IO_ISC_7))
398
399 #define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
400 (1UL << IRQ_PEND_MCHK_EX))
401
402 struct kvm_s390_interrupt_info {
403 struct list_head list;
404 u64 type;
405 union {
406 struct kvm_s390_io_info io;
407 struct kvm_s390_ext_info ext;
408 struct kvm_s390_pgm_info pgm;
409 struct kvm_s390_emerg_info emerg;
410 struct kvm_s390_extcall_info extcall;
411 struct kvm_s390_prefix_info prefix;
412 struct kvm_s390_stop_info stop;
413 struct kvm_s390_mchk_info mchk;
414 };
415 };
416
417 struct kvm_s390_irq_payload {
418 struct kvm_s390_io_info io;
419 struct kvm_s390_ext_info ext;
420 struct kvm_s390_pgm_info pgm;
421 struct kvm_s390_emerg_info emerg;
422 struct kvm_s390_extcall_info extcall;
423 struct kvm_s390_prefix_info prefix;
424 struct kvm_s390_stop_info stop;
425 struct kvm_s390_mchk_info mchk;
426 };
427
428 struct kvm_s390_local_interrupt {
429 spinlock_t lock;
430 struct kvm_s390_float_interrupt *float_int;
431 wait_queue_head_t *wq;
432 atomic_t *cpuflags;
433 DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
434 struct kvm_s390_irq_payload irq;
435 unsigned long pending_irqs;
436 };
437
438 #define FIRQ_LIST_IO_ISC_0 0
439 #define FIRQ_LIST_IO_ISC_1 1
440 #define FIRQ_LIST_IO_ISC_2 2
441 #define FIRQ_LIST_IO_ISC_3 3
442 #define FIRQ_LIST_IO_ISC_4 4
443 #define FIRQ_LIST_IO_ISC_5 5
444 #define FIRQ_LIST_IO_ISC_6 6
445 #define FIRQ_LIST_IO_ISC_7 7
446 #define FIRQ_LIST_PFAULT 8
447 #define FIRQ_LIST_VIRTIO 9
448 #define FIRQ_LIST_COUNT 10
449 #define FIRQ_CNTR_IO 0
450 #define FIRQ_CNTR_SERVICE 1
451 #define FIRQ_CNTR_VIRTIO 2
452 #define FIRQ_CNTR_PFAULT 3
453 #define FIRQ_MAX_COUNT 4
454
455 struct kvm_s390_float_interrupt {
456 unsigned long pending_irqs;
457 spinlock_t lock;
458 struct list_head lists[FIRQ_LIST_COUNT];
459 int counters[FIRQ_MAX_COUNT];
460 struct kvm_s390_mchk_info mchk;
461 struct kvm_s390_ext_info srv_signal;
462 int next_rr_cpu;
463 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
464 };
465
466 struct kvm_hw_wp_info_arch {
467 unsigned long addr;
468 unsigned long phys_addr;
469 int len;
470 char *old_data;
471 };
472
473 struct kvm_hw_bp_info_arch {
474 unsigned long addr;
475 int len;
476 };
477
478 /*
479 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
480 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
481 * arch/s390/include/uapi/asm/kvm.h
482 */
483 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000
484
485 #define guestdbg_enabled(vcpu) \
486 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
487 #define guestdbg_sstep_enabled(vcpu) \
488 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
489 #define guestdbg_hw_bp_enabled(vcpu) \
490 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
491 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
492 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
493
494 struct kvm_guestdbg_info_arch {
495 unsigned long cr0;
496 unsigned long cr9;
497 unsigned long cr10;
498 unsigned long cr11;
499 struct kvm_hw_bp_info_arch *hw_bp_info;
500 struct kvm_hw_wp_info_arch *hw_wp_info;
501 int nr_hw_bp;
502 int nr_hw_wp;
503 unsigned long last_bp;
504 };
505
506 struct kvm_vcpu_arch {
507 struct kvm_s390_sie_block *sie_block;
508 unsigned int host_acrs[NUM_ACRS];
509 struct fpu host_fpregs;
510 struct kvm_s390_local_interrupt local_int;
511 struct hrtimer ckc_timer;
512 struct kvm_s390_pgm_info pgm;
513 union {
514 struct cpuid cpu_id;
515 u64 stidp_data;
516 };
517 struct gmap *gmap;
518 struct kvm_guestdbg_info_arch guestdbg;
519 unsigned long pfault_token;
520 unsigned long pfault_select;
521 unsigned long pfault_compare;
522 };
523
524 struct kvm_vm_stat {
525 u32 remote_tlb_flush;
526 };
527
528 struct kvm_arch_memory_slot {
529 };
530
531 struct s390_map_info {
532 struct list_head list;
533 __u64 guest_addr;
534 __u64 addr;
535 struct page *page;
536 };
537
538 struct s390_io_adapter {
539 unsigned int id;
540 int isc;
541 bool maskable;
542 bool masked;
543 bool swap;
544 struct rw_semaphore maps_lock;
545 struct list_head maps;
546 atomic_t nr_maps;
547 };
548
549 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
550 #define MAX_S390_ADAPTER_MAPS 256
551
552 /* maximum size of facilities and facility mask is 2k bytes */
553 #define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
554 #define S390_ARCH_FAC_LIST_SIZE_U64 \
555 (S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
556 #define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
557 #define S390_ARCH_FAC_MASK_SIZE_U64 \
558 (S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
559
560 struct kvm_s390_fac {
561 /* facility list requested by guest */
562 __u64 list[S390_ARCH_FAC_LIST_SIZE_U64];
563 /* facility mask supported by kvm & hosting machine */
564 __u64 mask[S390_ARCH_FAC_LIST_SIZE_U64];
565 };
566
567 struct kvm_s390_cpu_model {
568 struct kvm_s390_fac *fac;
569 struct cpuid cpu_id;
570 unsigned short ibc;
571 };
572
573 struct kvm_s390_crypto {
574 struct kvm_s390_crypto_cb *crycb;
575 __u32 crycbd;
576 __u8 aes_kw;
577 __u8 dea_kw;
578 };
579
580 struct kvm_s390_crypto_cb {
581 __u8 reserved00[72]; /* 0x0000 */
582 __u8 dea_wrapping_key_mask[24]; /* 0x0048 */
583 __u8 aes_wrapping_key_mask[32]; /* 0x0060 */
584 __u8 reserved80[128]; /* 0x0080 */
585 };
586
587 struct kvm_arch{
588 struct sca_block *sca;
589 debug_info_t *dbf;
590 struct kvm_s390_float_interrupt float_int;
591 struct kvm_device *flic;
592 struct gmap *gmap;
593 int css_support;
594 int use_irqchip;
595 int use_cmma;
596 int user_cpu_state_ctrl;
597 int user_sigp;
598 int user_stsi;
599 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
600 wait_queue_head_t ipte_wq;
601 int ipte_lock_count;
602 struct mutex ipte_mutex;
603 spinlock_t start_stop_lock;
604 struct kvm_s390_cpu_model model;
605 struct kvm_s390_crypto crypto;
606 u64 epoch;
607 };
608
609 #define KVM_HVA_ERR_BAD (-1UL)
610 #define KVM_HVA_ERR_RO_BAD (-2UL)
611
kvm_is_error_hva(unsigned long addr)612 static inline bool kvm_is_error_hva(unsigned long addr)
613 {
614 return IS_ERR_VALUE(addr);
615 }
616
617 #define ASYNC_PF_PER_VCPU 64
618 struct kvm_arch_async_pf {
619 unsigned long pfault_token;
620 };
621
622 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
623
624 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
625 struct kvm_async_pf *work);
626
627 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
628 struct kvm_async_pf *work);
629
630 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
631 struct kvm_async_pf *work);
632
633 extern int sie64a(struct kvm_s390_sie_block *, u64 *);
634 extern char sie_exit;
635
kvm_arch_hardware_disable(void)636 static inline void kvm_arch_hardware_disable(void) {}
kvm_arch_check_processor_compat(void * rtn)637 static inline void kvm_arch_check_processor_compat(void *rtn) {}
kvm_arch_sync_events(struct kvm * kvm)638 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_vcpu_uninit(struct kvm_vcpu * vcpu)639 static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
kvm_arch_sched_in(struct kvm_vcpu * vcpu,int cpu)640 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
kvm_arch_free_memslot(struct kvm * kvm,struct kvm_memory_slot * free,struct kvm_memory_slot * dont)641 static inline void kvm_arch_free_memslot(struct kvm *kvm,
642 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
kvm_arch_memslots_updated(struct kvm * kvm,struct kvm_memslots * slots)643 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)644 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_flush_shadow_memslot(struct kvm * kvm,struct kvm_memory_slot * slot)645 static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
646 struct kvm_memory_slot *slot) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)647 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)648 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
649
650 #endif
651