KVM: s390: sigp: separate preparation handlers
[deliverable/linux.git] / arch / s390 / include / asm / kvm_host.h
CommitLineData
b0c632db 1/*
a53c8fab 2 * definition for kernel virtual machines on s390
b0c632db 3 *
a53c8fab 4 * Copyright IBM Corp. 2008, 2009
b0c632db
HC
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
65647300
PB
16
17#include <linux/types.h>
ca872302
CB
18#include <linux/hrtimer.h>
19#include <linux/interrupt.h>
65647300 20#include <linux/kvm_types.h>
b0c632db 21#include <linux/kvm_host.h>
81aa8efe 22#include <linux/kvm.h>
b0c632db 23#include <asm/debug.h>
e86a6ed6 24#include <asm/cpu.h>
841b91c5 25#include <asm/isc.h>
b0c632db
HC
26
27#define KVM_MAX_VCPUS 64
bbacc0c1 28#define KVM_USER_MEM_SLOTS 32
b0c632db 29
84223598
CH
30/*
31 * These seem to be used for allocating ->chip in the routing table,
32 * which we don't use. 4096 is an out-of-thin-air value. If we need
33 * to look at ->chip later on, we'll need to revisit this.
34 */
35#define KVM_NR_IRQCHIPS 1
36#define KVM_IRQCHIP_NUM_PINS 4096
37
4953919f
DH
38#define SIGP_CTRL_C 0x00800000
39
b0c632db 40struct sca_entry {
4953919f 41 atomic_t ctrl;
fc34531d 42 __u32 reserved;
b0c632db
HC
43 __u64 sda;
44 __u64 reserved2[2];
45} __attribute__((packed));
46
8a242234
HC
47union ipte_control {
48 unsigned long val;
49 struct {
50 unsigned long k : 1;
51 unsigned long kh : 31;
52 unsigned long kg : 32;
53 };
54};
b0c632db
HC
55
56struct sca_block {
8a242234 57 union ipte_control ipte_control;
b0c632db
HC
58 __u64 reserved[5];
59 __u64 mcn;
60 __u64 reserved2;
61 struct sca_entry cpu[64];
62} __attribute__((packed));
63
9e6dabef 64#define CPUSTAT_STOPPED 0x80000000
b0c632db
HC
65#define CPUSTAT_WAIT 0x10000000
66#define CPUSTAT_ECALL_PEND 0x08000000
67#define CPUSTAT_STOP_INT 0x04000000
68#define CPUSTAT_IO_INT 0x02000000
69#define CPUSTAT_EXT_INT 0x01000000
70#define CPUSTAT_RUNNING 0x00800000
71#define CPUSTAT_RETAINED 0x00400000
72#define CPUSTAT_TIMING_SUB 0x00020000
73#define CPUSTAT_SIE_SUB 0x00010000
74#define CPUSTAT_RRF 0x00008000
75#define CPUSTAT_SLSV 0x00004000
76#define CPUSTAT_SLSR 0x00002000
77#define CPUSTAT_ZARCH 0x00000800
78#define CPUSTAT_MCDS 0x00000100
79#define CPUSTAT_SM 0x00000080
8ad35755 80#define CPUSTAT_IBS 0x00000040
b0c632db 81#define CPUSTAT_G 0x00000008
69d0d3a3 82#define CPUSTAT_GED 0x00000004
b0c632db
HC
83#define CPUSTAT_J 0x00000002
84#define CPUSTAT_P 0x00000001
85
180c12fb 86struct kvm_s390_sie_block {
b0c632db 87 atomic_t cpuflags; /* 0x0000 */
fda902cb
MM
88 __u32 : 1; /* 0x0004 */
89 __u32 prefix : 18;
90 __u32 : 13;
95d38fd0
CB
91 __u8 reserved08[4]; /* 0x0008 */
92#define PROG_IN_SIE (1<<0)
93 __u32 prog0c; /* 0x000c */
49b99e1e
CB
94 __u8 reserved10[16]; /* 0x0010 */
95#define PROG_BLOCK_SIE 0x00000001
96 atomic_t prog20; /* 0x0020 */
97 __u8 reserved24[4]; /* 0x0024 */
b0c632db
HC
98 __u64 cputm; /* 0x0028 */
99 __u64 ckc; /* 0x0030 */
100 __u64 epoch; /* 0x0038 */
101 __u8 reserved40[4]; /* 0x0040 */
ba5c1e9b 102#define LCTL_CR0 0x8000
d8346b7d 103#define LCTL_CR6 0x0200
27291e21
DH
104#define LCTL_CR9 0x0040
105#define LCTL_CR10 0x0020
106#define LCTL_CR11 0x0010
48a3e950 107#define LCTL_CR14 0x0002
b0c632db
HC
108 __u16 lctl; /* 0x0044 */
109 __s16 icpua; /* 0x0046 */
27291e21
DH
110#define ICTL_PINT 0x20000000
111#define ICTL_LPSW 0x00400000
112#define ICTL_STCTL 0x00040000
113#define ICTL_ISKE 0x00004000
114#define ICTL_SSKE 0x00002000
115#define ICTL_RRBE 0x00001000
5a5e6536 116#define ICTL_TPROT 0x00000200
b0c632db
HC
117 __u32 ictl; /* 0x0048 */
118 __u32 eca; /* 0x004c */
8712836b
DH
119#define ICPT_INST 0x04
120#define ICPT_PROGI 0x08
121#define ICPT_INSTPROGI 0x0C
122#define ICPT_OPEREXC 0x2C
123#define ICPT_PARTEXEC 0x38
124#define ICPT_IOINST 0x40
b0c632db
HC
125 __u8 icptcode; /* 0x0050 */
126 __u8 reserved51; /* 0x0051 */
127 __u16 ihcpu; /* 0x0052 */
128 __u8 reserved54[2]; /* 0x0054 */
129 __u16 ipa; /* 0x0056 */
130 __u32 ipb; /* 0x0058 */
131 __u32 scaoh; /* 0x005c */
132 __u8 reserved60; /* 0x0060 */
133 __u8 ecb; /* 0x0061 */
69d0d3a3
CB
134 __u8 ecb2; /* 0x0062 */
135 __u8 reserved63[1]; /* 0x0063 */
b0c632db
HC
136 __u32 scaol; /* 0x0064 */
137 __u8 reserved68[4]; /* 0x0068 */
138 __u32 todpr; /* 0x006c */
092670cd 139 __u8 reserved70[32]; /* 0x0070 */
b0c632db
HC
140 psw_t gpsw; /* 0x0090 */
141 __u64 gg14; /* 0x00a0 */
142 __u64 gg15; /* 0x00a8 */
f14d82e0
TH
143 __u8 reservedb0[20]; /* 0x00b0 */
144 __u16 extcpuaddr; /* 0x00c4 */
145 __u16 eic; /* 0x00c6 */
146 __u32 reservedc8; /* 0x00c8 */
439716a5
DH
147 __u16 pgmilc; /* 0x00cc */
148 __u16 iprcc; /* 0x00ce */
149 __u32 dxc; /* 0x00d0 */
150 __u16 mcn; /* 0x00d4 */
151 __u8 perc; /* 0x00d6 */
152 __u8 peratmid; /* 0x00d7 */
153 __u64 peraddr; /* 0x00d8 */
154 __u8 eai; /* 0x00e0 */
155 __u8 peraid; /* 0x00e1 */
156 __u8 oai; /* 0x00e2 */
157 __u8 armid; /* 0x00e3 */
158 __u8 reservede4[4]; /* 0x00e4 */
159 __u64 tecmc; /* 0x00e8 */
5102ee87
TK
160 __u8 reservedf0[12]; /* 0x00f0 */
161#define CRYCB_FORMAT1 0x00000001
162 __u32 crycbd; /* 0x00fc */
b0c632db
HC
163 __u64 gcr[16]; /* 0x0100 */
164 __u64 gbea; /* 0x0180 */
ef50f7ac
CB
165 __u8 reserved188[24]; /* 0x0188 */
166 __u32 fac; /* 0x01a0 */
b31288fa
KW
167 __u8 reserved1a4[20]; /* 0x01a4 */
168 __u64 cbrlo; /* 0x01b8 */
7cbb39d4 169 __u8 reserved1c0[30]; /* 0x01c0 */
672550fb
CB
170 __u64 pp; /* 0x01de */
171 __u8 reserved1e6[2]; /* 0x01e6 */
7feb6bb8
MM
172 __u64 itdba; /* 0x01e8 */
173 __u8 reserved1f0[16]; /* 0x01f0 */
b0c632db
HC
174} __attribute__((packed));
175
7feb6bb8
MM
176struct kvm_s390_itdb {
177 __u8 data[256];
178} __packed;
179
180struct sie_page {
181 struct kvm_s390_sie_block sie_block;
182 __u8 reserved200[1024]; /* 0x0200 */
183 struct kvm_s390_itdb itdb; /* 0x0600 */
184 __u8 reserved700[2304]; /* 0x0700 */
185} __packed;
186
b0c632db
HC
187struct kvm_vcpu_stat {
188 u32 exit_userspace;
0eaeafa1 189 u32 exit_null;
8f2abe6a
CB
190 u32 exit_external_request;
191 u32 exit_external_interrupt;
192 u32 exit_stop_request;
193 u32 exit_validity;
ba5c1e9b 194 u32 exit_instruction;
ce2e4f0b 195 u32 halt_wakeup;
ba5c1e9b 196 u32 instruction_lctl;
f5e10b09 197 u32 instruction_lctlg;
aba07508
DH
198 u32 instruction_stctl;
199 u32 instruction_stctg;
ba5c1e9b
CO
200 u32 exit_program_interruption;
201 u32 exit_instr_and_program;
7697e71f 202 u32 deliver_external_call;
ba5c1e9b
CO
203 u32 deliver_emergency_signal;
204 u32 deliver_service_signal;
205 u32 deliver_virtio_interrupt;
206 u32 deliver_stop_signal;
207 u32 deliver_prefix_signal;
208 u32 deliver_restart_signal;
209 u32 deliver_program_int;
d8346b7d 210 u32 deliver_io_int;
ba5c1e9b 211 u32 exit_wait_state;
69d0d3a3 212 u32 instruction_pfmf;
453423dc
CB
213 u32 instruction_stidp;
214 u32 instruction_spx;
215 u32 instruction_stpx;
216 u32 instruction_stap;
217 u32 instruction_storage_key;
8a242234 218 u32 instruction_ipte_interlock;
453423dc
CB
219 u32 instruction_stsch;
220 u32 instruction_chsc;
221 u32 instruction_stsi;
222 u32 instruction_stfl;
bb25b9ba 223 u32 instruction_tprot;
b31288fa 224 u32 instruction_essa;
5288fbf0 225 u32 instruction_sigp_sense;
bd59d3a4 226 u32 instruction_sigp_sense_running;
7697e71f 227 u32 instruction_sigp_external_call;
5288fbf0
CB
228 u32 instruction_sigp_emergency;
229 u32 instruction_sigp_stop;
230 u32 instruction_sigp_arch;
231 u32 instruction_sigp_prefix;
232 u32 instruction_sigp_restart;
388186bc 233 u32 diagnose_10;
e28acfea 234 u32 diagnose_44;
41628d33 235 u32 diagnose_9c;
b0c632db
HC
236};
237
bcd84683
JF
238#define PGM_OPERATION 0x01
239#define PGM_PRIVILEGED_OP 0x02
240#define PGM_EXECUTE 0x03
241#define PGM_PROTECTION 0x04
242#define PGM_ADDRESSING 0x05
243#define PGM_SPECIFICATION 0x06
244#define PGM_DATA 0x07
245#define PGM_FIXED_POINT_OVERFLOW 0x08
246#define PGM_FIXED_POINT_DIVIDE 0x09
247#define PGM_DECIMAL_OVERFLOW 0x0a
248#define PGM_DECIMAL_DIVIDE 0x0b
249#define PGM_HFP_EXPONENT_OVERFLOW 0x0c
250#define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
251#define PGM_HFP_SIGNIFICANCE 0x0e
252#define PGM_HFP_DIVIDE 0x0f
253#define PGM_SEGMENT_TRANSLATION 0x10
254#define PGM_PAGE_TRANSLATION 0x11
255#define PGM_TRANSLATION_SPEC 0x12
256#define PGM_SPECIAL_OPERATION 0x13
257#define PGM_OPERAND 0x15
258#define PGM_TRACE_TABEL 0x16
259#define PGM_SPACE_SWITCH 0x1c
260#define PGM_HFP_SQUARE_ROOT 0x1d
261#define PGM_PC_TRANSLATION_SPEC 0x1f
262#define PGM_AFX_TRANSLATION 0x20
263#define PGM_ASX_TRANSLATION 0x21
264#define PGM_LX_TRANSLATION 0x22
265#define PGM_EX_TRANSLATION 0x23
266#define PGM_PRIMARY_AUTHORITY 0x24
267#define PGM_SECONDARY_AUTHORITY 0x25
268#define PGM_LFX_TRANSLATION 0x26
269#define PGM_LSX_TRANSLATION 0x27
270#define PGM_ALET_SPECIFICATION 0x28
271#define PGM_ALEN_TRANSLATION 0x29
272#define PGM_ALE_SEQUENCE 0x2a
273#define PGM_ASTE_VALIDITY 0x2b
274#define PGM_ASTE_SEQUENCE 0x2c
275#define PGM_EXTENDED_AUTHORITY 0x2d
276#define PGM_LSTE_SEQUENCE 0x2e
277#define PGM_ASTE_INSTANCE 0x2f
278#define PGM_STACK_FULL 0x30
279#define PGM_STACK_EMPTY 0x31
280#define PGM_STACK_SPECIFICATION 0x32
281#define PGM_STACK_TYPE 0x33
282#define PGM_STACK_OPERATION 0x34
283#define PGM_ASCE_TYPE 0x38
284#define PGM_REGION_FIRST_TRANS 0x39
285#define PGM_REGION_SECOND_TRANS 0x3a
286#define PGM_REGION_THIRD_TRANS 0x3b
287#define PGM_MONITOR 0x40
288#define PGM_PER 0x80
289#define PGM_CRYPTO_OPERATION 0x119
ba5c1e9b 290
180c12fb 291struct kvm_s390_interrupt_info {
ba5c1e9b
CO
292 struct list_head list;
293 u64 type;
294 union {
180c12fb
CB
295 struct kvm_s390_io_info io;
296 struct kvm_s390_ext_info ext;
297 struct kvm_s390_pgm_info pgm;
8bb3a2eb 298 struct kvm_s390_emerg_info emerg;
7697e71f 299 struct kvm_s390_extcall_info extcall;
180c12fb 300 struct kvm_s390_prefix_info prefix;
48a3e950 301 struct kvm_s390_mchk_info mchk;
ba5c1e9b
CO
302 };
303};
304
5288fbf0 305/* for local_interrupt.action_flags */
9ace903d
CE
306#define ACTION_STORE_ON_STOP (1<<0)
307#define ACTION_STOP_ON_STOP (1<<1)
5288fbf0 308
180c12fb 309struct kvm_s390_local_interrupt {
ba5c1e9b
CO
310 spinlock_t lock;
311 struct list_head list;
312 atomic_t active;
180c12fb 313 struct kvm_s390_float_interrupt *float_int;
d0321a24 314 wait_queue_head_t *wq;
5288fbf0
CB
315 atomic_t *cpuflags;
316 unsigned int action_bits;
ba5c1e9b
CO
317};
318
180c12fb 319struct kvm_s390_float_interrupt {
ba5c1e9b
CO
320 spinlock_t lock;
321 struct list_head list;
322 atomic_t active;
323 int next_rr_cpu;
609433fb 324 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
a91b8ebe 325 unsigned int irq_count;
ba5c1e9b
CO
326};
327
27291e21
DH
328struct kvm_hw_wp_info_arch {
329 unsigned long addr;
330 unsigned long phys_addr;
331 int len;
332 char *old_data;
333};
334
335struct kvm_hw_bp_info_arch {
336 unsigned long addr;
337 int len;
338};
339
340/*
341 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
342 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
343 * arch/s390/include/uapi/asm/kvm.h
344 */
345#define KVM_GUESTDBG_EXIT_PENDING 0x10000000
346
347#define guestdbg_enabled(vcpu) \
348 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
349#define guestdbg_sstep_enabled(vcpu) \
350 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
351#define guestdbg_hw_bp_enabled(vcpu) \
352 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
353#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
354 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
355
356struct kvm_guestdbg_info_arch {
357 unsigned long cr0;
358 unsigned long cr9;
359 unsigned long cr10;
360 unsigned long cr11;
361 struct kvm_hw_bp_info_arch *hw_bp_info;
362 struct kvm_hw_wp_info_arch *hw_wp_info;
363 int nr_hw_bp;
364 int nr_hw_wp;
365 unsigned long last_bp;
366};
ba5c1e9b 367
b0c632db 368struct kvm_vcpu_arch {
180c12fb 369 struct kvm_s390_sie_block *sie_block;
b0c632db
HC
370 s390_fp_regs host_fpregs;
371 unsigned int host_acrs[NUM_ACRS];
372 s390_fp_regs guest_fpregs;
180c12fb 373 struct kvm_s390_local_interrupt local_int;
ca872302 374 struct hrtimer ckc_timer;
1b0462e5 375 struct kvm_s390_pgm_info pgm;
453423dc 376 union {
e86a6ed6
HC
377 struct cpuid cpu_id;
378 u64 stidp_data;
453423dc 379 };
598841ca 380 struct gmap *gmap;
27291e21 381 struct kvm_guestdbg_info_arch guestdbg;
3c038e6b
DD
382#define KVM_S390_PFAULT_TOKEN_INVALID (-1UL)
383 unsigned long pfault_token;
384 unsigned long pfault_select;
385 unsigned long pfault_compare;
b0c632db
HC
386};
387
388struct kvm_vm_stat {
389 u32 remote_tlb_flush;
390};
391
db3fe4eb
TY
392struct kvm_arch_memory_slot {
393};
394
841b91c5
CH
395struct s390_map_info {
396 struct list_head list;
397 __u64 guest_addr;
398 __u64 addr;
399 struct page *page;
400};
401
402struct s390_io_adapter {
403 unsigned int id;
404 int isc;
405 bool maskable;
406 bool masked;
407 bool swap;
408 struct rw_semaphore maps_lock;
409 struct list_head maps;
410 atomic_t nr_maps;
411};
412
413#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
414#define MAX_S390_ADAPTER_MAPS 256
415
5102ee87
TK
416struct kvm_s390_crypto {
417 struct kvm_s390_crypto_cb *crycb;
418 __u32 crycbd;
419};
420
421struct kvm_s390_crypto_cb {
422 __u8 reserved00[128]; /* 0x0000 */
423};
424
b0c632db 425struct kvm_arch{
b0c632db
HC
426 struct sca_block *sca;
427 debug_info_t *dbf;
180c12fb 428 struct kvm_s390_float_interrupt float_int;
c05c4186 429 struct kvm_device *flic;
598841ca 430 struct gmap *gmap;
fa6b7fe9 431 int css_support;
84223598 432 int use_irqchip;
b31605c1 433 int use_cmma;
6352e4d2 434 int user_cpu_state_ctrl;
841b91c5 435 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
8a242234 436 wait_queue_head_t ipte_wq;
a6b7e459
TH
437 int ipte_lock_count;
438 struct mutex ipte_mutex;
8ad35755 439 spinlock_t start_stop_lock;
5102ee87 440 struct kvm_s390_crypto crypto;
b0c632db
HC
441};
442
bf640876
DD
443#define KVM_HVA_ERR_BAD (-1UL)
444#define KVM_HVA_ERR_RO_BAD (-2UL)
445
446static inline bool kvm_is_error_hva(unsigned long addr)
447{
448 return IS_ERR_VALUE(addr);
449}
450
3c038e6b 451#define ASYNC_PF_PER_VCPU 64
3c038e6b
DD
452struct kvm_arch_async_pf {
453 unsigned long pfault_token;
454};
455
456bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
457
458void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
459 struct kvm_async_pf *work);
460
461void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
462 struct kvm_async_pf *work);
463
464void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
465 struct kvm_async_pf *work);
466
5a32c1af 467extern int sie64a(struct kvm_s390_sie_block *, u64 *);
b764bb1c 468extern char sie_exit;
0865e636 469
13a34e06 470static inline void kvm_arch_hardware_disable(void) {}
0865e636
RK
471static inline void kvm_arch_check_processor_compat(void *rtn) {}
472static inline void kvm_arch_exit(void) {}
473static inline void kvm_arch_sync_events(struct kvm *kvm) {}
474static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
475static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
476static inline void kvm_arch_free_memslot(struct kvm *kvm,
477 struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
478static inline void kvm_arch_memslots_updated(struct kvm *kvm) {}
479static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
480static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
481 struct kvm_memory_slot *slot) {}
482
b0c632db 483#endif
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