2 * definition for kernel virtual machines on s390
4 * Copyright IBM Corp. 2008, 2009
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.
10 * Author(s): Carsten Otte <cotte@de.ibm.com>
14 #ifndef ASM_KVM_HOST_H
15 #define ASM_KVM_HOST_H
16 #include <linux/hrtimer.h>
17 #include <linux/interrupt.h>
18 #include <linux/kvm_host.h>
19 #include <linux/kvm.h>
20 #include <asm/debug.h>
24 #define KVM_MAX_VCPUS 64
25 #define KVM_USER_MEM_SLOTS 32
28 * These seem to be used for allocating ->chip in the routing table,
29 * which we don't use. 4096 is an out-of-thin-air value. If we need
30 * to look at ->chip later on, we'll need to revisit this.
32 #define KVM_NR_IRQCHIPS 1
33 #define KVM_IRQCHIP_NUM_PINS 4096
40 } __attribute__((packed));
46 unsigned long kh : 31;
47 unsigned long kg : 32;
52 union ipte_control ipte_control;
56 struct sca_entry cpu[64];
57 } __attribute__((packed));
59 #define CPUSTAT_STOPPED 0x80000000
60 #define CPUSTAT_WAIT 0x10000000
61 #define CPUSTAT_ECALL_PEND 0x08000000
62 #define CPUSTAT_STOP_INT 0x04000000
63 #define CPUSTAT_IO_INT 0x02000000
64 #define CPUSTAT_EXT_INT 0x01000000
65 #define CPUSTAT_RUNNING 0x00800000
66 #define CPUSTAT_RETAINED 0x00400000
67 #define CPUSTAT_TIMING_SUB 0x00020000
68 #define CPUSTAT_SIE_SUB 0x00010000
69 #define CPUSTAT_RRF 0x00008000
70 #define CPUSTAT_SLSV 0x00004000
71 #define CPUSTAT_SLSR 0x00002000
72 #define CPUSTAT_ZARCH 0x00000800
73 #define CPUSTAT_MCDS 0x00000100
74 #define CPUSTAT_SM 0x00000080
75 #define CPUSTAT_G 0x00000008
76 #define CPUSTAT_GED 0x00000004
77 #define CPUSTAT_J 0x00000002
78 #define CPUSTAT_P 0x00000001
80 struct kvm_s390_sie_block {
81 atomic_t cpuflags; /* 0x0000 */
82 __u32 prefix; /* 0x0004 */
83 __u8 reserved08[4]; /* 0x0008 */
84 #define PROG_IN_SIE (1<<0)
85 __u32 prog0c; /* 0x000c */
86 __u8 reserved10[16]; /* 0x0010 */
87 #define PROG_BLOCK_SIE 0x00000001
88 atomic_t prog20; /* 0x0020 */
89 __u8 reserved24[4]; /* 0x0024 */
90 __u64 cputm; /* 0x0028 */
91 __u64 ckc; /* 0x0030 */
92 __u64 epoch; /* 0x0038 */
93 __u8 reserved40[4]; /* 0x0040 */
94 #define LCTL_CR0 0x8000
95 #define LCTL_CR6 0x0200
96 #define LCTL_CR14 0x0002
97 __u16 lctl; /* 0x0044 */
98 __s16 icpua; /* 0x0046 */
99 #define ICTL_LPSW 0x00400000
100 #define ICTL_ISKE 0x00004000
101 #define ICTL_SSKE 0x00002000
102 #define ICTL_RRBE 0x00001000
103 __u32 ictl; /* 0x0048 */
104 __u32 eca; /* 0x004c */
105 __u8 icptcode; /* 0x0050 */
106 __u8 reserved51; /* 0x0051 */
107 __u16 ihcpu; /* 0x0052 */
108 __u8 reserved54[2]; /* 0x0054 */
109 __u16 ipa; /* 0x0056 */
110 __u32 ipb; /* 0x0058 */
111 __u32 scaoh; /* 0x005c */
112 __u8 reserved60; /* 0x0060 */
113 __u8 ecb; /* 0x0061 */
114 __u8 ecb2; /* 0x0062 */
115 __u8 reserved63[1]; /* 0x0063 */
116 __u32 scaol; /* 0x0064 */
117 __u8 reserved68[4]; /* 0x0068 */
118 __u32 todpr; /* 0x006c */
119 __u8 reserved70[32]; /* 0x0070 */
120 psw_t gpsw; /* 0x0090 */
121 __u64 gg14; /* 0x00a0 */
122 __u64 gg15; /* 0x00a8 */
123 __u8 reservedb0[30]; /* 0x00b0 */
124 __u16 iprcc; /* 0x00ce */
125 __u8 reservedd0[48]; /* 0x00d0 */
126 __u64 gcr[16]; /* 0x0100 */
127 __u64 gbea; /* 0x0180 */
128 __u8 reserved188[24]; /* 0x0188 */
129 __u32 fac; /* 0x01a0 */
130 __u8 reserved1a4[20]; /* 0x01a4 */
131 __u64 cbrlo; /* 0x01b8 */
132 __u8 reserved1c0[30]; /* 0x01c0 */
133 __u64 pp; /* 0x01de */
134 __u8 reserved1e6[2]; /* 0x01e6 */
135 __u64 itdba; /* 0x01e8 */
136 __u8 reserved1f0[16]; /* 0x01f0 */
137 } __attribute__((packed));
139 struct kvm_s390_itdb {
144 struct kvm_s390_sie_block sie_block;
145 __u8 reserved200[1024]; /* 0x0200 */
146 struct kvm_s390_itdb itdb; /* 0x0600 */
147 __u8 reserved700[2304]; /* 0x0700 */
150 struct kvm_vcpu_stat {
153 u32 exit_external_request;
154 u32 exit_external_interrupt;
155 u32 exit_stop_request;
157 u32 exit_instruction;
158 u32 instruction_lctl;
159 u32 instruction_lctlg;
160 u32 exit_program_interruption;
161 u32 exit_instr_and_program;
162 u32 deliver_external_call;
163 u32 deliver_emergency_signal;
164 u32 deliver_service_signal;
165 u32 deliver_virtio_interrupt;
166 u32 deliver_stop_signal;
167 u32 deliver_prefix_signal;
168 u32 deliver_restart_signal;
169 u32 deliver_program_int;
172 u32 instruction_pfmf;
173 u32 instruction_stidp;
175 u32 instruction_stpx;
176 u32 instruction_stap;
177 u32 instruction_storage_key;
178 u32 instruction_ipte_interlock;
179 u32 instruction_stsch;
180 u32 instruction_chsc;
181 u32 instruction_stsi;
182 u32 instruction_stfl;
183 u32 instruction_tprot;
184 u32 instruction_essa;
185 u32 instruction_sigp_sense;
186 u32 instruction_sigp_sense_running;
187 u32 instruction_sigp_external_call;
188 u32 instruction_sigp_emergency;
189 u32 instruction_sigp_stop;
190 u32 instruction_sigp_arch;
191 u32 instruction_sigp_prefix;
192 u32 instruction_sigp_restart;
198 #define PGM_OPERATION 0x01
199 #define PGM_PRIVILEGED_OP 0x02
200 #define PGM_EXECUTE 0x03
201 #define PGM_PROTECTION 0x04
202 #define PGM_ADDRESSING 0x05
203 #define PGM_SPECIFICATION 0x06
204 #define PGM_DATA 0x07
205 #define PGM_FIXED_POINT_OVERFLOW 0x08
206 #define PGM_FIXED_POINT_DIVIDE 0x09
207 #define PGM_DECIMAL_OVERFLOW 0x0a
208 #define PGM_DECIMAL_DIVIDE 0x0b
209 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
210 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
211 #define PGM_HFP_SIGNIFICANCE 0x0e
212 #define PGM_HFP_DIVIDE 0x0f
213 #define PGM_SEGMENT_TRANSLATION 0x10
214 #define PGM_PAGE_TRANSLATION 0x11
215 #define PGM_TRANSLATION_SPEC 0x12
216 #define PGM_SPECIAL_OPERATION 0x13
217 #define PGM_OPERAND 0x15
218 #define PGM_TRACE_TABEL 0x16
219 #define PGM_SPACE_SWITCH 0x1c
220 #define PGM_HFP_SQUARE_ROOT 0x1d
221 #define PGM_PC_TRANSLATION_SPEC 0x1f
222 #define PGM_AFX_TRANSLATION 0x20
223 #define PGM_ASX_TRANSLATION 0x21
224 #define PGM_LX_TRANSLATION 0x22
225 #define PGM_EX_TRANSLATION 0x23
226 #define PGM_PRIMARY_AUTHORITY 0x24
227 #define PGM_SECONDARY_AUTHORITY 0x25
228 #define PGM_LFX_TRANSLATION 0x26
229 #define PGM_LSX_TRANSLATION 0x27
230 #define PGM_ALET_SPECIFICATION 0x28
231 #define PGM_ALEN_TRANSLATION 0x29
232 #define PGM_ALE_SEQUENCE 0x2a
233 #define PGM_ASTE_VALIDITY 0x2b
234 #define PGM_ASTE_SEQUENCE 0x2c
235 #define PGM_EXTENDED_AUTHORITY 0x2d
236 #define PGM_LSTE_SEQUENCE 0x2e
237 #define PGM_ASTE_INSTANCE 0x2f
238 #define PGM_STACK_FULL 0x30
239 #define PGM_STACK_EMPTY 0x31
240 #define PGM_STACK_SPECIFICATION 0x32
241 #define PGM_STACK_TYPE 0x33
242 #define PGM_STACK_OPERATION 0x34
243 #define PGM_ASCE_TYPE 0x38
244 #define PGM_REGION_FIRST_TRANS 0x39
245 #define PGM_REGION_SECOND_TRANS 0x3a
246 #define PGM_REGION_THIRD_TRANS 0x3b
247 #define PGM_MONITOR 0x40
249 #define PGM_CRYPTO_OPERATION 0x119
251 struct kvm_s390_interrupt_info {
252 struct list_head list;
255 struct kvm_s390_io_info io;
256 struct kvm_s390_ext_info ext;
257 struct kvm_s390_pgm_info pgm;
258 struct kvm_s390_emerg_info emerg;
259 struct kvm_s390_extcall_info extcall;
260 struct kvm_s390_prefix_info prefix;
261 struct kvm_s390_mchk_info mchk;
265 /* for local_interrupt.action_flags */
266 #define ACTION_STORE_ON_STOP (1<<0)
267 #define ACTION_STOP_ON_STOP (1<<1)
269 struct kvm_s390_local_interrupt {
271 struct list_head list;
273 struct kvm_s390_float_interrupt *float_int;
274 int timer_due; /* event indicator for waitqueue below */
275 wait_queue_head_t *wq;
277 unsigned int action_bits;
280 struct kvm_s390_float_interrupt {
282 struct list_head list;
285 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
286 unsigned int irq_count;
290 struct kvm_vcpu_arch {
291 struct kvm_s390_sie_block *sie_block;
292 s390_fp_regs host_fpregs;
293 unsigned int host_acrs[NUM_ACRS];
294 s390_fp_regs guest_fpregs;
295 struct kvm_s390_local_interrupt local_int;
296 struct hrtimer ckc_timer;
297 struct tasklet_struct tasklet;
298 struct kvm_s390_pgm_info pgm;
304 #define KVM_S390_PFAULT_TOKEN_INVALID (-1UL)
305 unsigned long pfault_token;
306 unsigned long pfault_select;
307 unsigned long pfault_compare;
311 u32 remote_tlb_flush;
314 struct kvm_arch_memory_slot {
317 struct s390_map_info {
318 struct list_head list;
324 struct s390_io_adapter {
330 struct rw_semaphore maps_lock;
331 struct list_head maps;
335 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
336 #define MAX_S390_ADAPTER_MAPS 256
339 struct sca_block *sca;
341 struct kvm_s390_float_interrupt float_int;
342 struct kvm_device *flic;
347 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
348 wait_queue_head_t ipte_wq;
351 #define KVM_HVA_ERR_BAD (-1UL)
352 #define KVM_HVA_ERR_RO_BAD (-2UL)
354 static inline bool kvm_is_error_hva(unsigned long addr)
356 return IS_ERR_VALUE(addr);
359 #define ASYNC_PF_PER_VCPU 64
362 struct kvm_arch_async_pf {
363 unsigned long pfault_token;
366 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
368 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
369 struct kvm_async_pf *work);
371 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
372 struct kvm_async_pf *work);
374 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
375 struct kvm_async_pf *work);
377 extern int sie64a(struct kvm_s390_sie_block *, u64 *);
378 extern char sie_exit;