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_CR9 0x0040
97 #define LCTL_CR10 0x0020
98 #define LCTL_CR11 0x0010
99 #define LCTL_CR14 0x0002
100 __u16 lctl; /* 0x0044 */
101 __s16 icpua; /* 0x0046 */
102 #define ICTL_PINT 0x20000000
103 #define ICTL_LPSW 0x00400000
104 #define ICTL_STCTL 0x00040000
105 #define ICTL_ISKE 0x00004000
106 #define ICTL_SSKE 0x00002000
107 #define ICTL_RRBE 0x00001000
108 __u32 ictl; /* 0x0048 */
109 __u32 eca; /* 0x004c */
110 #define ICPT_INST 0x04
111 #define ICPT_PROGI 0x08
112 #define ICPT_INSTPROGI 0x0C
113 #define ICPT_OPEREXC 0x2C
114 #define ICPT_PARTEXEC 0x38
115 #define ICPT_IOINST 0x40
116 __u8 icptcode; /* 0x0050 */
117 __u8 reserved51; /* 0x0051 */
118 __u16 ihcpu; /* 0x0052 */
119 __u8 reserved54[2]; /* 0x0054 */
120 __u16 ipa; /* 0x0056 */
121 __u32 ipb; /* 0x0058 */
122 __u32 scaoh; /* 0x005c */
123 __u8 reserved60; /* 0x0060 */
124 __u8 ecb; /* 0x0061 */
125 __u8 ecb2; /* 0x0062 */
126 __u8 reserved63[1]; /* 0x0063 */
127 __u32 scaol; /* 0x0064 */
128 __u8 reserved68[4]; /* 0x0068 */
129 __u32 todpr; /* 0x006c */
130 __u8 reserved70[32]; /* 0x0070 */
131 psw_t gpsw; /* 0x0090 */
132 __u64 gg14; /* 0x00a0 */
133 __u64 gg15; /* 0x00a8 */
134 __u8 reservedb0[28]; /* 0x00b0 */
135 __u16 pgmilc; /* 0x00cc */
136 __u16 iprcc; /* 0x00ce */
137 __u32 dxc; /* 0x00d0 */
138 __u16 mcn; /* 0x00d4 */
139 __u8 perc; /* 0x00d6 */
140 __u8 peratmid; /* 0x00d7 */
141 __u64 peraddr; /* 0x00d8 */
142 __u8 eai; /* 0x00e0 */
143 __u8 peraid; /* 0x00e1 */
144 __u8 oai; /* 0x00e2 */
145 __u8 armid; /* 0x00e3 */
146 __u8 reservede4[4]; /* 0x00e4 */
147 __u64 tecmc; /* 0x00e8 */
148 __u8 reservedf0[16]; /* 0x00f0 */
149 __u64 gcr[16]; /* 0x0100 */
150 __u64 gbea; /* 0x0180 */
151 __u8 reserved188[24]; /* 0x0188 */
152 __u32 fac; /* 0x01a0 */
153 __u8 reserved1a4[20]; /* 0x01a4 */
154 __u64 cbrlo; /* 0x01b8 */
155 __u8 reserved1c0[30]; /* 0x01c0 */
156 __u64 pp; /* 0x01de */
157 __u8 reserved1e6[2]; /* 0x01e6 */
158 __u64 itdba; /* 0x01e8 */
159 __u8 reserved1f0[16]; /* 0x01f0 */
160 } __attribute__((packed));
162 struct kvm_s390_itdb {
167 struct kvm_s390_sie_block sie_block;
168 __u8 reserved200[1024]; /* 0x0200 */
169 struct kvm_s390_itdb itdb; /* 0x0600 */
170 __u8 reserved700[2304]; /* 0x0700 */
173 struct kvm_vcpu_stat {
176 u32 exit_external_request;
177 u32 exit_external_interrupt;
178 u32 exit_stop_request;
180 u32 exit_instruction;
181 u32 instruction_lctl;
182 u32 instruction_lctlg;
183 u32 instruction_stctl;
184 u32 instruction_stctg;
185 u32 exit_program_interruption;
186 u32 exit_instr_and_program;
187 u32 deliver_external_call;
188 u32 deliver_emergency_signal;
189 u32 deliver_service_signal;
190 u32 deliver_virtio_interrupt;
191 u32 deliver_stop_signal;
192 u32 deliver_prefix_signal;
193 u32 deliver_restart_signal;
194 u32 deliver_program_int;
197 u32 instruction_pfmf;
198 u32 instruction_stidp;
200 u32 instruction_stpx;
201 u32 instruction_stap;
202 u32 instruction_storage_key;
203 u32 instruction_ipte_interlock;
204 u32 instruction_stsch;
205 u32 instruction_chsc;
206 u32 instruction_stsi;
207 u32 instruction_stfl;
208 u32 instruction_tprot;
209 u32 instruction_essa;
210 u32 instruction_sigp_sense;
211 u32 instruction_sigp_sense_running;
212 u32 instruction_sigp_external_call;
213 u32 instruction_sigp_emergency;
214 u32 instruction_sigp_stop;
215 u32 instruction_sigp_arch;
216 u32 instruction_sigp_prefix;
217 u32 instruction_sigp_restart;
223 #define PGM_OPERATION 0x01
224 #define PGM_PRIVILEGED_OP 0x02
225 #define PGM_EXECUTE 0x03
226 #define PGM_PROTECTION 0x04
227 #define PGM_ADDRESSING 0x05
228 #define PGM_SPECIFICATION 0x06
229 #define PGM_DATA 0x07
230 #define PGM_FIXED_POINT_OVERFLOW 0x08
231 #define PGM_FIXED_POINT_DIVIDE 0x09
232 #define PGM_DECIMAL_OVERFLOW 0x0a
233 #define PGM_DECIMAL_DIVIDE 0x0b
234 #define PGM_HFP_EXPONENT_OVERFLOW 0x0c
235 #define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
236 #define PGM_HFP_SIGNIFICANCE 0x0e
237 #define PGM_HFP_DIVIDE 0x0f
238 #define PGM_SEGMENT_TRANSLATION 0x10
239 #define PGM_PAGE_TRANSLATION 0x11
240 #define PGM_TRANSLATION_SPEC 0x12
241 #define PGM_SPECIAL_OPERATION 0x13
242 #define PGM_OPERAND 0x15
243 #define PGM_TRACE_TABEL 0x16
244 #define PGM_SPACE_SWITCH 0x1c
245 #define PGM_HFP_SQUARE_ROOT 0x1d
246 #define PGM_PC_TRANSLATION_SPEC 0x1f
247 #define PGM_AFX_TRANSLATION 0x20
248 #define PGM_ASX_TRANSLATION 0x21
249 #define PGM_LX_TRANSLATION 0x22
250 #define PGM_EX_TRANSLATION 0x23
251 #define PGM_PRIMARY_AUTHORITY 0x24
252 #define PGM_SECONDARY_AUTHORITY 0x25
253 #define PGM_LFX_TRANSLATION 0x26
254 #define PGM_LSX_TRANSLATION 0x27
255 #define PGM_ALET_SPECIFICATION 0x28
256 #define PGM_ALEN_TRANSLATION 0x29
257 #define PGM_ALE_SEQUENCE 0x2a
258 #define PGM_ASTE_VALIDITY 0x2b
259 #define PGM_ASTE_SEQUENCE 0x2c
260 #define PGM_EXTENDED_AUTHORITY 0x2d
261 #define PGM_LSTE_SEQUENCE 0x2e
262 #define PGM_ASTE_INSTANCE 0x2f
263 #define PGM_STACK_FULL 0x30
264 #define PGM_STACK_EMPTY 0x31
265 #define PGM_STACK_SPECIFICATION 0x32
266 #define PGM_STACK_TYPE 0x33
267 #define PGM_STACK_OPERATION 0x34
268 #define PGM_ASCE_TYPE 0x38
269 #define PGM_REGION_FIRST_TRANS 0x39
270 #define PGM_REGION_SECOND_TRANS 0x3a
271 #define PGM_REGION_THIRD_TRANS 0x3b
272 #define PGM_MONITOR 0x40
274 #define PGM_CRYPTO_OPERATION 0x119
276 struct kvm_s390_interrupt_info {
277 struct list_head list;
280 struct kvm_s390_io_info io;
281 struct kvm_s390_ext_info ext;
282 struct kvm_s390_pgm_info pgm;
283 struct kvm_s390_emerg_info emerg;
284 struct kvm_s390_extcall_info extcall;
285 struct kvm_s390_prefix_info prefix;
286 struct kvm_s390_mchk_info mchk;
290 /* for local_interrupt.action_flags */
291 #define ACTION_STORE_ON_STOP (1<<0)
292 #define ACTION_STOP_ON_STOP (1<<1)
294 struct kvm_s390_local_interrupt {
296 struct list_head list;
298 struct kvm_s390_float_interrupt *float_int;
299 int timer_due; /* event indicator for waitqueue below */
300 wait_queue_head_t *wq;
302 unsigned int action_bits;
305 struct kvm_s390_float_interrupt {
307 struct list_head list;
310 unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
311 unsigned int irq_count;
314 struct kvm_hw_wp_info_arch {
316 unsigned long phys_addr;
321 struct kvm_hw_bp_info_arch {
327 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
328 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
329 * arch/s390/include/uapi/asm/kvm.h
331 #define KVM_GUESTDBG_EXIT_PENDING 0x10000000
333 #define guestdbg_enabled(vcpu) \
334 (vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
335 #define guestdbg_sstep_enabled(vcpu) \
336 (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
337 #define guestdbg_hw_bp_enabled(vcpu) \
338 (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
339 #define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
340 (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
342 struct kvm_guestdbg_info_arch {
347 struct kvm_hw_bp_info_arch *hw_bp_info;
348 struct kvm_hw_wp_info_arch *hw_wp_info;
351 unsigned long last_bp;
354 struct kvm_vcpu_arch {
355 struct kvm_s390_sie_block *sie_block;
356 s390_fp_regs host_fpregs;
357 unsigned int host_acrs[NUM_ACRS];
358 s390_fp_regs guest_fpregs;
359 struct kvm_s390_local_interrupt local_int;
360 struct hrtimer ckc_timer;
361 struct tasklet_struct tasklet;
362 struct kvm_s390_pgm_info pgm;
368 struct kvm_guestdbg_info_arch guestdbg;
369 #define KVM_S390_PFAULT_TOKEN_INVALID (-1UL)
370 unsigned long pfault_token;
371 unsigned long pfault_select;
372 unsigned long pfault_compare;
376 u32 remote_tlb_flush;
379 struct kvm_arch_memory_slot {
382 struct s390_map_info {
383 struct list_head list;
389 struct s390_io_adapter {
395 struct rw_semaphore maps_lock;
396 struct list_head maps;
400 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
401 #define MAX_S390_ADAPTER_MAPS 256
404 struct sca_block *sca;
406 struct kvm_s390_float_interrupt float_int;
407 struct kvm_device *flic;
412 struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
413 wait_queue_head_t ipte_wq;
416 #define KVM_HVA_ERR_BAD (-1UL)
417 #define KVM_HVA_ERR_RO_BAD (-2UL)
419 static inline bool kvm_is_error_hva(unsigned long addr)
421 return IS_ERR_VALUE(addr);
424 #define ASYNC_PF_PER_VCPU 64
427 struct kvm_arch_async_pf {
428 unsigned long pfault_token;
431 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
433 void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
434 struct kvm_async_pf *work);
436 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
437 struct kvm_async_pf *work);
439 void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
440 struct kvm_async_pf *work);
442 extern int sie64a(struct kvm_s390_sie_block *, u64 *);
443 extern char sie_exit;