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
));
48 struct sca_entry cpu
[64];
49 } __attribute__((packed
));
51 #define CPUSTAT_STOPPED 0x80000000
52 #define CPUSTAT_WAIT 0x10000000
53 #define CPUSTAT_ECALL_PEND 0x08000000
54 #define CPUSTAT_STOP_INT 0x04000000
55 #define CPUSTAT_IO_INT 0x02000000
56 #define CPUSTAT_EXT_INT 0x01000000
57 #define CPUSTAT_RUNNING 0x00800000
58 #define CPUSTAT_RETAINED 0x00400000
59 #define CPUSTAT_TIMING_SUB 0x00020000
60 #define CPUSTAT_SIE_SUB 0x00010000
61 #define CPUSTAT_RRF 0x00008000
62 #define CPUSTAT_SLSV 0x00004000
63 #define CPUSTAT_SLSR 0x00002000
64 #define CPUSTAT_ZARCH 0x00000800
65 #define CPUSTAT_MCDS 0x00000100
66 #define CPUSTAT_SM 0x00000080
67 #define CPUSTAT_G 0x00000008
68 #define CPUSTAT_GED 0x00000004
69 #define CPUSTAT_J 0x00000002
70 #define CPUSTAT_P 0x00000001
72 struct kvm_s390_sie_block
{
73 atomic_t cpuflags
; /* 0x0000 */
74 __u32 prefix
; /* 0x0004 */
75 __u8 reserved08
[4]; /* 0x0008 */
76 #define PROG_IN_SIE (1<<0)
77 __u32 prog0c
; /* 0x000c */
78 __u8 reserved10
[16]; /* 0x0010 */
79 #define PROG_BLOCK_SIE 0x00000001
80 atomic_t prog20
; /* 0x0020 */
81 __u8 reserved24
[4]; /* 0x0024 */
82 __u64 cputm
; /* 0x0028 */
83 __u64 ckc
; /* 0x0030 */
84 __u64 epoch
; /* 0x0038 */
85 __u8 reserved40
[4]; /* 0x0040 */
86 #define LCTL_CR0 0x8000
87 #define LCTL_CR6 0x0200
88 #define LCTL_CR14 0x0002
89 __u16 lctl
; /* 0x0044 */
90 __s16 icpua
; /* 0x0046 */
91 #define ICTL_LPSW 0x00400000
92 __u32 ictl
; /* 0x0048 */
93 __u32 eca
; /* 0x004c */
94 __u8 icptcode
; /* 0x0050 */
95 __u8 reserved51
; /* 0x0051 */
96 __u16 ihcpu
; /* 0x0052 */
97 __u8 reserved54
[2]; /* 0x0054 */
98 __u16 ipa
; /* 0x0056 */
99 __u32 ipb
; /* 0x0058 */
100 __u32 scaoh
; /* 0x005c */
101 __u8 reserved60
; /* 0x0060 */
102 __u8 ecb
; /* 0x0061 */
103 __u8 ecb2
; /* 0x0062 */
104 __u8 reserved63
[1]; /* 0x0063 */
105 __u32 scaol
; /* 0x0064 */
106 __u8 reserved68
[4]; /* 0x0068 */
107 __u32 todpr
; /* 0x006c */
108 __u8 reserved70
[32]; /* 0x0070 */
109 psw_t gpsw
; /* 0x0090 */
110 __u64 gg14
; /* 0x00a0 */
111 __u64 gg15
; /* 0x00a8 */
112 __u8 reservedb0
[30]; /* 0x00b0 */
113 __u16 iprcc
; /* 0x00ce */
114 __u8 reservedd0
[48]; /* 0x00d0 */
115 __u64 gcr
[16]; /* 0x0100 */
116 __u64 gbea
; /* 0x0180 */
117 __u8 reserved188
[24]; /* 0x0188 */
118 __u32 fac
; /* 0x01a0 */
119 __u8 reserved1a4
[20]; /* 0x01a4 */
120 __u64 cbrlo
; /* 0x01b8 */
121 __u8 reserved1c0
[30]; /* 0x01c0 */
122 __u64 pp
; /* 0x01de */
123 __u8 reserved1e6
[2]; /* 0x01e6 */
124 __u64 itdba
; /* 0x01e8 */
125 __u8 reserved1f0
[16]; /* 0x01f0 */
126 } __attribute__((packed
));
128 struct kvm_s390_itdb
{
133 struct kvm_s390_sie_block sie_block
;
134 __u8 reserved200
[1024]; /* 0x0200 */
135 struct kvm_s390_itdb itdb
; /* 0x0600 */
136 __u8 reserved700
[2304]; /* 0x0700 */
139 struct kvm_vcpu_stat
{
142 u32 exit_external_request
;
143 u32 exit_external_interrupt
;
144 u32 exit_stop_request
;
146 u32 exit_instruction
;
147 u32 instruction_lctl
;
148 u32 instruction_lctlg
;
149 u32 exit_program_interruption
;
150 u32 exit_instr_and_program
;
151 u32 deliver_external_call
;
152 u32 deliver_emergency_signal
;
153 u32 deliver_service_signal
;
154 u32 deliver_virtio_interrupt
;
155 u32 deliver_stop_signal
;
156 u32 deliver_prefix_signal
;
157 u32 deliver_restart_signal
;
158 u32 deliver_program_int
;
161 u32 instruction_pfmf
;
162 u32 instruction_stidp
;
164 u32 instruction_stpx
;
165 u32 instruction_stap
;
166 u32 instruction_storage_key
;
167 u32 instruction_stsch
;
168 u32 instruction_chsc
;
169 u32 instruction_stsi
;
170 u32 instruction_stfl
;
171 u32 instruction_tprot
;
172 u32 instruction_essa
;
173 u32 instruction_sigp_sense
;
174 u32 instruction_sigp_sense_running
;
175 u32 instruction_sigp_external_call
;
176 u32 instruction_sigp_emergency
;
177 u32 instruction_sigp_stop
;
178 u32 instruction_sigp_arch
;
179 u32 instruction_sigp_prefix
;
180 u32 instruction_sigp_restart
;
186 #define PGM_OPERATION 0x01
187 #define PGM_PRIVILEGED_OP 0x02
188 #define PGM_EXECUTE 0x03
189 #define PGM_PROTECTION 0x04
190 #define PGM_ADDRESSING 0x05
191 #define PGM_SPECIFICATION 0x06
192 #define PGM_DATA 0x07
194 struct kvm_s390_interrupt_info
{
195 struct list_head list
;
198 struct kvm_s390_io_info io
;
199 struct kvm_s390_ext_info ext
;
200 struct kvm_s390_pgm_info pgm
;
201 struct kvm_s390_emerg_info emerg
;
202 struct kvm_s390_extcall_info extcall
;
203 struct kvm_s390_prefix_info prefix
;
204 struct kvm_s390_mchk_info mchk
;
208 /* for local_interrupt.action_flags */
209 #define ACTION_STORE_ON_STOP (1<<0)
210 #define ACTION_STOP_ON_STOP (1<<1)
212 struct kvm_s390_local_interrupt
{
214 struct list_head list
;
216 struct kvm_s390_float_interrupt
*float_int
;
217 int timer_due
; /* event indicator for waitqueue below */
218 wait_queue_head_t
*wq
;
220 unsigned int action_bits
;
223 struct kvm_s390_float_interrupt
{
225 struct list_head list
;
228 unsigned long idle_mask
[BITS_TO_LONGS(KVM_MAX_VCPUS
)];
229 unsigned int irq_count
;
233 struct kvm_vcpu_arch
{
234 struct kvm_s390_sie_block
*sie_block
;
235 s390_fp_regs host_fpregs
;
236 unsigned int host_acrs
[NUM_ACRS
];
237 s390_fp_regs guest_fpregs
;
238 struct kvm_s390_local_interrupt local_int
;
239 struct hrtimer ckc_timer
;
240 struct tasklet_struct tasklet
;
246 #define KVM_S390_PFAULT_TOKEN_INVALID (-1UL)
247 unsigned long pfault_token
;
248 unsigned long pfault_select
;
249 unsigned long pfault_compare
;
253 u32 remote_tlb_flush
;
256 struct kvm_arch_memory_slot
{
259 struct s390_map_info
{
260 struct list_head list
;
266 struct s390_io_adapter
{
272 struct rw_semaphore maps_lock
;
273 struct list_head maps
;
277 #define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
278 #define MAX_S390_ADAPTER_MAPS 256
281 struct sca_block
*sca
;
283 struct kvm_s390_float_interrupt float_int
;
284 struct kvm_device
*flic
;
288 struct s390_io_adapter
*adapters
[MAX_S390_IO_ADAPTERS
];
291 #define KVM_HVA_ERR_BAD (-1UL)
292 #define KVM_HVA_ERR_RO_BAD (-2UL)
294 static inline bool kvm_is_error_hva(unsigned long addr
)
296 return IS_ERR_VALUE(addr
);
299 #define ASYNC_PF_PER_VCPU 64
302 struct kvm_arch_async_pf
{
303 unsigned long pfault_token
;
306 bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu
*vcpu
);
308 void kvm_arch_async_page_ready(struct kvm_vcpu
*vcpu
,
309 struct kvm_async_pf
*work
);
311 void kvm_arch_async_page_not_present(struct kvm_vcpu
*vcpu
,
312 struct kvm_async_pf
*work
);
314 void kvm_arch_async_page_present(struct kvm_vcpu
*vcpu
,
315 struct kvm_async_pf
*work
);
317 extern int sie64a(struct kvm_s390_sie_block
*, u64
*);
318 extern char sie_exit
;