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b0c632db HC |
1 | /* |
2 | * asm-s390/kvm_host.h - definition for kernel virtual machines on s390 | |
3 | * | |
628eb9b8 | 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 | |
ca872302 CB |
16 | #include <linux/hrtimer.h> |
17 | #include <linux/interrupt.h> | |
b0c632db HC |
18 | #include <linux/kvm_host.h> |
19 | #include <asm/debug.h> | |
e86a6ed6 | 20 | #include <asm/cpu.h> |
b0c632db HC |
21 | |
22 | #define KVM_MAX_VCPUS 64 | |
23 | #define KVM_MEMORY_SLOTS 32 | |
24 | /* memory slots that does not exposed to userspace */ | |
25 | #define KVM_PRIVATE_MEM_SLOTS 4 | |
26 | ||
b0c632db HC |
27 | struct sca_entry { |
28 | atomic_t scn; | |
fc34531d | 29 | __u32 reserved; |
b0c632db HC |
30 | __u64 sda; |
31 | __u64 reserved2[2]; | |
32 | } __attribute__((packed)); | |
33 | ||
34 | ||
35 | struct sca_block { | |
36 | __u64 ipte_control; | |
37 | __u64 reserved[5]; | |
38 | __u64 mcn; | |
39 | __u64 reserved2; | |
40 | struct sca_entry cpu[64]; | |
41 | } __attribute__((packed)); | |
42 | ||
ec04b260 | 43 | #define KVM_NR_PAGE_SIZES 2 |
82855413 JR |
44 | #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8) |
45 | #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x)) | |
ec04b260 JR |
46 | #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) |
47 | #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) | |
48 | #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) | |
b0c632db | 49 | |
9e6dabef | 50 | #define CPUSTAT_STOPPED 0x80000000 |
b0c632db HC |
51 | #define CPUSTAT_WAIT 0x10000000 |
52 | #define CPUSTAT_ECALL_PEND 0x08000000 | |
53 | #define CPUSTAT_STOP_INT 0x04000000 | |
54 | #define CPUSTAT_IO_INT 0x02000000 | |
55 | #define CPUSTAT_EXT_INT 0x01000000 | |
56 | #define CPUSTAT_RUNNING 0x00800000 | |
57 | #define CPUSTAT_RETAINED 0x00400000 | |
58 | #define CPUSTAT_TIMING_SUB 0x00020000 | |
59 | #define CPUSTAT_SIE_SUB 0x00010000 | |
60 | #define CPUSTAT_RRF 0x00008000 | |
61 | #define CPUSTAT_SLSV 0x00004000 | |
62 | #define CPUSTAT_SLSR 0x00002000 | |
63 | #define CPUSTAT_ZARCH 0x00000800 | |
64 | #define CPUSTAT_MCDS 0x00000100 | |
65 | #define CPUSTAT_SM 0x00000080 | |
66 | #define CPUSTAT_G 0x00000008 | |
67 | #define CPUSTAT_J 0x00000002 | |
68 | #define CPUSTAT_P 0x00000001 | |
69 | ||
180c12fb | 70 | struct kvm_s390_sie_block { |
b0c632db HC |
71 | atomic_t cpuflags; /* 0x0000 */ |
72 | __u32 prefix; /* 0x0004 */ | |
73 | __u8 reserved8[32]; /* 0x0008 */ | |
74 | __u64 cputm; /* 0x0028 */ | |
75 | __u64 ckc; /* 0x0030 */ | |
76 | __u64 epoch; /* 0x0038 */ | |
77 | __u8 reserved40[4]; /* 0x0040 */ | |
ba5c1e9b | 78 | #define LCTL_CR0 0x8000 |
b0c632db HC |
79 | __u16 lctl; /* 0x0044 */ |
80 | __s16 icpua; /* 0x0046 */ | |
81 | __u32 ictl; /* 0x0048 */ | |
82 | __u32 eca; /* 0x004c */ | |
83 | __u8 icptcode; /* 0x0050 */ | |
84 | __u8 reserved51; /* 0x0051 */ | |
85 | __u16 ihcpu; /* 0x0052 */ | |
86 | __u8 reserved54[2]; /* 0x0054 */ | |
87 | __u16 ipa; /* 0x0056 */ | |
88 | __u32 ipb; /* 0x0058 */ | |
89 | __u32 scaoh; /* 0x005c */ | |
90 | __u8 reserved60; /* 0x0060 */ | |
91 | __u8 ecb; /* 0x0061 */ | |
92 | __u8 reserved62[2]; /* 0x0062 */ | |
93 | __u32 scaol; /* 0x0064 */ | |
94 | __u8 reserved68[4]; /* 0x0068 */ | |
95 | __u32 todpr; /* 0x006c */ | |
092670cd | 96 | __u8 reserved70[32]; /* 0x0070 */ |
b0c632db HC |
97 | psw_t gpsw; /* 0x0090 */ |
98 | __u64 gg14; /* 0x00a0 */ | |
99 | __u64 gg15; /* 0x00a8 */ | |
e28acfea CB |
100 | __u8 reservedb0[30]; /* 0x00b0 */ |
101 | __u16 iprcc; /* 0x00ce */ | |
102 | __u8 reservedd0[48]; /* 0x00d0 */ | |
b0c632db HC |
103 | __u64 gcr[16]; /* 0x0100 */ |
104 | __u64 gbea; /* 0x0180 */ | |
ef50f7ac CB |
105 | __u8 reserved188[24]; /* 0x0188 */ |
106 | __u32 fac; /* 0x01a0 */ | |
107 | __u8 reserved1a4[92]; /* 0x01a4 */ | |
b0c632db HC |
108 | } __attribute__((packed)); |
109 | ||
110 | struct kvm_vcpu_stat { | |
111 | u32 exit_userspace; | |
0eaeafa1 | 112 | u32 exit_null; |
8f2abe6a CB |
113 | u32 exit_external_request; |
114 | u32 exit_external_interrupt; | |
115 | u32 exit_stop_request; | |
116 | u32 exit_validity; | |
ba5c1e9b CO |
117 | u32 exit_instruction; |
118 | u32 instruction_lctl; | |
f5e10b09 | 119 | u32 instruction_lctlg; |
ba5c1e9b CO |
120 | u32 exit_program_interruption; |
121 | u32 exit_instr_and_program; | |
7697e71f | 122 | u32 deliver_external_call; |
ba5c1e9b CO |
123 | u32 deliver_emergency_signal; |
124 | u32 deliver_service_signal; | |
125 | u32 deliver_virtio_interrupt; | |
126 | u32 deliver_stop_signal; | |
127 | u32 deliver_prefix_signal; | |
128 | u32 deliver_restart_signal; | |
129 | u32 deliver_program_int; | |
130 | u32 exit_wait_state; | |
453423dc CB |
131 | u32 instruction_stidp; |
132 | u32 instruction_spx; | |
133 | u32 instruction_stpx; | |
134 | u32 instruction_stap; | |
135 | u32 instruction_storage_key; | |
136 | u32 instruction_stsch; | |
137 | u32 instruction_chsc; | |
138 | u32 instruction_stsi; | |
139 | u32 instruction_stfl; | |
bb25b9ba | 140 | u32 instruction_tprot; |
5288fbf0 | 141 | u32 instruction_sigp_sense; |
bd59d3a4 | 142 | u32 instruction_sigp_sense_running; |
7697e71f | 143 | u32 instruction_sigp_external_call; |
5288fbf0 CB |
144 | u32 instruction_sigp_emergency; |
145 | u32 instruction_sigp_stop; | |
146 | u32 instruction_sigp_arch; | |
147 | u32 instruction_sigp_prefix; | |
148 | u32 instruction_sigp_restart; | |
388186bc | 149 | u32 diagnose_10; |
e28acfea | 150 | u32 diagnose_44; |
41628d33 | 151 | u32 diagnose_9c; |
b0c632db HC |
152 | }; |
153 | ||
180c12fb | 154 | struct kvm_s390_io_info { |
ba5c1e9b CO |
155 | __u16 subchannel_id; /* 0x0b8 */ |
156 | __u16 subchannel_nr; /* 0x0ba */ | |
157 | __u32 io_int_parm; /* 0x0bc */ | |
158 | __u32 io_int_word; /* 0x0c0 */ | |
159 | }; | |
160 | ||
180c12fb | 161 | struct kvm_s390_ext_info { |
ba5c1e9b CO |
162 | __u32 ext_params; |
163 | __u64 ext_params2; | |
164 | }; | |
165 | ||
166 | #define PGM_OPERATION 0x01 | |
167 | #define PGM_PRIVILEGED_OPERATION 0x02 | |
168 | #define PGM_EXECUTE 0x03 | |
169 | #define PGM_PROTECTION 0x04 | |
170 | #define PGM_ADDRESSING 0x05 | |
171 | #define PGM_SPECIFICATION 0x06 | |
172 | #define PGM_DATA 0x07 | |
173 | ||
180c12fb | 174 | struct kvm_s390_pgm_info { |
ba5c1e9b CO |
175 | __u16 code; |
176 | }; | |
177 | ||
180c12fb | 178 | struct kvm_s390_prefix_info { |
ba5c1e9b CO |
179 | __u32 address; |
180 | }; | |
181 | ||
7697e71f CE |
182 | struct kvm_s390_extcall_info { |
183 | __u16 code; | |
184 | }; | |
185 | ||
8bb3a2eb CE |
186 | struct kvm_s390_emerg_info { |
187 | __u16 code; | |
188 | }; | |
189 | ||
180c12fb | 190 | struct kvm_s390_interrupt_info { |
ba5c1e9b CO |
191 | struct list_head list; |
192 | u64 type; | |
193 | union { | |
180c12fb CB |
194 | struct kvm_s390_io_info io; |
195 | struct kvm_s390_ext_info ext; | |
196 | struct kvm_s390_pgm_info pgm; | |
8bb3a2eb | 197 | struct kvm_s390_emerg_info emerg; |
7697e71f | 198 | struct kvm_s390_extcall_info extcall; |
180c12fb | 199 | struct kvm_s390_prefix_info prefix; |
ba5c1e9b CO |
200 | }; |
201 | }; | |
202 | ||
5288fbf0 | 203 | /* for local_interrupt.action_flags */ |
9ace903d CE |
204 | #define ACTION_STORE_ON_STOP (1<<0) |
205 | #define ACTION_STOP_ON_STOP (1<<1) | |
206 | #define ACTION_RELOADVCPU_ON_STOP (1<<2) | |
5288fbf0 | 207 | |
180c12fb | 208 | struct kvm_s390_local_interrupt { |
ba5c1e9b CO |
209 | spinlock_t lock; |
210 | struct list_head list; | |
211 | atomic_t active; | |
180c12fb | 212 | struct kvm_s390_float_interrupt *float_int; |
ba5c1e9b CO |
213 | int timer_due; /* event indicator for waitqueue below */ |
214 | wait_queue_head_t wq; | |
5288fbf0 CB |
215 | atomic_t *cpuflags; |
216 | unsigned int action_bits; | |
ba5c1e9b CO |
217 | }; |
218 | ||
180c12fb | 219 | struct kvm_s390_float_interrupt { |
ba5c1e9b CO |
220 | spinlock_t lock; |
221 | struct list_head list; | |
222 | atomic_t active; | |
223 | int next_rr_cpu; | |
3777594d CO |
224 | unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1) |
225 | / sizeof(long)]; | |
226 | struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS]; | |
ba5c1e9b CO |
227 | }; |
228 | ||
229 | ||
b0c632db | 230 | struct kvm_vcpu_arch { |
180c12fb | 231 | struct kvm_s390_sie_block *sie_block; |
b0c632db HC |
232 | s390_fp_regs host_fpregs; |
233 | unsigned int host_acrs[NUM_ACRS]; | |
234 | s390_fp_regs guest_fpregs; | |
180c12fb | 235 | struct kvm_s390_local_interrupt local_int; |
ca872302 CB |
236 | struct hrtimer ckc_timer; |
237 | struct tasklet_struct tasklet; | |
453423dc | 238 | union { |
e86a6ed6 HC |
239 | struct cpuid cpu_id; |
240 | u64 stidp_data; | |
453423dc | 241 | }; |
598841ca | 242 | struct gmap *gmap; |
b0c632db HC |
243 | }; |
244 | ||
245 | struct kvm_vm_stat { | |
246 | u32 remote_tlb_flush; | |
247 | }; | |
248 | ||
db3fe4eb TY |
249 | struct kvm_arch_memory_slot { |
250 | }; | |
251 | ||
b0c632db | 252 | struct kvm_arch{ |
b0c632db HC |
253 | struct sca_block *sca; |
254 | debug_info_t *dbf; | |
180c12fb | 255 | struct kvm_s390_float_interrupt float_int; |
598841ca | 256 | struct gmap *gmap; |
b0c632db HC |
257 | }; |
258 | ||
5a32c1af | 259 | extern int sie64a(struct kvm_s390_sie_block *, u64 *); |
b0c632db | 260 | #endif |