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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 JR |
43 | #define KVM_NR_PAGE_SIZES 2 |
44 | #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + ((x) - 1) * 8) | |
45 | #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) | |
46 | #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) | |
47 | #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) | |
b0c632db HC |
48 | |
49 | #define CPUSTAT_HOST 0x80000000 | |
50 | #define CPUSTAT_WAIT 0x10000000 | |
51 | #define CPUSTAT_ECALL_PEND 0x08000000 | |
52 | #define CPUSTAT_STOP_INT 0x04000000 | |
53 | #define CPUSTAT_IO_INT 0x02000000 | |
54 | #define CPUSTAT_EXT_INT 0x01000000 | |
55 | #define CPUSTAT_RUNNING 0x00800000 | |
56 | #define CPUSTAT_RETAINED 0x00400000 | |
57 | #define CPUSTAT_TIMING_SUB 0x00020000 | |
58 | #define CPUSTAT_SIE_SUB 0x00010000 | |
59 | #define CPUSTAT_RRF 0x00008000 | |
60 | #define CPUSTAT_SLSV 0x00004000 | |
61 | #define CPUSTAT_SLSR 0x00002000 | |
62 | #define CPUSTAT_ZARCH 0x00000800 | |
63 | #define CPUSTAT_MCDS 0x00000100 | |
64 | #define CPUSTAT_SM 0x00000080 | |
65 | #define CPUSTAT_G 0x00000008 | |
66 | #define CPUSTAT_J 0x00000002 | |
67 | #define CPUSTAT_P 0x00000001 | |
68 | ||
180c12fb | 69 | struct kvm_s390_sie_block { |
b0c632db HC |
70 | atomic_t cpuflags; /* 0x0000 */ |
71 | __u32 prefix; /* 0x0004 */ | |
72 | __u8 reserved8[32]; /* 0x0008 */ | |
73 | __u64 cputm; /* 0x0028 */ | |
74 | __u64 ckc; /* 0x0030 */ | |
75 | __u64 epoch; /* 0x0038 */ | |
76 | __u8 reserved40[4]; /* 0x0040 */ | |
ba5c1e9b | 77 | #define LCTL_CR0 0x8000 |
b0c632db HC |
78 | __u16 lctl; /* 0x0044 */ |
79 | __s16 icpua; /* 0x0046 */ | |
80 | __u32 ictl; /* 0x0048 */ | |
81 | __u32 eca; /* 0x004c */ | |
82 | __u8 icptcode; /* 0x0050 */ | |
83 | __u8 reserved51; /* 0x0051 */ | |
84 | __u16 ihcpu; /* 0x0052 */ | |
85 | __u8 reserved54[2]; /* 0x0054 */ | |
86 | __u16 ipa; /* 0x0056 */ | |
87 | __u32 ipb; /* 0x0058 */ | |
88 | __u32 scaoh; /* 0x005c */ | |
89 | __u8 reserved60; /* 0x0060 */ | |
90 | __u8 ecb; /* 0x0061 */ | |
91 | __u8 reserved62[2]; /* 0x0062 */ | |
92 | __u32 scaol; /* 0x0064 */ | |
93 | __u8 reserved68[4]; /* 0x0068 */ | |
94 | __u32 todpr; /* 0x006c */ | |
95 | __u8 reserved70[16]; /* 0x0070 */ | |
96 | __u64 gmsor; /* 0x0080 */ | |
97 | __u64 gmslm; /* 0x0088 */ | |
98 | psw_t gpsw; /* 0x0090 */ | |
99 | __u64 gg14; /* 0x00a0 */ | |
100 | __u64 gg15; /* 0x00a8 */ | |
e28acfea CB |
101 | __u8 reservedb0[30]; /* 0x00b0 */ |
102 | __u16 iprcc; /* 0x00ce */ | |
103 | __u8 reservedd0[48]; /* 0x00d0 */ | |
b0c632db HC |
104 | __u64 gcr[16]; /* 0x0100 */ |
105 | __u64 gbea; /* 0x0180 */ | |
ef50f7ac CB |
106 | __u8 reserved188[24]; /* 0x0188 */ |
107 | __u32 fac; /* 0x01a0 */ | |
108 | __u8 reserved1a4[92]; /* 0x01a4 */ | |
b0c632db HC |
109 | } __attribute__((packed)); |
110 | ||
111 | struct kvm_vcpu_stat { | |
112 | u32 exit_userspace; | |
0eaeafa1 | 113 | u32 exit_null; |
8f2abe6a CB |
114 | u32 exit_external_request; |
115 | u32 exit_external_interrupt; | |
116 | u32 exit_stop_request; | |
117 | u32 exit_validity; | |
ba5c1e9b CO |
118 | u32 exit_instruction; |
119 | u32 instruction_lctl; | |
f5e10b09 | 120 | u32 instruction_lctlg; |
ba5c1e9b CO |
121 | u32 exit_program_interruption; |
122 | u32 exit_instr_and_program; | |
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; | |
5288fbf0 CB |
140 | u32 instruction_sigp_sense; |
141 | u32 instruction_sigp_emergency; | |
142 | u32 instruction_sigp_stop; | |
143 | u32 instruction_sigp_arch; | |
144 | u32 instruction_sigp_prefix; | |
145 | u32 instruction_sigp_restart; | |
e28acfea | 146 | u32 diagnose_44; |
b0c632db HC |
147 | }; |
148 | ||
180c12fb | 149 | struct kvm_s390_io_info { |
ba5c1e9b CO |
150 | __u16 subchannel_id; /* 0x0b8 */ |
151 | __u16 subchannel_nr; /* 0x0ba */ | |
152 | __u32 io_int_parm; /* 0x0bc */ | |
153 | __u32 io_int_word; /* 0x0c0 */ | |
154 | }; | |
155 | ||
180c12fb | 156 | struct kvm_s390_ext_info { |
ba5c1e9b CO |
157 | __u32 ext_params; |
158 | __u64 ext_params2; | |
159 | }; | |
160 | ||
161 | #define PGM_OPERATION 0x01 | |
162 | #define PGM_PRIVILEGED_OPERATION 0x02 | |
163 | #define PGM_EXECUTE 0x03 | |
164 | #define PGM_PROTECTION 0x04 | |
165 | #define PGM_ADDRESSING 0x05 | |
166 | #define PGM_SPECIFICATION 0x06 | |
167 | #define PGM_DATA 0x07 | |
168 | ||
180c12fb | 169 | struct kvm_s390_pgm_info { |
ba5c1e9b CO |
170 | __u16 code; |
171 | }; | |
172 | ||
180c12fb | 173 | struct kvm_s390_prefix_info { |
ba5c1e9b CO |
174 | __u32 address; |
175 | }; | |
176 | ||
180c12fb | 177 | struct kvm_s390_interrupt_info { |
ba5c1e9b CO |
178 | struct list_head list; |
179 | u64 type; | |
180 | union { | |
180c12fb CB |
181 | struct kvm_s390_io_info io; |
182 | struct kvm_s390_ext_info ext; | |
183 | struct kvm_s390_pgm_info pgm; | |
184 | struct kvm_s390_prefix_info prefix; | |
ba5c1e9b CO |
185 | }; |
186 | }; | |
187 | ||
5288fbf0 | 188 | /* for local_interrupt.action_flags */ |
9ace903d CE |
189 | #define ACTION_STORE_ON_STOP (1<<0) |
190 | #define ACTION_STOP_ON_STOP (1<<1) | |
191 | #define ACTION_RELOADVCPU_ON_STOP (1<<2) | |
5288fbf0 | 192 | |
180c12fb | 193 | struct kvm_s390_local_interrupt { |
ba5c1e9b CO |
194 | spinlock_t lock; |
195 | struct list_head list; | |
196 | atomic_t active; | |
180c12fb | 197 | struct kvm_s390_float_interrupt *float_int; |
ba5c1e9b CO |
198 | int timer_due; /* event indicator for waitqueue below */ |
199 | wait_queue_head_t wq; | |
5288fbf0 CB |
200 | atomic_t *cpuflags; |
201 | unsigned int action_bits; | |
ba5c1e9b CO |
202 | }; |
203 | ||
180c12fb | 204 | struct kvm_s390_float_interrupt { |
ba5c1e9b CO |
205 | spinlock_t lock; |
206 | struct list_head list; | |
207 | atomic_t active; | |
208 | int next_rr_cpu; | |
209 | unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)]; | |
180c12fb | 210 | struct kvm_s390_local_interrupt *local_int[64]; |
ba5c1e9b CO |
211 | }; |
212 | ||
213 | ||
b0c632db | 214 | struct kvm_vcpu_arch { |
180c12fb | 215 | struct kvm_s390_sie_block *sie_block; |
b0c632db HC |
216 | unsigned long guest_gprs[16]; |
217 | s390_fp_regs host_fpregs; | |
218 | unsigned int host_acrs[NUM_ACRS]; | |
219 | s390_fp_regs guest_fpregs; | |
220 | unsigned int guest_acrs[NUM_ACRS]; | |
180c12fb | 221 | struct kvm_s390_local_interrupt local_int; |
ca872302 CB |
222 | struct hrtimer ckc_timer; |
223 | struct tasklet_struct tasklet; | |
453423dc | 224 | union { |
e86a6ed6 HC |
225 | struct cpuid cpu_id; |
226 | u64 stidp_data; | |
453423dc | 227 | }; |
b0c632db HC |
228 | }; |
229 | ||
230 | struct kvm_vm_stat { | |
231 | u32 remote_tlb_flush; | |
232 | }; | |
233 | ||
234 | struct kvm_arch{ | |
b0c632db HC |
235 | struct sca_block *sca; |
236 | debug_info_t *dbf; | |
180c12fb | 237 | struct kvm_s390_float_interrupt float_int; |
b0c632db HC |
238 | }; |
239 | ||
0096369d | 240 | extern int sie64a(struct kvm_s390_sie_block *, unsigned long *); |
b0c632db | 241 | #endif |