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 <asm/debug.h>
22 #define KVM_MAX_VCPUS 64
23 #define KVM_USER_MEM_SLOTS 32
30 } __attribute__((packed));
38 struct sca_entry cpu[64];
39 } __attribute__((packed));
41 #define CPUSTAT_STOPPED 0x80000000
42 #define CPUSTAT_WAIT 0x10000000
43 #define CPUSTAT_ECALL_PEND 0x08000000
44 #define CPUSTAT_STOP_INT 0x04000000
45 #define CPUSTAT_IO_INT 0x02000000
46 #define CPUSTAT_EXT_INT 0x01000000
47 #define CPUSTAT_RUNNING 0x00800000
48 #define CPUSTAT_RETAINED 0x00400000
49 #define CPUSTAT_TIMING_SUB 0x00020000
50 #define CPUSTAT_SIE_SUB 0x00010000
51 #define CPUSTAT_RRF 0x00008000
52 #define CPUSTAT_SLSV 0x00004000
53 #define CPUSTAT_SLSR 0x00002000
54 #define CPUSTAT_ZARCH 0x00000800
55 #define CPUSTAT_MCDS 0x00000100
56 #define CPUSTAT_SM 0x00000080
57 #define CPUSTAT_G 0x00000008
58 #define CPUSTAT_GED 0x00000004
59 #define CPUSTAT_J 0x00000002
60 #define CPUSTAT_P 0x00000001
62 struct kvm_s390_sie_block {
63 atomic_t cpuflags; /* 0x0000 */
64 __u32 prefix; /* 0x0004 */
65 __u8 reserved08[4]; /* 0x0008 */
66 #define PROG_IN_SIE (1<<0)
67 __u32 prog0c; /* 0x000c */
68 __u8 reserved10[16]; /* 0x0010 */
69 #define PROG_BLOCK_SIE 0x00000001
70 atomic_t prog20; /* 0x0020 */
71 __u8 reserved24[4]; /* 0x0024 */
72 __u64 cputm; /* 0x0028 */
73 __u64 ckc; /* 0x0030 */
74 __u64 epoch; /* 0x0038 */
75 __u8 reserved40[4]; /* 0x0040 */
76 #define LCTL_CR0 0x8000
77 #define LCTL_CR6 0x0200
78 #define LCTL_CR14 0x0002
79 __u16 lctl; /* 0x0044 */
80 __s16 icpua; /* 0x0046 */
81 #define ICTL_LPSW 0x00400000
82 __u32 ictl; /* 0x0048 */
83 __u32 eca; /* 0x004c */
84 __u8 icptcode; /* 0x0050 */
85 __u8 reserved51; /* 0x0051 */
86 __u16 ihcpu; /* 0x0052 */
87 __u8 reserved54[2]; /* 0x0054 */
88 __u16 ipa; /* 0x0056 */
89 __u32 ipb; /* 0x0058 */
90 __u32 scaoh; /* 0x005c */
91 __u8 reserved60; /* 0x0060 */
92 __u8 ecb; /* 0x0061 */
93 __u8 ecb2; /* 0x0062 */
94 __u8 reserved63[1]; /* 0x0063 */
95 __u32 scaol; /* 0x0064 */
96 __u8 reserved68[4]; /* 0x0068 */
97 __u32 todpr; /* 0x006c */
98 __u8 reserved70[32]; /* 0x0070 */
99 psw_t gpsw; /* 0x0090 */
100 __u64 gg14; /* 0x00a0 */
101 __u64 gg15; /* 0x00a8 */
102 __u8 reservedb0[30]; /* 0x00b0 */
103 __u16 iprcc; /* 0x00ce */
104 __u8 reservedd0[48]; /* 0x00d0 */
105 __u64 gcr[16]; /* 0x0100 */
106 __u64 gbea; /* 0x0180 */
107 __u8 reserved188[24]; /* 0x0188 */
108 __u32 fac; /* 0x01a0 */
109 __u8 reserved1a4[92]; /* 0x01a4 */
110 } __attribute__((packed));
112 struct kvm_vcpu_stat {
115 u32 exit_external_request;
116 u32 exit_external_interrupt;
117 u32 exit_stop_request;
119 u32 exit_instruction;
120 u32 instruction_lctl;
121 u32 instruction_lctlg;
122 u32 exit_program_interruption;
123 u32 exit_instr_and_program;
124 u32 deliver_external_call;
125 u32 deliver_emergency_signal;
126 u32 deliver_service_signal;
127 u32 deliver_virtio_interrupt;
128 u32 deliver_stop_signal;
129 u32 deliver_prefix_signal;
130 u32 deliver_restart_signal;
131 u32 deliver_program_int;
134 u32 instruction_pfmf;
135 u32 instruction_stidp;
137 u32 instruction_stpx;
138 u32 instruction_stap;
139 u32 instruction_storage_key;
140 u32 instruction_stsch;
141 u32 instruction_chsc;
142 u32 instruction_stsi;
143 u32 instruction_stfl;
144 u32 instruction_tprot;
145 u32 instruction_sigp_sense;
146 u32 instruction_sigp_sense_running;
147 u32 instruction_sigp_external_call;
148 u32 instruction_sigp_emergency;
149 u32 instruction_sigp_stop;
150 u32 instruction_sigp_arch;
151 u32 instruction_sigp_prefix;
152 u32 instruction_sigp_restart;
158 struct kvm_s390_io_info {
159 __u16 subchannel_id; /* 0x0b8 */
160 __u16 subchannel_nr; /* 0x0ba */
161 __u32 io_int_parm; /* 0x0bc */
162 __u32 io_int_word; /* 0x0c0 */
165 struct kvm_s390_ext_info {
170 #define PGM_OPERATION 0x01
171 #define PGM_PRIVILEGED_OP 0x02
172 #define PGM_EXECUTE 0x03
173 #define PGM_PROTECTION 0x04
174 #define PGM_ADDRESSING 0x05
175 #define PGM_SPECIFICATION 0x06
176 #define PGM_DATA 0x07
178 struct kvm_s390_pgm_info {
182 struct kvm_s390_prefix_info {
186 struct kvm_s390_extcall_info {
190 struct kvm_s390_emerg_info {
194 struct kvm_s390_mchk_info {
199 struct kvm_s390_interrupt_info {
200 struct list_head list;
203 struct kvm_s390_io_info io;
204 struct kvm_s390_ext_info ext;
205 struct kvm_s390_pgm_info pgm;
206 struct kvm_s390_emerg_info emerg;
207 struct kvm_s390_extcall_info extcall;
208 struct kvm_s390_prefix_info prefix;
209 struct kvm_s390_mchk_info mchk;
213 /* for local_interrupt.action_flags */
214 #define ACTION_STORE_ON_STOP (1<<0)
215 #define ACTION_STOP_ON_STOP (1<<1)
217 struct kvm_s390_local_interrupt {
219 struct list_head list;
221 struct kvm_s390_float_interrupt *float_int;
222 int timer_due; /* event indicator for waitqueue below */
223 wait_queue_head_t *wq;
225 unsigned int action_bits;
228 struct kvm_s390_float_interrupt {
230 struct list_head list;
233 unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1)
235 struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS];
239 struct kvm_vcpu_arch {
240 struct kvm_s390_sie_block *sie_block;
241 s390_fp_regs host_fpregs;
242 unsigned int host_acrs[NUM_ACRS];
243 s390_fp_regs guest_fpregs;
244 struct kvm_s390_local_interrupt local_int;
245 struct hrtimer ckc_timer;
246 struct tasklet_struct tasklet;
255 u32 remote_tlb_flush;
258 struct kvm_arch_memory_slot {
262 struct sca_block *sca;
264 struct kvm_s390_float_interrupt float_int;
269 #define KVM_HVA_ERR_BAD (-1UL)
270 #define KVM_HVA_ERR_RO_BAD (-2UL)
272 static inline bool kvm_is_error_hva(unsigned long addr)
274 return IS_ERR_VALUE(addr);
277 extern int sie64a(struct kvm_s390_sie_block *, u64 *);
278 extern char sie_exit;