2 * asm-s390/kvm_host.h - definition for kernel virtual machines on s390
4 * Copyright IBM Corp. 2008
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/kvm_host.h>
17 #include <asm/debug.h>
19 #define KVM_MAX_VCPUS 64
20 #define KVM_MEMORY_SLOTS 32
21 /* memory slots that does not exposed to userspace */
22 #define KVM_PRIVATE_MEM_SLOTS 4
29 } __attribute__((packed));
37 struct sca_entry cpu[64];
38 } __attribute__((packed));
40 #define KVM_PAGES_PER_HPAGE 256
42 #define CPUSTAT_HOST 0x80000000
43 #define CPUSTAT_WAIT 0x10000000
44 #define CPUSTAT_ECALL_PEND 0x08000000
45 #define CPUSTAT_STOP_INT 0x04000000
46 #define CPUSTAT_IO_INT 0x02000000
47 #define CPUSTAT_EXT_INT 0x01000000
48 #define CPUSTAT_RUNNING 0x00800000
49 #define CPUSTAT_RETAINED 0x00400000
50 #define CPUSTAT_TIMING_SUB 0x00020000
51 #define CPUSTAT_SIE_SUB 0x00010000
52 #define CPUSTAT_RRF 0x00008000
53 #define CPUSTAT_SLSV 0x00004000
54 #define CPUSTAT_SLSR 0x00002000
55 #define CPUSTAT_ZARCH 0x00000800
56 #define CPUSTAT_MCDS 0x00000100
57 #define CPUSTAT_SM 0x00000080
58 #define CPUSTAT_G 0x00000008
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 reserved8[32]; /* 0x0008 */
66 __u64 cputm; /* 0x0028 */
67 __u64 ckc; /* 0x0030 */
68 __u64 epoch; /* 0x0038 */
69 __u8 reserved40[4]; /* 0x0040 */
70 #define LCTL_CR0 0x8000
71 __u16 lctl; /* 0x0044 */
72 __s16 icpua; /* 0x0046 */
73 __u32 ictl; /* 0x0048 */
74 __u32 eca; /* 0x004c */
75 __u8 icptcode; /* 0x0050 */
76 __u8 reserved51; /* 0x0051 */
77 __u16 ihcpu; /* 0x0052 */
78 __u8 reserved54[2]; /* 0x0054 */
79 __u16 ipa; /* 0x0056 */
80 __u32 ipb; /* 0x0058 */
81 __u32 scaoh; /* 0x005c */
82 __u8 reserved60; /* 0x0060 */
83 __u8 ecb; /* 0x0061 */
84 __u8 reserved62[2]; /* 0x0062 */
85 __u32 scaol; /* 0x0064 */
86 __u8 reserved68[4]; /* 0x0068 */
87 __u32 todpr; /* 0x006c */
88 __u8 reserved70[16]; /* 0x0070 */
89 __u64 gmsor; /* 0x0080 */
90 __u64 gmslm; /* 0x0088 */
91 psw_t gpsw; /* 0x0090 */
92 __u64 gg14; /* 0x00a0 */
93 __u64 gg15; /* 0x00a8 */
94 __u8 reservedb0[30]; /* 0x00b0 */
95 __u16 iprcc; /* 0x00ce */
96 __u8 reservedd0[48]; /* 0x00d0 */
97 __u64 gcr[16]; /* 0x0100 */
98 __u64 gbea; /* 0x0180 */
99 __u8 reserved188[120]; /* 0x0188 */
100 } __attribute__((packed));
102 struct kvm_vcpu_stat {
105 u32 exit_external_request;
106 u32 exit_external_interrupt;
107 u32 exit_stop_request;
109 u32 exit_instruction;
110 u32 instruction_lctl;
111 u32 instruction_lctlg;
112 u32 exit_program_interruption;
113 u32 exit_instr_and_program;
114 u32 deliver_emergency_signal;
115 u32 deliver_service_signal;
116 u32 deliver_virtio_interrupt;
117 u32 deliver_stop_signal;
118 u32 deliver_prefix_signal;
119 u32 deliver_restart_signal;
120 u32 deliver_program_int;
122 u32 instruction_stidp;
124 u32 instruction_stpx;
125 u32 instruction_stap;
126 u32 instruction_storage_key;
127 u32 instruction_stsch;
128 u32 instruction_chsc;
129 u32 instruction_stsi;
130 u32 instruction_stfl;
131 u32 instruction_sigp_sense;
132 u32 instruction_sigp_emergency;
133 u32 instruction_sigp_stop;
134 u32 instruction_sigp_arch;
135 u32 instruction_sigp_prefix;
136 u32 instruction_sigp_restart;
140 struct kvm_s390_io_info {
141 __u16 subchannel_id; /* 0x0b8 */
142 __u16 subchannel_nr; /* 0x0ba */
143 __u32 io_int_parm; /* 0x0bc */
144 __u32 io_int_word; /* 0x0c0 */
147 struct kvm_s390_ext_info {
152 #define PGM_OPERATION 0x01
153 #define PGM_PRIVILEGED_OPERATION 0x02
154 #define PGM_EXECUTE 0x03
155 #define PGM_PROTECTION 0x04
156 #define PGM_ADDRESSING 0x05
157 #define PGM_SPECIFICATION 0x06
158 #define PGM_DATA 0x07
160 struct kvm_s390_pgm_info {
164 struct kvm_s390_prefix_info {
168 struct kvm_s390_interrupt_info {
169 struct list_head list;
172 struct kvm_s390_io_info io;
173 struct kvm_s390_ext_info ext;
174 struct kvm_s390_pgm_info pgm;
175 struct kvm_s390_prefix_info prefix;
179 /* for local_interrupt.action_flags */
180 #define ACTION_STORE_ON_STOP 1
181 #define ACTION_STOP_ON_STOP 2
183 struct kvm_s390_local_interrupt {
185 struct list_head list;
187 struct kvm_s390_float_interrupt *float_int;
188 int timer_due; /* event indicator for waitqueue below */
189 wait_queue_head_t wq;
191 unsigned int action_bits;
194 struct kvm_s390_float_interrupt {
196 struct list_head list;
199 unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)];
200 struct kvm_s390_local_interrupt *local_int[64];
204 struct kvm_vcpu_arch {
205 struct kvm_s390_sie_block *sie_block;
206 unsigned long guest_gprs[16];
207 s390_fp_regs host_fpregs;
208 unsigned int host_acrs[NUM_ACRS];
209 s390_fp_regs guest_fpregs;
210 unsigned int guest_acrs[NUM_ACRS];
211 struct kvm_s390_local_interrupt local_int;
212 struct timer_list ckc_timer;
220 u32 remote_tlb_flush;
224 unsigned long guest_origin;
225 unsigned long guest_memsize;
226 struct sca_block *sca;
228 struct kvm_s390_float_interrupt float_int;
231 extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);