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Heiko Carstensb0c632d2008-03-25 18:47:20 +01001/*
2 * asm-s390/kvm_host.h - definition for kernel virtual machines on s390
3 *
4 * Copyright IBM Corp. 2008
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
16#include <linux/kvm_host.h>
17#include <asm/debug.h>
18
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
23
Heiko Carstensb0c632d2008-03-25 18:47:20 +010024struct sca_entry {
25 atomic_t scn;
26 __u64 reserved;
27 __u64 sda;
28 __u64 reserved2[2];
29} __attribute__((packed));
30
31
32struct sca_block {
33 __u64 ipte_control;
34 __u64 reserved[5];
35 __u64 mcn;
36 __u64 reserved2;
37 struct sca_entry cpu[64];
38} __attribute__((packed));
39
40#define KVM_PAGES_PER_HPAGE 256
41
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
61
Christian Borntraeger180c12f2008-06-27 15:05:40 +020062struct kvm_s390_sie_block {
Heiko Carstensb0c632d2008-03-25 18:47:20 +010063 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 */
Carsten Otteba5c1e92008-03-25 18:47:26 +010070#define LCTL_CR0 0x8000
Heiko Carstensb0c632d2008-03-25 18:47:20 +010071 __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 */
Christian Borntraegere28acfe2008-03-25 18:47:34 +010094 __u8 reservedb0[30]; /* 0x00b0 */
95 __u16 iprcc; /* 0x00ce */
96 __u8 reservedd0[48]; /* 0x00d0 */
Heiko Carstensb0c632d2008-03-25 18:47:20 +010097 __u64 gcr[16]; /* 0x0100 */
98 __u64 gbea; /* 0x0180 */
99 __u8 reserved188[120]; /* 0x0188 */
100} __attribute__((packed));
101
102struct kvm_vcpu_stat {
103 u32 exit_userspace;
Christian Borntraeger0eaeafa2008-05-07 09:22:53 +0200104 u32 exit_null;
Christian Borntraeger8f2abe62008-03-25 18:47:23 +0100105 u32 exit_external_request;
106 u32 exit_external_interrupt;
107 u32 exit_stop_request;
108 u32 exit_validity;
Carsten Otteba5c1e92008-03-25 18:47:26 +0100109 u32 exit_instruction;
110 u32 instruction_lctl;
Christian Borntraegerf5e10b02008-07-25 15:52:44 +0200111 u32 instruction_lctlg;
Carsten Otteba5c1e92008-03-25 18:47:26 +0100112 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;
121 u32 exit_wait_state;
Christian Borntraeger453423d2008-03-25 18:47:29 +0100122 u32 instruction_stidp;
123 u32 instruction_spx;
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;
Christian Borntraeger5288fbf2008-03-25 18:47:31 +0100131 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;
Christian Borntraegere28acfe2008-03-25 18:47:34 +0100137 u32 diagnose_44;
Heiko Carstensb0c632d2008-03-25 18:47:20 +0100138};
139
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200140struct kvm_s390_io_info {
Carsten Otteba5c1e92008-03-25 18:47:26 +0100141 __u16 subchannel_id; /* 0x0b8 */
142 __u16 subchannel_nr; /* 0x0ba */
143 __u32 io_int_parm; /* 0x0bc */
144 __u32 io_int_word; /* 0x0c0 */
145};
146
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200147struct kvm_s390_ext_info {
Carsten Otteba5c1e92008-03-25 18:47:26 +0100148 __u32 ext_params;
149 __u64 ext_params2;
150};
151
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
159
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200160struct kvm_s390_pgm_info {
Carsten Otteba5c1e92008-03-25 18:47:26 +0100161 __u16 code;
162};
163
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200164struct kvm_s390_prefix_info {
Carsten Otteba5c1e92008-03-25 18:47:26 +0100165 __u32 address;
166};
167
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200168struct kvm_s390_interrupt_info {
Carsten Otteba5c1e92008-03-25 18:47:26 +0100169 struct list_head list;
170 u64 type;
171 union {
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200172 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;
Carsten Otteba5c1e92008-03-25 18:47:26 +0100176 };
177};
178
Christian Borntraeger5288fbf2008-03-25 18:47:31 +0100179/* for local_interrupt.action_flags */
180#define ACTION_STORE_ON_STOP 1
181#define ACTION_STOP_ON_STOP 2
182
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200183struct kvm_s390_local_interrupt {
Carsten Otteba5c1e92008-03-25 18:47:26 +0100184 spinlock_t lock;
185 struct list_head list;
186 atomic_t active;
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200187 struct kvm_s390_float_interrupt *float_int;
Carsten Otteba5c1e92008-03-25 18:47:26 +0100188 int timer_due; /* event indicator for waitqueue below */
189 wait_queue_head_t wq;
Christian Borntraeger5288fbf2008-03-25 18:47:31 +0100190 atomic_t *cpuflags;
191 unsigned int action_bits;
Carsten Otteba5c1e92008-03-25 18:47:26 +0100192};
193
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200194struct kvm_s390_float_interrupt {
Carsten Otteba5c1e92008-03-25 18:47:26 +0100195 spinlock_t lock;
196 struct list_head list;
197 atomic_t active;
198 int next_rr_cpu;
199 unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)];
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200200 struct kvm_s390_local_interrupt *local_int[64];
Carsten Otteba5c1e92008-03-25 18:47:26 +0100201};
202
203
Heiko Carstensb0c632d2008-03-25 18:47:20 +0100204struct kvm_vcpu_arch {
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200205 struct kvm_s390_sie_block *sie_block;
Heiko Carstensb0c632d2008-03-25 18:47:20 +0100206 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];
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200211 struct kvm_s390_local_interrupt local_int;
Carsten Otteba5c1e92008-03-25 18:47:26 +0100212 struct timer_list ckc_timer;
Christian Borntraeger453423d2008-03-25 18:47:29 +0100213 union {
214 cpuid_t cpu_id;
215 u64 stidp_data;
216 };
Heiko Carstensb0c632d2008-03-25 18:47:20 +0100217};
218
219struct kvm_vm_stat {
220 u32 remote_tlb_flush;
221};
222
223struct kvm_arch{
224 unsigned long guest_origin;
225 unsigned long guest_memsize;
226 struct sca_block *sca;
227 debug_info_t *dbf;
Christian Borntraeger180c12f2008-06-27 15:05:40 +0200228 struct kvm_s390_float_interrupt float_int;
Heiko Carstensb0c632d2008-03-25 18:47:20 +0100229};
230
Martin Schwidefsky00963692008-07-25 15:51:00 +0200231extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);
Heiko Carstensb0c632d2008-03-25 18:47:20 +0100232#endif