1 /* 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 24 struct sca_entry { 25 atomic_t scn; 26 __u64 reserved; 27 __u64 sda; 28 __u64 reserved2[2]; 29 } __attribute__((packed)); 30 31 32 struct 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 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)); 101 102 struct kvm_vcpu_stat { 103 u32 exit_userspace; 104 u32 exit_null; 105 u32 exit_external_request; 106 u32 exit_external_interrupt; 107 u32 exit_stop_request; 108 u32 exit_validity; 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; 121 u32 exit_wait_state; 122 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; 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; 137 u32 diagnose_44; 138 }; 139 140 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 */ 145 }; 146 147 struct kvm_s390_ext_info { 148 __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 159 160 struct kvm_s390_pgm_info { 161 __u16 code; 162 }; 163 164 struct kvm_s390_prefix_info { 165 __u32 address; 166 }; 167 168 struct kvm_s390_interrupt_info { 169 struct list_head list; 170 u64 type; 171 union { 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; 176 }; 177 }; 178 179 /* for local_interrupt.action_flags */ 180 #define ACTION_STORE_ON_STOP 1 181 #define ACTION_STOP_ON_STOP 2 182 183 struct kvm_s390_local_interrupt { 184 spinlock_t lock; 185 struct list_head list; 186 atomic_t active; 187 struct kvm_s390_float_interrupt *float_int; 188 int timer_due; /* event indicator for waitqueue below */ 189 wait_queue_head_t wq; 190 atomic_t *cpuflags; 191 unsigned int action_bits; 192 }; 193 194 struct kvm_s390_float_interrupt { 195 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)]; 200 struct kvm_s390_local_interrupt *local_int[64]; 201 }; 202 203 204 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; 213 union { 214 cpuid_t cpu_id; 215 u64 stidp_data; 216 }; 217 }; 218 219 struct kvm_vm_stat { 220 u32 remote_tlb_flush; 221 }; 222 223 struct kvm_arch{ 224 unsigned long guest_origin; 225 unsigned long guest_memsize; 226 struct sca_block *sca; 227 debug_info_t *dbf; 228 struct kvm_s390_float_interrupt float_int; 229 }; 230 231 extern int sie64a(struct kvm_s390_sie_block *, unsigned long *); 232 #endif 233