1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef __LINUX_KVM_S390_H 3 #define __LINUX_KVM_S390_H 4 /* 5 * KVM s390 specific structures and definitions 6 * 7 * Copyright IBM Corp. 2008, 2018 8 * 9 * Author(s): Carsten Otte <cotte@de.ibm.com> 10 * Christian Borntraeger <borntraeger@de.ibm.com> 11 */ 12 #include <linux/types.h> 13 14 #define __KVM_S390 15 #define __KVM_HAVE_GUEST_DEBUG 16 17 /* Device control API: s390-specific devices */ 18 #define KVM_DEV_FLIC_GET_ALL_IRQS 1 19 #define KVM_DEV_FLIC_ENQUEUE 2 20 #define KVM_DEV_FLIC_CLEAR_IRQS 3 21 #define KVM_DEV_FLIC_APF_ENABLE 4 22 #define KVM_DEV_FLIC_APF_DISABLE_WAIT 5 23 #define KVM_DEV_FLIC_ADAPTER_REGISTER 6 24 #define KVM_DEV_FLIC_ADAPTER_MODIFY 7 25 #define KVM_DEV_FLIC_CLEAR_IO_IRQ 8 26 #define KVM_DEV_FLIC_AISM 9 27 #define KVM_DEV_FLIC_AIRQ_INJECT 10 28 #define KVM_DEV_FLIC_AISM_ALL 11 29 /* 30 * We can have up to 4*64k pending subchannels + 8 adapter interrupts, 31 * as well as up to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts. 32 * There are also sclp and machine checks. This gives us 33 * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000 34 * Lets round up to 8192 pages. 35 */ 36 #define KVM_S390_MAX_FLOAT_IRQS 266250 37 #define KVM_S390_FLIC_MAX_BUFFER 0x2000000 38 39 struct kvm_s390_io_adapter { 40 __u32 id; 41 __u8 isc; 42 __u8 maskable; 43 __u8 swap; 44 __u8 flags; 45 }; 46 47 #define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01 48 49 struct kvm_s390_ais_req { 50 __u8 isc; 51 __u16 mode; 52 }; 53 54 struct kvm_s390_ais_all { 55 __u8 simm; 56 __u8 nimm; 57 }; 58 59 #define KVM_S390_IO_ADAPTER_MASK 1 60 #define KVM_S390_IO_ADAPTER_MAP 2 61 #define KVM_S390_IO_ADAPTER_UNMAP 3 62 63 struct kvm_s390_io_adapter_req { 64 __u32 id; 65 __u8 type; 66 __u8 mask; 67 __u16 pad0; 68 __u64 addr; 69 }; 70 71 /* kvm attr_group on vm fd */ 72 #define KVM_S390_VM_MEM_CTRL 0 73 #define KVM_S390_VM_TOD 1 74 #define KVM_S390_VM_CRYPTO 2 75 #define KVM_S390_VM_CPU_MODEL 3 76 #define KVM_S390_VM_MIGRATION 4 77 #define KVM_S390_VM_CPU_TOPOLOGY 5 78 79 /* kvm attributes for mem_ctrl */ 80 #define KVM_S390_VM_MEM_ENABLE_CMMA 0 81 #define KVM_S390_VM_MEM_CLR_CMMA 1 82 #define KVM_S390_VM_MEM_LIMIT_SIZE 2 83 84 #define KVM_S390_NO_MEM_LIMIT U64_MAX 85 86 /* kvm attributes for KVM_S390_VM_TOD */ 87 #define KVM_S390_VM_TOD_LOW 0 88 #define KVM_S390_VM_TOD_HIGH 1 89 #define KVM_S390_VM_TOD_EXT 2 90 91 struct kvm_s390_vm_tod_clock { 92 __u8 epoch_idx; 93 __u64 tod; 94 }; 95 96 /* kvm attributes for KVM_S390_VM_CPU_MODEL */ 97 /* processor related attributes are r/w */ 98 #define KVM_S390_VM_CPU_PROCESSOR 0 99 struct kvm_s390_vm_cpu_processor { 100 __u64 cpuid; 101 __u16 ibc; 102 __u8 pad[6]; 103 __u64 fac_list[256]; 104 }; 105 106 /* machine related attributes are r/o */ 107 #define KVM_S390_VM_CPU_MACHINE 1 108 struct kvm_s390_vm_cpu_machine { 109 __u64 cpuid; 110 __u32 ibc; 111 __u8 pad[4]; 112 __u64 fac_mask[256]; 113 __u64 fac_list[256]; 114 }; 115 116 #define KVM_S390_VM_CPU_PROCESSOR_FEAT 2 117 #define KVM_S390_VM_CPU_MACHINE_FEAT 3 118 119 #define KVM_S390_VM_CPU_FEAT_NR_BITS 1024 120 #define KVM_S390_VM_CPU_FEAT_ESOP 0 121 #define KVM_S390_VM_CPU_FEAT_SIEF2 1 122 #define KVM_S390_VM_CPU_FEAT_64BSCAO 2 123 #define KVM_S390_VM_CPU_FEAT_SIIF 3 124 #define KVM_S390_VM_CPU_FEAT_GPERE 4 125 #define KVM_S390_VM_CPU_FEAT_GSLS 5 126 #define KVM_S390_VM_CPU_FEAT_IB 6 127 #define KVM_S390_VM_CPU_FEAT_CEI 7 128 #define KVM_S390_VM_CPU_FEAT_IBS 8 129 #define KVM_S390_VM_CPU_FEAT_SKEY 9 130 #define KVM_S390_VM_CPU_FEAT_CMMA 10 131 #define KVM_S390_VM_CPU_FEAT_PFMFI 11 132 #define KVM_S390_VM_CPU_FEAT_SIGPIF 12 133 #define KVM_S390_VM_CPU_FEAT_KSS 13 134 struct kvm_s390_vm_cpu_feat { 135 __u64 feat[16]; 136 }; 137 138 #define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC 4 139 #define KVM_S390_VM_CPU_MACHINE_SUBFUNC 5 140 /* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */ 141 struct kvm_s390_vm_cpu_subfunc { 142 __u8 plo[32]; /* always */ 143 __u8 ptff[16]; /* with TOD-clock steering */ 144 __u8 kmac[16]; /* with MSA */ 145 __u8 kmc[16]; /* with MSA */ 146 __u8 km[16]; /* with MSA */ 147 __u8 kimd[16]; /* with MSA */ 148 __u8 klmd[16]; /* with MSA */ 149 __u8 pckmo[16]; /* with MSA3 */ 150 __u8 kmctr[16]; /* with MSA4 */ 151 __u8 kmf[16]; /* with MSA4 */ 152 __u8 kmo[16]; /* with MSA4 */ 153 __u8 pcc[16]; /* with MSA4 */ 154 __u8 ppno[16]; /* with MSA5 */ 155 __u8 kma[16]; /* with MSA8 */ 156 __u8 kdsa[16]; /* with MSA9 */ 157 __u8 sortl[32]; /* with STFLE.150 */ 158 __u8 dfltcc[32]; /* with STFLE.151 */ 159 __u8 reserved[1728]; 160 }; 161 162 #define KVM_S390_VM_CPU_PROCESSOR_UV_FEAT_GUEST 6 163 #define KVM_S390_VM_CPU_MACHINE_UV_FEAT_GUEST 7 164 165 #define KVM_S390_VM_CPU_UV_FEAT_NR_BITS 64 166 struct kvm_s390_vm_cpu_uv_feat { 167 union { 168 struct { 169 __u64 : 4; 170 __u64 ap : 1; /* bit 4 */ 171 __u64 ap_intr : 1; /* bit 5 */ 172 __u64 : 58; 173 }; 174 __u64 feat; 175 }; 176 }; 177 178 /* kvm attributes for crypto */ 179 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW 0 180 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1 181 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2 182 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3 183 #define KVM_S390_VM_CRYPTO_ENABLE_APIE 4 184 #define KVM_S390_VM_CRYPTO_DISABLE_APIE 5 185 186 /* kvm attributes for migration mode */ 187 #define KVM_S390_VM_MIGRATION_STOP 0 188 #define KVM_S390_VM_MIGRATION_START 1 189 #define KVM_S390_VM_MIGRATION_STATUS 2 190 191 /* for KVM_GET_REGS and KVM_SET_REGS */ 192 struct kvm_regs { 193 /* general purpose regs for s390 */ 194 __u64 gprs[16]; 195 }; 196 197 /* for KVM_GET_SREGS and KVM_SET_SREGS */ 198 struct kvm_sregs { 199 __u32 acrs[16]; 200 __u64 crs[16]; 201 }; 202 203 /* for KVM_GET_FPU and KVM_SET_FPU */ 204 struct kvm_fpu { 205 __u32 fpc; 206 __u64 fprs[16]; 207 }; 208 209 #define KVM_GUESTDBG_USE_HW_BP 0x00010000 210 211 #define KVM_HW_BP 1 212 #define KVM_HW_WP_WRITE 2 213 #define KVM_SINGLESTEP 4 214 215 struct kvm_debug_exit_arch { 216 __u64 addr; 217 __u8 type; 218 __u8 pad[7]; /* Should be set to 0 */ 219 }; 220 221 struct kvm_hw_breakpoint { 222 __u64 addr; 223 __u64 phys_addr; 224 __u64 len; 225 __u8 type; 226 __u8 pad[7]; /* Should be set to 0 */ 227 }; 228 229 /* for KVM_SET_GUEST_DEBUG */ 230 struct kvm_guest_debug_arch { 231 __u32 nr_hw_bp; 232 __u32 pad; /* Should be set to 0 */ 233 struct kvm_hw_breakpoint *hw_bp; 234 }; 235 236 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */ 237 #define KVM_S390_PFAULT_TOKEN_INVALID 0xffffffffffffffffULL 238 239 #define KVM_SYNC_PREFIX (1UL << 0) 240 #define KVM_SYNC_GPRS (1UL << 1) 241 #define KVM_SYNC_ACRS (1UL << 2) 242 #define KVM_SYNC_CRS (1UL << 3) 243 #define KVM_SYNC_ARCH0 (1UL << 4) 244 #define KVM_SYNC_PFAULT (1UL << 5) 245 #define KVM_SYNC_VRS (1UL << 6) 246 #define KVM_SYNC_RICCB (1UL << 7) 247 #define KVM_SYNC_FPRS (1UL << 8) 248 #define KVM_SYNC_GSCB (1UL << 9) 249 #define KVM_SYNC_BPBC (1UL << 10) 250 #define KVM_SYNC_ETOKEN (1UL << 11) 251 #define KVM_SYNC_DIAG318 (1UL << 12) 252 253 #define KVM_SYNC_S390_VALID_FIELDS \ 254 (KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \ 255 KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \ 256 KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN | \ 257 KVM_SYNC_DIAG318) 258 259 /* length and alignment of the sdnx as a power of two */ 260 #define SDNXC 8 261 #define SDNXL (1UL << SDNXC) 262 /* definition of registers in kvm_run */ 263 struct kvm_sync_regs { 264 __u64 prefix; /* prefix register */ 265 __u64 gprs[16]; /* general purpose registers */ 266 __u32 acrs[16]; /* access registers */ 267 __u64 crs[16]; /* control registers */ 268 __u64 todpr; /* tod programmable register [ARCH0] */ 269 __u64 cputm; /* cpu timer [ARCH0] */ 270 __u64 ckc; /* clock comparator [ARCH0] */ 271 __u64 pp; /* program parameter [ARCH0] */ 272 __u64 gbea; /* guest breaking-event address [ARCH0] */ 273 __u64 pft; /* pfault token [PFAULT] */ 274 __u64 pfs; /* pfault select [PFAULT] */ 275 __u64 pfc; /* pfault compare [PFAULT] */ 276 union { 277 __u64 vrs[32][2]; /* vector registers (KVM_SYNC_VRS) */ 278 __u64 fprs[16]; /* fp registers (KVM_SYNC_FPRS) */ 279 }; 280 __u8 reserved[512]; /* for future vector expansion */ 281 __u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */ 282 __u8 bpbc : 1; /* bp mode */ 283 __u8 reserved2 : 7; 284 __u8 padding1[51]; /* riccb needs to be 64byte aligned */ 285 __u8 riccb[64]; /* runtime instrumentation controls block */ 286 __u64 diag318; /* diagnose 0x318 info */ 287 __u8 padding2[184]; /* sdnx needs to be 256byte aligned */ 288 union { 289 __u8 sdnx[SDNXL]; /* state description annex */ 290 struct { 291 __u64 reserved1[2]; 292 __u64 gscb[4]; 293 __u64 etoken; 294 __u64 etoken_extension; 295 }; 296 }; 297 }; 298 299 #define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1) 300 #define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2) 301 #define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3) 302 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4) 303 #define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5) 304 #define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6) 305 #define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7) 306 #define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8) 307 #define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9) 308 #endif 309