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 78 /* kvm attributes for mem_ctrl */ 79 #define KVM_S390_VM_MEM_ENABLE_CMMA 0 80 #define KVM_S390_VM_MEM_CLR_CMMA 1 81 #define KVM_S390_VM_MEM_LIMIT_SIZE 2 82 83 #define KVM_S390_NO_MEM_LIMIT U64_MAX 84 85 /* kvm attributes for KVM_S390_VM_TOD */ 86 #define KVM_S390_VM_TOD_LOW 0 87 #define KVM_S390_VM_TOD_HIGH 1 88 #define KVM_S390_VM_TOD_EXT 2 89 90 struct kvm_s390_vm_tod_clock { 91 __u8 epoch_idx; 92 __u64 tod; 93 }; 94 95 /* kvm attributes for KVM_S390_VM_CPU_MODEL */ 96 /* processor related attributes are r/w */ 97 #define KVM_S390_VM_CPU_PROCESSOR 0 98 struct kvm_s390_vm_cpu_processor { 99 __u64 cpuid; 100 __u16 ibc; 101 __u8 pad[6]; 102 __u64 fac_list[256]; 103 }; 104 105 /* machine related attributes are r/o */ 106 #define KVM_S390_VM_CPU_MACHINE 1 107 struct kvm_s390_vm_cpu_machine { 108 __u64 cpuid; 109 __u32 ibc; 110 __u8 pad[4]; 111 __u64 fac_mask[256]; 112 __u64 fac_list[256]; 113 }; 114 115 #define KVM_S390_VM_CPU_PROCESSOR_FEAT 2 116 #define KVM_S390_VM_CPU_MACHINE_FEAT 3 117 118 #define KVM_S390_VM_CPU_FEAT_NR_BITS 1024 119 #define KVM_S390_VM_CPU_FEAT_ESOP 0 120 #define KVM_S390_VM_CPU_FEAT_SIEF2 1 121 #define KVM_S390_VM_CPU_FEAT_64BSCAO 2 122 #define KVM_S390_VM_CPU_FEAT_SIIF 3 123 #define KVM_S390_VM_CPU_FEAT_GPERE 4 124 #define KVM_S390_VM_CPU_FEAT_GSLS 5 125 #define KVM_S390_VM_CPU_FEAT_IB 6 126 #define KVM_S390_VM_CPU_FEAT_CEI 7 127 #define KVM_S390_VM_CPU_FEAT_IBS 8 128 #define KVM_S390_VM_CPU_FEAT_SKEY 9 129 #define KVM_S390_VM_CPU_FEAT_CMMA 10 130 #define KVM_S390_VM_CPU_FEAT_PFMFI 11 131 #define KVM_S390_VM_CPU_FEAT_SIGPIF 12 132 #define KVM_S390_VM_CPU_FEAT_KSS 13 133 struct kvm_s390_vm_cpu_feat { 134 __u64 feat[16]; 135 }; 136 137 #define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC 4 138 #define KVM_S390_VM_CPU_MACHINE_SUBFUNC 5 139 /* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */ 140 struct kvm_s390_vm_cpu_subfunc { 141 __u8 plo[32]; /* always */ 142 __u8 ptff[16]; /* with TOD-clock steering */ 143 __u8 kmac[16]; /* with MSA */ 144 __u8 kmc[16]; /* with MSA */ 145 __u8 km[16]; /* with MSA */ 146 __u8 kimd[16]; /* with MSA */ 147 __u8 klmd[16]; /* with MSA */ 148 __u8 pckmo[16]; /* with MSA3 */ 149 __u8 kmctr[16]; /* with MSA4 */ 150 __u8 kmf[16]; /* with MSA4 */ 151 __u8 kmo[16]; /* with MSA4 */ 152 __u8 pcc[16]; /* with MSA4 */ 153 __u8 ppno[16]; /* with MSA5 */ 154 __u8 kma[16]; /* with MSA8 */ 155 __u8 kdsa[16]; /* with MSA9 */ 156 __u8 sortl[32]; /* with STFLE.150 */ 157 __u8 dfltcc[32]; /* with STFLE.151 */ 158 __u8 reserved[1728]; 159 }; 160 161 /* kvm attributes for crypto */ 162 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW 0 163 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1 164 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2 165 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3 166 #define KVM_S390_VM_CRYPTO_ENABLE_APIE 4 167 #define KVM_S390_VM_CRYPTO_DISABLE_APIE 5 168 169 /* kvm attributes for migration mode */ 170 #define KVM_S390_VM_MIGRATION_STOP 0 171 #define KVM_S390_VM_MIGRATION_START 1 172 #define KVM_S390_VM_MIGRATION_STATUS 2 173 174 /* for KVM_GET_REGS and KVM_SET_REGS */ 175 struct kvm_regs { 176 /* general purpose regs for s390 */ 177 __u64 gprs[16]; 178 }; 179 180 /* for KVM_GET_SREGS and KVM_SET_SREGS */ 181 struct kvm_sregs { 182 __u32 acrs[16]; 183 __u64 crs[16]; 184 }; 185 186 /* for KVM_GET_FPU and KVM_SET_FPU */ 187 struct kvm_fpu { 188 __u32 fpc; 189 __u64 fprs[16]; 190 }; 191 192 #define KVM_GUESTDBG_USE_HW_BP 0x00010000 193 194 #define KVM_HW_BP 1 195 #define KVM_HW_WP_WRITE 2 196 #define KVM_SINGLESTEP 4 197 198 struct kvm_debug_exit_arch { 199 __u64 addr; 200 __u8 type; 201 __u8 pad[7]; /* Should be set to 0 */ 202 }; 203 204 struct kvm_hw_breakpoint { 205 __u64 addr; 206 __u64 phys_addr; 207 __u64 len; 208 __u8 type; 209 __u8 pad[7]; /* Should be set to 0 */ 210 }; 211 212 /* for KVM_SET_GUEST_DEBUG */ 213 struct kvm_guest_debug_arch { 214 __u32 nr_hw_bp; 215 __u32 pad; /* Should be set to 0 */ 216 struct kvm_hw_breakpoint *hw_bp; 217 }; 218 219 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */ 220 #define KVM_S390_PFAULT_TOKEN_INVALID 0xffffffffffffffffULL 221 222 #define KVM_SYNC_PREFIX (1UL << 0) 223 #define KVM_SYNC_GPRS (1UL << 1) 224 #define KVM_SYNC_ACRS (1UL << 2) 225 #define KVM_SYNC_CRS (1UL << 3) 226 #define KVM_SYNC_ARCH0 (1UL << 4) 227 #define KVM_SYNC_PFAULT (1UL << 5) 228 #define KVM_SYNC_VRS (1UL << 6) 229 #define KVM_SYNC_RICCB (1UL << 7) 230 #define KVM_SYNC_FPRS (1UL << 8) 231 #define KVM_SYNC_GSCB (1UL << 9) 232 #define KVM_SYNC_BPBC (1UL << 10) 233 #define KVM_SYNC_ETOKEN (1UL << 11) 234 235 #define KVM_SYNC_S390_VALID_FIELDS \ 236 (KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \ 237 KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \ 238 KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN) 239 240 /* length and alignment of the sdnx as a power of two */ 241 #define SDNXC 8 242 #define SDNXL (1UL << SDNXC) 243 /* definition of registers in kvm_run */ 244 struct kvm_sync_regs { 245 __u64 prefix; /* prefix register */ 246 __u64 gprs[16]; /* general purpose registers */ 247 __u32 acrs[16]; /* access registers */ 248 __u64 crs[16]; /* control registers */ 249 __u64 todpr; /* tod programmable register [ARCH0] */ 250 __u64 cputm; /* cpu timer [ARCH0] */ 251 __u64 ckc; /* clock comparator [ARCH0] */ 252 __u64 pp; /* program parameter [ARCH0] */ 253 __u64 gbea; /* guest breaking-event address [ARCH0] */ 254 __u64 pft; /* pfault token [PFAULT] */ 255 __u64 pfs; /* pfault select [PFAULT] */ 256 __u64 pfc; /* pfault compare [PFAULT] */ 257 union { 258 __u64 vrs[32][2]; /* vector registers (KVM_SYNC_VRS) */ 259 __u64 fprs[16]; /* fp registers (KVM_SYNC_FPRS) */ 260 }; 261 __u8 reserved[512]; /* for future vector expansion */ 262 __u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */ 263 __u8 bpbc : 1; /* bp mode */ 264 __u8 reserved2 : 7; 265 __u8 padding1[51]; /* riccb needs to be 64byte aligned */ 266 __u8 riccb[64]; /* runtime instrumentation controls block */ 267 __u8 padding2[192]; /* sdnx needs to be 256byte aligned */ 268 union { 269 __u8 sdnx[SDNXL]; /* state description annex */ 270 struct { 271 __u64 reserved1[2]; 272 __u64 gscb[4]; 273 __u64 etoken; 274 __u64 etoken_extension; 275 }; 276 }; 277 }; 278 279 #define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1) 280 #define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2) 281 #define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3) 282 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4) 283 #define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5) 284 #define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6) 285 #define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7) 286 #define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8) 287 #define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9) 288 #endif 289