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 39struct 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 49struct kvm_s390_ais_req { 50 __u8 isc; 51 __u16 mode; 52}; 53 54struct 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 63struct 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 90struct 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 98struct 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 107struct 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 133struct 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 */ 140struct 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 */ 175struct kvm_regs { 176 /* general purpose regs for s390 */ 177 __u64 gprs[16]; 178}; 179 180/* for KVM_GET_SREGS and KVM_SET_SREGS */ 181struct kvm_sregs { 182 __u32 acrs[16]; 183 __u64 crs[16]; 184}; 185 186/* for KVM_GET_FPU and KVM_SET_FPU */ 187struct 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 198struct kvm_debug_exit_arch { 199 __u64 addr; 200 __u8 type; 201 __u8 pad[7]; /* Should be set to 0 */ 202}; 203 204struct 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 */ 213struct kvm_guest_debug_arch { 214 __u32 nr_hw_bp; 215 __u32 pad; /* Should be set to 0 */ 216 struct kvm_hw_breakpoint __user *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#define KVM_SYNC_DIAG318 (1UL << 12) 235 236#define KVM_SYNC_S390_VALID_FIELDS \ 237 (KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \ 238 KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \ 239 KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN | \ 240 KVM_SYNC_DIAG318) 241 242/* length and alignment of the sdnx as a power of two */ 243#define SDNXC 8 244#define SDNXL (1UL << SDNXC) 245/* definition of registers in kvm_run */ 246struct kvm_sync_regs { 247 __u64 prefix; /* prefix register */ 248 __u64 gprs[16]; /* general purpose registers */ 249 __u32 acrs[16]; /* access registers */ 250 __u64 crs[16]; /* control registers */ 251 __u64 todpr; /* tod programmable register [ARCH0] */ 252 __u64 cputm; /* cpu timer [ARCH0] */ 253 __u64 ckc; /* clock comparator [ARCH0] */ 254 __u64 pp; /* program parameter [ARCH0] */ 255 __u64 gbea; /* guest breaking-event address [ARCH0] */ 256 __u64 pft; /* pfault token [PFAULT] */ 257 __u64 pfs; /* pfault select [PFAULT] */ 258 __u64 pfc; /* pfault compare [PFAULT] */ 259 union { 260 __u64 vrs[32][2]; /* vector registers (KVM_SYNC_VRS) */ 261 __u64 fprs[16]; /* fp registers (KVM_SYNC_FPRS) */ 262 }; 263 __u8 reserved[512]; /* for future vector expansion */ 264 __u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */ 265 __u8 bpbc : 1; /* bp mode */ 266 __u8 reserved2 : 7; 267 __u8 padding1[51]; /* riccb needs to be 64byte aligned */ 268 __u8 riccb[64]; /* runtime instrumentation controls block */ 269 __u64 diag318; /* diagnose 0x318 info */ 270 __u8 padding2[184]; /* sdnx needs to be 256byte aligned */ 271 union { 272 __u8 sdnx[SDNXL]; /* state description annex */ 273 struct { 274 __u64 reserved1[2]; 275 __u64 gscb[4]; 276 __u64 etoken; 277 __u64 etoken_extension; 278 }; 279 }; 280}; 281 282#define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1) 283#define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2) 284#define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3) 285#define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4) 286#define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5) 287#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6) 288#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7) 289#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8) 290#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9) 291#endif 292