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 reserved[1808]; 156}; 157 158/* kvm attributes for crypto */ 159#define KVM_S390_VM_CRYPTO_ENABLE_AES_KW 0 160#define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW 1 161#define KVM_S390_VM_CRYPTO_DISABLE_AES_KW 2 162#define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW 3 163 164/* kvm attributes for migration mode */ 165#define KVM_S390_VM_MIGRATION_STOP 0 166#define KVM_S390_VM_MIGRATION_START 1 167#define KVM_S390_VM_MIGRATION_STATUS 2 168 169/* for KVM_GET_REGS and KVM_SET_REGS */ 170struct kvm_regs { 171 /* general purpose regs for s390 */ 172 __u64 gprs[16]; 173}; 174 175/* for KVM_GET_SREGS and KVM_SET_SREGS */ 176struct kvm_sregs { 177 __u32 acrs[16]; 178 __u64 crs[16]; 179}; 180 181/* for KVM_GET_FPU and KVM_SET_FPU */ 182struct kvm_fpu { 183 __u32 fpc; 184 __u64 fprs[16]; 185}; 186 187#define KVM_GUESTDBG_USE_HW_BP 0x00010000 188 189#define KVM_HW_BP 1 190#define KVM_HW_WP_WRITE 2 191#define KVM_SINGLESTEP 4 192 193struct kvm_debug_exit_arch { 194 __u64 addr; 195 __u8 type; 196 __u8 pad[7]; /* Should be set to 0 */ 197}; 198 199struct kvm_hw_breakpoint { 200 __u64 addr; 201 __u64 phys_addr; 202 __u64 len; 203 __u8 type; 204 __u8 pad[7]; /* Should be set to 0 */ 205}; 206 207/* for KVM_SET_GUEST_DEBUG */ 208struct kvm_guest_debug_arch { 209 __u32 nr_hw_bp; 210 __u32 pad; /* Should be set to 0 */ 211 struct kvm_hw_breakpoint __user *hw_bp; 212}; 213 214/* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */ 215#define KVM_S390_PFAULT_TOKEN_INVALID 0xffffffffffffffffULL 216 217#define KVM_SYNC_PREFIX (1UL << 0) 218#define KVM_SYNC_GPRS (1UL << 1) 219#define KVM_SYNC_ACRS (1UL << 2) 220#define KVM_SYNC_CRS (1UL << 3) 221#define KVM_SYNC_ARCH0 (1UL << 4) 222#define KVM_SYNC_PFAULT (1UL << 5) 223#define KVM_SYNC_VRS (1UL << 6) 224#define KVM_SYNC_RICCB (1UL << 7) 225#define KVM_SYNC_FPRS (1UL << 8) 226#define KVM_SYNC_GSCB (1UL << 9) 227#define KVM_SYNC_BPBC (1UL << 10) 228#define KVM_SYNC_ETOKEN (1UL << 11) 229/* length and alignment of the sdnx as a power of two */ 230#define SDNXC 8 231#define SDNXL (1UL << SDNXC) 232/* definition of registers in kvm_run */ 233struct kvm_sync_regs { 234 __u64 prefix; /* prefix register */ 235 __u64 gprs[16]; /* general purpose registers */ 236 __u32 acrs[16]; /* access registers */ 237 __u64 crs[16]; /* control registers */ 238 __u64 todpr; /* tod programmable register [ARCH0] */ 239 __u64 cputm; /* cpu timer [ARCH0] */ 240 __u64 ckc; /* clock comparator [ARCH0] */ 241 __u64 pp; /* program parameter [ARCH0] */ 242 __u64 gbea; /* guest breaking-event address [ARCH0] */ 243 __u64 pft; /* pfault token [PFAULT] */ 244 __u64 pfs; /* pfault select [PFAULT] */ 245 __u64 pfc; /* pfault compare [PFAULT] */ 246 union { 247 __u64 vrs[32][2]; /* vector registers (KVM_SYNC_VRS) */ 248 __u64 fprs[16]; /* fp registers (KVM_SYNC_FPRS) */ 249 }; 250 __u8 reserved[512]; /* for future vector expansion */ 251 __u32 fpc; /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */ 252 __u8 bpbc : 1; /* bp mode */ 253 __u8 reserved2 : 7; 254 __u8 padding1[51]; /* riccb needs to be 64byte aligned */ 255 __u8 riccb[64]; /* runtime instrumentation controls block */ 256 __u8 padding2[192]; /* sdnx needs to be 256byte aligned */ 257 union { 258 __u8 sdnx[SDNXL]; /* state description annex */ 259 struct { 260 __u64 reserved1[2]; 261 __u64 gscb[4]; 262 __u64 etoken; 263 __u64 etoken_extension; 264 }; 265 }; 266}; 267 268#define KVM_REG_S390_TODPR (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1) 269#define KVM_REG_S390_EPOCHDIFF (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2) 270#define KVM_REG_S390_CPU_TIMER (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3) 271#define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4) 272#define KVM_REG_S390_PFTOKEN (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5) 273#define KVM_REG_S390_PFCOMPARE (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6) 274#define KVM_REG_S390_PFSELECT (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7) 275#define KVM_REG_S390_PP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8) 276#define KVM_REG_S390_GBEA (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9) 277#endif 278