linux-headers/asm-s390/kvm.h

   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 /* kvm attributes for crypto */
 163 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW        0
 164 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW        1
 165 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW       2
 166 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW       3
 167 #define KVM_S390_VM_CRYPTO_ENABLE_APIE          4
 168 #define KVM_S390_VM_CRYPTO_DISABLE_APIE         5
 169
 170 /* kvm attributes for migration mode */
 171 #define KVM_S390_VM_MIGRATION_STOP      0
 172 #define KVM_S390_VM_MIGRATION_START     1
 173 #define KVM_S390_VM_MIGRATION_STATUS    2
 174
 175 /* for KVM_GET_REGS and KVM_SET_REGS */
 176 struct kvm_regs {
 177         /* general purpose regs for s390 */
 178         __u64 gprs[16];
 179 };
 180
 181 /* for KVM_GET_SREGS and KVM_SET_SREGS */
 182 struct kvm_sregs {
 183         __u32 acrs[16];
 184         __u64 crs[16];
 185 };
 186
 187 /* for KVM_GET_FPU and KVM_SET_FPU */
 188 struct kvm_fpu {
 189         __u32 fpc;
 190         __u64 fprs[16];
 191 };
 192
 193 #define KVM_GUESTDBG_USE_HW_BP          0x00010000
 194
 195 #define KVM_HW_BP                       1
 196 #define KVM_HW_WP_WRITE                 2
 197 #define KVM_SINGLESTEP                  4
 198
 199 struct kvm_debug_exit_arch {
 200         __u64 addr;
 201         __u8 type;
 202         __u8 pad[7]; /* Should be set to 0 */
 203 };
 204
 205 struct kvm_hw_breakpoint {
 206         __u64 addr;
 207         __u64 phys_addr;
 208         __u64 len;
 209         __u8 type;
 210         __u8 pad[7]; /* Should be set to 0 */
 211 };
 212
 213 /* for KVM_SET_GUEST_DEBUG */
 214 struct kvm_guest_debug_arch {
 215         __u32 nr_hw_bp;
 216         __u32 pad; /* Should be set to 0 */
 217         struct kvm_hw_breakpoint *hw_bp;
 218 };
 219
 220 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
 221 #define KVM_S390_PFAULT_TOKEN_INVALID   0xffffffffffffffffULL
 222
 223 #define KVM_SYNC_PREFIX (1UL << 0)
 224 #define KVM_SYNC_GPRS   (1UL << 1)
 225 #define KVM_SYNC_ACRS   (1UL << 2)
 226 #define KVM_SYNC_CRS    (1UL << 3)
 227 #define KVM_SYNC_ARCH0  (1UL << 4)
 228 #define KVM_SYNC_PFAULT (1UL << 5)
 229 #define KVM_SYNC_VRS    (1UL << 6)
 230 #define KVM_SYNC_RICCB  (1UL << 7)
 231 #define KVM_SYNC_FPRS   (1UL << 8)
 232 #define KVM_SYNC_GSCB   (1UL << 9)
 233 #define KVM_SYNC_BPBC   (1UL << 10)
 234 #define KVM_SYNC_ETOKEN (1UL << 11)
 235 #define KVM_SYNC_DIAG318 (1UL << 12)
 236
 237 #define KVM_SYNC_S390_VALID_FIELDS \
 238         (KVM_SYNC_PREFIX | KVM_SYNC_GPRS | KVM_SYNC_ACRS | KVM_SYNC_CRS | \
 239          KVM_SYNC_ARCH0 | KVM_SYNC_PFAULT | KVM_SYNC_VRS | KVM_SYNC_RICCB | \
 240          KVM_SYNC_FPRS | KVM_SYNC_GSCB | KVM_SYNC_BPBC | KVM_SYNC_ETOKEN | \
 241          KVM_SYNC_DIAG318)
 242
 243 /* length and alignment of the sdnx as a power of two */
 244 #define SDNXC 8
 245 #define SDNXL (1UL << SDNXC)
 246 /* definition of registers in kvm_run */
 247 struct kvm_sync_regs {
 248         __u64 prefix;   /* prefix register */
 249         __u64 gprs[16]; /* general purpose registers */
 250         __u32 acrs[16]; /* access registers */
 251         __u64 crs[16];  /* control registers */
 252         __u64 todpr;    /* tod programmable register [ARCH0] */
 253         __u64 cputm;    /* cpu timer [ARCH0] */
 254         __u64 ckc;      /* clock comparator [ARCH0] */
 255         __u64 pp;       /* program parameter [ARCH0] */
 256         __u64 gbea;     /* guest breaking-event address [ARCH0] */
 257         __u64 pft;      /* pfault token [PFAULT] */
 258         __u64 pfs;      /* pfault select [PFAULT] */
 259         __u64 pfc;      /* pfault compare [PFAULT] */
 260         union {
 261                 __u64 vrs[32][2];       /* vector registers (KVM_SYNC_VRS) */
 262                 __u64 fprs[16];         /* fp registers (KVM_SYNC_FPRS) */
 263         };
 264         __u8  reserved[512];    /* for future vector expansion */
 265         __u32 fpc;              /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
 266         __u8 bpbc : 1;          /* bp mode */
 267         __u8 reserved2 : 7;
 268         __u8 padding1[51];      /* riccb needs to be 64byte aligned */
 269         __u8 riccb[64];         /* runtime instrumentation controls block */
 270         __u64 diag318;          /* diagnose 0x318 info */
 271         __u8 padding2[184];     /* sdnx needs to be 256byte aligned */
 272         union {
 273                 __u8 sdnx[SDNXL];  /* state description annex */
 274                 struct {
 275                         __u64 reserved1[2];
 276                         __u64 gscb[4];
 277                         __u64 etoken;
 278                         __u64 etoken_extension;
 279                 };
 280         };
 281 };
 282
 283 #define KVM_REG_S390_TODPR      (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
 284 #define KVM_REG_S390_EPOCHDIFF  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
 285 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
 286 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
 287 #define KVM_REG_S390_PFTOKEN    (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
 288 #define KVM_REG_S390_PFCOMPARE  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
 289 #define KVM_REG_S390_PFSELECT   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
 290 #define KVM_REG_S390_PP         (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
 291 #define KVM_REG_S390_GBEA       (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
 292 #endif