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
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License (version 2 only)
  11  * as published by the Free Software Foundation.
  12  *
  13  *    Author(s): Carsten Otte <cotte@de.ibm.com>
  14  *               Christian Borntraeger <borntraeger@de.ibm.com>
  15  */
  16 #include <linux/types.h>
  17
  18 #define __KVM_S390
  19 #define __KVM_HAVE_GUEST_DEBUG
  20
  21 /* Device control API: s390-specific devices */
  22 #define KVM_DEV_FLIC_GET_ALL_IRQS       1
  23 #define KVM_DEV_FLIC_ENQUEUE            2
  24 #define KVM_DEV_FLIC_CLEAR_IRQS         3
  25 #define KVM_DEV_FLIC_APF_ENABLE         4
  26 #define KVM_DEV_FLIC_APF_DISABLE_WAIT   5
  27 #define KVM_DEV_FLIC_ADAPTER_REGISTER   6
  28 #define KVM_DEV_FLIC_ADAPTER_MODIFY     7
  29 #define KVM_DEV_FLIC_CLEAR_IO_IRQ       8
  30 #define KVM_DEV_FLIC_AISM               9
  31 #define KVM_DEV_FLIC_AIRQ_INJECT        10
  32 #define KVM_DEV_FLIC_AISM_ALL           11
  33 /*
  34  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
  35  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
  36  * There are also sclp and machine checks. This gives us
  37  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
  38  * Lets round up to 8192 pages.
  39  */
  40 #define KVM_S390_MAX_FLOAT_IRQS 266250
  41 #define KVM_S390_FLIC_MAX_BUFFER        0x2000000
  42
  43 struct kvm_s390_io_adapter {
  44         __u32 id;
  45         __u8 isc;
  46         __u8 maskable;
  47         __u8 swap;
  48         __u8 flags;
  49 };
  50
  51 #define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
  52
  53 struct kvm_s390_ais_req {
  54         __u8 isc;
  55         __u16 mode;
  56 };
  57
  58 struct kvm_s390_ais_all {
  59         __u8 simm;
  60         __u8 nimm;
  61 };
  62
  63 #define KVM_S390_IO_ADAPTER_MASK 1
  64 #define KVM_S390_IO_ADAPTER_MAP 2
  65 #define KVM_S390_IO_ADAPTER_UNMAP 3
  66
  67 struct kvm_s390_io_adapter_req {
  68         __u32 id;
  69         __u8 type;
  70         __u8 mask;
  71         __u16 pad0;
  72         __u64 addr;
  73 };
  74
  75 /* kvm attr_group  on vm fd */
  76 #define KVM_S390_VM_MEM_CTRL            0
  77 #define KVM_S390_VM_TOD                 1
  78 #define KVM_S390_VM_CRYPTO              2
  79 #define KVM_S390_VM_CPU_MODEL           3
  80 #define KVM_S390_VM_MIGRATION           4
  81
  82 /* kvm attributes for mem_ctrl */
  83 #define KVM_S390_VM_MEM_ENABLE_CMMA     0
  84 #define KVM_S390_VM_MEM_CLR_CMMA        1
  85 #define KVM_S390_VM_MEM_LIMIT_SIZE      2
  86
  87 #define KVM_S390_NO_MEM_LIMIT           U64_MAX
  88
  89 /* kvm attributes for KVM_S390_VM_TOD */
  90 #define KVM_S390_VM_TOD_LOW             0
  91 #define KVM_S390_VM_TOD_HIGH            1
  92 #define KVM_S390_VM_TOD_EXT             2
  93
  94 struct kvm_s390_vm_tod_clock {
  95         __u8  epoch_idx;
  96         __u64 tod;
  97 };
  98
  99 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
 100 /* processor related attributes are r/w */
 101 #define KVM_S390_VM_CPU_PROCESSOR       0
 102 struct kvm_s390_vm_cpu_processor {
 103         __u64 cpuid;
 104         __u16 ibc;
 105         __u8  pad[6];
 106         __u64 fac_list[256];
 107 };
 108
 109 /* machine related attributes are r/o */
 110 #define KVM_S390_VM_CPU_MACHINE         1
 111 struct kvm_s390_vm_cpu_machine {
 112         __u64 cpuid;
 113         __u32 ibc;
 114         __u8  pad[4];
 115         __u64 fac_mask[256];
 116         __u64 fac_list[256];
 117 };
 118
 119 #define KVM_S390_VM_CPU_PROCESSOR_FEAT  2
 120 #define KVM_S390_VM_CPU_MACHINE_FEAT    3
 121
 122 #define KVM_S390_VM_CPU_FEAT_NR_BITS    1024
 123 #define KVM_S390_VM_CPU_FEAT_ESOP       0
 124 #define KVM_S390_VM_CPU_FEAT_SIEF2      1
 125 #define KVM_S390_VM_CPU_FEAT_64BSCAO    2
 126 #define KVM_S390_VM_CPU_FEAT_SIIF       3
 127 #define KVM_S390_VM_CPU_FEAT_GPERE      4
 128 #define KVM_S390_VM_CPU_FEAT_GSLS       5
 129 #define KVM_S390_VM_CPU_FEAT_IB         6
 130 #define KVM_S390_VM_CPU_FEAT_CEI        7
 131 #define KVM_S390_VM_CPU_FEAT_IBS        8
 132 #define KVM_S390_VM_CPU_FEAT_SKEY       9
 133 #define KVM_S390_VM_CPU_FEAT_CMMA       10
 134 #define KVM_S390_VM_CPU_FEAT_PFMFI      11
 135 #define KVM_S390_VM_CPU_FEAT_SIGPIF     12
 136 #define KVM_S390_VM_CPU_FEAT_KSS        13
 137 struct kvm_s390_vm_cpu_feat {
 138         __u64 feat[16];
 139 };
 140
 141 #define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC       4
 142 #define KVM_S390_VM_CPU_MACHINE_SUBFUNC         5
 143 /* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */
 144 struct kvm_s390_vm_cpu_subfunc {
 145         __u8 plo[32];           /* always */
 146         __u8 ptff[16];          /* with TOD-clock steering */
 147         __u8 kmac[16];          /* with MSA */
 148         __u8 kmc[16];           /* with MSA */
 149         __u8 km[16];            /* with MSA */
 150         __u8 kimd[16];          /* with MSA */
 151         __u8 klmd[16];          /* with MSA */
 152         __u8 pckmo[16];         /* with MSA3 */
 153         __u8 kmctr[16];         /* with MSA4 */
 154         __u8 kmf[16];           /* with MSA4 */
 155         __u8 kmo[16];           /* with MSA4 */
 156         __u8 pcc[16];           /* with MSA4 */
 157         __u8 ppno[16];          /* with MSA5 */
 158         __u8 kma[16];           /* with MSA8 */
 159         __u8 reserved[1808];
 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
 168 /* kvm attributes for migration mode */
 169 #define KVM_S390_VM_MIGRATION_STOP      0
 170 #define KVM_S390_VM_MIGRATION_START     1
 171 #define KVM_S390_VM_MIGRATION_STATUS    2
 172
 173 /* for KVM_GET_REGS and KVM_SET_REGS */
 174 struct kvm_regs {
 175         /* general purpose regs for s390 */
 176         __u64 gprs[16];
 177 };
 178
 179 /* for KVM_GET_SREGS and KVM_SET_SREGS */
 180 struct kvm_sregs {
 181         __u32 acrs[16];
 182         __u64 crs[16];
 183 };
 184
 185 /* for KVM_GET_FPU and KVM_SET_FPU */
 186 struct kvm_fpu {
 187         __u32 fpc;
 188         __u64 fprs[16];
 189 };
 190
 191 #define KVM_GUESTDBG_USE_HW_BP          0x00010000
 192
 193 #define KVM_HW_BP                       1
 194 #define KVM_HW_WP_WRITE                 2
 195 #define KVM_SINGLESTEP                  4
 196
 197 struct kvm_debug_exit_arch {
 198         __u64 addr;
 199         __u8 type;
 200         __u8 pad[7]; /* Should be set to 0 */
 201 };
 202
 203 struct kvm_hw_breakpoint {
 204         __u64 addr;
 205         __u64 phys_addr;
 206         __u64 len;
 207         __u8 type;
 208         __u8 pad[7]; /* Should be set to 0 */
 209 };
 210
 211 /* for KVM_SET_GUEST_DEBUG */
 212 struct kvm_guest_debug_arch {
 213         __u32 nr_hw_bp;
 214         __u32 pad; /* Should be set to 0 */
 215         struct kvm_hw_breakpoint *hw_bp;
 216 };
 217
 218 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
 219 #define KVM_S390_PFAULT_TOKEN_INVALID   0xffffffffffffffffULL
 220
 221 #define KVM_SYNC_PREFIX (1UL << 0)
 222 #define KVM_SYNC_GPRS   (1UL << 1)
 223 #define KVM_SYNC_ACRS   (1UL << 2)
 224 #define KVM_SYNC_CRS    (1UL << 3)
 225 #define KVM_SYNC_ARCH0  (1UL << 4)
 226 #define KVM_SYNC_PFAULT (1UL << 5)
 227 #define KVM_SYNC_VRS    (1UL << 6)
 228 #define KVM_SYNC_RICCB  (1UL << 7)
 229 #define KVM_SYNC_FPRS   (1UL << 8)
 230 #define KVM_SYNC_GSCB   (1UL << 9)
 231 /* length and alignment of the sdnx as a power of two */
 232 #define SDNXC 8
 233 #define SDNXL (1UL << SDNXC)
 234 /* definition of registers in kvm_run */
 235 struct kvm_sync_regs {
 236         __u64 prefix;   /* prefix register */
 237         __u64 gprs[16]; /* general purpose registers */
 238         __u32 acrs[16]; /* access registers */
 239         __u64 crs[16];  /* control registers */
 240         __u64 todpr;    /* tod programmable register [ARCH0] */
 241         __u64 cputm;    /* cpu timer [ARCH0] */
 242         __u64 ckc;      /* clock comparator [ARCH0] */
 243         __u64 pp;       /* program parameter [ARCH0] */
 244         __u64 gbea;     /* guest breaking-event address [ARCH0] */
 245         __u64 pft;      /* pfault token [PFAULT] */
 246         __u64 pfs;      /* pfault select [PFAULT] */
 247         __u64 pfc;      /* pfault compare [PFAULT] */
 248         union {
 249                 __u64 vrs[32][2];       /* vector registers (KVM_SYNC_VRS) */
 250                 __u64 fprs[16];         /* fp registers (KVM_SYNC_FPRS) */
 251         };
 252         __u8  reserved[512];    /* for future vector expansion */
 253         __u32 fpc;              /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
 254         __u8 padding1[52];      /* 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                 };
 263         };
 264 };
 265
 266 #define KVM_REG_S390_TODPR      (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
 267 #define KVM_REG_S390_EPOCHDIFF  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
 268 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
 269 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
 270 #define KVM_REG_S390_PFTOKEN    (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
 271 #define KVM_REG_S390_PFCOMPARE  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
 272 #define KVM_REG_S390_PFSELECT   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
 273 #define KVM_REG_S390_PP         (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
 274 #define KVM_REG_S390_GBEA       (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
 275 #endif