tools/arch/s390/include/uapi/asm/kvm.h

   1 #ifndef __LINUX_KVM_S390_H
   2 #define __LINUX_KVM_S390_H
   3 /*
   4  * KVM s390 specific structures and definitions
   5  *
   6  * Copyright IBM Corp. 2008
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License (version 2 only)
  10  * as published by the Free Software Foundation.
  11  *
  12  *    Author(s): Carsten Otte <cotte@de.ibm.com>
  13  *               Christian Borntraeger <borntraeger@de.ibm.com>
  14  */
  15 #include <linux/types.h>
  16
  17 #define __KVM_S390
  18 #define __KVM_HAVE_GUEST_DEBUG
  19
  20 /* Device control API: s390-specific devices */
  21 #define KVM_DEV_FLIC_GET_ALL_IRQS       1
  22 #define KVM_DEV_FLIC_ENQUEUE            2
  23 #define KVM_DEV_FLIC_CLEAR_IRQS         3
  24 #define KVM_DEV_FLIC_APF_ENABLE         4
  25 #define KVM_DEV_FLIC_APF_DISABLE_WAIT   5
  26 #define KVM_DEV_FLIC_ADAPTER_REGISTER   6
  27 #define KVM_DEV_FLIC_ADAPTER_MODIFY     7
  28 #define KVM_DEV_FLIC_CLEAR_IO_IRQ       8
  29 #define KVM_DEV_FLIC_AISM               9
  30 #define KVM_DEV_FLIC_AIRQ_INJECT        10
  31 #define KVM_DEV_FLIC_AISM_ALL           11
  32 /*
  33  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
  34  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
  35  * There are also sclp and machine checks. This gives us
  36  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
  37  * Lets round up to 8192 pages.
  38  */
  39 #define KVM_S390_MAX_FLOAT_IRQS 266250
  40 #define KVM_S390_FLIC_MAX_BUFFER        0x2000000
  41
  42 struct kvm_s390_io_adapter {
  43         __u32 id;
  44         __u8 isc;
  45         __u8 maskable;
  46         __u8 swap;
  47         __u8 flags;
  48 };
  49
  50 #define KVM_S390_ADAPTER_SUPPRESSIBLE 0x01
  51
  52 struct kvm_s390_ais_req {
  53         __u8 isc;
  54         __u16 mode;
  55 };
  56
  57 struct kvm_s390_ais_all {
  58         __u8 simm;
  59         __u8 nimm;
  60 };
  61
  62 #define KVM_S390_IO_ADAPTER_MASK 1
  63 #define KVM_S390_IO_ADAPTER_MAP 2
  64 #define KVM_S390_IO_ADAPTER_UNMAP 3
  65
  66 struct kvm_s390_io_adapter_req {
  67         __u32 id;
  68         __u8 type;
  69         __u8 mask;
  70         __u16 pad0;
  71         __u64 addr;
  72 };
  73
  74 /* kvm attr_group  on vm fd */
  75 #define KVM_S390_VM_MEM_CTRL            0
  76 #define KVM_S390_VM_TOD                 1
  77 #define KVM_S390_VM_CRYPTO              2
  78 #define KVM_S390_VM_CPU_MODEL           3
  79 #define KVM_S390_VM_MIGRATION           4
  80
  81 /* kvm attributes for mem_ctrl */
  82 #define KVM_S390_VM_MEM_ENABLE_CMMA     0
  83 #define KVM_S390_VM_MEM_CLR_CMMA        1
  84 #define KVM_S390_VM_MEM_LIMIT_SIZE      2
  85
  86 #define KVM_S390_NO_MEM_LIMIT           U64_MAX
  87
  88 /* kvm attributes for KVM_S390_VM_TOD */
  89 #define KVM_S390_VM_TOD_LOW             0
  90 #define KVM_S390_VM_TOD_HIGH            1
  91
  92 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
  93 /* processor related attributes are r/w */
  94 #define KVM_S390_VM_CPU_PROCESSOR       0
  95 struct kvm_s390_vm_cpu_processor {
  96         __u64 cpuid;
  97         __u16 ibc;
  98         __u8  pad[6];
  99         __u64 fac_list[256];
 100 };
 101
 102 /* machine related attributes are r/o */
 103 #define KVM_S390_VM_CPU_MACHINE         1
 104 struct kvm_s390_vm_cpu_machine {
 105         __u64 cpuid;
 106         __u32 ibc;
 107         __u8  pad[4];
 108         __u64 fac_mask[256];
 109         __u64 fac_list[256];
 110 };
 111
 112 #define KVM_S390_VM_CPU_PROCESSOR_FEAT  2
 113 #define KVM_S390_VM_CPU_MACHINE_FEAT    3
 114
 115 #define KVM_S390_VM_CPU_FEAT_NR_BITS    1024
 116 #define KVM_S390_VM_CPU_FEAT_ESOP       0
 117 #define KVM_S390_VM_CPU_FEAT_SIEF2      1
 118 #define KVM_S390_VM_CPU_FEAT_64BSCAO    2
 119 #define KVM_S390_VM_CPU_FEAT_SIIF       3
 120 #define KVM_S390_VM_CPU_FEAT_GPERE      4
 121 #define KVM_S390_VM_CPU_FEAT_GSLS       5
 122 #define KVM_S390_VM_CPU_FEAT_IB         6
 123 #define KVM_S390_VM_CPU_FEAT_CEI        7
 124 #define KVM_S390_VM_CPU_FEAT_IBS        8
 125 #define KVM_S390_VM_CPU_FEAT_SKEY       9
 126 #define KVM_S390_VM_CPU_FEAT_CMMA       10
 127 #define KVM_S390_VM_CPU_FEAT_PFMFI      11
 128 #define KVM_S390_VM_CPU_FEAT_SIGPIF     12
 129 #define KVM_S390_VM_CPU_FEAT_KSS        13
 130 struct kvm_s390_vm_cpu_feat {
 131         __u64 feat[16];
 132 };
 133
 134 #define KVM_S390_VM_CPU_PROCESSOR_SUBFUNC       4
 135 #define KVM_S390_VM_CPU_MACHINE_SUBFUNC         5
 136 /* for "test bit" instructions MSB 0 bit ordering, for "query" raw blocks */
 137 struct kvm_s390_vm_cpu_subfunc {
 138         __u8 plo[32];           /* always */
 139         __u8 ptff[16];          /* with TOD-clock steering */
 140         __u8 kmac[16];          /* with MSA */
 141         __u8 kmc[16];           /* with MSA */
 142         __u8 km[16];            /* with MSA */
 143         __u8 kimd[16];          /* with MSA */
 144         __u8 klmd[16];          /* with MSA */
 145         __u8 pckmo[16];         /* with MSA3 */
 146         __u8 kmctr[16];         /* with MSA4 */
 147         __u8 kmf[16];           /* with MSA4 */
 148         __u8 kmo[16];           /* with MSA4 */
 149         __u8 pcc[16];           /* with MSA4 */
 150         __u8 ppno[16];          /* with MSA5 */
 151         __u8 kma[16];           /* with MSA8 */
 152         __u8 reserved[1808];
 153 };
 154
 155 /* kvm attributes for crypto */
 156 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW        0
 157 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW        1
 158 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW       2
 159 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW       3
 160
 161 /* kvm attributes for migration mode */
 162 #define KVM_S390_VM_MIGRATION_STOP      0
 163 #define KVM_S390_VM_MIGRATION_START     1
 164 #define KVM_S390_VM_MIGRATION_STATUS    2
 165
 166 /* for KVM_GET_REGS and KVM_SET_REGS */
 167 struct kvm_regs {
 168         /* general purpose regs for s390 */
 169         __u64 gprs[16];
 170 };
 171
 172 /* for KVM_GET_SREGS and KVM_SET_SREGS */
 173 struct kvm_sregs {
 174         __u32 acrs[16];
 175         __u64 crs[16];
 176 };
 177
 178 /* for KVM_GET_FPU and KVM_SET_FPU */
 179 struct kvm_fpu {
 180         __u32 fpc;
 181         __u64 fprs[16];
 182 };
 183
 184 #define KVM_GUESTDBG_USE_HW_BP          0x00010000
 185
 186 #define KVM_HW_BP                       1
 187 #define KVM_HW_WP_WRITE                 2
 188 #define KVM_SINGLESTEP                  4
 189
 190 struct kvm_debug_exit_arch {
 191         __u64 addr;
 192         __u8 type;
 193         __u8 pad[7]; /* Should be set to 0 */
 194 };
 195
 196 struct kvm_hw_breakpoint {
 197         __u64 addr;
 198         __u64 phys_addr;
 199         __u64 len;
 200         __u8 type;
 201         __u8 pad[7]; /* Should be set to 0 */
 202 };
 203
 204 /* for KVM_SET_GUEST_DEBUG */
 205 struct kvm_guest_debug_arch {
 206         __u32 nr_hw_bp;
 207         __u32 pad; /* Should be set to 0 */
 208         struct kvm_hw_breakpoint __user *hw_bp;
 209 };
 210
 211 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
 212 #define KVM_S390_PFAULT_TOKEN_INVALID   0xffffffffffffffffULL
 213
 214 #define KVM_SYNC_PREFIX (1UL << 0)
 215 #define KVM_SYNC_GPRS   (1UL << 1)
 216 #define KVM_SYNC_ACRS   (1UL << 2)
 217 #define KVM_SYNC_CRS    (1UL << 3)
 218 #define KVM_SYNC_ARCH0  (1UL << 4)
 219 #define KVM_SYNC_PFAULT (1UL << 5)
 220 #define KVM_SYNC_VRS    (1UL << 6)
 221 #define KVM_SYNC_RICCB  (1UL << 7)
 222 #define KVM_SYNC_FPRS   (1UL << 8)
 223 #define KVM_SYNC_GSCB   (1UL << 9)
 224 /* length and alignment of the sdnx as a power of two */
 225 #define SDNXC 8
 226 #define SDNXL (1UL << SDNXC)
 227 /* definition of registers in kvm_run */
 228 struct kvm_sync_regs {
 229         __u64 prefix;   /* prefix register */
 230         __u64 gprs[16]; /* general purpose registers */
 231         __u32 acrs[16]; /* access registers */
 232         __u64 crs[16];  /* control registers */
 233         __u64 todpr;    /* tod programmable register [ARCH0] */
 234         __u64 cputm;    /* cpu timer [ARCH0] */
 235         __u64 ckc;      /* clock comparator [ARCH0] */
 236         __u64 pp;       /* program parameter [ARCH0] */
 237         __u64 gbea;     /* guest breaking-event address [ARCH0] */
 238         __u64 pft;      /* pfault token [PFAULT] */
 239         __u64 pfs;      /* pfault select [PFAULT] */
 240         __u64 pfc;      /* pfault compare [PFAULT] */
 241         union {
 242                 __u64 vrs[32][2];       /* vector registers (KVM_SYNC_VRS) */
 243                 __u64 fprs[16];         /* fp registers (KVM_SYNC_FPRS) */
 244         };
 245         __u8  reserved[512];    /* for future vector expansion */
 246         __u32 fpc;              /* valid on KVM_SYNC_VRS or KVM_SYNC_FPRS */
 247         __u8 padding1[52];      /* riccb needs to be 64byte aligned */
 248         __u8 riccb[64];         /* runtime instrumentation controls block */
 249         __u8 padding2[192];     /* sdnx needs to be 256byte aligned */
 250         union {
 251                 __u8 sdnx[SDNXL];  /* state description annex */
 252                 struct {
 253                         __u64 reserved1[2];
 254                         __u64 gscb[4];
 255                 };
 256         };
 257 };
 258
 259 #define KVM_REG_S390_TODPR      (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
 260 #define KVM_REG_S390_EPOCHDIFF  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
 261 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
 262 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
 263 #define KVM_REG_S390_PFTOKEN    (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
 264 #define KVM_REG_S390_PFCOMPARE  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
 265 #define KVM_REG_S390_PFSELECT   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
 266 #define KVM_REG_S390_PP         (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
 267 #define KVM_REG_S390_GBEA       (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
 268 #endif