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