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 /*
  29  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
  30  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
  31  * There are also sclp and machine checks. This gives us
  32  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
  33  * Lets round up to 8192 pages.
  34  */
  35 #define KVM_S390_MAX_FLOAT_IRQS 266250
  36 #define KVM_S390_FLIC_MAX_BUFFER        0x2000000
  37
  38 struct kvm_s390_io_adapter {
  39         __u32 id;
  40         __u8 isc;
  41         __u8 maskable;
  42         __u8 swap;
  43         __u8 pad;
  44 };
  45
  46 #define KVM_S390_IO_ADAPTER_MASK 1
  47 #define KVM_S390_IO_ADAPTER_MAP 2
  48 #define KVM_S390_IO_ADAPTER_UNMAP 3
  49
  50 struct kvm_s390_io_adapter_req {
  51         __u32 id;
  52         __u8 type;
  53         __u8 mask;
  54         __u16 pad0;
  55         __u64 addr;
  56 };
  57
  58 /* kvm attr_group  on vm fd */
  59 #define KVM_S390_VM_MEM_CTRL            0
  60 #define KVM_S390_VM_TOD                 1
  61 #define KVM_S390_VM_CRYPTO              2
  62 #define KVM_S390_VM_CPU_MODEL           3
  63
  64 /* kvm attributes for mem_ctrl */
  65 #define KVM_S390_VM_MEM_ENABLE_CMMA     0
  66 #define KVM_S390_VM_MEM_CLR_CMMA        1
  67 #define KVM_S390_VM_MEM_LIMIT_SIZE      2
  68
  69 /* kvm attributes for KVM_S390_VM_TOD */
  70 #define KVM_S390_VM_TOD_LOW             0
  71 #define KVM_S390_VM_TOD_HIGH            1
  72
  73 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
  74 /* processor related attributes are r/w */
  75 #define KVM_S390_VM_CPU_PROCESSOR       0
  76 struct kvm_s390_vm_cpu_processor {
  77         __u64 cpuid;
  78         __u16 ibc;
  79         __u8  pad[6];
  80         __u64 fac_list[256];
  81 };
  82
  83 /* machine related attributes are r/o */
  84 #define KVM_S390_VM_CPU_MACHINE         1
  85 struct kvm_s390_vm_cpu_machine {
  86         __u64 cpuid;
  87         __u32 ibc;
  88         __u8  pad[4];
  89         __u64 fac_mask[256];
  90         __u64 fac_list[256];
  91 };
  92
  93 /* kvm attributes for crypto */
  94 #define KVM_S390_VM_CRYPTO_ENABLE_AES_KW        0
  95 #define KVM_S390_VM_CRYPTO_ENABLE_DEA_KW        1
  96 #define KVM_S390_VM_CRYPTO_DISABLE_AES_KW       2
  97 #define KVM_S390_VM_CRYPTO_DISABLE_DEA_KW       3
  98
  99 /* for KVM_GET_REGS and KVM_SET_REGS */
 100 struct kvm_regs {
 101         /* general purpose regs for s390 */
 102         __u64 gprs[16];
 103 };
 104
 105 /* for KVM_GET_SREGS and KVM_SET_SREGS */
 106 struct kvm_sregs {
 107         __u32 acrs[16];
 108         __u64 crs[16];
 109 };
 110
 111 /* for KVM_GET_FPU and KVM_SET_FPU */
 112 struct kvm_fpu {
 113         __u32 fpc;
 114         __u64 fprs[16];
 115 };
 116
 117 #define KVM_GUESTDBG_USE_HW_BP          0x00010000
 118
 119 #define KVM_HW_BP                       1
 120 #define KVM_HW_WP_WRITE                 2
 121 #define KVM_SINGLESTEP                  4
 122
 123 struct kvm_debug_exit_arch {
 124         __u64 addr;
 125         __u8 type;
 126         __u8 pad[7]; /* Should be set to 0 */
 127 };
 128
 129 struct kvm_hw_breakpoint {
 130         __u64 addr;
 131         __u64 phys_addr;
 132         __u64 len;
 133         __u8 type;
 134         __u8 pad[7]; /* Should be set to 0 */
 135 };
 136
 137 /* for KVM_SET_GUEST_DEBUG */
 138 struct kvm_guest_debug_arch {
 139         __u32 nr_hw_bp;
 140         __u32 pad; /* Should be set to 0 */
 141         struct kvm_hw_breakpoint *hw_bp;
 142 };
 143
 144 /* for KVM_SYNC_PFAULT and KVM_REG_S390_PFTOKEN */
 145 #define KVM_S390_PFAULT_TOKEN_INVALID   0xffffffffffffffffULL
 146
 147 #define KVM_SYNC_PREFIX (1UL << 0)
 148 #define KVM_SYNC_GPRS   (1UL << 1)
 149 #define KVM_SYNC_ACRS   (1UL << 2)
 150 #define KVM_SYNC_CRS    (1UL << 3)
 151 #define KVM_SYNC_ARCH0  (1UL << 4)
 152 #define KVM_SYNC_PFAULT (1UL << 5)
 153 #define KVM_SYNC_VRS    (1UL << 6)
 154 /* definition of registers in kvm_run */
 155 struct kvm_sync_regs {
 156         __u64 prefix;   /* prefix register */
 157         __u64 gprs[16]; /* general purpose registers */
 158         __u32 acrs[16]; /* access registers */
 159         __u64 crs[16];  /* control registers */
 160         __u64 todpr;    /* tod programmable register [ARCH0] */
 161         __u64 cputm;    /* cpu timer [ARCH0] */
 162         __u64 ckc;      /* clock comparator [ARCH0] */
 163         __u64 pp;       /* program parameter [ARCH0] */
 164         __u64 gbea;     /* guest breaking-event address [ARCH0] */
 165         __u64 pft;      /* pfault token [PFAULT] */
 166         __u64 pfs;      /* pfault select [PFAULT] */
 167         __u64 pfc;      /* pfault compare [PFAULT] */
 168         __u64 vrs[32][2];       /* vector registers */
 169         __u8  reserved[512];    /* for future vector expansion */
 170         __u32 fpc;      /* only valid with vector registers */
 171 };
 172
 173 #define KVM_REG_S390_TODPR      (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
 174 #define KVM_REG_S390_EPOCHDIFF  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
 175 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
 176 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
 177 #define KVM_REG_S390_PFTOKEN    (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
 178 #define KVM_REG_S390_PFCOMPARE  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
 179 #define KVM_REG_S390_PFSELECT   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
 180 #define KVM_REG_S390_PP         (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
 181 #define KVM_REG_S390_GBEA       (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
 182 #endif