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
  61 /* kvm attributes for mem_ctrl */
  62 #define KVM_S390_VM_MEM_ENABLE_CMMA     0
  63 #define KVM_S390_VM_MEM_CLR_CMMA        1
  64
  65 /* for KVM_GET_REGS and KVM_SET_REGS */
  66 struct kvm_regs {
  67         /* general purpose regs for s390 */
  68         __u64 gprs[16];
  69 };
  70
  71 /* for KVM_GET_SREGS and KVM_SET_SREGS */
  72 struct kvm_sregs {
  73         __u32 acrs[16];
  74         __u64 crs[16];
  75 };
  76
  77 /* for KVM_GET_FPU and KVM_SET_FPU */
  78 struct kvm_fpu {
  79         __u32 fpc;
  80         __u64 fprs[16];
  81 };
  82
  83 #define KVM_GUESTDBG_USE_HW_BP          0x00010000
  84
  85 #define KVM_HW_BP                       1
  86 #define KVM_HW_WP_WRITE                 2
  87 #define KVM_SINGLESTEP                  4
  88
  89 struct kvm_debug_exit_arch {
  90         __u64 addr;
  91         __u8 type;
  92         __u8 pad[7]; /* Should be set to 0 */
  93 };
  94
  95 struct kvm_hw_breakpoint {
  96         __u64 addr;
  97         __u64 phys_addr;
  98         __u64 len;
  99         __u8 type;
 100         __u8 pad[7]; /* Should be set to 0 */
 101 };
 102
 103 /* for KVM_SET_GUEST_DEBUG */
 104 struct kvm_guest_debug_arch {
 105         __u32 nr_hw_bp;
 106         __u32 pad; /* Should be set to 0 */
 107         struct kvm_hw_breakpoint *hw_bp;
 108 };
 109
 110 #define KVM_SYNC_PREFIX (1UL << 0)
 111 #define KVM_SYNC_GPRS   (1UL << 1)
 112 #define KVM_SYNC_ACRS   (1UL << 2)
 113 #define KVM_SYNC_CRS    (1UL << 3)
 114 /* definition of registers in kvm_run */
 115 struct kvm_sync_regs {
 116         __u64 prefix;   /* prefix register */
 117         __u64 gprs[16]; /* general purpose registers */
 118         __u32 acrs[16]; /* access registers */
 119         __u64 crs[16];  /* control registers */
 120 };
 121
 122 #define KVM_REG_S390_TODPR      (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
 123 #define KVM_REG_S390_EPOCHDIFF  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
 124 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
 125 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
 126 #define KVM_REG_S390_PFTOKEN    (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
 127 #define KVM_REG_S390_PFCOMPARE  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
 128 #define KVM_REG_S390_PFSELECT   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
 129 #define KVM_REG_S390_PP         (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x8)
 130 #define KVM_REG_S390_GBEA       (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x9)
 131 #endif