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
  19 /* Device control API: s390-specific devices */
  20 #define KVM_DEV_FLIC_GET_ALL_IRQS       1
  21 #define KVM_DEV_FLIC_ENQUEUE            2
  22 #define KVM_DEV_FLIC_CLEAR_IRQS         3
  23 #define KVM_DEV_FLIC_APF_ENABLE         4
  24 #define KVM_DEV_FLIC_APF_DISABLE_WAIT   5
  25 /*
  26  * We can have up to 4*64k pending subchannels + 8 adapter interrupts,
  27  * as well as up  to ASYNC_PF_PER_VCPU*KVM_MAX_VCPUS pfault done interrupts.
  28  * There are also sclp and machine checks. This gives us
  29  * sizeof(kvm_s390_irq)*(4*65536+8+64*64+1+1) = 72 * 266250 = 19170000
  30  * Lets round up to 8192 pages.
  31  */
  32 #define KVM_S390_MAX_FLOAT_IRQS 266250
  33 #define KVM_S390_FLIC_MAX_BUFFER        0x2000000
  34
  35 /* for KVM_GET_REGS and KVM_SET_REGS */
  36 struct kvm_regs {
  37         /* general purpose regs for s390 */
  38         __u64 gprs[16];
  39 };
  40
  41 /* for KVM_GET_SREGS and KVM_SET_SREGS */
  42 struct kvm_sregs {
  43         __u32 acrs[16];
  44         __u64 crs[16];
  45 };
  46
  47 /* for KVM_GET_FPU and KVM_SET_FPU */
  48 struct kvm_fpu {
  49         __u32 fpc;
  50         __u64 fprs[16];
  51 };
  52
  53 struct kvm_debug_exit_arch {
  54 };
  55
  56 /* for KVM_SET_GUEST_DEBUG */
  57 struct kvm_guest_debug_arch {
  58 };
  59
  60 #define KVM_SYNC_PREFIX (1UL << 0)
  61 #define KVM_SYNC_GPRS   (1UL << 1)
  62 #define KVM_SYNC_ACRS   (1UL << 2)
  63 #define KVM_SYNC_CRS    (1UL << 3)
  64 /* definition of registers in kvm_run */
  65 struct kvm_sync_regs {
  66         __u64 prefix;   /* prefix register */
  67         __u64 gprs[16]; /* general purpose registers */
  68         __u32 acrs[16]; /* access registers */
  69         __u64 crs[16];  /* control registers */
  70 };
  71
  72 #define KVM_REG_S390_TODPR      (KVM_REG_S390 | KVM_REG_SIZE_U32 | 0x1)
  73 #define KVM_REG_S390_EPOCHDIFF  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x2)
  74 #define KVM_REG_S390_CPU_TIMER  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x3)
  75 #define KVM_REG_S390_CLOCK_COMP (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x4)
  76 #define KVM_REG_S390_PFTOKEN    (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x5)
  77 #define KVM_REG_S390_PFCOMPARE  (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x6)
  78 #define KVM_REG_S390_PFSELECT   (KVM_REG_S390 | KVM_REG_SIZE_U64 | 0x7)
  79 #endif