target-s390x/machine.c

   1 /*
   2  * S390x machine definitions and functions
   3  *
   4  * Copyright IBM Corp. 2014
   5  *
   6  * Authors:
   7  *   Thomas Huth <thuth@linux.vnet.ibm.com>
   8  *   Christian Borntraeger <borntraeger@de.ibm.com>
   9  *   Jason J. Herne <jjherne@us.ibm.com>
  10  *
  11  * This work is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published
  13  * by the Free Software Foundation; either version 2 of the License,
  14  * or (at your option) any later version.
  15  */
  16
  17 #include "hw/hw.h"
  18 #include "cpu.h"
  19 #include "sysemu/kvm.h"
  20
  21 static int cpu_post_load(void *opaque, int version_id)
  22 {
  23     S390CPU *cpu = opaque;
  24
  25     /*
  26      * As the cpu state is pushed to kvm via kvm_set_mp_state rather
  27      * than via cpu_synchronize_state, we need update kvm here.
  28      */
  29     if (kvm_enabled()) {
  30         kvm_s390_set_cpu_state(cpu, cpu->env.cpu_state);
  31         return kvm_s390_vcpu_interrupt_post_load(cpu);
  32     }
  33
  34     return 0;
  35 }
  36 static void cpu_pre_save(void *opaque)
  37 {
  38     S390CPU *cpu = opaque;
  39
  40     if (kvm_enabled()) {
  41         kvm_s390_vcpu_interrupt_pre_save(cpu);
  42     }
  43 }
  44
  45 const VMStateDescription vmstate_fpu = {
  46     .name = "cpu/fpu",
  47     .version_id = 1,
  48     .minimum_version_id = 1,
  49     .fields = (VMStateField[]) {
  50         VMSTATE_UINT64(env.fregs[0].ll, S390CPU),
  51         VMSTATE_UINT64(env.fregs[1].ll, S390CPU),
  52         VMSTATE_UINT64(env.fregs[2].ll, S390CPU),
  53         VMSTATE_UINT64(env.fregs[3].ll, S390CPU),
  54         VMSTATE_UINT64(env.fregs[4].ll, S390CPU),
  55         VMSTATE_UINT64(env.fregs[5].ll, S390CPU),
  56         VMSTATE_UINT64(env.fregs[6].ll, S390CPU),
  57         VMSTATE_UINT64(env.fregs[7].ll, S390CPU),
  58         VMSTATE_UINT64(env.fregs[8].ll, S390CPU),
  59         VMSTATE_UINT64(env.fregs[9].ll, S390CPU),
  60         VMSTATE_UINT64(env.fregs[10].ll, S390CPU),
  61         VMSTATE_UINT64(env.fregs[11].ll, S390CPU),
  62         VMSTATE_UINT64(env.fregs[12].ll, S390CPU),
  63         VMSTATE_UINT64(env.fregs[13].ll, S390CPU),
  64         VMSTATE_UINT64(env.fregs[14].ll, S390CPU),
  65         VMSTATE_UINT64(env.fregs[15].ll, S390CPU),
  66         VMSTATE_UINT32(env.fpc, S390CPU),
  67         VMSTATE_END_OF_LIST()
  68     }
  69 };
  70
  71 static inline bool fpu_needed(void *opaque)
  72 {
  73     return true;
  74 }
  75
  76 const VMStateDescription vmstate_s390_cpu = {
  77     .name = "cpu",
  78     .post_load = cpu_post_load,
  79     .pre_save = cpu_pre_save,
  80     .version_id = 4,
  81     .minimum_version_id = 3,
  82     .fields      = (VMStateField[]) {
  83         VMSTATE_UINT64_ARRAY(env.regs, S390CPU, 16),
  84         VMSTATE_UINT64(env.psw.mask, S390CPU),
  85         VMSTATE_UINT64(env.psw.addr, S390CPU),
  86         VMSTATE_UINT64(env.psa, S390CPU),
  87         VMSTATE_UINT32(env.todpr, S390CPU),
  88         VMSTATE_UINT64(env.pfault_token, S390CPU),
  89         VMSTATE_UINT64(env.pfault_compare, S390CPU),
  90         VMSTATE_UINT64(env.pfault_select, S390CPU),
  91         VMSTATE_UINT64(env.cputm, S390CPU),
  92         VMSTATE_UINT64(env.ckc, S390CPU),
  93         VMSTATE_UINT64(env.gbea, S390CPU),
  94         VMSTATE_UINT64(env.pp, S390CPU),
  95         VMSTATE_UINT32_ARRAY(env.aregs, S390CPU, 16),
  96         VMSTATE_UINT64_ARRAY(env.cregs, S390CPU, 16),
  97         VMSTATE_UINT8(env.cpu_state, S390CPU),
  98         VMSTATE_UINT8(env.sigp_order, S390CPU),
  99         VMSTATE_UINT32_V(irqstate_saved_size, S390CPU, 4),
 100         VMSTATE_VBUFFER_UINT32(irqstate, S390CPU, 4, NULL, 0,
 101                                irqstate_saved_size),
 102         VMSTATE_END_OF_LIST()
 103      },
 104     .subsections = (VMStateSubsection[]) {
 105         {
 106             .vmsd = &vmstate_fpu,
 107             .needed = fpu_needed,
 108         } , {
 109             /* empty */
 110         }
 111     },
 112 };