target/openrisc/machine.c

   1 /*
   2  * OpenRISC Machine
   3  *
   4  * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "qemu-common.h"
  22 #include "cpu.h"
  23 #include "hw/hw.h"
  24 #include "hw/boards.h"
  25 #include "migration/cpu.h"
  26
  27 static int get_sr(QEMUFile *f, void *opaque, size_t size, VMStateField *field)
  28 {
  29     CPUOpenRISCState *env = opaque;
  30     cpu_set_sr(env, qemu_get_be32(f));
  31     return 0;
  32 }
  33
  34 static int put_sr(QEMUFile *f, void *opaque, size_t size,
  35                   VMStateField *field, QJSON *vmdesc)
  36 {
  37     CPUOpenRISCState *env = opaque;
  38     qemu_put_be32(f, cpu_get_sr(env));
  39     return 0;
  40 }
  41
  42 static const VMStateInfo vmstate_sr = {
  43     .name = "sr",
  44     .get = get_sr,
  45     .put = put_sr,
  46 };
  47
  48 static const VMStateDescription vmstate_env = {
  49     .name = "env",
  50     .version_id = 4,
  51     .minimum_version_id = 4,
  52     .fields = (VMStateField[]) {
  53         VMSTATE_UINTTL_ARRAY(gpr, CPUOpenRISCState, 32),
  54         VMSTATE_UINTTL(pc, CPUOpenRISCState),
  55         VMSTATE_UINTTL(ppc, CPUOpenRISCState),
  56         VMSTATE_UINTTL(jmp_pc, CPUOpenRISCState),
  57         VMSTATE_UINTTL(lock_addr, CPUOpenRISCState),
  58         VMSTATE_UINTTL(lock_value, CPUOpenRISCState),
  59         VMSTATE_UINTTL(epcr, CPUOpenRISCState),
  60         VMSTATE_UINTTL(eear, CPUOpenRISCState),
  61
  62         /* Save the architecture value of the SR, not the internally
  63            expanded version.  Since this architecture value does not
  64            exist in memory to be stored, this requires a but of hoop
  65            jumping.  We want OFFSET=0 so that we effectively pass ENV
  66            to the helper functions, and we need to fill in the name by
  67            hand since there's no field of that name.  */
  68         {
  69             .name = "sr",
  70             .version_id = 0,
  71             .size = sizeof(uint32_t),
  72             .info = &vmstate_sr,
  73             .flags = VMS_SINGLE,
  74             .offset = 0
  75         },
  76
  77         VMSTATE_UINT32(vr, CPUOpenRISCState),
  78         VMSTATE_UINT32(upr, CPUOpenRISCState),
  79         VMSTATE_UINT32(cpucfgr, CPUOpenRISCState),
  80         VMSTATE_UINT32(dmmucfgr, CPUOpenRISCState),
  81         VMSTATE_UINT32(immucfgr, CPUOpenRISCState),
  82         VMSTATE_UINT32(esr, CPUOpenRISCState),
  83         VMSTATE_UINT32(fpcsr, CPUOpenRISCState),
  84         VMSTATE_UINT64(mac, CPUOpenRISCState),
  85         VMSTATE_END_OF_LIST()
  86     }
  87 };
  88
  89 const VMStateDescription vmstate_openrisc_cpu = {
  90     .name = "cpu",
  91     .version_id = 1,
  92     .minimum_version_id = 1,
  93     .fields = (VMStateField[]) {
  94         VMSTATE_CPU(),
  95         VMSTATE_STRUCT(env, OpenRISCCPU, 1, vmstate_env, CPUOpenRISCState),
  96         VMSTATE_END_OF_LIST()
  97     }
  98 };