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 2.1 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 const VMStateDescription vmstate_tlb_entry = {
  28     .name = "tlb_entry",
  29     .version_id = 1,
  30     .minimum_version_id = 1,
  31     .minimum_version_id_old = 1,
  32     .fields = (VMStateField[]) {
  33         VMSTATE_UINTTL(mr, OpenRISCTLBEntry),
  34         VMSTATE_UINTTL(tr, OpenRISCTLBEntry),
  35         VMSTATE_END_OF_LIST()
  36     }
  37 };
  38
  39 static const VMStateDescription vmstate_cpu_tlb = {
  40     .name = "cpu_tlb",
  41     .version_id = 2,
  42     .minimum_version_id = 2,
  43     .fields = (VMStateField[]) {
  44         VMSTATE_STRUCT_ARRAY(itlb, CPUOpenRISCTLBContext, TLB_SIZE, 0,
  45                              vmstate_tlb_entry, OpenRISCTLBEntry),
  46         VMSTATE_STRUCT_ARRAY(dtlb, CPUOpenRISCTLBContext, TLB_SIZE, 0,
  47                              vmstate_tlb_entry, OpenRISCTLBEntry),
  48         VMSTATE_END_OF_LIST()
  49     }
  50 };
  51
  52 static int get_sr(QEMUFile *f, void *opaque, size_t size,
  53                   const VMStateField *field)
  54 {
  55     CPUOpenRISCState *env = opaque;
  56     cpu_set_sr(env, qemu_get_be32(f));
  57     return 0;
  58 }
  59
  60 static int put_sr(QEMUFile *f, void *opaque, size_t size,
  61                   const VMStateField *field, QJSON *vmdesc)
  62 {
  63     CPUOpenRISCState *env = opaque;
  64     qemu_put_be32(f, cpu_get_sr(env));
  65     return 0;
  66 }
  67
  68 static const VMStateInfo vmstate_sr = {
  69     .name = "sr",
  70     .get = get_sr,
  71     .put = put_sr,
  72 };
  73
  74 static const VMStateDescription vmstate_env = {
  75     .name = "env",
  76     .version_id = 6,
  77     .minimum_version_id = 6,
  78     .fields = (VMStateField[]) {
  79         VMSTATE_UINTTL_2DARRAY(shadow_gpr, CPUOpenRISCState, 16, 32),
  80         VMSTATE_UINTTL(pc, CPUOpenRISCState),
  81         VMSTATE_UINTTL(ppc, CPUOpenRISCState),
  82         VMSTATE_UINTTL(jmp_pc, CPUOpenRISCState),
  83         VMSTATE_UINTTL(lock_addr, CPUOpenRISCState),
  84         VMSTATE_UINTTL(lock_value, CPUOpenRISCState),
  85         VMSTATE_UINTTL(epcr, CPUOpenRISCState),
  86         VMSTATE_UINTTL(eear, CPUOpenRISCState),
  87
  88         /* Save the architecture value of the SR, not the internally
  89            expanded version.  Since this architecture value does not
  90            exist in memory to be stored, this requires a but of hoop
  91            jumping.  We want OFFSET=0 so that we effectively pass ENV
  92            to the helper functions, and we need to fill in the name by
  93            hand since there's no field of that name.  */
  94         {
  95             .name = "sr",
  96             .version_id = 0,
  97             .size = sizeof(uint32_t),
  98             .info = &vmstate_sr,
  99             .flags = VMS_SINGLE,
 100             .offset = 0
 101         },
 102
 103         VMSTATE_UINT32(vr, CPUOpenRISCState),
 104         VMSTATE_UINT32(upr, CPUOpenRISCState),
 105         VMSTATE_UINT32(cpucfgr, CPUOpenRISCState),
 106         VMSTATE_UINT32(dmmucfgr, CPUOpenRISCState),
 107         VMSTATE_UINT32(immucfgr, CPUOpenRISCState),
 108         VMSTATE_UINT32(evbar, CPUOpenRISCState),
 109         VMSTATE_UINT32(pmr, CPUOpenRISCState),
 110         VMSTATE_UINT32(esr, CPUOpenRISCState),
 111         VMSTATE_UINT32(fpcsr, CPUOpenRISCState),
 112         VMSTATE_UINT64(mac, CPUOpenRISCState),
 113
 114         VMSTATE_STRUCT(tlb, CPUOpenRISCState, 1,
 115                        vmstate_cpu_tlb, CPUOpenRISCTLBContext),
 116
 117         VMSTATE_TIMER_PTR(timer, CPUOpenRISCState),
 118         VMSTATE_UINT32(ttmr, CPUOpenRISCState),
 119
 120         VMSTATE_UINT32(picmr, CPUOpenRISCState),
 121         VMSTATE_UINT32(picsr, CPUOpenRISCState),
 122
 123         VMSTATE_END_OF_LIST()
 124     }
 125 };
 126
 127 const VMStateDescription vmstate_openrisc_cpu = {
 128     .name = "cpu",
 129     .version_id = 1,
 130     .minimum_version_id = 1,
 131     .fields = (VMStateField[]) {
 132         VMSTATE_CPU(),
 133         VMSTATE_STRUCT(env, OpenRISCCPU, 1, vmstate_env, CPUOpenRISCState),
 134         VMSTATE_END_OF_LIST()
 135     }
 136 };