aboutsummaryrefslogtreecommitdiff
path: root/target/openrisc/machine.c
blob: 99c0470a44d3947f28fdb4d28a4a08f5916ed5b1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/*
 * OpenRISC Machine
 *
 * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#include "qemu/osdep.h"
#include "cpu.h"
#include "hw/boards.h"
#include "migration/cpu.h"

static const VMStateDescription vmstate_tlb_entry = {
    .name = "tlb_entry",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields = (VMStateField[]) {
        VMSTATE_UINTTL(mr, OpenRISCTLBEntry),
        VMSTATE_UINTTL(tr, OpenRISCTLBEntry),
        VMSTATE_END_OF_LIST()
    }
};

static const VMStateDescription vmstate_cpu_tlb = {
    .name = "cpu_tlb",
    .version_id = 2,
    .minimum_version_id = 2,
    .fields = (VMStateField[]) {
        VMSTATE_STRUCT_ARRAY(itlb, CPUOpenRISCTLBContext, TLB_SIZE, 0,
                             vmstate_tlb_entry, OpenRISCTLBEntry),
        VMSTATE_STRUCT_ARRAY(dtlb, CPUOpenRISCTLBContext, TLB_SIZE, 0,
                             vmstate_tlb_entry, OpenRISCTLBEntry),
        VMSTATE_END_OF_LIST()
    }
};

static int get_sr(QEMUFile *f, void *opaque, size_t size,
                  const VMStateField *field)
{
    CPUOpenRISCState *env = opaque;
    cpu_set_sr(env, qemu_get_be32(f));
    return 0;
}

static int put_sr(QEMUFile *f, void *opaque, size_t size,
                  const VMStateField *field, QJSON *vmdesc)
{
    CPUOpenRISCState *env = opaque;
    qemu_put_be32(f, cpu_get_sr(env));
    return 0;
}

static const VMStateInfo vmstate_sr = {
    .name = "sr",
    .get = get_sr,
    .put = put_sr,
};

static const VMStateDescription vmstate_env = {
    .name = "env",
    .version_id = 6,
    .minimum_version_id = 6,
    .fields = (VMStateField[]) {
        VMSTATE_UINTTL_2DARRAY(shadow_gpr, CPUOpenRISCState, 16, 32),
        VMSTATE_UINTTL(pc, CPUOpenRISCState),
        VMSTATE_UINTTL(ppc, CPUOpenRISCState),
        VMSTATE_UINTTL(jmp_pc, CPUOpenRISCState),
        VMSTATE_UINTTL(lock_addr, CPUOpenRISCState),
        VMSTATE_UINTTL(lock_value, CPUOpenRISCState),
        VMSTATE_UINTTL(epcr, CPUOpenRISCState),
        VMSTATE_UINTTL(eear, CPUOpenRISCState),

        /* Save the architecture value of the SR, not the internally
           expanded version.  Since this architecture value does not
           exist in memory to be stored, this requires a but of hoop
           jumping.  We want OFFSET=0 so that we effectively pass ENV
           to the helper functions, and we need to fill in the name by
           hand since there's no field of that name.  */
        {
            .name = "sr",
            .version_id = 0,
            .size = sizeof(uint32_t),
            .info = &vmstate_sr,
            .flags = VMS_SINGLE,
            .offset = 0
        },

        VMSTATE_UINT32(vr, CPUOpenRISCState),
        VMSTATE_UINT32(upr, CPUOpenRISCState),
        VMSTATE_UINT32(cpucfgr, CPUOpenRISCState),
        VMSTATE_UINT32(dmmucfgr, CPUOpenRISCState),
        VMSTATE_UINT32(immucfgr, CPUOpenRISCState),
        VMSTATE_UINT32(evbar, CPUOpenRISCState),
        VMSTATE_UINT32(pmr, CPUOpenRISCState),
        VMSTATE_UINT32(esr, CPUOpenRISCState),
        VMSTATE_UINT32(fpcsr, CPUOpenRISCState),
        VMSTATE_UINT64(mac, CPUOpenRISCState),

        VMSTATE_STRUCT(tlb, CPUOpenRISCState, 1,
                       vmstate_cpu_tlb, CPUOpenRISCTLBContext),

        VMSTATE_TIMER_PTR(timer, CPUOpenRISCState),
        VMSTATE_UINT32(ttmr, CPUOpenRISCState),

        VMSTATE_UINT32(picmr, CPUOpenRISCState),
        VMSTATE_UINT32(picsr, CPUOpenRISCState),

        VMSTATE_END_OF_LIST()
    }
};

const VMStateDescription vmstate_openrisc_cpu = {
    .name = "cpu",
    .version_id = 1,
    .minimum_version_id = 1,
    .fields = (VMStateField[]) {
        VMSTATE_CPU(),
        VMSTATE_STRUCT(env, OpenRISCCPU, 1, vmstate_env, CPUOpenRISCState),
        VMSTATE_END_OF_LIST()
    }
};