summaryrefslogtreecommitdiffstats
path: root/target-arm/machine.c
blob: f66b8dfa1fd72fbdbad41e0fe31da9eaaf89ab89 (plain) (blame)
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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
#include "hw/hw.h"
#include "hw/boards.h"

void cpu_save(QEMUFile *f, void *opaque)
{
    int i;
    CPUARMState *env = (CPUARMState *)opaque;

    for (i = 0; i < 16; i++) {
        qemu_put_be32(f, env->regs[i]);
    }
    qemu_put_be32(f, cpsr_read(env));
    qemu_put_be32(f, env->spsr);
    for (i = 0; i < 6; i++) {
        qemu_put_be32(f, env->banked_spsr[i]);
        qemu_put_be32(f, env->banked_r13[i]);
        qemu_put_be32(f, env->banked_r14[i]);
    }
    for (i = 0; i < 5; i++) {
        qemu_put_be32(f, env->usr_regs[i]);
        qemu_put_be32(f, env->fiq_regs[i]);
    }
    qemu_put_be32(f, env->cp15.c0_cpuid);
    qemu_put_be32(f, env->cp15.c0_cachetype);
    qemu_put_be32(f, env->cp15.c0_cssel);
    qemu_put_be32(f, env->cp15.c1_sys);
    qemu_put_be32(f, env->cp15.c1_coproc);
    qemu_put_be32(f, env->cp15.c1_xscaleauxcr);
    qemu_put_be32(f, env->cp15.c1_scr);
    qemu_put_be32(f, env->cp15.c2_base0);
    qemu_put_be32(f, env->cp15.c2_base1);
    qemu_put_be32(f, env->cp15.c2_control);
    qemu_put_be32(f, env->cp15.c2_mask);
    qemu_put_be32(f, env->cp15.c2_base_mask);
    qemu_put_be32(f, env->cp15.c2_data);
    qemu_put_be32(f, env->cp15.c2_insn);
    qemu_put_be32(f, env->cp15.c3);
    qemu_put_be32(f, env->cp15.c5_insn);
    qemu_put_be32(f, env->cp15.c5_data);
    for (i = 0; i < 8; i++) {
        qemu_put_be32(f, env->cp15.c6_region[i]);
    }
    qemu_put_be32(f, env->cp15.c6_insn);
    qemu_put_be32(f, env->cp15.c6_data);
    qemu_put_be32(f, env->cp15.c7_par);
    qemu_put_be32(f, env->cp15.c9_insn);
    qemu_put_be32(f, env->cp15.c9_data);
    qemu_put_be32(f, env->cp15.c9_pmcr);
    qemu_put_be32(f, env->cp15.c9_pmcnten);
    qemu_put_be32(f, env->cp15.c9_pmovsr);
    qemu_put_be32(f, env->cp15.c9_pmxevtyper);
    qemu_put_be32(f, env->cp15.c9_pmuserenr);
    qemu_put_be32(f, env->cp15.c9_pminten);
    qemu_put_be32(f, env->cp15.c13_fcse);
    qemu_put_be32(f, env->cp15.c13_context);
    qemu_put_be32(f, env->cp15.c13_tls1);
    qemu_put_be32(f, env->cp15.c13_tls2);
    qemu_put_be32(f, env->cp15.c13_tls3);
    qemu_put_be32(f, env->cp15.c15_cpar);
    qemu_put_be32(f, env->cp15.c15_power_control);
    qemu_put_be32(f, env->cp15.c15_diagnostic);
    qemu_put_be32(f, env->cp15.c15_power_diagnostic);

    qemu_put_be32(f, env->features);

    if (arm_feature(env, ARM_FEATURE_VFP)) {
        for (i = 0;  i < 16; i++) {
            CPU_DoubleU u;
            u.d = env->vfp.regs[i];
            qemu_put_be32(f, u.l.upper);
            qemu_put_be32(f, u.l.lower);
        }
        for (i = 0; i < 16; i++) {
            qemu_put_be32(f, env->vfp.xregs[i]);
        }

        /* TODO: Should use proper FPSCR access functions.  */
        qemu_put_be32(f, env->vfp.vec_len);
        qemu_put_be32(f, env->vfp.vec_stride);

        if (arm_feature(env, ARM_FEATURE_VFP3)) {
            for (i = 16;  i < 32; i++) {
                CPU_DoubleU u;
                u.d = env->vfp.regs[i];
                qemu_put_be32(f, u.l.upper);
                qemu_put_be32(f, u.l.lower);
            }
        }
    }

    if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
        for (i = 0; i < 16; i++) {
            qemu_put_be64(f, env->iwmmxt.regs[i]);
        }
        for (i = 0; i < 16; i++) {
            qemu_put_be32(f, env->iwmmxt.cregs[i]);
        }
    }

    if (arm_feature(env, ARM_FEATURE_M)) {
        qemu_put_be32(f, env->v7m.other_sp);
        qemu_put_be32(f, env->v7m.vecbase);
        qemu_put_be32(f, env->v7m.basepri);
        qemu_put_be32(f, env->v7m.control);
        qemu_put_be32(f, env->v7m.current_sp);
        qemu_put_be32(f, env->v7m.exception);
    }

    if (arm_feature(env, ARM_FEATURE_THUMB2EE)) {
        qemu_put_be32(f, env->teecr);
        qemu_put_be32(f, env->teehbr);
    }
}

int cpu_load(QEMUFile *f, void *opaque, int version_id)
{
    CPUARMState *env = (CPUARMState *)opaque;
    int i;
    uint32_t val;

    if (version_id != CPU_SAVE_VERSION)
        return -EINVAL;

    for (i = 0; i < 16; i++) {
        env->regs[i] = qemu_get_be32(f);
    }
    val = qemu_get_be32(f);
    /* Avoid mode switch when restoring CPSR.  */
    env->uncached_cpsr = val & CPSR_M;
    cpsr_write(env, val, 0xffffffff);
    env->spsr = qemu_get_be32(f);
    for (i = 0; i < 6; i++) {
        env->banked_spsr[i] = qemu_get_be32(f);
        env->banked_r13[i] = qemu_get_be32(f);
        env->banked_r14[i] = qemu_get_be32(f);
    }
    for (i = 0; i < 5; i++) {
        env->usr_regs[i] = qemu_get_be32(f);
        env->fiq_regs[i] = qemu_get_be32(f);
    }
    env->cp15.c0_cpuid = qemu_get_be32(f);
    env->cp15.c0_cachetype = qemu_get_be32(f);
    env->cp15.c0_cssel = qemu_get_be32(f);
    env->cp15.c1_sys = qemu_get_be32(f);
    env->cp15.c1_coproc = qemu_get_be32(f);
    env->cp15.c1_xscaleauxcr = qemu_get_be32(f);
    env->cp15.c1_scr = qemu_get_be32(f);
    env->cp15.c2_base0 = qemu_get_be32(f);
    env->cp15.c2_base1 = qemu_get_be32(f);
    env->cp15.c2_control = qemu_get_be32(f);
    env->cp15.c2_mask = qemu_get_be32(f);
    env->cp15.c2_base_mask = qemu_get_be32(f);
    env->cp15.c2_data = qemu_get_be32(f);
    env->cp15.c2_insn = qemu_get_be32(f);
    env->cp15.c3 = qemu_get_be32(f);
    env->cp15.c5_insn = qemu_get_be32(f);
    env->cp15.c5_data = qemu_get_be32(f);
    for (i = 0; i < 8; i++) {
        env->cp15.c6_region[i] = qemu_get_be32(f);
    }
    env->cp15.c6_insn = qemu_get_be32(f);
    env->cp15.c6_data = qemu_get_be32(f);
    env->cp15.c7_par = qemu_get_be32(f);
    env->cp15.c9_insn = qemu_get_be32(f);
    env->cp15.c9_data = qemu_get_be32(f);
    env->cp15.c9_pmcr = qemu_get_be32(f);
    env->cp15.c9_pmcnten = qemu_get_be32(f);
    env->cp15.c9_pmovsr = qemu_get_be32(f);
    env->cp15.c9_pmxevtyper = qemu_get_be32(f);
    env->cp15.c9_pmuserenr = qemu_get_be32(f);
    env->cp15.c9_pminten = qemu_get_be32(f);
    env->cp15.c13_fcse = qemu_get_be32(f);
    env->cp15.c13_context = qemu_get_be32(f);
    env->cp15.c13_tls1 = qemu_get_be32(f);
    env->cp15.c13_tls2 = qemu_get_be32(f);
    env->cp15.c13_tls3 = qemu_get_be32(f);
    env->cp15.c15_cpar = qemu_get_be32(f);
    env->cp15.c15_power_control = qemu_get_be32(f);
    env->cp15.c15_diagnostic = qemu_get_be32(f);
    env->cp15.c15_power_diagnostic = qemu_get_be32(f);

    env->features = qemu_get_be32(f);

    if (arm_feature(env, ARM_FEATURE_VFP)) {
        for (i = 0;  i < 16; i++) {
            CPU_DoubleU u;
            u.l.upper = qemu_get_be32(f);
            u.l.lower = qemu_get_be32(f);
            env->vfp.regs[i] = u.d;
        }
        for (i = 0; i < 16; i++) {
            env->vfp.xregs[i] = qemu_get_be32(f);
        }

        /* TODO: Should use proper FPSCR access functions.  */
        env->vfp.vec_len = qemu_get_be32(f);
        env->vfp.vec_stride = qemu_get_be32(f);

        if (arm_feature(env, ARM_FEATURE_VFP3)) {
            for (i = 16;  i < 32; i++) {
                CPU_DoubleU u;
                u.l.upper = qemu_get_be32(f);
                u.l.lower = qemu_get_be32(f);
                env->vfp.regs[i] = u.d;
            }
        }
    }

    if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
        for (i = 0; i < 16; i++) {
            env->iwmmxt.regs[i] = qemu_get_be64(f);
        }
        for (i = 0; i < 16; i++) {
            env->iwmmxt.cregs[i] = qemu_get_be32(f);
        }
    }

    if (arm_feature(env, ARM_FEATURE_M)) {
        env->v7m.other_sp = qemu_get_be32(f);
        env->v7m.vecbase = qemu_get_be32(f);
        env->v7m.basepri = qemu_get_be32(f);
        env->v7m.control = qemu_get_be32(f);
        env->v7m.current_sp = qemu_get_be32(f);
        env->v7m.exception = qemu_get_be32(f);
    }

    if (arm_feature(env, ARM_FEATURE_THUMB2EE)) {
        env->teecr = qemu_get_be32(f);
        env->teehbr = qemu_get_be32(f);
    }

    return 0;
}