4 static bool vfp_needed(void *opaque
)
7 CPUARMState
*env
= &cpu
->env
;
9 return arm_feature(env
, ARM_FEATURE_VFP
);
12 static int get_fpscr(QEMUFile
*f
, void *opaque
, size_t size
)
15 CPUARMState
*env
= &cpu
->env
;
16 uint32_t val
= qemu_get_be32(f
);
18 vfp_set_fpscr(env
, val
);
22 static void put_fpscr(QEMUFile
*f
, void *opaque
, size_t size
)
25 CPUARMState
*env
= &cpu
->env
;
27 qemu_put_be32(f
, vfp_get_fpscr(env
));
30 static const VMStateInfo vmstate_fpscr
= {
36 static const VMStateDescription vmstate_vfp
= {
39 .minimum_version_id
= 2,
40 .minimum_version_id_old
= 2,
41 .fields
= (VMStateField
[]) {
42 VMSTATE_FLOAT64_ARRAY(env
.vfp
.regs
, ARMCPU
, 32),
43 /* The xregs array is a little awkward because element 1 (FPSCR)
44 * requires a specific accessor, so we have to split it up in
47 VMSTATE_UINT32(env
.vfp
.xregs
[0], ARMCPU
),
48 VMSTATE_UINT32_SUB_ARRAY(env
.vfp
.xregs
, ARMCPU
, 2, 14),
52 .size
= sizeof(uint32_t),
53 .info
= &vmstate_fpscr
,
61 static bool iwmmxt_needed(void *opaque
)
64 CPUARMState
*env
= &cpu
->env
;
66 return arm_feature(env
, ARM_FEATURE_IWMMXT
);
69 static const VMStateDescription vmstate_iwmmxt
= {
72 .minimum_version_id
= 1,
73 .minimum_version_id_old
= 1,
74 .fields
= (VMStateField
[]) {
75 VMSTATE_UINT64_ARRAY(env
.iwmmxt
.regs
, ARMCPU
, 16),
76 VMSTATE_UINT32_ARRAY(env
.iwmmxt
.cregs
, ARMCPU
, 16),
81 static bool m_needed(void *opaque
)
84 CPUARMState
*env
= &cpu
->env
;
86 return arm_feature(env
, ARM_FEATURE_M
);
89 const VMStateDescription vmstate_m
= {
92 .minimum_version_id
= 1,
93 .minimum_version_id_old
= 1,
94 .fields
= (VMStateField
[]) {
95 VMSTATE_UINT32(env
.v7m
.other_sp
, ARMCPU
),
96 VMSTATE_UINT32(env
.v7m
.vecbase
, ARMCPU
),
97 VMSTATE_UINT32(env
.v7m
.basepri
, ARMCPU
),
98 VMSTATE_UINT32(env
.v7m
.control
, ARMCPU
),
99 VMSTATE_INT32(env
.v7m
.current_sp
, ARMCPU
),
100 VMSTATE_INT32(env
.v7m
.exception
, ARMCPU
),
101 VMSTATE_END_OF_LIST()
105 static bool thumb2ee_needed(void *opaque
)
107 ARMCPU
*cpu
= opaque
;
108 CPUARMState
*env
= &cpu
->env
;
110 return arm_feature(env
, ARM_FEATURE_THUMB2EE
);
113 static const VMStateDescription vmstate_thumb2ee
= {
114 .name
= "cpu/thumb2ee",
116 .minimum_version_id
= 1,
117 .minimum_version_id_old
= 1,
118 .fields
= (VMStateField
[]) {
119 VMSTATE_UINT32(env
.teecr
, ARMCPU
),
120 VMSTATE_UINT32(env
.teehbr
, ARMCPU
),
121 VMSTATE_END_OF_LIST()
125 static int get_cpsr(QEMUFile
*f
, void *opaque
, size_t size
)
127 ARMCPU
*cpu
= opaque
;
128 CPUARMState
*env
= &cpu
->env
;
129 uint32_t val
= qemu_get_be32(f
);
131 /* Avoid mode switch when restoring CPSR */
132 env
->uncached_cpsr
= val
& CPSR_M
;
133 cpsr_write(env
, val
, 0xffffffff);
137 static void put_cpsr(QEMUFile
*f
, void *opaque
, size_t size
)
139 ARMCPU
*cpu
= opaque
;
140 CPUARMState
*env
= &cpu
->env
;
142 qemu_put_be32(f
, cpsr_read(env
));
145 static const VMStateInfo vmstate_cpsr
= {
151 static void cpu_pre_save(void *opaque
)
153 ARMCPU
*cpu
= opaque
;
155 if (!write_cpustate_to_list(cpu
)) {
156 /* This should never fail. */
160 cpu
->cpreg_vmstate_array_len
= cpu
->cpreg_array_len
;
161 memcpy(cpu
->cpreg_vmstate_indexes
, cpu
->cpreg_indexes
,
162 cpu
->cpreg_array_len
* sizeof(uint64_t));
163 memcpy(cpu
->cpreg_vmstate_values
, cpu
->cpreg_values
,
164 cpu
->cpreg_array_len
* sizeof(uint64_t));
167 static int cpu_post_load(void *opaque
, int version_id
)
169 ARMCPU
*cpu
= opaque
;
172 /* Update the values list from the incoming migration data.
173 * Anything in the incoming data which we don't know about is
174 * a migration failure; anything we know about but the incoming
175 * data doesn't specify retains its current (reset) value.
176 * The indexes list remains untouched -- we only inspect the
177 * incoming migration index list so we can match the values array
178 * entries with the right slots in our own values array.
181 for (i
= 0, v
= 0; i
< cpu
->cpreg_array_len
182 && v
< cpu
->cpreg_vmstate_array_len
; i
++) {
183 if (cpu
->cpreg_vmstate_indexes
[v
] > cpu
->cpreg_indexes
[i
]) {
184 /* register in our list but not incoming : skip it */
187 if (cpu
->cpreg_vmstate_indexes
[v
] < cpu
->cpreg_indexes
[i
]) {
188 /* register in their list but not ours: fail migration */
191 /* matching register, copy the value over */
192 cpu
->cpreg_values
[i
] = cpu
->cpreg_vmstate_values
[v
];
196 if (!write_list_to_cpustate(cpu
)) {
203 const VMStateDescription vmstate_arm_cpu
= {
206 .minimum_version_id
= 12,
207 .minimum_version_id_old
= 12,
208 .pre_save
= cpu_pre_save
,
209 .post_load
= cpu_post_load
,
210 .fields
= (VMStateField
[]) {
211 VMSTATE_UINT32_ARRAY(env
.regs
, ARMCPU
, 16),
215 .size
= sizeof(uint32_t),
216 .info
= &vmstate_cpsr
,
220 VMSTATE_UINT32(env
.spsr
, ARMCPU
),
221 VMSTATE_UINT32_ARRAY(env
.banked_spsr
, ARMCPU
, 6),
222 VMSTATE_UINT32_ARRAY(env
.banked_r13
, ARMCPU
, 6),
223 VMSTATE_UINT32_ARRAY(env
.banked_r14
, ARMCPU
, 6),
224 VMSTATE_UINT32_ARRAY(env
.usr_regs
, ARMCPU
, 5),
225 VMSTATE_UINT32_ARRAY(env
.fiq_regs
, ARMCPU
, 5),
226 /* The length-check must come before the arrays to avoid
227 * incoming data possibly overflowing the array.
229 VMSTATE_INT32_LE(cpreg_vmstate_array_len
, ARMCPU
),
230 VMSTATE_VARRAY_INT32(cpreg_vmstate_indexes
, ARMCPU
,
231 cpreg_vmstate_array_len
,
232 0, vmstate_info_uint64
, uint64_t),
233 VMSTATE_VARRAY_INT32(cpreg_vmstate_values
, ARMCPU
,
234 cpreg_vmstate_array_len
,
235 0, vmstate_info_uint64
, uint64_t),
236 VMSTATE_UINT32(env
.exclusive_addr
, ARMCPU
),
237 VMSTATE_UINT32(env
.exclusive_val
, ARMCPU
),
238 VMSTATE_UINT32(env
.exclusive_high
, ARMCPU
),
239 VMSTATE_UINT64(env
.features
, ARMCPU
),
240 VMSTATE_END_OF_LIST()
242 .subsections
= (VMStateSubsection
[]) {
244 .vmsd
= &vmstate_vfp
,
245 .needed
= vfp_needed
,
247 .vmsd
= &vmstate_iwmmxt
,
248 .needed
= iwmmxt_needed
,
253 .vmsd
= &vmstate_thumb2ee
,
254 .needed
= thumb2ee_needed
,