1 #include "qemu/osdep.h"
2 #include "cpu.h"
3 #include "internal.h"
4 #include "migration/cpu.h"
5 #include "fpu_helper.h"
6
cpu_post_load(void * opaque,int version_id)7 static int cpu_post_load(void *opaque, int version_id)
8 {
9 MIPSCPU *cpu = opaque;
10 CPUMIPSState *env = &cpu->env;
11
12 restore_fp_status(env);
13 restore_msa_fp_status(env);
14 compute_hflags(env);
15 restore_pamask(env);
16
17 return 0;
18 }
19
20 /* FPU state */
21
get_fpr(QEMUFile * f,void * pv,size_t size,const VMStateField * field)22 static int get_fpr(QEMUFile *f, void *pv, size_t size,
23 const VMStateField *field)
24 {
25 int i;
26 fpr_t *v = pv;
27 /* Restore entire MSA vector register */
28 for (i = 0; i < MSA_WRLEN / 64; i++) {
29 qemu_get_sbe64s(f, &v->wr.d[i]);
30 }
31 return 0;
32 }
33
put_fpr(QEMUFile * f,void * pv,size_t size,const VMStateField * field,JSONWriter * vmdesc)34 static int put_fpr(QEMUFile *f, void *pv, size_t size,
35 const VMStateField *field, JSONWriter *vmdesc)
36 {
37 int i;
38 fpr_t *v = pv;
39 /* Save entire MSA vector register */
40 for (i = 0; i < MSA_WRLEN / 64; i++) {
41 qemu_put_sbe64s(f, &v->wr.d[i]);
42 }
43
44 return 0;
45 }
46
47 static const VMStateInfo vmstate_info_fpr = {
48 .name = "fpr",
49 .get = get_fpr,
50 .put = put_fpr,
51 };
52
53 #define VMSTATE_FPR_ARRAY_V(_f, _s, _n, _v) \
54 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_fpr, fpr_t)
55
56 #define VMSTATE_FPR_ARRAY(_f, _s, _n) \
57 VMSTATE_FPR_ARRAY_V(_f, _s, _n, 0)
58
59 static const VMStateField vmstate_fpu_fields[] = {
60 VMSTATE_FPR_ARRAY(fpr, CPUMIPSFPUContext, 32),
61 VMSTATE_UINT32(fcr0, CPUMIPSFPUContext),
62 VMSTATE_UINT32(fcr31, CPUMIPSFPUContext),
63 VMSTATE_END_OF_LIST()
64 };
65
66 static const VMStateDescription vmstate_fpu = {
67 .name = "cpu/fpu",
68 .version_id = 1,
69 .minimum_version_id = 1,
70 .fields = vmstate_fpu_fields
71 };
72
73 static const VMStateDescription vmstate_inactive_fpu = {
74 .name = "cpu/inactive_fpu",
75 .version_id = 1,
76 .minimum_version_id = 1,
77 .fields = vmstate_fpu_fields
78 };
79
80 /* TC state */
81
82 static const VMStateField vmstate_tc_fields[] = {
83 VMSTATE_UINTTL_ARRAY(gpr, TCState, 32),
84 #if defined(TARGET_MIPS64)
85 VMSTATE_UINT64_ARRAY(gpr_hi, TCState, 32),
86 #endif /* TARGET_MIPS64 */
87 VMSTATE_UINTTL(PC, TCState),
88 VMSTATE_UINTTL_ARRAY(HI, TCState, MIPS_DSP_ACC),
89 VMSTATE_UINTTL_ARRAY(LO, TCState, MIPS_DSP_ACC),
90 VMSTATE_UINTTL_ARRAY(ACX, TCState, MIPS_DSP_ACC),
91 VMSTATE_UINTTL(DSPControl, TCState),
92 VMSTATE_INT32(CP0_TCStatus, TCState),
93 VMSTATE_INT32(CP0_TCBind, TCState),
94 VMSTATE_UINTTL(CP0_TCHalt, TCState),
95 VMSTATE_UINTTL(CP0_TCContext, TCState),
96 VMSTATE_UINTTL(CP0_TCSchedule, TCState),
97 VMSTATE_UINTTL(CP0_TCScheFBack, TCState),
98 VMSTATE_INT32(CP0_Debug_tcstatus, TCState),
99 VMSTATE_UINTTL(CP0_UserLocal, TCState),
100 VMSTATE_INT32(msacsr, TCState),
101 VMSTATE_UINTTL_ARRAY(mxu_gpr, TCState, NUMBER_OF_MXU_REGISTERS - 1),
102 VMSTATE_UINTTL(mxu_cr, TCState),
103 VMSTATE_END_OF_LIST()
104 };
105
106 static const VMStateDescription vmstate_tc = {
107 .name = "cpu/tc",
108 .version_id = 2,
109 .minimum_version_id = 2,
110 .fields = vmstate_tc_fields
111 };
112
113 static const VMStateDescription vmstate_inactive_tc = {
114 .name = "cpu/inactive_tc",
115 .version_id = 2,
116 .minimum_version_id = 2,
117 .fields = vmstate_tc_fields
118 };
119
120 /* MVP state */
121
122 static const VMStateDescription vmstate_mvp = {
123 .name = "cpu/mvp",
124 .version_id = 1,
125 .minimum_version_id = 1,
126 .fields = (const VMStateField[]) {
127 VMSTATE_INT32(CP0_MVPControl, CPUMIPSMVPContext),
128 VMSTATE_INT32(CP0_MVPConf0, CPUMIPSMVPContext),
129 VMSTATE_INT32(CP0_MVPConf1, CPUMIPSMVPContext),
130 VMSTATE_END_OF_LIST()
131 }
132 };
133
134 /* TLB state */
135
get_tlb(QEMUFile * f,void * pv,size_t size,const VMStateField * field)136 static int get_tlb(QEMUFile *f, void *pv, size_t size,
137 const VMStateField *field)
138 {
139 r4k_tlb_t *v = pv;
140 uint16_t flags;
141
142 qemu_get_betls(f, &v->VPN);
143 qemu_get_be32s(f, &v->PageMask);
144 qemu_get_be16s(f, &v->ASID);
145 qemu_get_be16s(f, &flags);
146 v->G = (flags >> 10) & 1;
147 v->C0 = (flags >> 7) & 3;
148 v->C1 = (flags >> 4) & 3;
149 v->V0 = (flags >> 3) & 1;
150 v->V1 = (flags >> 2) & 1;
151 v->D0 = (flags >> 1) & 1;
152 v->D1 = (flags >> 0) & 1;
153 v->EHINV = (flags >> 15) & 1;
154 v->RI1 = (flags >> 14) & 1;
155 v->RI0 = (flags >> 13) & 1;
156 v->XI1 = (flags >> 12) & 1;
157 v->XI0 = (flags >> 11) & 1;
158 qemu_get_be64s(f, &v->PFN[0]);
159 qemu_get_be64s(f, &v->PFN[1]);
160
161 return 0;
162 }
163
put_tlb(QEMUFile * f,void * pv,size_t size,const VMStateField * field,JSONWriter * vmdesc)164 static int put_tlb(QEMUFile *f, void *pv, size_t size,
165 const VMStateField *field, JSONWriter *vmdesc)
166 {
167 r4k_tlb_t *v = pv;
168
169 uint16_t asid = v->ASID;
170 uint16_t flags = ((v->EHINV << 15) |
171 (v->RI1 << 14) |
172 (v->RI0 << 13) |
173 (v->XI1 << 12) |
174 (v->XI0 << 11) |
175 (v->G << 10) |
176 (v->C0 << 7) |
177 (v->C1 << 4) |
178 (v->V0 << 3) |
179 (v->V1 << 2) |
180 (v->D0 << 1) |
181 (v->D1 << 0));
182
183 qemu_put_betls(f, &v->VPN);
184 qemu_put_be32s(f, &v->PageMask);
185 qemu_put_be16s(f, &asid);
186 qemu_put_be16s(f, &flags);
187 qemu_put_be64s(f, &v->PFN[0]);
188 qemu_put_be64s(f, &v->PFN[1]);
189
190 return 0;
191 }
192
193 static const VMStateInfo vmstate_info_tlb = {
194 .name = "tlb_entry",
195 .get = get_tlb,
196 .put = put_tlb,
197 };
198
199 #define VMSTATE_TLB_ARRAY_V(_f, _s, _n, _v) \
200 VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_tlb, r4k_tlb_t)
201
202 #define VMSTATE_TLB_ARRAY(_f, _s, _n) \
203 VMSTATE_TLB_ARRAY_V(_f, _s, _n, 0)
204
205 static const VMStateDescription vmstate_tlb = {
206 .name = "cpu/tlb",
207 .version_id = 2,
208 .minimum_version_id = 2,
209 .fields = (const VMStateField[]) {
210 VMSTATE_UINT32(nb_tlb, CPUMIPSTLBContext),
211 VMSTATE_UINT32(tlb_in_use, CPUMIPSTLBContext),
212 VMSTATE_TLB_ARRAY(mmu.r4k.tlb, CPUMIPSTLBContext, MIPS_TLB_MAX),
213 VMSTATE_END_OF_LIST()
214 }
215 };
216
217 /* MIPS CPU state */
218
219 const VMStateDescription vmstate_mips_cpu = {
220 .name = "cpu",
221 .version_id = 21,
222 .minimum_version_id = 21,
223 .post_load = cpu_post_load,
224 .fields = (const VMStateField[]) {
225 /* Active TC */
226 VMSTATE_STRUCT(env.active_tc, MIPSCPU, 1, vmstate_tc, TCState),
227
228 /* Active FPU */
229 VMSTATE_STRUCT(env.active_fpu, MIPSCPU, 1, vmstate_fpu,
230 CPUMIPSFPUContext),
231
232 /* MVP */
233 VMSTATE_STRUCT_POINTER(env.mvp, MIPSCPU, vmstate_mvp,
234 CPUMIPSMVPContext),
235
236 /* TLB */
237 VMSTATE_STRUCT_POINTER(env.tlb, MIPSCPU, vmstate_tlb,
238 CPUMIPSTLBContext),
239
240 /* CPU metastate */
241 VMSTATE_UINT32(env.current_tc, MIPSCPU),
242 VMSTATE_UINT32(env.current_fpu, MIPSCPU),
243 VMSTATE_INT32(env.error_code, MIPSCPU),
244 VMSTATE_UINTTL(env.btarget, MIPSCPU),
245 VMSTATE_UINTTL(env.bcond, MIPSCPU),
246
247 /* Remaining CP0 registers */
248 VMSTATE_INT32(env.CP0_Index, MIPSCPU),
249 VMSTATE_INT32(env.CP0_VPControl, MIPSCPU),
250 VMSTATE_INT32(env.CP0_Random, MIPSCPU),
251 VMSTATE_INT32(env.CP0_VPEControl, MIPSCPU),
252 VMSTATE_INT32(env.CP0_VPEConf0, MIPSCPU),
253 VMSTATE_INT32(env.CP0_VPEConf1, MIPSCPU),
254 VMSTATE_UINTTL(env.CP0_YQMask, MIPSCPU),
255 VMSTATE_UINTTL(env.CP0_VPESchedule, MIPSCPU),
256 VMSTATE_UINTTL(env.CP0_VPEScheFBack, MIPSCPU),
257 VMSTATE_INT32(env.CP0_VPEOpt, MIPSCPU),
258 VMSTATE_UINT64(env.CP0_EntryLo0, MIPSCPU),
259 VMSTATE_UINT64(env.CP0_EntryLo1, MIPSCPU),
260 VMSTATE_INT32(env.CP0_GlobalNumber, MIPSCPU),
261 VMSTATE_UINTTL(env.CP0_Context, MIPSCPU),
262 VMSTATE_INT32(env.CP0_MemoryMapID, MIPSCPU),
263 VMSTATE_INT32(env.CP0_PageMask, MIPSCPU),
264 VMSTATE_INT32(env.CP0_PageGrain, MIPSCPU),
265 VMSTATE_UINTTL(env.CP0_SegCtl0, MIPSCPU),
266 VMSTATE_UINTTL(env.CP0_SegCtl1, MIPSCPU),
267 VMSTATE_UINTTL(env.CP0_SegCtl2, MIPSCPU),
268 VMSTATE_UINTTL(env.CP0_PWBase, MIPSCPU),
269 VMSTATE_UINTTL(env.CP0_PWField, MIPSCPU),
270 VMSTATE_UINTTL(env.CP0_PWSize, MIPSCPU),
271 VMSTATE_INT32(env.CP0_Wired, MIPSCPU),
272 VMSTATE_INT32(env.CP0_PWCtl, MIPSCPU),
273 VMSTATE_INT32(env.CP0_SRSConf0, MIPSCPU),
274 VMSTATE_INT32(env.CP0_SRSConf1, MIPSCPU),
275 VMSTATE_INT32(env.CP0_SRSConf2, MIPSCPU),
276 VMSTATE_INT32(env.CP0_SRSConf3, MIPSCPU),
277 VMSTATE_INT32(env.CP0_SRSConf4, MIPSCPU),
278 VMSTATE_INT32(env.CP0_HWREna, MIPSCPU),
279 VMSTATE_UINTTL(env.CP0_BadVAddr, MIPSCPU),
280 VMSTATE_UINT32(env.CP0_BadInstr, MIPSCPU),
281 VMSTATE_UINT32(env.CP0_BadInstrP, MIPSCPU),
282 VMSTATE_UINT32(env.CP0_BadInstrX, MIPSCPU),
283 VMSTATE_INT32(env.CP0_Count, MIPSCPU),
284 VMSTATE_UNUSED(sizeof(uint32_t)), /* was CP0_SAARI */
285 VMSTATE_UNUSED(2 * sizeof(uint64_t)), /* was CP0_SAAR[2] */
286 VMSTATE_UINTTL(env.CP0_EntryHi, MIPSCPU),
287 VMSTATE_INT32(env.CP0_Compare, MIPSCPU),
288 VMSTATE_INT32(env.CP0_Status, MIPSCPU),
289 VMSTATE_INT32(env.CP0_IntCtl, MIPSCPU),
290 VMSTATE_INT32(env.CP0_SRSCtl, MIPSCPU),
291 VMSTATE_INT32(env.CP0_SRSMap, MIPSCPU),
292 VMSTATE_INT32(env.CP0_Cause, MIPSCPU),
293 VMSTATE_UINTTL(env.CP0_EPC, MIPSCPU),
294 VMSTATE_INT32(env.CP0_PRid, MIPSCPU),
295 VMSTATE_UINTTL(env.CP0_EBase, MIPSCPU),
296 VMSTATE_UINTTL(env.CP0_CMGCRBase, MIPSCPU),
297 VMSTATE_INT32(env.CP0_Config0, MIPSCPU),
298 VMSTATE_INT32(env.CP0_Config1, MIPSCPU),
299 VMSTATE_INT32(env.CP0_Config2, MIPSCPU),
300 VMSTATE_INT32(env.CP0_Config3, MIPSCPU),
301 VMSTATE_INT32(env.CP0_Config4, MIPSCPU),
302 VMSTATE_INT32(env.CP0_Config5, MIPSCPU),
303 VMSTATE_INT32(env.CP0_Config6, MIPSCPU),
304 VMSTATE_INT32(env.CP0_Config7, MIPSCPU),
305 VMSTATE_UINT64(env.CP0_LLAddr, MIPSCPU),
306 VMSTATE_UINT64_ARRAY(env.CP0_MAAR, MIPSCPU, MIPS_MAAR_MAX),
307 VMSTATE_INT32(env.CP0_MAARI, MIPSCPU),
308 VMSTATE_UINTTL(env.lladdr, MIPSCPU),
309 VMSTATE_UINTTL_ARRAY(env.CP0_WatchLo, MIPSCPU, 8),
310 VMSTATE_UINT64_ARRAY(env.CP0_WatchHi, MIPSCPU, 8),
311 VMSTATE_UINTTL(env.CP0_XContext, MIPSCPU),
312 VMSTATE_INT32(env.CP0_Framemask, MIPSCPU),
313 VMSTATE_INT32(env.CP0_Debug, MIPSCPU),
314 VMSTATE_UINTTL(env.CP0_DEPC, MIPSCPU),
315 VMSTATE_INT32(env.CP0_Performance0, MIPSCPU),
316 VMSTATE_INT32(env.CP0_ErrCtl, MIPSCPU),
317 VMSTATE_UINT64(env.CP0_TagLo, MIPSCPU),
318 VMSTATE_INT32(env.CP0_DataLo, MIPSCPU),
319 VMSTATE_INT32(env.CP0_TagHi, MIPSCPU),
320 VMSTATE_INT32(env.CP0_DataHi, MIPSCPU),
321 VMSTATE_UINTTL(env.CP0_ErrorEPC, MIPSCPU),
322 VMSTATE_INT32(env.CP0_DESAVE, MIPSCPU),
323 VMSTATE_UINTTL_ARRAY(env.CP0_KScratch, MIPSCPU, MIPS_KSCRATCH_NUM),
324
325 /* Inactive TC */
326 VMSTATE_STRUCT_ARRAY(env.tcs, MIPSCPU, MIPS_SHADOW_SET_MAX, 1,
327 vmstate_inactive_tc, TCState),
328 VMSTATE_STRUCT_ARRAY(env.fpus, MIPSCPU, MIPS_FPU_MAX, 1,
329 vmstate_inactive_fpu, CPUMIPSFPUContext),
330
331 VMSTATE_END_OF_LIST()
332 },
333 };
334