target/mips/machine.c

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