target-mips/machine.c

   1 #include "qemu/osdep.h"
   2 #include "qemu-common.h"
   3 #include "cpu.h"
   4 #include "hw/hw.h"
   5 #include "cpu.h"
   6 #include "migration/cpu.h"
   7
   8 static int cpu_post_load(void *opaque, int version_id)
   9 {
  10     MIPSCPU *cpu = opaque;
  11     CPUMIPSState *env = &cpu->env;
  12
  13     restore_fp_status(env);
  14     restore_msa_fp_status(env);
  15     compute_hflags(env);
  16     restore_pamask(env);
  17
  18     return 0;
  19 }
  20
  21 /* FPU state */
  22
  23 static int get_fpr(QEMUFile *f, void *pv, size_t size)
  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
  34 static void put_fpr(QEMUFile *f, void *pv, size_t size)
  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
  44 const VMStateInfo vmstate_info_fpr = {
  45     .name = "fpr",
  46     .get  = get_fpr,
  47     .put  = put_fpr,
  48 };
  49
  50 #define VMSTATE_FPR_ARRAY_V(_f, _s, _n, _v)                     \
  51     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_fpr, fpr_t)
  52
  53 #define VMSTATE_FPR_ARRAY(_f, _s, _n)                           \
  54     VMSTATE_FPR_ARRAY_V(_f, _s, _n, 0)
  55
  56 static VMStateField vmstate_fpu_fields[] = {
  57     VMSTATE_FPR_ARRAY(fpr, CPUMIPSFPUContext, 32),
  58     VMSTATE_UINT32(fcr0, CPUMIPSFPUContext),
  59     VMSTATE_UINT32(fcr31, CPUMIPSFPUContext),
  60     VMSTATE_END_OF_LIST()
  61 };
  62
  63 const VMStateDescription vmstate_fpu = {
  64     .name = "cpu/fpu",
  65     .version_id = 1,
  66     .minimum_version_id = 1,
  67     .fields = vmstate_fpu_fields
  68 };
  69
  70 const VMStateDescription vmstate_inactive_fpu = {
  71     .name = "cpu/inactive_fpu",
  72     .version_id = 1,
  73     .minimum_version_id = 1,
  74     .fields = vmstate_fpu_fields
  75 };
  76
  77 /* TC state */
  78
  79 static VMStateField vmstate_tc_fields[] = {
  80     VMSTATE_UINTTL_ARRAY(gpr, TCState, 32),
  81     VMSTATE_UINTTL(PC, TCState),
  82     VMSTATE_UINTTL_ARRAY(HI, TCState, MIPS_DSP_ACC),
  83     VMSTATE_UINTTL_ARRAY(LO, TCState, MIPS_DSP_ACC),
  84     VMSTATE_UINTTL_ARRAY(ACX, TCState, MIPS_DSP_ACC),
  85     VMSTATE_UINTTL(DSPControl, TCState),
  86     VMSTATE_INT32(CP0_TCStatus, TCState),
  87     VMSTATE_INT32(CP0_TCBind, TCState),
  88     VMSTATE_UINTTL(CP0_TCHalt, TCState),
  89     VMSTATE_UINTTL(CP0_TCContext, TCState),
  90     VMSTATE_UINTTL(CP0_TCSchedule, TCState),
  91     VMSTATE_UINTTL(CP0_TCScheFBack, TCState),
  92     VMSTATE_INT32(CP0_Debug_tcstatus, TCState),
  93     VMSTATE_UINTTL(CP0_UserLocal, TCState),
  94     VMSTATE_INT32(msacsr, TCState),
  95     VMSTATE_END_OF_LIST()
  96 };
  97
  98 const VMStateDescription vmstate_tc = {
  99     .name = "cpu/tc",
 100     .version_id = 1,
 101     .minimum_version_id = 1,
 102     .fields = vmstate_tc_fields
 103 };
 104
 105 const VMStateDescription vmstate_inactive_tc = {
 106     .name = "cpu/inactive_tc",
 107     .version_id = 1,
 108     .minimum_version_id = 1,
 109     .fields = vmstate_tc_fields
 110 };
 111
 112 /* MVP state */
 113
 114 const VMStateDescription vmstate_mvp = {
 115     .name = "cpu/mvp",
 116     .version_id = 1,
 117     .minimum_version_id = 1,
 118     .fields = (VMStateField[]) {
 119         VMSTATE_INT32(CP0_MVPControl, CPUMIPSMVPContext),
 120         VMSTATE_INT32(CP0_MVPConf0, CPUMIPSMVPContext),
 121         VMSTATE_INT32(CP0_MVPConf1, CPUMIPSMVPContext),
 122         VMSTATE_END_OF_LIST()
 123     }
 124 };
 125
 126 /* TLB state */
 127
 128 static int get_tlb(QEMUFile *f, void *pv, size_t size)
 129 {
 130     r4k_tlb_t *v = pv;
 131     uint16_t flags;
 132
 133     qemu_get_betls(f, &v->VPN);
 134     qemu_get_be32s(f, &v->PageMask);
 135     qemu_get_8s(f, &v->ASID);
 136     qemu_get_be16s(f, &flags);
 137     v->G = (flags >> 10) & 1;
 138     v->C0 = (flags >> 7) & 3;
 139     v->C1 = (flags >> 4) & 3;
 140     v->V0 = (flags >> 3) & 1;
 141     v->V1 = (flags >> 2) & 1;
 142     v->D0 = (flags >> 1) & 1;
 143     v->D1 = (flags >> 0) & 1;
 144     v->EHINV = (flags >> 15) & 1;
 145     v->RI1 = (flags >> 14) & 1;
 146     v->RI0 = (flags >> 13) & 1;
 147     v->XI1 = (flags >> 12) & 1;
 148     v->XI0 = (flags >> 11) & 1;
 149     qemu_get_be64s(f, &v->PFN[0]);
 150     qemu_get_be64s(f, &v->PFN[1]);
 151
 152     return 0;
 153 }
 154
 155 static void put_tlb(QEMUFile *f, void *pv, size_t size)
 156 {
 157     r4k_tlb_t *v = pv;
 158
 159     uint8_t asid = v->ASID;
 160     uint16_t flags = ((v->EHINV << 15) |
 161                       (v->RI1 << 14) |
 162                       (v->RI0 << 13) |
 163                       (v->XI1 << 12) |
 164                       (v->XI0 << 11) |
 165                       (v->G << 10) |
 166                       (v->C0 << 7) |
 167                       (v->C1 << 4) |
 168                       (v->V0 << 3) |
 169                       (v->V1 << 2) |
 170                       (v->D0 << 1) |
 171                       (v->D1 << 0));
 172
 173     qemu_put_betls(f, &v->VPN);
 174     qemu_put_be32s(f, &v->PageMask);
 175     qemu_put_8s(f, &asid);
 176     qemu_put_be16s(f, &flags);
 177     qemu_put_be64s(f, &v->PFN[0]);
 178     qemu_put_be64s(f, &v->PFN[1]);
 179 }
 180
 181 const VMStateInfo vmstate_info_tlb = {
 182     .name = "tlb_entry",
 183     .get  = get_tlb,
 184     .put  = put_tlb,
 185 };
 186
 187 #define VMSTATE_TLB_ARRAY_V(_f, _s, _n, _v)                     \
 188     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_tlb, r4k_tlb_t)
 189
 190 #define VMSTATE_TLB_ARRAY(_f, _s, _n)                           \
 191     VMSTATE_TLB_ARRAY_V(_f, _s, _n, 0)
 192
 193 const VMStateDescription vmstate_tlb = {
 194     .name = "cpu/tlb",
 195     .version_id = 1,
 196     .minimum_version_id = 1,
 197     .fields = (VMStateField[]) {
 198         VMSTATE_UINT32(nb_tlb, CPUMIPSTLBContext),
 199         VMSTATE_UINT32(tlb_in_use, CPUMIPSTLBContext),
 200         VMSTATE_TLB_ARRAY(mmu.r4k.tlb, CPUMIPSTLBContext, MIPS_TLB_MAX),
 201         VMSTATE_END_OF_LIST()
 202     }
 203 };
 204
 205 /* MIPS CPU state */
 206
 207 const VMStateDescription vmstate_mips_cpu = {
 208     .name = "cpu",
 209     .version_id = 8,
 210     .minimum_version_id = 8,
 211     .post_load = cpu_post_load,
 212     .fields = (VMStateField[]) {
 213         /* Active TC */
 214         VMSTATE_STRUCT(env.active_tc, MIPSCPU, 1, vmstate_tc, TCState),
 215
 216         /* Active FPU */
 217         VMSTATE_STRUCT(env.active_fpu, MIPSCPU, 1, vmstate_fpu,
 218                        CPUMIPSFPUContext),
 219
 220         /* MVP */
 221         VMSTATE_STRUCT_POINTER(env.mvp, MIPSCPU, vmstate_mvp,
 222                                CPUMIPSMVPContext),
 223
 224         /* TLB */
 225         VMSTATE_STRUCT_POINTER(env.tlb, MIPSCPU, vmstate_tlb,
 226                                CPUMIPSTLBContext),
 227
 228         /* CPU metastate */
 229         VMSTATE_UINT32(env.current_tc, MIPSCPU),
 230         VMSTATE_UINT32(env.current_fpu, MIPSCPU),
 231         VMSTATE_INT32(env.error_code, MIPSCPU),
 232         VMSTATE_UINTTL(env.btarget, MIPSCPU),
 233         VMSTATE_UINTTL(env.bcond, MIPSCPU),
 234
 235         /* Remaining CP0 registers */
 236         VMSTATE_INT32(env.CP0_Index, MIPSCPU),
 237         VMSTATE_INT32(env.CP0_Random, MIPSCPU),
 238         VMSTATE_INT32(env.CP0_VPEControl, MIPSCPU),
 239         VMSTATE_INT32(env.CP0_VPEConf0, MIPSCPU),
 240         VMSTATE_INT32(env.CP0_VPEConf1, MIPSCPU),
 241         VMSTATE_UINTTL(env.CP0_YQMask, MIPSCPU),
 242         VMSTATE_UINTTL(env.CP0_VPESchedule, MIPSCPU),
 243         VMSTATE_UINTTL(env.CP0_VPEScheFBack, MIPSCPU),
 244         VMSTATE_INT32(env.CP0_VPEOpt, MIPSCPU),
 245         VMSTATE_UINT64(env.CP0_EntryLo0, MIPSCPU),
 246         VMSTATE_UINT64(env.CP0_EntryLo1, MIPSCPU),
 247         VMSTATE_UINTTL(env.CP0_Context, MIPSCPU),
 248         VMSTATE_INT32(env.CP0_PageMask, MIPSCPU),
 249         VMSTATE_INT32(env.CP0_PageGrain, MIPSCPU),
 250         VMSTATE_INT32(env.CP0_Wired, MIPSCPU),
 251         VMSTATE_INT32(env.CP0_SRSConf0, MIPSCPU),
 252         VMSTATE_INT32(env.CP0_SRSConf1, MIPSCPU),
 253         VMSTATE_INT32(env.CP0_SRSConf2, MIPSCPU),
 254         VMSTATE_INT32(env.CP0_SRSConf3, MIPSCPU),
 255         VMSTATE_INT32(env.CP0_SRSConf4, MIPSCPU),
 256         VMSTATE_INT32(env.CP0_HWREna, MIPSCPU),
 257         VMSTATE_UINTTL(env.CP0_BadVAddr, MIPSCPU),
 258         VMSTATE_UINT32(env.CP0_BadInstr, MIPSCPU),
 259         VMSTATE_UINT32(env.CP0_BadInstrP, MIPSCPU),
 260         VMSTATE_INT32(env.CP0_Count, MIPSCPU),
 261         VMSTATE_UINTTL(env.CP0_EntryHi, MIPSCPU),
 262         VMSTATE_INT32(env.CP0_Compare, MIPSCPU),
 263         VMSTATE_INT32(env.CP0_Status, MIPSCPU),
 264         VMSTATE_INT32(env.CP0_IntCtl, MIPSCPU),
 265         VMSTATE_INT32(env.CP0_SRSCtl, MIPSCPU),
 266         VMSTATE_INT32(env.CP0_SRSMap, MIPSCPU),
 267         VMSTATE_INT32(env.CP0_Cause, MIPSCPU),
 268         VMSTATE_UINTTL(env.CP0_EPC, MIPSCPU),
 269         VMSTATE_INT32(env.CP0_PRid, MIPSCPU),
 270         VMSTATE_INT32(env.CP0_EBase, MIPSCPU),
 271         VMSTATE_INT32(env.CP0_Config0, MIPSCPU),
 272         VMSTATE_INT32(env.CP0_Config1, MIPSCPU),
 273         VMSTATE_INT32(env.CP0_Config2, MIPSCPU),
 274         VMSTATE_INT32(env.CP0_Config3, MIPSCPU),
 275         VMSTATE_INT32(env.CP0_Config6, MIPSCPU),
 276         VMSTATE_INT32(env.CP0_Config7, MIPSCPU),
 277         VMSTATE_UINT64_ARRAY(env.CP0_MAAR, MIPSCPU, MIPS_MAAR_MAX),
 278         VMSTATE_INT32(env.CP0_MAARI, MIPSCPU),
 279         VMSTATE_UINT64(env.lladdr, MIPSCPU),
 280         VMSTATE_UINTTL_ARRAY(env.CP0_WatchLo, MIPSCPU, 8),
 281         VMSTATE_INT32_ARRAY(env.CP0_WatchHi, MIPSCPU, 8),
 282         VMSTATE_UINTTL(env.CP0_XContext, MIPSCPU),
 283         VMSTATE_INT32(env.CP0_Framemask, MIPSCPU),
 284         VMSTATE_INT32(env.CP0_Debug, MIPSCPU),
 285         VMSTATE_UINTTL(env.CP0_DEPC, MIPSCPU),
 286         VMSTATE_INT32(env.CP0_Performance0, MIPSCPU),
 287         VMSTATE_UINT64(env.CP0_TagLo, MIPSCPU),
 288         VMSTATE_INT32(env.CP0_DataLo, MIPSCPU),
 289         VMSTATE_INT32(env.CP0_TagHi, MIPSCPU),
 290         VMSTATE_INT32(env.CP0_DataHi, MIPSCPU),
 291         VMSTATE_UINTTL(env.CP0_ErrorEPC, MIPSCPU),
 292         VMSTATE_INT32(env.CP0_DESAVE, MIPSCPU),
 293         VMSTATE_UINTTL_ARRAY(env.CP0_KScratch, MIPSCPU, MIPS_KSCRATCH_NUM),
 294
 295         /* Inactive TC */
 296         VMSTATE_STRUCT_ARRAY(env.tcs, MIPSCPU, MIPS_SHADOW_SET_MAX, 1,
 297                              vmstate_inactive_tc, TCState),
 298         VMSTATE_STRUCT_ARRAY(env.fpus, MIPSCPU, MIPS_FPU_MAX, 1,
 299                              vmstate_inactive_fpu, CPUMIPSFPUContext),
 300
 301         VMSTATE_END_OF_LIST()
 302     },
 303 };