target/sparc/machine.c

   1 #include "qemu/osdep.h"
   2 #include "cpu.h"
   3 #include "exec/exec-all.h"
   4 #include "qemu/timer.h"
   5
   6 #include "migration/cpu.h"
   7
   8 #ifdef TARGET_SPARC64
   9 static const VMStateDescription vmstate_cpu_timer = {
  10     .name = "cpu_timer",
  11     .version_id = 1,
  12     .minimum_version_id = 1,
  13     .minimum_version_id_old = 1,
  14     .fields = (VMStateField[]) {
  15         VMSTATE_UINT32(frequency, CPUTimer),
  16         VMSTATE_UINT32(disabled, CPUTimer),
  17         VMSTATE_UINT64(disabled_mask, CPUTimer),
  18         VMSTATE_UINT32(npt, CPUTimer),
  19         VMSTATE_UINT64(npt_mask, CPUTimer),
  20         VMSTATE_INT64(clock_offset, CPUTimer),
  21         VMSTATE_TIMER_PTR(qtimer, CPUTimer),
  22         VMSTATE_END_OF_LIST()
  23     }
  24 };
  25
  26 #define VMSTATE_CPU_TIMER(_f, _s)                             \
  27     VMSTATE_STRUCT_POINTER(_f, _s, vmstate_cpu_timer, CPUTimer)
  28
  29 static const VMStateDescription vmstate_trap_state = {
  30     .name = "trap_state",
  31     .version_id = 1,
  32     .minimum_version_id = 1,
  33     .minimum_version_id_old = 1,
  34     .fields = (VMStateField[]) {
  35         VMSTATE_UINT64(tpc, trap_state),
  36         VMSTATE_UINT64(tnpc, trap_state),
  37         VMSTATE_UINT64(tstate, trap_state),
  38         VMSTATE_UINT32(tt, trap_state),
  39         VMSTATE_END_OF_LIST()
  40     }
  41 };
  42
  43 static const VMStateDescription vmstate_tlb_entry = {
  44     .name = "tlb_entry",
  45     .version_id = 1,
  46     .minimum_version_id = 1,
  47     .minimum_version_id_old = 1,
  48     .fields = (VMStateField[]) {
  49         VMSTATE_UINT64(tag, SparcTLBEntry),
  50         VMSTATE_UINT64(tte, SparcTLBEntry),
  51         VMSTATE_END_OF_LIST()
  52     }
  53 };
  54 #endif
  55
  56 static int get_psr(QEMUFile *f, void *opaque, size_t size,
  57                    const VMStateField *field)
  58 {
  59     SPARCCPU *cpu = opaque;
  60     CPUSPARCState *env = &cpu->env;
  61     uint32_t val = qemu_get_be32(f);
  62
  63     /* needed to ensure that the wrapping registers are correctly updated */
  64     env->cwp = 0;
  65     cpu_put_psr_raw(env, val);
  66
  67     return 0;
  68 }
  69
  70 static int put_psr(QEMUFile *f, void *opaque, size_t size,
  71                    const VMStateField *field, QJSON *vmdesc)
  72 {
  73     SPARCCPU *cpu = opaque;
  74     CPUSPARCState *env = &cpu->env;
  75     uint32_t val;
  76
  77     val = cpu_get_psr(env);
  78
  79     qemu_put_be32(f, val);
  80     return 0;
  81 }
  82
  83 static const VMStateInfo vmstate_psr = {
  84     .name = "psr",
  85     .get = get_psr,
  86     .put = put_psr,
  87 };
  88
  89 static int cpu_pre_save(void *opaque)
  90 {
  91     SPARCCPU *cpu = opaque;
  92     CPUSPARCState *env = &cpu->env;
  93
  94     /* if env->cwp == env->nwindows - 1, this will set the ins of the last
  95      * window as the outs of the first window
  96      */
  97     cpu_set_cwp(env, env->cwp);
  98
  99     return 0;
 100 }
 101
 102 /* 32-bit SPARC retains migration compatibility with older versions
 103  * of QEMU; 64-bit SPARC has had a migration break since then, so the
 104  * versions are different.
 105  */
 106 #ifndef TARGET_SPARC64
 107 #define SPARC_VMSTATE_VER 7
 108 #else
 109 #define SPARC_VMSTATE_VER 9
 110 #endif
 111
 112 const VMStateDescription vmstate_sparc_cpu = {
 113     .name = "cpu",
 114     .version_id = SPARC_VMSTATE_VER,
 115     .minimum_version_id = SPARC_VMSTATE_VER,
 116     .minimum_version_id_old = SPARC_VMSTATE_VER,
 117     .pre_save = cpu_pre_save,
 118     .fields = (VMStateField[]) {
 119         VMSTATE_UINTTL_ARRAY(env.gregs, SPARCCPU, 8),
 120         VMSTATE_UINT32(env.nwindows, SPARCCPU),
 121         VMSTATE_VARRAY_MULTIPLY(env.regbase, SPARCCPU, env.nwindows, 16,
 122                                 vmstate_info_uinttl, target_ulong),
 123         VMSTATE_CPUDOUBLE_ARRAY(env.fpr, SPARCCPU, TARGET_DPREGS),
 124         VMSTATE_UINTTL(env.pc, SPARCCPU),
 125         VMSTATE_UINTTL(env.npc, SPARCCPU),
 126         VMSTATE_UINTTL(env.y, SPARCCPU),
 127         {
 128
 129             .name = "psr",
 130             .version_id = 0,
 131             .size = sizeof(uint32_t),
 132             .info = &vmstate_psr,
 133             .flags = VMS_SINGLE,
 134             .offset = 0,
 135         },
 136         VMSTATE_UINTTL(env.fsr, SPARCCPU),
 137         VMSTATE_UINTTL(env.tbr, SPARCCPU),
 138         VMSTATE_INT32(env.interrupt_index, SPARCCPU),
 139         VMSTATE_UINT32(env.pil_in, SPARCCPU),
 140 #ifndef TARGET_SPARC64
 141         /* MMU */
 142         VMSTATE_UINT32(env.wim, SPARCCPU),
 143         VMSTATE_UINT32_ARRAY(env.mmuregs, SPARCCPU, 32),
 144         VMSTATE_UINT64_ARRAY(env.mxccdata, SPARCCPU, 4),
 145         VMSTATE_UINT64_ARRAY(env.mxccregs, SPARCCPU, 8),
 146         VMSTATE_UINT32(env.mmubpctrv, SPARCCPU),
 147         VMSTATE_UINT32(env.mmubpctrc, SPARCCPU),
 148         VMSTATE_UINT32(env.mmubpctrs, SPARCCPU),
 149         VMSTATE_UINT64(env.mmubpaction, SPARCCPU),
 150         VMSTATE_UINT64_ARRAY(env.mmubpregs, SPARCCPU, 4),
 151 #else
 152         VMSTATE_UINT64(env.lsu, SPARCCPU),
 153         VMSTATE_UINT64_ARRAY(env.immu.mmuregs, SPARCCPU, 16),
 154         VMSTATE_UINT64_ARRAY(env.dmmu.mmuregs, SPARCCPU, 16),
 155         VMSTATE_STRUCT_ARRAY(env.itlb, SPARCCPU, 64, 0,
 156                              vmstate_tlb_entry, SparcTLBEntry),
 157         VMSTATE_STRUCT_ARRAY(env.dtlb, SPARCCPU, 64, 0,
 158                              vmstate_tlb_entry, SparcTLBEntry),
 159         VMSTATE_UINT32(env.mmu_version, SPARCCPU),
 160         VMSTATE_STRUCT_ARRAY(env.ts, SPARCCPU, MAXTL_MAX, 0,
 161                              vmstate_trap_state, trap_state),
 162         VMSTATE_UINT32(env.xcc, SPARCCPU),
 163         VMSTATE_UINT32(env.asi, SPARCCPU),
 164         VMSTATE_UINT32(env.pstate, SPARCCPU),
 165         VMSTATE_UINT32(env.tl, SPARCCPU),
 166         VMSTATE_UINT32(env.cansave, SPARCCPU),
 167         VMSTATE_UINT32(env.canrestore, SPARCCPU),
 168         VMSTATE_UINT32(env.otherwin, SPARCCPU),
 169         VMSTATE_UINT32(env.wstate, SPARCCPU),
 170         VMSTATE_UINT32(env.cleanwin, SPARCCPU),
 171         VMSTATE_UINT64_ARRAY(env.agregs, SPARCCPU, 8),
 172         VMSTATE_UINT64_ARRAY(env.bgregs, SPARCCPU, 8),
 173         VMSTATE_UINT64_ARRAY(env.igregs, SPARCCPU, 8),
 174         VMSTATE_UINT64_ARRAY(env.mgregs, SPARCCPU, 8),
 175         VMSTATE_UINT64(env.fprs, SPARCCPU),
 176         VMSTATE_UINT64(env.tick_cmpr, SPARCCPU),
 177         VMSTATE_UINT64(env.stick_cmpr, SPARCCPU),
 178         VMSTATE_CPU_TIMER(env.tick, SPARCCPU),
 179         VMSTATE_CPU_TIMER(env.stick, SPARCCPU),
 180         VMSTATE_UINT64(env.gsr, SPARCCPU),
 181         VMSTATE_UINT32(env.gl, SPARCCPU),
 182         VMSTATE_UINT64(env.hpstate, SPARCCPU),
 183         VMSTATE_UINT64_ARRAY(env.htstate, SPARCCPU, MAXTL_MAX),
 184         VMSTATE_UINT64(env.hintp, SPARCCPU),
 185         VMSTATE_UINT64(env.htba, SPARCCPU),
 186         VMSTATE_UINT64(env.hver, SPARCCPU),
 187         VMSTATE_UINT64(env.hstick_cmpr, SPARCCPU),
 188         VMSTATE_UINT64(env.ssr, SPARCCPU),
 189         VMSTATE_CPU_TIMER(env.hstick, SPARCCPU),
 190         /* On SPARC32 env.psrpil and env.cwp are migrated as part of the PSR */
 191         VMSTATE_UINT32(env.psrpil, SPARCCPU),
 192         VMSTATE_UINT32(env.cwp, SPARCCPU),
 193 #endif
 194         VMSTATE_END_OF_LIST()
 195     },
 196 };