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