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     .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
  28 static 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
  41 static 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
  53 static 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
  67 static 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
  80 static const VMStateInfo vmstate_psr = {
  81     .name = "psr",
  82     .get = get_psr,
  83     .put = put_psr,
  84 };
  85
  86 static 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
 109 const 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 };