target/sparc/machine.c

   1 #include "qemu/osdep.h"
   2 #include "qemu-common.h"
   3 #include "cpu.h"
   4 #include "exec/exec-all.h"
   5 #include "hw/hw.h"
   6 #include "hw/boards.h"
   7 #include "qemu/timer.h"
   8
   9 #include "migration/cpu.h"
  10
  11 #ifdef TARGET_SPARC64
  12 static const VMStateDescription vmstate_cpu_timer = {
  13     .name = "cpu_timer",
  14     .version_id = 1,
  15     .minimum_version_id = 1,
  16     .minimum_version_id_old = 1,
  17     .fields = (VMStateField[]) {
  18         VMSTATE_UINT32(frequency, CPUTimer),
  19         VMSTATE_UINT32(disabled, CPUTimer),
  20         VMSTATE_UINT64(disabled_mask, CPUTimer),
  21         VMSTATE_UINT32(npt, CPUTimer),
  22         VMSTATE_UINT64(npt_mask, CPUTimer),
  23         VMSTATE_INT64(clock_offset, CPUTimer),
  24         VMSTATE_TIMER_PTR(qtimer, CPUTimer),
  25         VMSTATE_END_OF_LIST()
  26     }
  27 };
  28
  29 #define VMSTATE_CPU_TIMER(_f, _s)                             \
  30     VMSTATE_STRUCT_POINTER(_f, _s, vmstate_cpu_timer, CPUTimer)
  31
  32 static const VMStateDescription vmstate_trap_state = {
  33     .name = "trap_state",
  34     .version_id = 1,
  35     .minimum_version_id = 1,
  36     .minimum_version_id_old = 1,
  37     .fields = (VMStateField[]) {
  38         VMSTATE_UINT64(tpc, trap_state),
  39         VMSTATE_UINT64(tnpc, trap_state),
  40         VMSTATE_UINT64(tstate, trap_state),
  41         VMSTATE_UINT32(tt, trap_state),
  42         VMSTATE_END_OF_LIST()
  43     }
  44 };
  45
  46 static const VMStateDescription vmstate_tlb_entry = {
  47     .name = "tlb_entry",
  48     .version_id = 1,
  49     .minimum_version_id = 1,
  50     .minimum_version_id_old = 1,
  51     .fields = (VMStateField[]) {
  52         VMSTATE_UINT64(tag, SparcTLBEntry),
  53         VMSTATE_UINT64(tte, SparcTLBEntry),
  54         VMSTATE_END_OF_LIST()
  55     }
  56 };
  57 #endif
  58
  59 static int get_psr(QEMUFile *f, void *opaque, size_t size, VMStateField *field)
  60 {
  61     SPARCCPU *cpu = opaque;
  62     CPUSPARCState *env = &cpu->env;
  63     uint32_t val = qemu_get_be32(f);
  64
  65     /* needed to ensure that the wrapping registers are correctly updated */
  66     env->cwp = 0;
  67     cpu_put_psr_raw(env, val);
  68
  69     return 0;
  70 }
  71
  72 static int put_psr(QEMUFile *f, void *opaque, size_t size, VMStateField *field,
  73                    QJSON *vmdesc)
  74 {
  75     SPARCCPU *cpu = opaque;
  76     CPUSPARCState *env = &cpu->env;
  77     uint32_t val;
  78
  79     val = cpu_get_psr(env);
  80
  81     qemu_put_be32(f, val);
  82     return 0;
  83 }
  84
  85 static const VMStateInfo vmstate_psr = {
  86     .name = "psr",
  87     .get = get_psr,
  88     .put = put_psr,
  89 };
  90
  91 static int cpu_pre_save(void *opaque)
  92 {
  93     SPARCCPU *cpu = opaque;
  94     CPUSPARCState *env = &cpu->env;
  95
  96     /* if env->cwp == env->nwindows - 1, this will set the ins of the last
  97      * window as the outs of the first window
  98      */
  99     cpu_set_cwp(env, env->cwp);
 100
 101     return 0;
 102 }
 103
 104 /* 32-bit SPARC retains migration compatibility with older versions
 105  * of QEMU; 64-bit SPARC has had a migration break since then, so the
 106  * versions are different.
 107  */
 108 #ifndef TARGET_SPARC64
 109 #define SPARC_VMSTATE_VER 7
 110 #else
 111 #define SPARC_VMSTATE_VER 9
 112 #endif
 113
 114 const VMStateDescription vmstate_sparc_cpu = {
 115     .name = "cpu",
 116     .version_id = SPARC_VMSTATE_VER,
 117     .minimum_version_id = SPARC_VMSTATE_VER,
 118     .minimum_version_id_old = SPARC_VMSTATE_VER,
 119     .pre_save = cpu_pre_save,
 120     .fields = (VMStateField[]) {
 121         VMSTATE_UINTTL_ARRAY(env.gregs, SPARCCPU, 8),
 122         VMSTATE_UINT32(env.nwindows, SPARCCPU),
 123         VMSTATE_VARRAY_MULTIPLY(env.regbase, SPARCCPU, env.nwindows, 16,
 124                                 vmstate_info_uinttl, target_ulong),
 125         VMSTATE_CPUDOUBLE_ARRAY(env.fpr, SPARCCPU, TARGET_DPREGS),
 126         VMSTATE_UINTTL(env.pc, SPARCCPU),
 127         VMSTATE_UINTTL(env.npc, SPARCCPU),
 128         VMSTATE_UINTTL(env.y, SPARCCPU),
 129         {
 130
 131             .name = "psr",
 132             .version_id = 0,
 133             .size = sizeof(uint32_t),
 134             .info = &vmstate_psr,
 135             .flags = VMS_SINGLE,
 136             .offset = 0,
 137         },
 138         VMSTATE_UINTTL(env.fsr, SPARCCPU),
 139         VMSTATE_UINTTL(env.tbr, SPARCCPU),
 140         VMSTATE_INT32(env.interrupt_index, SPARCCPU),
 141         VMSTATE_UINT32(env.pil_in, SPARCCPU),
 142 #ifndef TARGET_SPARC64
 143         /* MMU */
 144         VMSTATE_UINT32(env.wim, SPARCCPU),
 145         VMSTATE_UINT32_ARRAY(env.mmuregs, SPARCCPU, 32),
 146         VMSTATE_UINT64_ARRAY(env.mxccdata, SPARCCPU, 4),
 147         VMSTATE_UINT64_ARRAY(env.mxccregs, SPARCCPU, 8),
 148         VMSTATE_UINT32(env.mmubpctrv, SPARCCPU),
 149         VMSTATE_UINT32(env.mmubpctrc, SPARCCPU),
 150         VMSTATE_UINT32(env.mmubpctrs, SPARCCPU),
 151         VMSTATE_UINT64(env.mmubpaction, SPARCCPU),
 152         VMSTATE_UINT64_ARRAY(env.mmubpregs, SPARCCPU, 4),
 153 #else
 154         VMSTATE_UINT64(env.lsu, SPARCCPU),
 155         VMSTATE_UINT64_ARRAY(env.immu.mmuregs, SPARCCPU, 16),
 156         VMSTATE_UINT64_ARRAY(env.dmmu.mmuregs, SPARCCPU, 16),
 157         VMSTATE_STRUCT_ARRAY(env.itlb, SPARCCPU, 64, 0,
 158                              vmstate_tlb_entry, SparcTLBEntry),
 159         VMSTATE_STRUCT_ARRAY(env.dtlb, SPARCCPU, 64, 0,
 160                              vmstate_tlb_entry, SparcTLBEntry),
 161         VMSTATE_UINT32(env.mmu_version, SPARCCPU),
 162         VMSTATE_STRUCT_ARRAY(env.ts, SPARCCPU, MAXTL_MAX, 0,
 163                              vmstate_trap_state, trap_state),
 164         VMSTATE_UINT32(env.xcc, SPARCCPU),
 165         VMSTATE_UINT32(env.asi, SPARCCPU),
 166         VMSTATE_UINT32(env.pstate, SPARCCPU),
 167         VMSTATE_UINT32(env.tl, SPARCCPU),
 168         VMSTATE_UINT32(env.cansave, SPARCCPU),
 169         VMSTATE_UINT32(env.canrestore, SPARCCPU),
 170         VMSTATE_UINT32(env.otherwin, SPARCCPU),
 171         VMSTATE_UINT32(env.wstate, SPARCCPU),
 172         VMSTATE_UINT32(env.cleanwin, SPARCCPU),
 173         VMSTATE_UINT64_ARRAY(env.agregs, SPARCCPU, 8),
 174         VMSTATE_UINT64_ARRAY(env.bgregs, SPARCCPU, 8),
 175         VMSTATE_UINT64_ARRAY(env.igregs, SPARCCPU, 8),
 176         VMSTATE_UINT64_ARRAY(env.mgregs, SPARCCPU, 8),
 177         VMSTATE_UINT64(env.fprs, SPARCCPU),
 178         VMSTATE_UINT64(env.tick_cmpr, SPARCCPU),
 179         VMSTATE_UINT64(env.stick_cmpr, SPARCCPU),
 180         VMSTATE_CPU_TIMER(env.tick, SPARCCPU),
 181         VMSTATE_CPU_TIMER(env.stick, SPARCCPU),
 182         VMSTATE_UINT64(env.gsr, SPARCCPU),
 183         VMSTATE_UINT32(env.gl, SPARCCPU),
 184         VMSTATE_UINT64(env.hpstate, SPARCCPU),
 185         VMSTATE_UINT64_ARRAY(env.htstate, SPARCCPU, MAXTL_MAX),
 186         VMSTATE_UINT64(env.hintp, SPARCCPU),
 187         VMSTATE_UINT64(env.htba, SPARCCPU),
 188         VMSTATE_UINT64(env.hver, SPARCCPU),
 189         VMSTATE_UINT64(env.hstick_cmpr, SPARCCPU),
 190         VMSTATE_UINT64(env.ssr, SPARCCPU),
 191         VMSTATE_CPU_TIMER(env.hstick, SPARCCPU),
 192         /* On SPARC32 env.psrpil and env.cwp are migrated as part of the PSR */
 193         VMSTATE_UINT32(env.psrpil, SPARCCPU),
 194         VMSTATE_UINT32(env.cwp, SPARCCPU),
 195 #endif
 196         VMSTATE_END_OF_LIST()
 197     },
 198 };