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 = (const 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 = (const 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 = (const 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 #ifdef TARGET_SPARC64 87 static int get_xcc(QEMUFile *f, void *opaque, size_t size, 88 const VMStateField *field) 89 { 90 SPARCCPU *cpu = opaque; 91 CPUSPARCState *env = &cpu->env; 92 uint32_t val = qemu_get_be32(f); 93 94 /* Do not clobber icc.[NV] */ 95 env->cc_N = deposit64(env->cc_N, 32, 32, -(val & PSR_NEG)); 96 env->cc_V = deposit64(env->cc_V, 32, 32, -(val & PSR_OVF)); 97 env->xcc_Z = ~val & PSR_ZERO; 98 env->xcc_C = (val >> PSR_CARRY_SHIFT) & 1; 99 100 return 0; 101 } 102 103 static int put_xcc(QEMUFile *f, void *opaque, size_t size, 104 const VMStateField *field, JSONWriter *vmdesc) 105 { 106 SPARCCPU *cpu = opaque; 107 CPUSPARCState *env = &cpu->env; 108 uint32_t val = cpu_get_ccr(env); 109 110 /* Extract just xcc out of ccr and shift into legacy position. */ 111 qemu_put_be32(f, (val & 0xf0) << (20 - 4)); 112 return 0; 113 } 114 115 static const VMStateInfo vmstate_xcc = { 116 .name = "xcc", 117 .get = get_xcc, 118 .put = put_xcc, 119 }; 120 #endif 121 122 static int cpu_pre_save(void *opaque) 123 { 124 SPARCCPU *cpu = opaque; 125 CPUSPARCState *env = &cpu->env; 126 127 /* if env->cwp == env->nwindows - 1, this will set the ins of the last 128 * window as the outs of the first window 129 */ 130 cpu_set_cwp(env, env->cwp); 131 132 return 0; 133 } 134 135 /* 32-bit SPARC retains migration compatibility with older versions 136 * of QEMU; 64-bit SPARC has had a migration break since then, so the 137 * versions are different. 138 */ 139 #ifndef TARGET_SPARC64 140 #define SPARC_VMSTATE_VER 7 141 #else 142 #define SPARC_VMSTATE_VER 9 143 #endif 144 145 const VMStateDescription vmstate_sparc_cpu = { 146 .name = "cpu", 147 .version_id = SPARC_VMSTATE_VER, 148 .minimum_version_id = SPARC_VMSTATE_VER, 149 .pre_save = cpu_pre_save, 150 .fields = (const VMStateField[]) { 151 VMSTATE_UINTTL_ARRAY(env.gregs, SPARCCPU, 8), 152 VMSTATE_UINT32(env.nwindows, SPARCCPU), 153 VMSTATE_VARRAY_MULTIPLY(env.regbase, SPARCCPU, env.nwindows, 16, 154 vmstate_info_uinttl, target_ulong), 155 VMSTATE_CPUDOUBLE_ARRAY(env.fpr, SPARCCPU, TARGET_DPREGS), 156 VMSTATE_UINTTL(env.pc, SPARCCPU), 157 VMSTATE_UINTTL(env.npc, SPARCCPU), 158 VMSTATE_UINTTL(env.y, SPARCCPU), 159 { 160 161 .name = "psr", 162 .version_id = 0, 163 .size = sizeof(uint32_t), 164 .info = &vmstate_psr, 165 .flags = VMS_SINGLE, 166 .offset = 0, 167 }, 168 VMSTATE_UINTTL(env.fsr, SPARCCPU), 169 VMSTATE_UINTTL(env.tbr, SPARCCPU), 170 VMSTATE_INT32(env.interrupt_index, SPARCCPU), 171 VMSTATE_UINT32(env.pil_in, SPARCCPU), 172 #ifndef TARGET_SPARC64 173 /* MMU */ 174 VMSTATE_UINT32(env.wim, SPARCCPU), 175 VMSTATE_UINT32_ARRAY(env.mmuregs, SPARCCPU, 32), 176 VMSTATE_UINT64_ARRAY(env.mxccdata, SPARCCPU, 4), 177 VMSTATE_UINT64_ARRAY(env.mxccregs, SPARCCPU, 8), 178 VMSTATE_UINT32(env.mmubpctrv, SPARCCPU), 179 VMSTATE_UINT32(env.mmubpctrc, SPARCCPU), 180 VMSTATE_UINT32(env.mmubpctrs, SPARCCPU), 181 VMSTATE_UINT64(env.mmubpaction, SPARCCPU), 182 VMSTATE_UINT64_ARRAY(env.mmubpregs, SPARCCPU, 4), 183 #else 184 VMSTATE_UINT64(env.lsu, SPARCCPU), 185 VMSTATE_UINT64_ARRAY(env.immu.mmuregs, SPARCCPU, 16), 186 VMSTATE_UINT64_ARRAY(env.dmmu.mmuregs, SPARCCPU, 16), 187 VMSTATE_STRUCT_ARRAY(env.itlb, SPARCCPU, 64, 0, 188 vmstate_tlb_entry, SparcTLBEntry), 189 VMSTATE_STRUCT_ARRAY(env.dtlb, SPARCCPU, 64, 0, 190 vmstate_tlb_entry, SparcTLBEntry), 191 VMSTATE_UINT32(env.mmu_version, SPARCCPU), 192 VMSTATE_STRUCT_ARRAY(env.ts, SPARCCPU, MAXTL_MAX, 0, 193 vmstate_trap_state, trap_state), 194 { 195 .name = "xcc", 196 .version_id = 0, 197 .size = sizeof(uint32_t), 198 .info = &vmstate_xcc, 199 .flags = VMS_SINGLE, 200 .offset = 0, 201 }, 202 VMSTATE_UINT32(env.asi, SPARCCPU), 203 VMSTATE_UINT32(env.pstate, SPARCCPU), 204 VMSTATE_UINT32(env.tl, SPARCCPU), 205 VMSTATE_UINT32(env.cansave, SPARCCPU), 206 VMSTATE_UINT32(env.canrestore, SPARCCPU), 207 VMSTATE_UINT32(env.otherwin, SPARCCPU), 208 VMSTATE_UINT32(env.wstate, SPARCCPU), 209 VMSTATE_UINT32(env.cleanwin, SPARCCPU), 210 VMSTATE_UINT64_ARRAY(env.agregs, SPARCCPU, 8), 211 VMSTATE_UINT64_ARRAY(env.bgregs, SPARCCPU, 8), 212 VMSTATE_UINT64_ARRAY(env.igregs, SPARCCPU, 8), 213 VMSTATE_UINT64_ARRAY(env.mgregs, SPARCCPU, 8), 214 VMSTATE_UNUSED(4), /* was unused high half of uint64_t fprs */ 215 VMSTATE_UINT32(env.fprs, SPARCCPU), 216 VMSTATE_UINT64(env.tick_cmpr, SPARCCPU), 217 VMSTATE_UINT64(env.stick_cmpr, SPARCCPU), 218 VMSTATE_CPU_TIMER(env.tick, SPARCCPU), 219 VMSTATE_CPU_TIMER(env.stick, SPARCCPU), 220 VMSTATE_UINT64(env.gsr, SPARCCPU), 221 VMSTATE_UINT32(env.gl, SPARCCPU), 222 VMSTATE_UINT64(env.hpstate, SPARCCPU), 223 VMSTATE_UINT64_ARRAY(env.htstate, SPARCCPU, MAXTL_MAX), 224 VMSTATE_UINT64(env.hintp, SPARCCPU), 225 VMSTATE_UINT64(env.htba, SPARCCPU), 226 VMSTATE_UINT64(env.hver, SPARCCPU), 227 VMSTATE_UINT64(env.hstick_cmpr, SPARCCPU), 228 VMSTATE_UINT64(env.ssr, SPARCCPU), 229 VMSTATE_CPU_TIMER(env.hstick, SPARCCPU), 230 /* On SPARC32 env.psrpil and env.cwp are migrated as part of the PSR */ 231 VMSTATE_UINT32(env.psrpil, SPARCCPU), 232 VMSTATE_UINT32(env.cwp, SPARCCPU), 233 #endif 234 VMSTATE_END_OF_LIST() 235 }, 236 }; 237