1 /* 2 * S390x machine definitions and functions 3 * 4 * Copyright IBM Corp. 2014, 2018 5 * 6 * Authors: 7 * Thomas Huth <thuth@linux.vnet.ibm.com> 8 * Christian Borntraeger <borntraeger@de.ibm.com> 9 * Jason J. Herne <jjherne@us.ibm.com> 10 * 11 * This work is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published 13 * by the Free Software Foundation; either version 2 of the License, 14 * or (at your option) any later version. 15 */ 16 17 #include "qemu/osdep.h" 18 #include "hw/hw.h" 19 #include "cpu.h" 20 #include "internal.h" 21 #include "kvm_s390x.h" 22 #include "tcg_s390x.h" 23 #include "sysemu/kvm.h" 24 25 static int cpu_post_load(void *opaque, int version_id) 26 { 27 S390CPU *cpu = opaque; 28 29 /* 30 * As the cpu state is pushed to kvm via kvm_set_mp_state rather 31 * than via cpu_synchronize_state, we need update kvm here. 32 */ 33 if (kvm_enabled()) { 34 kvm_s390_set_cpu_state(cpu, cpu->env.cpu_state); 35 return kvm_s390_vcpu_interrupt_post_load(cpu); 36 } 37 38 if (tcg_enabled()) { 39 /* Rearm the CKC timer if necessary */ 40 tcg_s390_tod_updated(CPU(cpu), RUN_ON_CPU_NULL); 41 } 42 43 return 0; 44 } 45 46 static int cpu_pre_save(void *opaque) 47 { 48 S390CPU *cpu = opaque; 49 50 if (kvm_enabled()) { 51 kvm_s390_vcpu_interrupt_pre_save(cpu); 52 } 53 54 return 0; 55 } 56 57 static inline bool fpu_needed(void *opaque) 58 { 59 /* This looks odd, but we might want to NOT transfer fprs in the future */ 60 return true; 61 } 62 63 static const VMStateDescription vmstate_fpu = { 64 .name = "cpu/fpu", 65 .version_id = 1, 66 .minimum_version_id = 1, 67 .needed = fpu_needed, 68 .fields = (VMStateField[]) { 69 VMSTATE_UINT64(env.vregs[0][0], S390CPU), 70 VMSTATE_UINT64(env.vregs[1][0], S390CPU), 71 VMSTATE_UINT64(env.vregs[2][0], S390CPU), 72 VMSTATE_UINT64(env.vregs[3][0], S390CPU), 73 VMSTATE_UINT64(env.vregs[4][0], S390CPU), 74 VMSTATE_UINT64(env.vregs[5][0], S390CPU), 75 VMSTATE_UINT64(env.vregs[6][0], S390CPU), 76 VMSTATE_UINT64(env.vregs[7][0], S390CPU), 77 VMSTATE_UINT64(env.vregs[8][0], S390CPU), 78 VMSTATE_UINT64(env.vregs[9][0], S390CPU), 79 VMSTATE_UINT64(env.vregs[10][0], S390CPU), 80 VMSTATE_UINT64(env.vregs[11][0], S390CPU), 81 VMSTATE_UINT64(env.vregs[12][0], S390CPU), 82 VMSTATE_UINT64(env.vregs[13][0], S390CPU), 83 VMSTATE_UINT64(env.vregs[14][0], S390CPU), 84 VMSTATE_UINT64(env.vregs[15][0], S390CPU), 85 VMSTATE_UINT32(env.fpc, S390CPU), 86 VMSTATE_END_OF_LIST() 87 } 88 }; 89 90 static bool vregs_needed(void *opaque) 91 { 92 return s390_has_feat(S390_FEAT_VECTOR); 93 } 94 95 static const VMStateDescription vmstate_vregs = { 96 .name = "cpu/vregs", 97 .version_id = 1, 98 .minimum_version_id = 1, 99 .needed = vregs_needed, 100 .fields = (VMStateField[]) { 101 /* vregs[0][0] -> vregs[15][0] and fregs are overlays */ 102 VMSTATE_UINT64(env.vregs[16][0], S390CPU), 103 VMSTATE_UINT64(env.vregs[17][0], S390CPU), 104 VMSTATE_UINT64(env.vregs[18][0], S390CPU), 105 VMSTATE_UINT64(env.vregs[19][0], S390CPU), 106 VMSTATE_UINT64(env.vregs[20][0], S390CPU), 107 VMSTATE_UINT64(env.vregs[21][0], S390CPU), 108 VMSTATE_UINT64(env.vregs[22][0], S390CPU), 109 VMSTATE_UINT64(env.vregs[23][0], S390CPU), 110 VMSTATE_UINT64(env.vregs[24][0], S390CPU), 111 VMSTATE_UINT64(env.vregs[25][0], S390CPU), 112 VMSTATE_UINT64(env.vregs[26][0], S390CPU), 113 VMSTATE_UINT64(env.vregs[27][0], S390CPU), 114 VMSTATE_UINT64(env.vregs[28][0], S390CPU), 115 VMSTATE_UINT64(env.vregs[29][0], S390CPU), 116 VMSTATE_UINT64(env.vregs[30][0], S390CPU), 117 VMSTATE_UINT64(env.vregs[31][0], S390CPU), 118 VMSTATE_UINT64(env.vregs[0][1], S390CPU), 119 VMSTATE_UINT64(env.vregs[1][1], S390CPU), 120 VMSTATE_UINT64(env.vregs[2][1], S390CPU), 121 VMSTATE_UINT64(env.vregs[3][1], S390CPU), 122 VMSTATE_UINT64(env.vregs[4][1], S390CPU), 123 VMSTATE_UINT64(env.vregs[5][1], S390CPU), 124 VMSTATE_UINT64(env.vregs[6][1], S390CPU), 125 VMSTATE_UINT64(env.vregs[7][1], S390CPU), 126 VMSTATE_UINT64(env.vregs[8][1], S390CPU), 127 VMSTATE_UINT64(env.vregs[9][1], S390CPU), 128 VMSTATE_UINT64(env.vregs[10][1], S390CPU), 129 VMSTATE_UINT64(env.vregs[11][1], S390CPU), 130 VMSTATE_UINT64(env.vregs[12][1], S390CPU), 131 VMSTATE_UINT64(env.vregs[13][1], S390CPU), 132 VMSTATE_UINT64(env.vregs[14][1], S390CPU), 133 VMSTATE_UINT64(env.vregs[15][1], S390CPU), 134 VMSTATE_UINT64(env.vregs[16][1], S390CPU), 135 VMSTATE_UINT64(env.vregs[17][1], S390CPU), 136 VMSTATE_UINT64(env.vregs[18][1], S390CPU), 137 VMSTATE_UINT64(env.vregs[19][1], S390CPU), 138 VMSTATE_UINT64(env.vregs[20][1], S390CPU), 139 VMSTATE_UINT64(env.vregs[21][1], S390CPU), 140 VMSTATE_UINT64(env.vregs[22][1], S390CPU), 141 VMSTATE_UINT64(env.vregs[23][1], S390CPU), 142 VMSTATE_UINT64(env.vregs[24][1], S390CPU), 143 VMSTATE_UINT64(env.vregs[25][1], S390CPU), 144 VMSTATE_UINT64(env.vregs[26][1], S390CPU), 145 VMSTATE_UINT64(env.vregs[27][1], S390CPU), 146 VMSTATE_UINT64(env.vregs[28][1], S390CPU), 147 VMSTATE_UINT64(env.vregs[29][1], S390CPU), 148 VMSTATE_UINT64(env.vregs[30][1], S390CPU), 149 VMSTATE_UINT64(env.vregs[31][1], S390CPU), 150 VMSTATE_END_OF_LIST() 151 } 152 }; 153 154 static bool riccb_needed(void *opaque) 155 { 156 return s390_has_feat(S390_FEAT_RUNTIME_INSTRUMENTATION); 157 } 158 159 const VMStateDescription vmstate_riccb = { 160 .name = "cpu/riccb", 161 .version_id = 1, 162 .minimum_version_id = 1, 163 .needed = riccb_needed, 164 .fields = (VMStateField[]) { 165 VMSTATE_UINT8_ARRAY(env.riccb, S390CPU, 64), 166 VMSTATE_END_OF_LIST() 167 } 168 }; 169 170 static bool exval_needed(void *opaque) 171 { 172 S390CPU *cpu = opaque; 173 return cpu->env.ex_value != 0; 174 } 175 176 const VMStateDescription vmstate_exval = { 177 .name = "cpu/exval", 178 .version_id = 1, 179 .minimum_version_id = 1, 180 .needed = exval_needed, 181 .fields = (VMStateField[]) { 182 VMSTATE_UINT64(env.ex_value, S390CPU), 183 VMSTATE_END_OF_LIST() 184 } 185 }; 186 187 static bool gscb_needed(void *opaque) 188 { 189 return s390_has_feat(S390_FEAT_GUARDED_STORAGE); 190 } 191 192 const VMStateDescription vmstate_gscb = { 193 .name = "cpu/gscb", 194 .version_id = 1, 195 .minimum_version_id = 1, 196 .needed = gscb_needed, 197 .fields = (VMStateField[]) { 198 VMSTATE_UINT64_ARRAY(env.gscb, S390CPU, 4), 199 VMSTATE_END_OF_LIST() 200 } 201 }; 202 203 static bool bpbc_needed(void *opaque) 204 { 205 return s390_has_feat(S390_FEAT_BPB); 206 } 207 208 const VMStateDescription vmstate_bpbc = { 209 .name = "cpu/bpbc", 210 .version_id = 1, 211 .minimum_version_id = 1, 212 .needed = bpbc_needed, 213 .fields = (VMStateField[]) { 214 VMSTATE_BOOL(env.bpbc, S390CPU), 215 VMSTATE_END_OF_LIST() 216 } 217 }; 218 219 static bool etoken_needed(void *opaque) 220 { 221 return s390_has_feat(S390_FEAT_ETOKEN); 222 } 223 224 const VMStateDescription vmstate_etoken = { 225 .name = "cpu/etoken", 226 .version_id = 1, 227 .minimum_version_id = 1, 228 .needed = etoken_needed, 229 .fields = (VMStateField[]) { 230 VMSTATE_UINT64(env.etoken, S390CPU), 231 VMSTATE_UINT64(env.etoken_extension, S390CPU), 232 VMSTATE_END_OF_LIST() 233 } 234 }; 235 236 const VMStateDescription vmstate_s390_cpu = { 237 .name = "cpu", 238 .post_load = cpu_post_load, 239 .pre_save = cpu_pre_save, 240 .version_id = 4, 241 .minimum_version_id = 3, 242 .fields = (VMStateField[]) { 243 VMSTATE_UINT64_ARRAY(env.regs, S390CPU, 16), 244 VMSTATE_UINT64(env.psw.mask, S390CPU), 245 VMSTATE_UINT64(env.psw.addr, S390CPU), 246 VMSTATE_UINT64(env.psa, S390CPU), 247 VMSTATE_UINT32(env.todpr, S390CPU), 248 VMSTATE_UINT64(env.pfault_token, S390CPU), 249 VMSTATE_UINT64(env.pfault_compare, S390CPU), 250 VMSTATE_UINT64(env.pfault_select, S390CPU), 251 VMSTATE_UINT64(env.cputm, S390CPU), 252 VMSTATE_UINT64(env.ckc, S390CPU), 253 VMSTATE_UINT64(env.gbea, S390CPU), 254 VMSTATE_UINT64(env.pp, S390CPU), 255 VMSTATE_UINT32_ARRAY(env.aregs, S390CPU, 16), 256 VMSTATE_UINT64_ARRAY(env.cregs, S390CPU, 16), 257 VMSTATE_UINT8(env.cpu_state, S390CPU), 258 VMSTATE_UINT8(env.sigp_order, S390CPU), 259 VMSTATE_UINT32_V(irqstate_saved_size, S390CPU, 4), 260 VMSTATE_VBUFFER_UINT32(irqstate, S390CPU, 4, NULL, 261 irqstate_saved_size), 262 VMSTATE_END_OF_LIST() 263 }, 264 .subsections = (const VMStateDescription*[]) { 265 &vmstate_fpu, 266 &vmstate_vregs, 267 &vmstate_riccb, 268 &vmstate_exval, 269 &vmstate_gscb, 270 &vmstate_bpbc, 271 &vmstate_etoken, 272 NULL 273 }, 274 }; 275