1 /* 2 * S390x machine definitions and functions 3 * 4 * Copyright IBM Corp. 2014 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 "sysemu/kvm.h" 21 22 static int cpu_post_load(void *opaque, int version_id) 23 { 24 S390CPU *cpu = opaque; 25 26 /* 27 * As the cpu state is pushed to kvm via kvm_set_mp_state rather 28 * than via cpu_synchronize_state, we need update kvm here. 29 */ 30 if (kvm_enabled()) { 31 kvm_s390_set_cpu_state(cpu, cpu->env.cpu_state); 32 return kvm_s390_vcpu_interrupt_post_load(cpu); 33 } 34 35 return 0; 36 } 37 38 static void cpu_pre_save(void *opaque) 39 { 40 S390CPU *cpu = opaque; 41 42 if (kvm_enabled()) { 43 kvm_s390_vcpu_interrupt_pre_save(cpu); 44 } 45 } 46 47 static inline bool fpu_needed(void *opaque) 48 { 49 /* This looks odd, but we might want to NOT transfer fprs in the future */ 50 return true; 51 } 52 53 static const VMStateDescription vmstate_fpu = { 54 .name = "cpu/fpu", 55 .version_id = 1, 56 .minimum_version_id = 1, 57 .needed = fpu_needed, 58 .fields = (VMStateField[]) { 59 VMSTATE_UINT64(env.vregs[0][0].ll, S390CPU), 60 VMSTATE_UINT64(env.vregs[1][0].ll, S390CPU), 61 VMSTATE_UINT64(env.vregs[2][0].ll, S390CPU), 62 VMSTATE_UINT64(env.vregs[3][0].ll, S390CPU), 63 VMSTATE_UINT64(env.vregs[4][0].ll, S390CPU), 64 VMSTATE_UINT64(env.vregs[5][0].ll, S390CPU), 65 VMSTATE_UINT64(env.vregs[6][0].ll, S390CPU), 66 VMSTATE_UINT64(env.vregs[7][0].ll, S390CPU), 67 VMSTATE_UINT64(env.vregs[8][0].ll, S390CPU), 68 VMSTATE_UINT64(env.vregs[9][0].ll, S390CPU), 69 VMSTATE_UINT64(env.vregs[10][0].ll, S390CPU), 70 VMSTATE_UINT64(env.vregs[11][0].ll, S390CPU), 71 VMSTATE_UINT64(env.vregs[12][0].ll, S390CPU), 72 VMSTATE_UINT64(env.vregs[13][0].ll, S390CPU), 73 VMSTATE_UINT64(env.vregs[14][0].ll, S390CPU), 74 VMSTATE_UINT64(env.vregs[15][0].ll, S390CPU), 75 VMSTATE_UINT32(env.fpc, S390CPU), 76 VMSTATE_END_OF_LIST() 77 } 78 }; 79 80 static bool vregs_needed(void *opaque) 81 { 82 return s390_has_feat(S390_FEAT_VECTOR); 83 } 84 85 static const VMStateDescription vmstate_vregs = { 86 .name = "cpu/vregs", 87 .version_id = 1, 88 .minimum_version_id = 1, 89 .needed = vregs_needed, 90 .fields = (VMStateField[]) { 91 /* vregs[0][0] -> vregs[15][0] and fregs are overlays */ 92 VMSTATE_UINT64(env.vregs[16][0].ll, S390CPU), 93 VMSTATE_UINT64(env.vregs[17][0].ll, S390CPU), 94 VMSTATE_UINT64(env.vregs[18][0].ll, S390CPU), 95 VMSTATE_UINT64(env.vregs[19][0].ll, S390CPU), 96 VMSTATE_UINT64(env.vregs[20][0].ll, S390CPU), 97 VMSTATE_UINT64(env.vregs[21][0].ll, S390CPU), 98 VMSTATE_UINT64(env.vregs[22][0].ll, S390CPU), 99 VMSTATE_UINT64(env.vregs[23][0].ll, S390CPU), 100 VMSTATE_UINT64(env.vregs[24][0].ll, S390CPU), 101 VMSTATE_UINT64(env.vregs[25][0].ll, S390CPU), 102 VMSTATE_UINT64(env.vregs[26][0].ll, S390CPU), 103 VMSTATE_UINT64(env.vregs[27][0].ll, S390CPU), 104 VMSTATE_UINT64(env.vregs[28][0].ll, S390CPU), 105 VMSTATE_UINT64(env.vregs[29][0].ll, S390CPU), 106 VMSTATE_UINT64(env.vregs[30][0].ll, S390CPU), 107 VMSTATE_UINT64(env.vregs[31][0].ll, S390CPU), 108 VMSTATE_UINT64(env.vregs[0][1].ll, S390CPU), 109 VMSTATE_UINT64(env.vregs[1][1].ll, S390CPU), 110 VMSTATE_UINT64(env.vregs[2][1].ll, S390CPU), 111 VMSTATE_UINT64(env.vregs[3][1].ll, S390CPU), 112 VMSTATE_UINT64(env.vregs[4][1].ll, S390CPU), 113 VMSTATE_UINT64(env.vregs[5][1].ll, S390CPU), 114 VMSTATE_UINT64(env.vregs[6][1].ll, S390CPU), 115 VMSTATE_UINT64(env.vregs[7][1].ll, S390CPU), 116 VMSTATE_UINT64(env.vregs[8][1].ll, S390CPU), 117 VMSTATE_UINT64(env.vregs[9][1].ll, S390CPU), 118 VMSTATE_UINT64(env.vregs[10][1].ll, S390CPU), 119 VMSTATE_UINT64(env.vregs[11][1].ll, S390CPU), 120 VMSTATE_UINT64(env.vregs[12][1].ll, S390CPU), 121 VMSTATE_UINT64(env.vregs[13][1].ll, S390CPU), 122 VMSTATE_UINT64(env.vregs[14][1].ll, S390CPU), 123 VMSTATE_UINT64(env.vregs[15][1].ll, S390CPU), 124 VMSTATE_UINT64(env.vregs[16][1].ll, S390CPU), 125 VMSTATE_UINT64(env.vregs[17][1].ll, S390CPU), 126 VMSTATE_UINT64(env.vregs[18][1].ll, S390CPU), 127 VMSTATE_UINT64(env.vregs[19][1].ll, S390CPU), 128 VMSTATE_UINT64(env.vregs[20][1].ll, S390CPU), 129 VMSTATE_UINT64(env.vregs[21][1].ll, S390CPU), 130 VMSTATE_UINT64(env.vregs[22][1].ll, S390CPU), 131 VMSTATE_UINT64(env.vregs[23][1].ll, S390CPU), 132 VMSTATE_UINT64(env.vregs[24][1].ll, S390CPU), 133 VMSTATE_UINT64(env.vregs[25][1].ll, S390CPU), 134 VMSTATE_UINT64(env.vregs[26][1].ll, S390CPU), 135 VMSTATE_UINT64(env.vregs[27][1].ll, S390CPU), 136 VMSTATE_UINT64(env.vregs[28][1].ll, S390CPU), 137 VMSTATE_UINT64(env.vregs[29][1].ll, S390CPU), 138 VMSTATE_UINT64(env.vregs[30][1].ll, S390CPU), 139 VMSTATE_UINT64(env.vregs[31][1].ll, S390CPU), 140 VMSTATE_END_OF_LIST() 141 } 142 }; 143 144 static bool riccb_needed(void *opaque) 145 { 146 return s390_has_feat(S390_FEAT_RUNTIME_INSTRUMENTATION); 147 } 148 149 const VMStateDescription vmstate_riccb = { 150 .name = "cpu/riccb", 151 .version_id = 1, 152 .minimum_version_id = 1, 153 .needed = riccb_needed, 154 .fields = (VMStateField[]) { 155 VMSTATE_UINT8_ARRAY(env.riccb, S390CPU, 64), 156 VMSTATE_END_OF_LIST() 157 } 158 }; 159 160 static bool exval_needed(void *opaque) 161 { 162 S390CPU *cpu = opaque; 163 return cpu->env.ex_value != 0; 164 } 165 166 const VMStateDescription vmstate_exval = { 167 .name = "cpu/exval", 168 .version_id = 1, 169 .minimum_version_id = 1, 170 .needed = exval_needed, 171 .fields = (VMStateField[]) { 172 VMSTATE_UINT64(env.ex_value, S390CPU), 173 VMSTATE_END_OF_LIST() 174 } 175 }; 176 177 static bool gscb_needed(void *opaque) 178 { 179 return kvm_s390_get_gs(); 180 } 181 182 const VMStateDescription vmstate_gscb = { 183 .name = "cpu/gscb", 184 .version_id = 1, 185 .minimum_version_id = 1, 186 .needed = gscb_needed, 187 .fields = (VMStateField[]) { 188 VMSTATE_UINT64_ARRAY(env.gscb, S390CPU, 4), 189 VMSTATE_END_OF_LIST() 190 } 191 }; 192 193 const VMStateDescription vmstate_s390_cpu = { 194 .name = "cpu", 195 .post_load = cpu_post_load, 196 .pre_save = cpu_pre_save, 197 .version_id = 4, 198 .minimum_version_id = 3, 199 .fields = (VMStateField[]) { 200 VMSTATE_UINT64_ARRAY(env.regs, S390CPU, 16), 201 VMSTATE_UINT64(env.psw.mask, S390CPU), 202 VMSTATE_UINT64(env.psw.addr, S390CPU), 203 VMSTATE_UINT64(env.psa, S390CPU), 204 VMSTATE_UINT32(env.todpr, S390CPU), 205 VMSTATE_UINT64(env.pfault_token, S390CPU), 206 VMSTATE_UINT64(env.pfault_compare, S390CPU), 207 VMSTATE_UINT64(env.pfault_select, S390CPU), 208 VMSTATE_UINT64(env.cputm, S390CPU), 209 VMSTATE_UINT64(env.ckc, S390CPU), 210 VMSTATE_UINT64(env.gbea, S390CPU), 211 VMSTATE_UINT64(env.pp, S390CPU), 212 VMSTATE_UINT32_ARRAY(env.aregs, S390CPU, 16), 213 VMSTATE_UINT64_ARRAY(env.cregs, S390CPU, 16), 214 VMSTATE_UINT8(env.cpu_state, S390CPU), 215 VMSTATE_UINT8(env.sigp_order, S390CPU), 216 VMSTATE_UINT32_V(irqstate_saved_size, S390CPU, 4), 217 VMSTATE_VBUFFER_UINT32(irqstate, S390CPU, 4, NULL, 218 irqstate_saved_size), 219 VMSTATE_END_OF_LIST() 220 }, 221 .subsections = (const VMStateDescription*[]) { 222 &vmstate_fpu, 223 &vmstate_vregs, 224 &vmstate_riccb, 225 &vmstate_exval, 226 &vmstate_gscb, 227 NULL 228 }, 229 }; 230