1 /* 2 * OpenRISC Machine 3 * 4 * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include "qemu/osdep.h" 21 #include "cpu.h" 22 #include "migration/cpu.h" 23 24 static const VMStateDescription vmstate_tlb_entry = { 25 .name = "tlb_entry", 26 .version_id = 1, 27 .minimum_version_id = 1, 28 .fields = (VMStateField[]) { 29 VMSTATE_UINTTL(mr, OpenRISCTLBEntry), 30 VMSTATE_UINTTL(tr, OpenRISCTLBEntry), 31 VMSTATE_END_OF_LIST() 32 } 33 }; 34 35 static const VMStateDescription vmstate_cpu_tlb = { 36 .name = "cpu_tlb", 37 .version_id = 2, 38 .minimum_version_id = 2, 39 .fields = (VMStateField[]) { 40 VMSTATE_STRUCT_ARRAY(itlb, CPUOpenRISCTLBContext, TLB_SIZE, 0, 41 vmstate_tlb_entry, OpenRISCTLBEntry), 42 VMSTATE_STRUCT_ARRAY(dtlb, CPUOpenRISCTLBContext, TLB_SIZE, 0, 43 vmstate_tlb_entry, OpenRISCTLBEntry), 44 VMSTATE_END_OF_LIST() 45 } 46 }; 47 48 static int get_sr(QEMUFile *f, void *opaque, size_t size, 49 const VMStateField *field) 50 { 51 CPUOpenRISCState *env = opaque; 52 cpu_set_sr(env, qemu_get_be32(f)); 53 return 0; 54 } 55 56 static int put_sr(QEMUFile *f, void *opaque, size_t size, 57 const VMStateField *field, JSONWriter *vmdesc) 58 { 59 CPUOpenRISCState *env = opaque; 60 qemu_put_be32(f, cpu_get_sr(env)); 61 return 0; 62 } 63 64 static const VMStateInfo vmstate_sr = { 65 .name = "sr", 66 .get = get_sr, 67 .put = put_sr, 68 }; 69 70 static const VMStateDescription vmstate_env = { 71 .name = "env", 72 .version_id = 6, 73 .minimum_version_id = 6, 74 .fields = (VMStateField[]) { 75 VMSTATE_UINTTL_2DARRAY(shadow_gpr, CPUOpenRISCState, 16, 32), 76 VMSTATE_UINTTL(pc, CPUOpenRISCState), 77 VMSTATE_UINTTL(ppc, CPUOpenRISCState), 78 VMSTATE_UINTTL(jmp_pc, CPUOpenRISCState), 79 VMSTATE_UINTTL(lock_addr, CPUOpenRISCState), 80 VMSTATE_UINTTL(lock_value, CPUOpenRISCState), 81 VMSTATE_UINTTL(epcr, CPUOpenRISCState), 82 VMSTATE_UINTTL(eear, CPUOpenRISCState), 83 84 /* Save the architecture value of the SR, not the internally 85 expanded version. Since this architecture value does not 86 exist in memory to be stored, this requires a but of hoop 87 jumping. We want OFFSET=0 so that we effectively pass ENV 88 to the helper functions, and we need to fill in the name by 89 hand since there's no field of that name. */ 90 { 91 .name = "sr", 92 .version_id = 0, 93 .size = sizeof(uint32_t), 94 .info = &vmstate_sr, 95 .flags = VMS_SINGLE, 96 .offset = 0 97 }, 98 99 VMSTATE_UINT32(vr, CPUOpenRISCState), 100 VMSTATE_UINT32(upr, CPUOpenRISCState), 101 VMSTATE_UINT32(cpucfgr, CPUOpenRISCState), 102 VMSTATE_UINT32(dmmucfgr, CPUOpenRISCState), 103 VMSTATE_UINT32(immucfgr, CPUOpenRISCState), 104 VMSTATE_UINT32(evbar, CPUOpenRISCState), 105 VMSTATE_UINT32(pmr, CPUOpenRISCState), 106 VMSTATE_UINT32(esr, CPUOpenRISCState), 107 VMSTATE_UINT32(fpcsr, CPUOpenRISCState), 108 VMSTATE_UINT64(mac, CPUOpenRISCState), 109 110 VMSTATE_STRUCT(tlb, CPUOpenRISCState, 1, 111 vmstate_cpu_tlb, CPUOpenRISCTLBContext), 112 113 VMSTATE_TIMER_PTR(timer, CPUOpenRISCState), 114 VMSTATE_UINT32(ttmr, CPUOpenRISCState), 115 116 VMSTATE_UINT32(picmr, CPUOpenRISCState), 117 VMSTATE_UINT32(picsr, CPUOpenRISCState), 118 119 VMSTATE_END_OF_LIST() 120 } 121 }; 122 123 static int cpu_post_load(void *opaque, int version_id) 124 { 125 OpenRISCCPU *cpu = opaque; 126 CPUOpenRISCState *env = &cpu->env; 127 128 /* Update env->fp_status to match env->fpcsr. */ 129 cpu_set_fpcsr(env, env->fpcsr); 130 return 0; 131 } 132 133 const VMStateDescription vmstate_openrisc_cpu = { 134 .name = "cpu", 135 .version_id = 1, 136 .minimum_version_id = 1, 137 .post_load = cpu_post_load, 138 .fields = (VMStateField[]) { 139 VMSTATE_CPU(), 140 VMSTATE_STRUCT(env, OpenRISCCPU, 1, vmstate_env, CPUOpenRISCState), 141 VMSTATE_END_OF_LIST() 142 } 143 }; 144