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 "hw/hw.h" 23 #include "hw/boards.h" 24 #include "migration/cpu.h" 25 26 static const VMStateDescription vmstate_tlb_entry = { 27 .name = "tlb_entry", 28 .version_id = 1, 29 .minimum_version_id = 1, 30 .minimum_version_id_old = 1, 31 .fields = (VMStateField[]) { 32 VMSTATE_UINTTL(mr, OpenRISCTLBEntry), 33 VMSTATE_UINTTL(tr, OpenRISCTLBEntry), 34 VMSTATE_END_OF_LIST() 35 } 36 }; 37 38 static const VMStateDescription vmstate_cpu_tlb = { 39 .name = "cpu_tlb", 40 .version_id = 2, 41 .minimum_version_id = 2, 42 .fields = (VMStateField[]) { 43 VMSTATE_STRUCT_ARRAY(itlb, CPUOpenRISCTLBContext, TLB_SIZE, 0, 44 vmstate_tlb_entry, OpenRISCTLBEntry), 45 VMSTATE_STRUCT_ARRAY(dtlb, CPUOpenRISCTLBContext, TLB_SIZE, 0, 46 vmstate_tlb_entry, OpenRISCTLBEntry), 47 VMSTATE_END_OF_LIST() 48 } 49 }; 50 51 static int get_sr(QEMUFile *f, void *opaque, size_t size, 52 const VMStateField *field) 53 { 54 CPUOpenRISCState *env = opaque; 55 cpu_set_sr(env, qemu_get_be32(f)); 56 return 0; 57 } 58 59 static int put_sr(QEMUFile *f, void *opaque, size_t size, 60 const VMStateField *field, QJSON *vmdesc) 61 { 62 CPUOpenRISCState *env = opaque; 63 qemu_put_be32(f, cpu_get_sr(env)); 64 return 0; 65 } 66 67 static const VMStateInfo vmstate_sr = { 68 .name = "sr", 69 .get = get_sr, 70 .put = put_sr, 71 }; 72 73 static const VMStateDescription vmstate_env = { 74 .name = "env", 75 .version_id = 6, 76 .minimum_version_id = 6, 77 .fields = (VMStateField[]) { 78 VMSTATE_UINTTL_2DARRAY(shadow_gpr, CPUOpenRISCState, 16, 32), 79 VMSTATE_UINTTL(pc, CPUOpenRISCState), 80 VMSTATE_UINTTL(ppc, CPUOpenRISCState), 81 VMSTATE_UINTTL(jmp_pc, CPUOpenRISCState), 82 VMSTATE_UINTTL(lock_addr, CPUOpenRISCState), 83 VMSTATE_UINTTL(lock_value, CPUOpenRISCState), 84 VMSTATE_UINTTL(epcr, CPUOpenRISCState), 85 VMSTATE_UINTTL(eear, CPUOpenRISCState), 86 87 /* Save the architecture value of the SR, not the internally 88 expanded version. Since this architecture value does not 89 exist in memory to be stored, this requires a but of hoop 90 jumping. We want OFFSET=0 so that we effectively pass ENV 91 to the helper functions, and we need to fill in the name by 92 hand since there's no field of that name. */ 93 { 94 .name = "sr", 95 .version_id = 0, 96 .size = sizeof(uint32_t), 97 .info = &vmstate_sr, 98 .flags = VMS_SINGLE, 99 .offset = 0 100 }, 101 102 VMSTATE_UINT32(vr, CPUOpenRISCState), 103 VMSTATE_UINT32(upr, CPUOpenRISCState), 104 VMSTATE_UINT32(cpucfgr, CPUOpenRISCState), 105 VMSTATE_UINT32(dmmucfgr, CPUOpenRISCState), 106 VMSTATE_UINT32(immucfgr, CPUOpenRISCState), 107 VMSTATE_UINT32(evbar, CPUOpenRISCState), 108 VMSTATE_UINT32(pmr, CPUOpenRISCState), 109 VMSTATE_UINT32(esr, CPUOpenRISCState), 110 VMSTATE_UINT32(fpcsr, CPUOpenRISCState), 111 VMSTATE_UINT64(mac, CPUOpenRISCState), 112 113 VMSTATE_STRUCT(tlb, CPUOpenRISCState, 1, 114 vmstate_cpu_tlb, CPUOpenRISCTLBContext), 115 116 VMSTATE_TIMER_PTR(timer, CPUOpenRISCState), 117 VMSTATE_UINT32(ttmr, CPUOpenRISCState), 118 119 VMSTATE_UINT32(picmr, CPUOpenRISCState), 120 VMSTATE_UINT32(picsr, CPUOpenRISCState), 121 122 VMSTATE_END_OF_LIST() 123 } 124 }; 125 126 const VMStateDescription vmstate_openrisc_cpu = { 127 .name = "cpu", 128 .version_id = 1, 129 .minimum_version_id = 1, 130 .fields = (VMStateField[]) { 131 VMSTATE_CPU(), 132 VMSTATE_STRUCT(env, OpenRISCCPU, 1, vmstate_env, CPUOpenRISCState), 133 VMSTATE_END_OF_LIST() 134 } 135 }; 136