| 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/qemu-file-types.h" |
| 23 | #include "migration/vmstate.h" |
| 24 | |
| 25 | static const VMStateDescription vmstate_tlb_entry = { |
| 26 | .name = "tlb_entry", |
| 27 | .version_id = 1, |
| 28 | .minimum_version_id = 1, |
| 29 | .fields = (const VMStateField[]) { |
| 30 | VMSTATE_UINT32(mr, OpenRISCTLBEntry), |
| 31 | VMSTATE_UINT32(tr, OpenRISCTLBEntry), |
| 32 | VMSTATE_END_OF_LIST() |
| 33 | } |
| 34 | }; |
| 35 | |
| 36 | static const VMStateDescription vmstate_cpu_tlb = { |
| 37 | .name = "cpu_tlb", |
| 38 | .version_id = 2, |
| 39 | .minimum_version_id = 2, |
| 40 | .fields = (const VMStateField[]) { |
| 41 | VMSTATE_STRUCT_ARRAY(itlb, CPUOpenRISCTLBContext, TLB_SIZE, 0, |
| 42 | vmstate_tlb_entry, OpenRISCTLBEntry), |
| 43 | VMSTATE_STRUCT_ARRAY(dtlb, CPUOpenRISCTLBContext, TLB_SIZE, 0, |
| 44 | vmstate_tlb_entry, OpenRISCTLBEntry), |
| 45 | VMSTATE_END_OF_LIST() |
| 46 | } |
| 47 | }; |
| 48 | |
| 49 | static int get_sr(QEMUFile *f, void *opaque, size_t size, |
| 50 | const VMStateField *field) |
| 51 | { |
| 52 | CPUOpenRISCState *env = opaque; |
| 53 | cpu_set_sr(env, qemu_get_be32(f)); |
| 54 | return 0; |
| 55 | } |
| 56 | |
| 57 | static int put_sr(QEMUFile *f, void *opaque, size_t size, |
| 58 | const VMStateField *field, JSONWriter *vmdesc) |
| 59 | { |
| 60 | CPUOpenRISCState *env = opaque; |
| 61 | qemu_put_be32(f, cpu_get_sr(env)); |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | static const VMStateInfo vmstate_sr = { |
| 66 | .name = "sr", |
| 67 | .get = get_sr, |
| 68 | .put = put_sr, |
| 69 | }; |
| 70 | |
| 71 | static const VMStateDescription vmstate_env = { |
| 72 | .name = "env", |
| 73 | .version_id = 6, |
| 74 | .minimum_version_id = 6, |
| 75 | .fields = (const VMStateField[]) { |
| 76 | VMSTATE_UINT32_2DARRAY(shadow_gpr, CPUOpenRISCState, 16, 32), |
| 77 | VMSTATE_UINT32(pc, CPUOpenRISCState), |
| 78 | VMSTATE_UINT32(ppc, CPUOpenRISCState), |
| 79 | VMSTATE_UINT32(jmp_pc, CPUOpenRISCState), |
| 80 | VMSTATE_UINT32(lock_addr, CPUOpenRISCState), |
| 81 | VMSTATE_UINT32(lock_value, CPUOpenRISCState), |
| 82 | VMSTATE_UINT32(epcr, CPUOpenRISCState), |
| 83 | VMSTATE_UINT32(eear, CPUOpenRISCState), |
| 84 | |
| 85 | /* Save the architecture value of the SR, not the internally |
| 86 | expanded version. Since this architecture value does not |
| 87 | exist in memory to be stored, this requires a but of hoop |
| 88 | jumping. We want OFFSET=0 so that we effectively pass ENV |
| 89 | to the helper functions, and we need to fill in the name by |
| 90 | hand since there's no field of that name. */ |
| 91 | { |
| 92 | .name = "sr", |
| 93 | .version_id = 0, |
| 94 | .size = sizeof(uint32_t), |
| 95 | .info = &vmstate_sr, |
| 96 | .flags = VMS_SINGLE, |
| 97 | .offset = 0 |
| 98 | }, |
| 99 | |
| 100 | VMSTATE_UINT32(vr, CPUOpenRISCState), |
| 101 | VMSTATE_UINT32(upr, CPUOpenRISCState), |
| 102 | VMSTATE_UINT32(cpucfgr, CPUOpenRISCState), |
| 103 | VMSTATE_UINT32(dmmucfgr, CPUOpenRISCState), |
| 104 | VMSTATE_UINT32(immucfgr, CPUOpenRISCState), |
| 105 | VMSTATE_UINT32(evbar, CPUOpenRISCState), |
| 106 | VMSTATE_UINT32(pmr, CPUOpenRISCState), |
| 107 | VMSTATE_UINT32(esr, CPUOpenRISCState), |
| 108 | VMSTATE_UINT32(fpcsr, CPUOpenRISCState), |
| 109 | VMSTATE_UINT64(mac, CPUOpenRISCState), |
| 110 | |
| 111 | VMSTATE_STRUCT(tlb, CPUOpenRISCState, 1, |
| 112 | vmstate_cpu_tlb, CPUOpenRISCTLBContext), |
| 113 | |
| 114 | VMSTATE_TIMER_PTR(timer, CPUOpenRISCState), |
| 115 | VMSTATE_UINT32(ttmr, CPUOpenRISCState), |
| 116 | |
| 117 | VMSTATE_UINT32(picmr, CPUOpenRISCState), |
| 118 | VMSTATE_UINT32(picsr, CPUOpenRISCState), |
| 119 | |
| 120 | VMSTATE_END_OF_LIST() |
| 121 | } |
| 122 | }; |
| 123 | |
| 124 | static int cpu_post_load(void *opaque, int version_id) |
| 125 | { |
| 126 | OpenRISCCPU *cpu = opaque; |
| 127 | CPUOpenRISCState *env = &cpu->env; |
| 128 | |
| 129 | /* Update env->fp_status to match env->fpcsr. */ |
| 130 | cpu_set_fpcsr(env, env->fpcsr); |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | const VMStateDescription vmstate_openrisc_cpu = { |
| 135 | .name = "cpu", |
| 136 | .version_id = 1, |
| 137 | .minimum_version_id = 1, |
| 138 | .post_load = cpu_post_load, |
| 139 | .fields = (const VMStateField[]) { |
| 140 | VMSTATE_STRUCT(parent_obj, OpenRISCCPU, 0, vmstate_cpu_common, CPUState), |
| 141 | VMSTATE_STRUCT(env, OpenRISCCPU, 1, vmstate_env, CPUOpenRISCState), |
| 142 | VMSTATE_END_OF_LIST() |
| 143 | } |
| 144 | }; |