1 /* 2 * HPPA interrupt helper routines 3 * 4 * Copyright (c) 2017 Richard Henderson 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 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 #if TARGET_REGISTER_BITS == 64 25 #define qemu_put_betr qemu_put_be64 26 #define qemu_get_betr qemu_get_be64 27 #define VMSTATE_UINTTL_V(_f, _s, _v) \ 28 VMSTATE_UINT64_V(_f, _s, _v) 29 #define VMSTATE_UINTTL_ARRAY_V(_f, _s, _n, _v) \ 30 VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) 31 #else 32 #define qemu_put_betr qemu_put_be32 33 #define qemu_get_betr qemu_get_be32 34 #define VMSTATE_UINTTR_V(_f, _s, _v) \ 35 VMSTATE_UINT32_V(_f, _s, _v) 36 #define VMSTATE_UINTTR_ARRAY_V(_f, _s, _n, _v) \ 37 VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) 38 #endif 39 40 #define VMSTATE_UINTTR(_f, _s) \ 41 VMSTATE_UINTTR_V(_f, _s, 0) 42 #define VMSTATE_UINTTR_ARRAY(_f, _s, _n) \ 43 VMSTATE_UINTTR_ARRAY_V(_f, _s, _n, 0) 44 45 46 static int get_psw(QEMUFile *f, void *opaque, size_t size, 47 const VMStateField *field) 48 { 49 CPUHPPAState *env = opaque; 50 cpu_hppa_put_psw(env, qemu_get_betr(f)); 51 return 0; 52 } 53 54 static int put_psw(QEMUFile *f, void *opaque, size_t size, 55 const VMStateField *field, QJSON *vmdesc) 56 { 57 CPUHPPAState *env = opaque; 58 qemu_put_betr(f, cpu_hppa_get_psw(env)); 59 return 0; 60 } 61 62 static const VMStateInfo vmstate_psw = { 63 .name = "psw", 64 .get = get_psw, 65 .put = put_psw, 66 }; 67 68 /* FIXME: Use the PA2.0 format, which is a superset of the PA1.1 format. */ 69 static int get_tlb(QEMUFile *f, void *opaque, size_t size, 70 const VMStateField *field) 71 { 72 hppa_tlb_entry *ent = opaque; 73 uint32_t val; 74 75 memset(ent, 0, sizeof(*ent)); 76 77 ent->va_b = qemu_get_be64(f); 78 ent->pa = qemu_get_betr(f); 79 val = qemu_get_be32(f); 80 81 ent->entry_valid = extract32(val, 0, 1); 82 ent->access_id = extract32(val, 1, 18); 83 ent->u = extract32(val, 19, 1); 84 ent->ar_pl2 = extract32(val, 20, 2); 85 ent->ar_pl1 = extract32(val, 22, 2); 86 ent->ar_type = extract32(val, 24, 3); 87 ent->b = extract32(val, 27, 1); 88 ent->d = extract32(val, 28, 1); 89 ent->t = extract32(val, 29, 1); 90 91 ent->va_e = ent->va_b + TARGET_PAGE_SIZE - 1; 92 return 0; 93 } 94 95 static int put_tlb(QEMUFile *f, void *opaque, size_t size, 96 const VMStateField *field, QJSON *vmdesc) 97 { 98 hppa_tlb_entry *ent = opaque; 99 uint32_t val = 0; 100 101 if (ent->entry_valid) { 102 val = 1; 103 val = deposit32(val, 1, 18, ent->access_id); 104 val = deposit32(val, 19, 1, ent->u); 105 val = deposit32(val, 20, 2, ent->ar_pl2); 106 val = deposit32(val, 22, 2, ent->ar_pl1); 107 val = deposit32(val, 24, 3, ent->ar_type); 108 val = deposit32(val, 27, 1, ent->b); 109 val = deposit32(val, 28, 1, ent->d); 110 val = deposit32(val, 29, 1, ent->t); 111 } 112 113 qemu_put_be64(f, ent->va_b); 114 qemu_put_betr(f, ent->pa); 115 qemu_put_be32(f, val); 116 return 0; 117 } 118 119 static const VMStateInfo vmstate_tlb = { 120 .name = "tlb entry", 121 .get = get_tlb, 122 .put = put_tlb, 123 }; 124 125 static VMStateField vmstate_env_fields[] = { 126 VMSTATE_UINTTR_ARRAY(gr, CPUHPPAState, 32), 127 VMSTATE_UINT64_ARRAY(fr, CPUHPPAState, 32), 128 VMSTATE_UINT64_ARRAY(sr, CPUHPPAState, 8), 129 VMSTATE_UINTTR_ARRAY(cr, CPUHPPAState, 32), 130 VMSTATE_UINTTR_ARRAY(cr_back, CPUHPPAState, 2), 131 VMSTATE_UINTTR_ARRAY(shadow, CPUHPPAState, 7), 132 133 /* Save the architecture value of the psw, not the internally 134 expanded version. Since this architecture value does not 135 exist in memory to be stored, this requires a but of hoop 136 jumping. We want OFFSET=0 so that we effectively pass ENV 137 to the helper functions, and we need to fill in the name by 138 hand since there's no field of that name. */ 139 { 140 .name = "psw", 141 .version_id = 0, 142 .size = sizeof(uint64_t), 143 .info = &vmstate_psw, 144 .flags = VMS_SINGLE, 145 .offset = 0 146 }, 147 148 VMSTATE_UINTTR(iaoq_f, CPUHPPAState), 149 VMSTATE_UINTTR(iaoq_b, CPUHPPAState), 150 VMSTATE_UINT64(iasq_f, CPUHPPAState), 151 VMSTATE_UINT64(iasq_b, CPUHPPAState), 152 153 VMSTATE_UINT32(fr0_shadow, CPUHPPAState), 154 155 VMSTATE_ARRAY(tlb, CPUHPPAState, ARRAY_SIZE(((CPUHPPAState *)0)->tlb), 156 0, vmstate_tlb, hppa_tlb_entry), 157 VMSTATE_UINT32(tlb_last, CPUHPPAState), 158 159 VMSTATE_END_OF_LIST() 160 }; 161 162 static const VMStateDescription vmstate_env = { 163 .name = "env", 164 .version_id = 1, 165 .minimum_version_id = 1, 166 .fields = vmstate_env_fields, 167 }; 168 169 static VMStateField vmstate_cpu_fields[] = { 170 VMSTATE_CPU(), 171 VMSTATE_STRUCT(env, HPPACPU, 1, vmstate_env, CPUHPPAState), 172 VMSTATE_END_OF_LIST() 173 }; 174 175 const VMStateDescription vmstate_hppa_cpu = { 176 .name = "cpu", 177 .version_id = 1, 178 .minimum_version_id = 1, 179 .fields = vmstate_cpu_fields, 180 }; 181