1 /* 2 * QEMU CPU model (system specific) 3 * 4 * Copyright (c) 2012-2014 SUSE LINUX Products GmbH 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 2 9 * of the License, or (at your option) any later version. 10 * 11 * This program 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 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, see 18 * <http://www.gnu.org/licenses/gpl-2.0.html> 19 */ 20 21 #include "qemu/osdep.h" 22 #include "qapi/error.h" 23 #include "exec/tswap.h" 24 #include "hw/core/sysemu-cpu-ops.h" 25 26 bool cpu_paging_enabled(const CPUState *cpu) 27 { 28 CPUClass *cc = CPU_GET_CLASS(cpu); 29 30 if (cc->sysemu_ops->get_paging_enabled) { 31 return cc->sysemu_ops->get_paging_enabled(cpu); 32 } 33 34 return false; 35 } 36 37 bool cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list, 38 Error **errp) 39 { 40 CPUClass *cc = CPU_GET_CLASS(cpu); 41 42 if (cc->sysemu_ops->get_memory_mapping) { 43 return cc->sysemu_ops->get_memory_mapping(cpu, list, errp); 44 } 45 46 error_setg(errp, "Obtaining memory mappings is unsupported on this CPU."); 47 return false; 48 } 49 50 hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr, 51 MemTxAttrs *attrs) 52 { 53 CPUClass *cc = CPU_GET_CLASS(cpu); 54 hwaddr paddr; 55 56 if (cc->sysemu_ops->get_phys_page_attrs_debug) { 57 paddr = cc->sysemu_ops->get_phys_page_attrs_debug(cpu, addr, attrs); 58 } else { 59 /* Fallback for CPUs which don't implement the _attrs_ hook */ 60 *attrs = MEMTXATTRS_UNSPECIFIED; 61 paddr = cc->sysemu_ops->get_phys_page_debug(cpu, addr); 62 } 63 /* Indicate that this is a debug access. */ 64 attrs->debug = 1; 65 return paddr; 66 } 67 68 hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr) 69 { 70 MemTxAttrs attrs = {}; 71 72 return cpu_get_phys_page_attrs_debug(cpu, addr, &attrs); 73 } 74 75 int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs) 76 { 77 int ret = 0; 78 79 if (cpu->cc->sysemu_ops->asidx_from_attrs) { 80 ret = cpu->cc->sysemu_ops->asidx_from_attrs(cpu, attrs); 81 assert(ret < cpu->num_ases && ret >= 0); 82 } 83 return ret; 84 } 85 86 int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu, 87 void *opaque) 88 { 89 CPUClass *cc = CPU_GET_CLASS(cpu); 90 91 if (!cc->sysemu_ops->write_elf32_qemunote) { 92 return 0; 93 } 94 return (*cc->sysemu_ops->write_elf32_qemunote)(f, cpu, opaque); 95 } 96 97 int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu, 98 int cpuid, void *opaque) 99 { 100 CPUClass *cc = CPU_GET_CLASS(cpu); 101 102 if (!cc->sysemu_ops->write_elf32_note) { 103 return -1; 104 } 105 return (*cc->sysemu_ops->write_elf32_note)(f, cpu, cpuid, opaque); 106 } 107 108 int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu, 109 void *opaque) 110 { 111 CPUClass *cc = CPU_GET_CLASS(cpu); 112 113 if (!cc->sysemu_ops->write_elf64_qemunote) { 114 return 0; 115 } 116 return (*cc->sysemu_ops->write_elf64_qemunote)(f, cpu, opaque); 117 } 118 119 int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu, 120 int cpuid, void *opaque) 121 { 122 CPUClass *cc = CPU_GET_CLASS(cpu); 123 124 if (!cc->sysemu_ops->write_elf64_note) { 125 return -1; 126 } 127 return (*cc->sysemu_ops->write_elf64_note)(f, cpu, cpuid, opaque); 128 } 129 130 bool cpu_virtio_is_big_endian(CPUState *cpu) 131 { 132 CPUClass *cc = CPU_GET_CLASS(cpu); 133 134 if (cc->sysemu_ops->virtio_is_big_endian) { 135 return cc->sysemu_ops->virtio_is_big_endian(cpu); 136 } 137 return target_words_bigendian(); 138 } 139 140 GuestPanicInformation *cpu_get_crash_info(CPUState *cpu) 141 { 142 CPUClass *cc = CPU_GET_CLASS(cpu); 143 GuestPanicInformation *res = NULL; 144 145 if (cc->sysemu_ops->get_crash_info) { 146 res = cc->sysemu_ops->get_crash_info(cpu); 147 } 148 return res; 149 } 150