LXR qemu/hw/core/cpu-sysemu.c

   1/*
   2 * QEMU CPU model (system emulation 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 "hw/core/cpu.h"
  24#include "hw/core/sysemu-cpu-ops.h"
  25
  26bool 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
  37void 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        cc->sysemu_ops->get_memory_mapping(cpu, list, errp);
  44        return;
  45    }
  46
  47    error_setg(errp, "Obtaining memory mappings is unsupported on this CPU.");
  48}
  49
  50hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr,
  51                                     MemTxAttrs *attrs)
  52{
  53    CPUClass *cc = CPU_GET_CLASS(cpu);
  54
  55    if (cc->sysemu_ops->get_phys_page_attrs_debug) {
  56        return cc->sysemu_ops->get_phys_page_attrs_debug(cpu, addr, attrs);
  57    }
  58    /* Fallback for CPUs which don't implement the _attrs_ hook */
  59    *attrs = MEMTXATTRS_UNSPECIFIED;
  60    return cc->sysemu_ops->get_phys_page_debug(cpu, addr);
  61}
  62
  63hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr)
  64{
  65    MemTxAttrs attrs = {};
  66
  67    return cpu_get_phys_page_attrs_debug(cpu, addr, &attrs);
  68}
  69
  70int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs)
  71{
  72    CPUClass *cc = CPU_GET_CLASS(cpu);
  73    int ret = 0;
  74
  75    if (cc->sysemu_ops->asidx_from_attrs) {
  76        ret = cc->sysemu_ops->asidx_from_attrs(cpu, attrs);
  77        assert(ret < cpu->num_ases && ret >= 0);
  78    }
  79    return ret;
  80}
  81
  82int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
  83                             void *opaque)
  84{
  85    CPUClass *cc = CPU_GET_CLASS(cpu);
  86
  87    if (!cc->sysemu_ops->write_elf32_qemunote) {
  88        return 0;
  89    }
  90    return (*cc->sysemu_ops->write_elf32_qemunote)(f, cpu, opaque);
  91}
  92
  93int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu,
  94                         int cpuid, void *opaque)
  95{
  96    CPUClass *cc = CPU_GET_CLASS(cpu);
  97
  98    if (!cc->sysemu_ops->write_elf32_note) {
  99        return -1;
 100    }
 101    return (*cc->sysemu_ops->write_elf32_note)(f, cpu, cpuid, opaque);
 102}
 103
 104int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu,
 105                             void *opaque)
 106{
 107    CPUClass *cc = CPU_GET_CLASS(cpu);
 108
 109    if (!cc->sysemu_ops->write_elf64_qemunote) {
 110        return 0;
 111    }
 112    return (*cc->sysemu_ops->write_elf64_qemunote)(f, cpu, opaque);
 113}
 114
 115int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu,
 116                         int cpuid, void *opaque)
 117{
 118    CPUClass *cc = CPU_GET_CLASS(cpu);
 119
 120    if (!cc->sysemu_ops->write_elf64_note) {
 121        return -1;
 122    }
 123    return (*cc->sysemu_ops->write_elf64_note)(f, cpu, cpuid, opaque);
 124}
 125
 126bool cpu_virtio_is_big_endian(CPUState *cpu)
 127{
 128    CPUClass *cc = CPU_GET_CLASS(cpu);
 129
 130    if (cc->sysemu_ops->virtio_is_big_endian) {
 131        return cc->sysemu_ops->virtio_is_big_endian(cpu);
 132    }
 133    return target_words_bigendian();
 134}
 135
 136GuestPanicInformation *cpu_get_crash_info(CPUState *cpu)
 137{
 138    CPUClass *cc = CPU_GET_CLASS(cpu);
 139    GuestPanicInformation *res = NULL;
 140
 141    if (cc->sysemu_ops->get_crash_info) {
 142        res = cc->sysemu_ops->get_crash_info(cpu);
 143    }
 144    return res;
 145}
 146