LXR qemu/hw/core/null-machine.c

   1/*
   2 * Empty machine
   3 *
   4 * Copyright IBM, Corp. 2012
   5 *
   6 * Authors:
   7 *  Anthony Liguori   <aliguori@us.ibm.com>
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10 * See the COPYING file in the top-level directory.
  11 *
  12 */
  13
  14#include "qemu/osdep.h"
  15#include "qemu/error-report.h"
  16#include "hw/boards.h"
  17#include "exec/address-spaces.h"
  18#include "hw/core/cpu.h"
  19
  20static void machine_none_init(MachineState *mch)
  21{
  22    CPUState *cpu = NULL;
  23
  24    /* Initialize CPU (if user asked for it) */
  25    if (mch->cpu_type) {
  26        cpu = cpu_create(mch->cpu_type);
  27        if (!cpu) {
  28            error_report("Unable to initialize CPU");
  29            exit(1);
  30        }
  31    }
  32
  33    /* RAM at address zero */
  34    if (mch->ram) {
  35        memory_region_add_subregion(get_system_memory(), 0, mch->ram);
  36    }
  37
  38    if (mch->kernel_filename) {
  39        error_report("The -kernel parameter is not supported "
  40                     "(use the generic 'loader' device instead).");
  41        exit(1);
  42    }
  43}
  44
  45static void machine_none_machine_init(MachineClass *mc)
  46{
  47    mc->desc = "empty machine";
  48    mc->init = machine_none_init;
  49    mc->max_cpus = 1;
  50    mc->default_ram_size = 0;
  51    mc->default_ram_id = "ram";
  52    mc->no_serial = 1;
  53    mc->no_parallel = 1;
  54    mc->no_floppy = 1;
  55    mc->no_cdrom = 1;
  56    mc->no_sdcard = 1;
  57}
  58
  59DEFINE_MACHINE("none", machine_none_machine_init)
  60