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 "sysemu/sysemu.h"
18#include "exec/address-spaces.h"
19#include "hw/core/cpu.h"
20
21static void machine_none_init(MachineState *mch)
22{
23 CPUState *cpu = NULL;
24
25 /* Initialize CPU (if user asked for it) */
26 if (mch->cpu_type) {
27 cpu = cpu_create(mch->cpu_type);
28 if (!cpu) {
29 error_report("Unable to initialize CPU");
30 exit(1);
31 }
32 }
33
34 /* RAM at address zero */
35 if (mch->ram_size) {
36 MemoryRegion *ram = g_new(MemoryRegion, 1);
37
38 memory_region_allocate_system_memory(ram, NULL, "ram", mch->ram_size);
39 memory_region_add_subregion(get_system_memory(), 0, ram);
40 }
41
42 if (mch->kernel_filename) {
43 error_report("The -kernel parameter is not supported "
44 "(use the generic 'loader' device instead).");
45 exit(1);
46 }
47}
48
49static void machine_none_machine_init(MachineClass *mc)
50{
51 mc->desc = "empty machine";
52 mc->init = machine_none_init;
53 mc->max_cpus = 1;
54 mc->default_ram_size = 0;
55}
56
57DEFINE_MACHINE("none", machine_none_machine_init)
58