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 | |
21 | static 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 | |
49 | static 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 | |
57 | DEFINE_MACHINE("none", machine_none_machine_init) |
58 |