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 20 static 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 45 static 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 59 DEFINE_MACHINE("none", machine_none_machine_init) 60