3858ff7639
The null-machine code used to be target specific since it used the
target-specific cpu_init() function in the past. But in the recent
commit 2278b93941d42c30e2950 ("Use cpu_create(type) instead of
cpu_init(cpu_model)") this has been change, so that the code now
uses the common cpu_create() function instead. Thus we can put
the null-machine into the common-obj list so that it is compiled
only once for all targets, to save some compilation time.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/*
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* Empty machine
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*
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* Copyright IBM, Corp. 2012
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qemu/error-report.h"
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#include "hw/hw.h"
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#include "hw/boards.h"
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#include "sysemu/sysemu.h"
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#include "exec/address-spaces.h"
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#include "qom/cpu.h"
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static void machine_none_init(MachineState *mch)
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{
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CPUState *cpu = NULL;
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/* Initialize CPU (if user asked for it) */
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if (mch->cpu_type) {
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cpu = cpu_create(mch->cpu_type);
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if (!cpu) {
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error_report("Unable to initialize CPU");
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exit(1);
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}
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}
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/* RAM at address zero */
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if (mch->ram_size) {
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MemoryRegion *ram = g_new(MemoryRegion, 1);
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memory_region_allocate_system_memory(ram, NULL, "ram", mch->ram_size);
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memory_region_add_subregion(get_system_memory(), 0, ram);
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}
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if (mch->kernel_filename) {
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error_report("The -kernel parameter is not supported "
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"(use the generic 'loader' device instead).");
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exit(1);
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}
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}
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static void machine_none_machine_init(MachineClass *mc)
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{
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mc->desc = "empty machine";
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mc->init = machine_none_init;
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mc->max_cpus = 1;
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mc->default_ram_size = 0;
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}
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DEFINE_MACHINE("none", machine_none_machine_init)
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