qemu/hw/core/null-machine.c
Igor Mammedov 2278b93941 Use cpu_create(type) instead of cpu_init(cpu_model)
With all targets defining CPU_RESOLVING_TYPE, refactor
cpu_parse_cpu_model(type, cpu_model) to parse_cpu_model(cpu_model)
so that callers won't have to know internal resolving cpu
type. Place it in exec.c so it could be called from both
target independed vl.c and *-user/main.c.

That allows us to stop abusing cpu type from
  MachineClass::default_cpu_type
as resolver class in vl.c which were confusing part of
cpu_parse_cpu_model().

Also with new parse_cpu_model(), the last users of cpu_init()
in null-machine.c and bsd/linux-user targets could be switched
to cpu_create() API and cpu_init() API will be removed by
follow up patch.

With no longer users left remove MachineState::cpu_model field,
new code should use MachineState::cpu_type instead and
leave cpu_model parsing to generic code in vl.c.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1518000027-274608-5-git-send-email-imammedo@redhat.com>
[ehabkost: Fix bsd-user build error]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-03-19 14:10:36 -03:00

60 lines
1.4 KiB
C

/*
* Empty machine
*
* Copyright IBM, Corp. 2012
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "qemu/error-report.h"
#include "hw/hw.h"
#include "hw/boards.h"
#include "sysemu/sysemu.h"
#include "exec/address-spaces.h"
#include "cpu.h"
static void machine_none_init(MachineState *mch)
{
CPUState *cpu = NULL;
/* Initialize CPU (if user asked for it) */
if (mch->cpu_type) {
cpu = cpu_create(mch->cpu_type);
if (!cpu) {
error_report("Unable to initialize CPU");
exit(1);
}
}
/* RAM at address zero */
if (mch->ram_size) {
MemoryRegion *ram = g_new(MemoryRegion, 1);
memory_region_allocate_system_memory(ram, NULL, "ram", mch->ram_size);
memory_region_add_subregion(get_system_memory(), 0, ram);
}
if (mch->kernel_filename) {
error_report("The -kernel parameter is not supported "
"(use the generic 'loader' device instead).");
exit(1);
}
}
static void machine_none_machine_init(MachineClass *mc)
{
mc->desc = "empty machine";
mc->init = machine_none_init;
mc->max_cpus = 1;
mc->default_ram_size = 0;
}
DEFINE_MACHINE("none", machine_none_machine_init)