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sparc/sun4m: Use start-powered-off CPUState property

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Instead of setting CPUState::halted to 1 in secondary_cpu_reset(), use the
start-powered-off property which makes cpu_common_reset() initialize it
to 1 in common code.

Now secondary_cpu_reset() becomes equivalent to main_cpu_reset() so rename
the function to sun4m_cpu_reset().

Also remove setting of cs->halted from cpu_devinit(), which seems out of
place when compared to similar code in other architectures (e.g.,
ppce500_init() in hw/ppc/e500.c).

Finally, change creation of CPU object from cpu_create() to object_new()
and qdev_realize_and_unref() because cpu_create() realizes the CPU and it's
not possible to set a property after the object is realized.

Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Message-Id: <20200826055535.951207-8-bauerman@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Thiago Jung Bauermann
2020-08-26 02:55:34 -03:00
committed by David Gibson
parent 3d0c102092
commit 24f675cd3b
1 changed files with 6 additions and 19 deletions
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25
hw/sparc/sun4m.c
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@@ -218,7 +218,7 @@ static void dummy_cpu_set_irq(void *opaque, int irq, int level)
{
}
static void main_cpu_reset(void *opaque)
static void sun4m_cpu_reset(void *opaque)
{
SPARCCPU *cpu = opaque;
CPUState *cs = CPU(cpu);
@@ -226,15 +226,6 @@ static void main_cpu_reset(void *opaque)
cpu_reset(cs);
}
static void secondary_cpu_reset(void *opaque)
{
SPARCCPU *cpu = opaque;
CPUState *cs = CPU(cpu);
cpu_reset(cs);
cs->halted = 1;
}
static void cpu_halt_signal(void *opaque, int irq, int level)
{
if (level && current_cpu) {
@@ -818,21 +809,17 @@ static const TypeInfo ram_info = {
static void cpu_devinit(const char *cpu_type, unsigned int id,
uint64_t prom_addr, qemu_irq **cpu_irqs)
{
CPUState *cs;
SPARCCPU *cpu;
CPUSPARCState *env;
cpu = SPARC_CPU(cpu_create(cpu_type));
cpu = SPARC_CPU(object_new(cpu_type));
env = &cpu->env;
cpu_sparc_set_id(env, id);
if (id == 0) {
qemu_register_reset(main_cpu_reset, cpu);
} else {
qemu_register_reset(secondary_cpu_reset, cpu);
cs = CPU(cpu);
cs->halted = 1;
}
qemu_register_reset(sun4m_cpu_reset, cpu);
object_property_set_bool(OBJECT(cpu), "start-powered-off", id != 0,
&error_fatal);
qdev_realize_and_unref(DEVICE(cpu), NULL, &error_fatal);
*cpu_irqs = qemu_allocate_irqs(cpu_set_irq, cpu, MAX_PILS);
env->prom_addr = prom_addr;
}