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acpi/cpu-hotplug: introduce helper function to keep bit setting in one place 

Introduce helper function acpi_set_cpu_present_bit() to simplify acpi_cpu_plug_cb
and acpi_cpu_hotplug_init, so that we can keep bit setting in one place.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
This commit is contained in:
Gu Zheng 2014-10-22 11:24:32 +08:00 committed by Michael S. Tsirkin
parent 411b5db8e5
commit cc43364de7
1 changed files with 13 additions and 9 deletions
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22
hw/acpi/cpu_hotplug.c
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@ -36,10 +36,9 @@ static const MemoryRegionOps AcpiCpuHotplug_ops = {
}, },
}; };
void acpi_cpu_plug_cb(ACPIREGS *ar, qemu_irq irq, static void acpi_set_cpu_present_bit(AcpiCpuHotplug *g, CPUState *cpu,
AcpiCpuHotplug *g, DeviceState *dev, Error **errp) Error **errp)
{ {
CPUState *cpu = CPU(dev);
CPUClass *k = CPU_GET_CLASS(cpu); CPUClass *k = CPU_GET_CLASS(cpu);
int64_t cpu_id; int64_t cpu_id;
@ -49,9 +48,18 @@ void acpi_cpu_plug_cb(ACPIREGS *ar, qemu_irq irq,
return; return;
} }
ar->gpe.sts[0] |= ACPI_CPU_HOTPLUG_STATUS;
g->sts[cpu_id / 8] |= (1 << (cpu_id % 8)); g->sts[cpu_id / 8] |= (1 << (cpu_id % 8));
}
void acpi_cpu_plug_cb(ACPIREGS *ar, qemu_irq irq,
AcpiCpuHotplug *g, DeviceState *dev, Error **errp)
{
acpi_set_cpu_present_bit(g, CPU(dev), errp);
if (*errp != NULL) {
return;
}
ar->gpe.sts[0] |= ACPI_CPU_HOTPLUG_STATUS;
acpi_update_sci(ar, irq); acpi_update_sci(ar, irq);
} }
@ -61,11 +69,7 @@ void acpi_cpu_hotplug_init(MemoryRegion *parent, Object *owner,
CPUState *cpu; CPUState *cpu;
CPU_FOREACH(cpu) { CPU_FOREACH(cpu) {
CPUClass *cc = CPU_GET_CLASS(cpu); acpi_set_cpu_present_bit(gpe_cpu, cpu, &error_abort);
int64_t id = cc->get_arch_id(cpu);
g_assert((id / 8) < ACPI_GPE_PROC_LEN);
gpe_cpu->sts[id / 8] |= (1 << (id % 8));
} }
memory_region_init_io(&gpe_cpu->io, owner, &AcpiCpuHotplug_ops, memory_region_init_io(&gpe_cpu->io, owner, &AcpiCpuHotplug_ops,
gpe_cpu, "acpi-cpu-hotplug", ACPI_GPE_PROC_LEN); gpe_cpu, "acpi-cpu-hotplug", ACPI_GPE_PROC_LEN);