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acpi: ich9: add CPU hotplug handling to Q35 machine

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.. use IO port 0cd8-0xcf7 range for CPU present bitmap

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2014-01-09 17:36:32 +01:00 • committed by Michael S. Tsirkin
parent 81cea5e7f2
commit d6610bc2ad
4 changed files with 22 additions and 1 deletions
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14
hw/acpi/ich9.c
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@ -185,6 +185,15 @@ static void pm_powerdown_req(Notifier *n, void *opaque)
acpi_pm1_evt_power_down(&pm->acpi_regs);
}
static void ich9_cpu_added_req(Notifier *n, void *opaque)
{
ICH9LPCPMRegs *pm = container_of(n, ICH9LPCPMRegs, cpu_added_notifier);
assert(pm != NULL);
AcpiCpuHotplug_add(&pm->acpi_regs.gpe, &pm->gpe_cpu, CPU(opaque));
acpi_update_sci(&pm->acpi_regs, pm->irq);
}
void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
qemu_irq sci_irq)
{
@ -210,6 +219,11 @@ void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
qemu_register_reset(pm_reset, pm);
pm->powerdown_notifier.notify = pm_powerdown_req;
qemu_register_powerdown_notifier(&pm->powerdown_notifier);
AcpiCpuHotplug_init(pci_address_space_io(lpc_pci), OBJECT(lpc_pci),
&pm->gpe_cpu, ICH9_CPU_HOTPLUG_IO_BASE);
pm->cpu_added_notifier.notify = ich9_cpu_added_req;
qemu_register_cpu_added_notifier(&pm->cpu_added_notifier);
}
static void ich9_pm_get_gpe0_blk(Object *obj, Visitor *v,