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pc: piix4/ich9: add 'cpu-hotplug-legacy' property

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It will be used to select which hotplug call-back is called
and for switching from legacy mode into new one.

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 2016-04-11 17:25:54 +02:00 committed by Michael S. Tsirkin
parent abd49bc2ed
commit 16bcab97eb
3 changed files with 46 additions and 2 deletions
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23
hw/acpi/ich9.c
View file

@ -306,6 +306,21 @@ static void ich9_pm_set_memory_hotplug_support(Object *obj, bool value,
s->pm.acpi_memory_hotplug.is_enabled = value;
}
static bool ich9_pm_get_cpu_hotplug_legacy(Object *obj, Error **errp)
{
ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
return s->pm.cpu_hotplug_legacy;
}
static void ich9_pm_set_cpu_hotplug_legacy(Object *obj, bool value,
Error **errp)
{
ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
s->pm.cpu_hotplug_legacy = value;
}
static void ich9_pm_get_disable_s3(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@ -397,6 +412,7 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp)
{
static const uint32_t gpe0_len = ICH9_PMIO_GPE0_LEN;
pm->acpi_memory_hotplug.is_enabled = true;
pm->cpu_hotplug_legacy = true;
pm->disable_s3 = 0;
pm->disable_s4 = 0;
pm->s4_val = 2;
@ -412,6 +428,10 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp)
ich9_pm_get_memory_hotplug_support,
ich9_pm_set_memory_hotplug_support,
NULL);
object_property_add_bool(obj, "cpu-hotplug-legacy",
ich9_pm_get_cpu_hotplug_legacy,
ich9_pm_set_cpu_hotplug_legacy,
NULL);
object_property_add(obj, ACPI_PM_PROP_S3_DISABLED, "uint8",
ich9_pm_get_disable_s3,
ich9_pm_set_disable_s3,
@ -439,7 +459,8 @@ void ich9_pm_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
acpi_memory_plug_cb(hotplug_dev, &lpc->pm.acpi_memory_hotplug,
dev, errp);
} else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
} else if (lpc->pm.cpu_hotplug_legacy &&
object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
legacy_acpi_cpu_plug_cb(hotplug_dev, &lpc->pm.gpe_cpu, dev, errp);
} else {
error_setg(errp, "acpi: device plug request for not supported device"

24
hw/acpi/piix4.c
View file

@ -86,6 +86,7 @@ typedef struct PIIX4PMState {
uint8_t disable_s4;
uint8_t s4_val;
bool cpu_hotplug_legacy;
AcpiCpuHotplug gpe_cpu;
MemHotplugState acpi_memory_hotplug;
@ -351,7 +352,8 @@ static void piix4_device_plug_cb(HotplugHandler *hotplug_dev,
acpi_memory_plug_cb(hotplug_dev, &s->acpi_memory_hotplug, dev, errp);
} else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
acpi_pcihp_device_plug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev, errp);
} else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
} else if (s->cpu_hotplug_legacy &&
object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
legacy_acpi_cpu_plug_cb(hotplug_dev, &s->gpe_cpu, dev, errp);
} else {
error_setg(errp, "acpi: device plug request for not supported device"
@ -560,6 +562,21 @@ static const MemoryRegionOps piix4_gpe_ops = {
.endianness = DEVICE_LITTLE_ENDIAN,
};
static bool piix4_get_cpu_hotplug_legacy(Object *obj, Error **errp)
{
PIIX4PMState *s = PIIX4_PM(obj);
return s->cpu_hotplug_legacy;
}
static void piix4_set_cpu_hotplug_legacy(Object *obj, bool value, Error **errp)
{
PIIX4PMState *s = PIIX4_PM(obj);
s->cpu_hotplug_legacy = value;
}
static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
PCIBus *bus, PIIX4PMState *s)
{
@ -570,6 +587,11 @@ static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
acpi_pcihp_init(OBJECT(s), &s->acpi_pci_hotplug, bus, parent,
s->use_acpi_pci_hotplug);
s->cpu_hotplug_legacy = true;
object_property_add_bool(OBJECT(s), "cpu-hotplug-legacy",
piix4_get_cpu_hotplug_legacy,
piix4_set_cpu_hotplug_legacy,
NULL);
legacy_acpi_cpu_hotplug_init(parent, OBJECT(s), &s->gpe_cpu,
PIIX4_CPU_HOTPLUG_IO_BASE);

1
include/hw/acpi/ich9.h
View file

@ -48,6 +48,7 @@ typedef struct ICH9LPCPMRegs {
uint32_t pm_io_base;
Notifier powerdown_notifier;
bool cpu_hotplug_legacy;
AcpiCpuHotplug gpe_cpu;
MemHotplugState acpi_memory_hotplug;