commit 8872c25a26ccc2c2f62903b023212bbc0a4f5d39
author Igor Mammedov <imammedo@redhat.com> Tue Jun 14 16:14:02 2016 +0200
committer Michael S. Tsirkin <mst@redhat.com> Fri Jun 24 05:21:26 2016 +0300
tree 05426589c9b1f870cecea5adadd5108cc3ccbbb0
parent d2238cb6781d7bcbbf8ddf4a1f8486838b80c7bb

acpi: cpuhp: implement hot-remove parts of CPU hotplug interface

it adds hw registers needed for handling CPU hot-remove and
corresponding AML methods to request and eject a CPU with
necessary hotplug callbacks in pc,piix4,ich9 code.

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>

hw/acpi/piix4.c

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 6d24cb5..8cdc1da 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -378,6 +378,9 @@
     } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
         acpi_pcihp_device_unplug_cb(hotplug_dev, &s->acpi_pci_hotplug, dev,
                                     errp);
+    } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
+               !s->cpu_hotplug_legacy) {
+        acpi_cpu_unplug_request_cb(hotplug_dev, &s->cpuhp_state, dev, errp);
     } else {
         error_setg(errp, "acpi: device unplug request for not supported device"
                    " type: %s", object_get_typename(OBJECT(dev)));
@@ -392,6 +395,9 @@
     if (s->acpi_memory_hotplug.is_enabled &&
         object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
         acpi_memory_unplug_cb(&s->acpi_memory_hotplug, dev, errp);
+    } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU) &&
+               !s->cpu_hotplug_legacy) {
+        acpi_cpu_unplug_cb(&s->cpuhp_state, dev, errp);
     } else {
         error_setg(errp, "acpi: device unplug for not supported device"
                    " type: %s", object_get_typename(OBJECT(dev)));