[Qemu-devel] [PATCH v2 2/5] acpi, ich9: Add hotunplug request cb for ich9.

[Zhu Guihua]

From: Tang Chen <address@hidden>

Memory and CPU hot unplug are both asynchronous procedures.
They both need unplug request cb when the unplug operation happens.

This patch adds hotunplug request cb for ich9, and memory and CPU
hot unplug will share it.

Reviewed-by: Igor Mammedov <address@hidden>
Signed-off-by: Tang Chen <address@hidden>
Signed-off-by: Zhu Guihua <address@hidden>
---
 hw/acpi/ich9.c         | 7 +++++++
 hw/isa/lpc_ich9.c      | 5 +++--
 include/hw/acpi/ich9.h | 2 ++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 884dab3..5fe1eb8 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -397,6 +397,13 @@ void ich9_pm_device_plug_cb(ICH9LPCPMRegs *pm, DeviceState 
*dev, Error **errp)
     }
 }
 
+void ich9_pm_device_unplug_request_cb(ICH9LPCPMRegs *pm, DeviceState *dev,
+                                      Error **errp)
+{
+    error_setg(errp, "acpi: device unplug request for not supported device"
+               " type: %s", object_get_typename(OBJECT(dev)));
+}
+
 void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list)
 {
     ICH9LPCState *s = ICH9_LPC_DEVICE(adev);
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index 530b074..d00b223 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -610,8 +610,9 @@ static void ich9_device_plug_cb(HotplugHandler *hotplug_dev,
 static void ich9_device_unplug_request_cb(HotplugHandler *hotplug_dev,
                                           DeviceState *dev, Error **errp)
 {
-    error_setg(errp, "acpi: device unplug request for not supported device"
-               " type: %s", object_get_typename(OBJECT(dev)));
+    ICH9LPCState *lpc = ICH9_LPC_DEVICE(hotplug_dev);
+
+    ich9_pm_device_unplug_request_cb(&lpc->pm, dev, errp);
 }
 
 static bool ich9_rst_cnt_needed(void *opaque)
diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h
index 12d7a7a..eaef0c3 100644
--- a/include/hw/acpi/ich9.h
+++ b/include/hw/acpi/ich9.h
@@ -63,6 +63,8 @@ extern const VMStateDescription vmstate_ich9_pm;
 void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp);
 
 void ich9_pm_device_plug_cb(ICH9LPCPMRegs *pm, DeviceState *dev, Error **errp);
+void ich9_pm_device_unplug_request_cb(ICH9LPCPMRegs *pm, DeviceState *dev,
+                                      Error **errp);
 
 void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list);
 #endif /* HW_ACPI_ICH9_H */
-- 
1.9.3