[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v3 5/7] acpi, pc: add cpu hot unplug callback suppor
From: |
Zhu Guihua |
Subject: |
[Qemu-devel] [PATCH v3 5/7] acpi, pc: add cpu hot unplug callback support |
Date: |
Fri, 13 Feb 2015 18:40:20 +0800 |
From: Gu Zheng <address@hidden>
Signed-off-by: Gu Zheng <address@hidden>
Signed-off-by: Zhu Guihua <address@hidden>
---
hw/acpi/ich9.c | 8 ++++++--
hw/acpi/piix4.c | 10 ++++++++--
hw/i386/pc.c | 26 ++++++++++++++++++++++++--
3 files changed, 38 insertions(+), 6 deletions(-)
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 7600e88..f095999 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -412,8 +412,12 @@ void ich9_pm_device_unplug_request_cb(ICH9LPCPMRegs *pm,
DeviceState *dev,
void ich9_pm_device_unplug_cb(ICH9LPCPMRegs *pm, DeviceState *dev,
Error **errp)
{
- error_setg(errp, "acpi: device unplug for not supported device"
- " type: %s", object_get_typename(OBJECT(dev)));
+ if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
+ acpi_cpu_unplug_cb(&pm->acpi_regs, pm->irq, &pm->gpe_cpu, dev, errp);
+ } else {
+ error_setg(errp, "acpi: device unplug for not supported device"
+ " type: %s", object_get_typename(OBJECT(dev)));
+ }
}
void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list)
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 23595b6..4ca9153 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -375,8 +375,14 @@ static void piix4_device_unplug_request_cb(HotplugHandler
*hotplug_dev,
static void piix4_device_unplug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
- error_setg(errp, "acpi: device unplug for not supported device"
- " type: %s", object_get_typename(OBJECT(dev)));
+ PIIX4PMState *s = PIIX4_PM(hotplug_dev);
+
+ if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
+ acpi_cpu_unplug_cb(&s->ar, s->irq, &s->gpe_cpu, dev, errp);
+ } else {
+ error_setg(errp, "acpi: device unplug for not supported device"
+ " type: %s", object_get_typename(OBJECT(dev)));
+ }
}
static void piix4_update_bus_hotplug(PCIBus *pci_bus, void *opaque)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 80dac20..d0d289b 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1687,6 +1687,24 @@ out:
error_propagate(errp, local_err);
}
+static void pc_cpu_unplug(HotplugHandler *hotplug_dev,
+ DeviceState *dev, Error **errp)
+{
+ HotplugHandlerClass *hhc;
+ Error *local_err = NULL;
+ PCMachineState *pcms = PC_MACHINE(hotplug_dev);
+
+ hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
+ hhc->unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ /* decrement the number of CPUs */
+ rtc_set_memory(pcms->rtc, 0x5f, rtc_get_memory(pcms->rtc, 0x5f) - 1);
+}
+
static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
@@ -1711,8 +1729,12 @@ static void
pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev,
static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
- error_setg(errp, "acpi: device unplug for not supported device"
- " type: %s", object_get_typename(OBJECT(dev)));
+ if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
+ pc_cpu_unplug(hotplug_dev, dev, errp);
+ } else {
+ error_setg(errp, "acpi: device unplug for not supported device"
+ " type: %s", object_get_typename(OBJECT(dev)));
+ }
}
static HotplugHandler *pc_get_hotpug_handler(MachineState *machine,
--
1.9.3
- [Qemu-devel] [PATCH v3 0/7] cpu: add i386 cpu hot remove support, Zhu Guihua, 2015/02/13
- [Qemu-devel] [PATCH v3 2/7] acpi/cpu: add cpu hot unplug request callback function, Zhu Guihua, 2015/02/13
- [Qemu-devel] [PATCH v3 1/7] x86: add x86_cpu_unrealizefn() for cpu apic remove, Zhu Guihua, 2015/02/13
- [Qemu-devel] [PATCH v3 3/7] acpi, pc: add cpu hot unplug request callback support, Zhu Guihua, 2015/02/13
- [Qemu-devel] [PATCH v3 4/7] acpi/cpu: add cpu hot unplug callback function, Zhu Guihua, 2015/02/13
- [Qemu-devel] [PATCH v3 5/7] acpi, pc: add cpu hot unplug callback support,
Zhu Guihua <=
- [Qemu-devel] [PATCH v3 6/7] cpu hotplug: implement function cpu_status_write() for vcpu ejection, Zhu Guihua, 2015/02/13
- [Qemu-devel] [PATCH v3 7/7] cpus: reclaim allocated vCPU objects, Zhu Guihua, 2015/02/13
- Re: [Qemu-devel] [PATCH v3 0/7] cpu: add i386 cpu hot remove support, Gu Zheng, 2015/02/23