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Re: [Qemu-devel] [RESEND PATCH v4 4/6] acpi, mem-hotplug: Add unplug cb
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [RESEND PATCH v4 4/6] acpi, mem-hotplug: Add unplug cb for memory device |
Date: |
Mon, 16 Mar 2015 15:10:40 +0100 |
On Mon, 16 Mar 2015 16:58:16 +0800
Zhu Guihua <address@hidden> wrote:
> From: Tang Chen <address@hidden>
>
> This patch adds unplug cb for memory device. It resets some memory status
> in acpi_memory_unplug_cb().
'some' is quite vague. Pls, explain what it does in commit message.
[...]
> diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
> index f716e91..781ad33 100644
> --- a/hw/acpi/piix4.c
> +++ b/hw/acpi/piix4.c
> @@ -377,8 +377,14 @@ 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_PC_DIMM)) {
missing condition "pm->acpi_memory_hotplug.is_enabled &&"?
> + acpi_memory_unplug_cb(&s->acpi_memory_hotplug, 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/include/hw/acpi/memory_hotplug.h
> b/include/hw/acpi/memory_hotplug.h
> index c437a85..15deae0 100644
> --- a/include/hw/acpi/memory_hotplug.h
> +++ b/include/hw/acpi/memory_hotplug.h
> @@ -32,6 +32,8 @@ void acpi_memory_plug_cb(ACPIREGS *ar, qemu_irq irq,
> MemHotplugState *mem_st,
> void acpi_memory_unplug_request_cb(ACPIREGS *ar, qemu_irq irq,
> MemHotplugState *mem_st,
> DeviceState *dev, Error **errp);
> +void acpi_memory_unplug_cb(MemHotplugState *mem_st,
> + DeviceState *dev, Error **errp);
>
> extern const VMStateDescription vmstate_memory_hotplug;
> #define VMSTATE_MEMORY_HOTPLUG(memhp, state) \
- [Qemu-devel] [RESEND PATCH v4 0/6] QEMU memory hot unplug support, Zhu Guihua, 2015/03/16
- [Qemu-devel] [RESEND PATCH v4 2/6] acpi, mem-hotplug: Add unplug request cb for memory device, Zhu Guihua, 2015/03/16
- [Qemu-devel] [RESEND PATCH v4 3/6] pc-dimm: Add memory hot unplug request support for pc-dimm, Zhu Guihua, 2015/03/16
- [Qemu-devel] [RESEND PATCH v4 4/6] acpi, mem-hotplug: Add unplug cb for memory device, Zhu Guihua, 2015/03/16
- Re: [Qemu-devel] [RESEND PATCH v4 4/6] acpi, mem-hotplug: Add unplug cb for memory device,
Igor Mammedov <=
- [Qemu-devel] [RESEND PATCH v4 5/6] pc-dimm: Add memory hot unplug support for pc-dimm, Zhu Guihua, 2015/03/16
- [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Zhu Guihua, 2015/03/16
- Re: [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Igor Mammedov, 2015/03/16
- Re: [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Zhu Guihua, 2015/03/23
- Re: [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Igor Mammedov, 2015/03/23
- Re: [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Zhu Guihua, 2015/03/24
- Re: [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Igor Mammedov, 2015/03/24
- Re: [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Zhu Guihua, 2015/03/25
- Re: [Qemu-devel] [RESEND PATCH v4 6/6] acpi: Add hardware implementation for memory hot unplug, Igor Mammedov, 2015/03/25