Re: [PATCH V11 3/8] hw/acpi: Update ACPI GED framework to support vCPU Hotplug

[Zhao Liu <zhao1.liu@intel.com>]

On Wed, May 22, 2024 at 10:11:06PM +0100, Salil Mehta via wrote:
> Date: Wed, 22 May 2024 22:11:06 +0100
> From: Salil Mehta via <qemu-devel@nongnu.org>
> Subject: [PATCH V11 3/8] hw/acpi: Update ACPI GED framework to support vCPU
>  Hotplug
> X-Mailer: git-send-email 2.34.1
> 
> ACPI GED (as described in the ACPI 6.4 spec) uses an interrupt listed in the
> _CRS object of GED to intimate OSPM about an event. Later then demultiplexes the
> notified event by evaluating ACPI _EVT method to know the type of event. Use
> ACPI GED to also notify the guest kernel about any CPU hot(un)plug events.
> 
> ACPI CPU hotplug related initialization should only happen if ACPI_CPU_HOTPLUG
> support has been enabled for particular architecture. Add cpu_hotplug_hw_init()
> stub to avoid compilation break.
> 
> Co-developed-by: Keqian Zhu <zhukeqian1@huawei.com>
> Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com>
> Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> Reviewed-by: Gavin Shan <gshan@redhat.com>
> Reviewed-by: David Hildenbrand <david@redhat.com>
> Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
> Tested-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com>
> Tested-by: Xianglai Li <lixianglai@loongson.cn>
> Tested-by: Miguel Luis <miguel.luis@oracle.com>
> Reviewed-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com>
> ---
>  hw/acpi/acpi-cpu-hotplug-stub.c        |  6 ++++++
>  hw/acpi/cpu.c                          |  6 +++++-
>  hw/acpi/generic_event_device.c         | 17 +++++++++++++++++
>  include/hw/acpi/generic_event_device.h |  4 ++++
>  4 files changed, 32 insertions(+), 1 deletion(-)
> 

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>