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RE: [PATCH V3 03/10] hw/acpi: Add ACPI CPU hotplug init stub


From: Salil Mehta
Subject: RE: [PATCH V3 03/10] hw/acpi: Add ACPI CPU hotplug init stub
Date: Mon, 9 Oct 2023 13:49:32 +0000

> From: David Hildenbrand <david@redhat.com>
> Sent: Monday, October 9, 2023 1:23 PM
> To: Salil Mehta <salil.mehta@huawei.com>; qemu-devel@nongnu.org; qemu-
> arm@nongnu.org
> Cc: maz@kernel.org; jean-philippe@linaro.org; Jonathan Cameron
> <jonathan.cameron@huawei.com>; lpieralisi@kernel.org;
> peter.maydell@linaro.org; richard.henderson@linaro.org;
> imammedo@redhat.com; andrew.jones@linux.dev; philmd@linaro.org;
> eric.auger@redhat.com; oliver.upton@linux.dev; pbonzini@redhat.com;
> mst@redhat.com; will@kernel.org; gshan@redhat.com; rafael@kernel.org;
> alex.bennee@linaro.org; linux@armlinux.org.uk;
> darren@os.amperecomputing.com; ilkka@os.amperecomputing.com;
> vishnu@os.amperecomputing.com; karl.heubaum@oracle.com;
> miguel.luis@oracle.com; salil.mehta@opnsrc.net; zhukeqian
> <zhukeqian1@huawei.com>; wangxiongfeng (C) <wangxiongfeng2@huawei.com>;
> wangyanan (Y) <wangyanan55@huawei.com>; jiakernel2@gmail.com;
> maobibo@loongson.cn; lixianglai@loongson.cn; Linuxarm <linuxarm@huawei.com>
> Subject: Re: [PATCH V3 03/10] hw/acpi: Add ACPI CPU hotplug init stub
> 
> On 09.10.23 13:28, Salil Mehta wrote:
> > 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.
> >
> > Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
> > Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> > Reviewed-by: Gavin Shan <gshan@redhat.com>
> > ---
> >   hw/acpi/acpi-cpu-hotplug-stub.c | 6 ++++++
> >   1 file changed, 6 insertions(+)
> >
> > diff --git a/hw/acpi/acpi-cpu-hotplug-stub.c b/hw/acpi/acpi-cpu-hotplug-
> stub.c
> > index 3fc4b14c26..c6c61bb9cd 100644
> > --- a/hw/acpi/acpi-cpu-hotplug-stub.c
> > +++ b/hw/acpi/acpi-cpu-hotplug-stub.c
> > @@ -19,6 +19,12 @@ void legacy_acpi_cpu_hotplug_init(MemoryRegion
> *parent, Object *owner,
> >       return;
> >   }
> >
> > +void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner,
> > +                         CPUHotplugState *state, hwaddr base_addr)
> > +{
> > +    return;
> > +}
> 
> While at it, can we prefix that function with acpi?

I can do that but it has to be done at other places as well
such as in hw/acpi/cpu_hotplug.c <acpi_switch_to_modern_cphp()>

Hope this is not an extraneous change to this patch-set?

Thanks
Salil.




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