linux-kernel - RE: [PATCH V1 3/3] Xen processor driver

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Message-ID: <DE8DF0795D48FD4CA783C40EC82923353DD432@SHSMSX101.ccr.corp.intel.com>
Date:	Fri, 25 Jan 2013 06:39:28 +0000
From:	"Liu, Jinsong" <jinsong.liu@...el.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Konrad Rzeszutek Wilk <konrad@...nel.org>
Subject: RE: [PATCH V1 3/3] Xen processor driver

Agree, with minor comments below.

Konrad Rzeszutek Wilk wrote:
>> 
>> diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
>> index 2dc7022..ca2535a 100644
>> --- a/drivers/xen/Kconfig
>> +++ b/drivers/xen/Kconfig
>> @@ -202,6 +202,18 @@ config XEN_ACPI_HOTPLUG_MEMORY
>>  	  to hot-add memory at runtime (the hot-added memory cannot be
>>  	  removed until machine stop), select Y/M here, otherwise select N.
>> 
>> +config XEN_PROCESSOR
> 
> I think the name should be XEN_ACPI_PROCESSOR but then the
> xen-acpi-processor gets in the way.  Hm, perhaps this should be then
> called xen-acpi-cpu-hotplug.c ?
> 
> Would that work?
> 
> Or xen-acpi-cpu.c?
> 
> So then it is called 'XEN_ACPI_CPU' ?

So let's use xen-acpi-cpuhoplut.c and XEN_ACPI_HOTPLUG_CPU,
compared with xen memory hotplug xen-acpi-memhotplug.c and XEN_ACPI_HOTPLUG_MEMORY

> 
> 
>> +	tristate "Xen processor driver"
>> +	depends on XEN_STUB && ACPI
> 
> Is there anytime a scenario where the user might compile a kernel
> without DOM0 support, but with Xen_stub && ACPI?

Hmm, let's relax xen-stub.c by 'depends on XEN'
and for xen cpu/mem hotplug add 'depends on XEN_DOM0'

Thanks,
Jinsong--
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