linux-kernel - Re: [PATCH] x86,apic: Blacklist x2APIC on some platforms

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Message-ID: <CAJyhjX1HbxzfDv963Zi_CJ703P=by+hVdsHhNrH3HrnFvz8amQ@mail.gmail.com>
Date:	Mon, 18 Mar 2013 21:09:53 -0400
From:	Sergio Correia <lists@...e.net>
To:	Youquan Song <youquan.song@...ux.intel.com>
Cc:	Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Youquan Song <youquan.song@...el.com>,
	linux-kernel@...r.kernel.org, tglx@...utronix.de, mingo@...nel.org
Subject: Re: [PATCH] x86,apic: Blacklist x2APIC on some platforms

Hello,

On Sat, Jan 5, 2013 at 10:55 AM, Youquan Song
<youquan.song@...ux.intel.com> wrote:
> On Tue, Dec 18, 2012 at 09:42:30AM -0800, Yinghai Lu wrote:
>> On Tue, Dec 18, 2012 at 9:33 AM, H. Peter Anvin <hpa@...ux.intel.com> wrote:
>> > On 12/18/2012 09:07 AM, Youquan Song wrote:
>> >> Blacklist x2apic when Nivida graphics enabled on Lenovo ThinkPad T420.
>> >> Also set blacklist x2apic for Lenovo ThinkPad W520 and L520.
>> >
>> > I thought we had gotten reports that the Nvidia correlation was false?
>>
>> that's T520.
>
> Hi hpa,
>
> Yinghai's T520 works when x2APIC enabled, so do not need to blacklist.
>
> Would you like to take the patch?
>

I found this patch after some googling and for the record, it makes my
W520 boot with VT-d enabled and the discrete NVidia card.
Is it still being considered?

thanks,
Sergio

> Thanks
> -Youquan
>
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