linux-kernel - RE: [PATCH] x86/apic: check FADT settings after enable x2apic

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Date:	Mon, 4 Feb 2013 06:41:32 +0000
From:	"Wang, Song-Bo (Stoney)" <song-bo.wang@...com>
To:	Ingo Molnar <mingo@...nel.org>, Yinghai Lu <yinghai@...nel.org>
CC:	"mingo.kernel.org@...il.com" <mingo.kernel.org@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Zhang, Lin-Bao (Linux Kernel R&D)" <linbao.zhang@...com>,
	"Pearson, Greg" <greg.pearson@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"suresh.b.siddha@...el.com" <suresh.b.siddha@...el.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: RE: [PATCH] x86/apic: check FADT settings after enable x2apic

 * Ingo Molnar <mingo.kernel.org@...il.com> wrote:
> 
> * Yinghai Lu <yinghai@...nel.org> wrote:
> 
> > Please check attached.
> 
> Almost good.
> 
> This:
> 
>   > When some HP sytems boot without x2apic_phys, there will be
> 
> Should mention the approximate models of the systems affected - is it
> just a specific line of systems, or a wider range of systems affected?
> 
> This will inform users and will help maintainers like me to prioritize
> the merging and backporting of patches.
> 
> Thanks,
> 
> 	Ingo

Hi Ingo,

Due to some HW limitation, HP ProLiant DL980 G7 Server has the BIT ACPI_FADT_APIC_PHYSICAL set in BIOS.

This model of systems already shipped. It is great if some backporting could be done.

Thanks,

  Stoney
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