From: Pavel Machek <pavel@ucw.cz>
To: "H. Peter Anvin" <hpa@linux.intel.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>,
Matthew Wilcox <matthew@wil.cx>,
Jesse Barnes <jbarnes@virtuousgeek.org>, Martin Mares <mj@ucw.cz>,
LKML <linux-kernel@vger.kernel.org>,
linux-pci@vger.kernel.org,
the arch/x86 maintainers <x86@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
linux-arch@vger.kernel.org
Subject: Re: RFC: x86: cap iomem_resource to addressable physical memory
Date: Sun, 21 Jun 2009 08:42:01 +0200 [thread overview]
Message-ID: <20090621064201.GD1656@ucw.cz> (raw)
In-Reply-To: <4A316D3C.7080403@linux.intel.com>
On Thu 2009-06-11 13:46:52, H. Peter Anvin wrote:
> Yinghai Lu wrote:
> >
> > do we need do that on every cpu?
> >
> > looks like we could do that in identify_boot_cpu.
> >
>
> What if the CPUs are heterogenous? It's obviously a suboptimal
> situation, but it doesn't seem like something we can rely on.
Is it ok if that changes during runtime? What if someone hotplugs
heterogenous cpu? I'd say basing it on boot cpu seems simplest.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2009-06-21 6:42 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-10 1:32 RFC: x86: cap iomem_resource to addressable physical memory H. Peter Anvin
2009-06-10 1:32 ` H. Peter Anvin
2009-06-11 19:17 ` Jesse Barnes
2009-06-11 19:17 ` Jesse Barnes
2009-06-11 20:43 ` Yinghai Lu
2009-06-11 20:46 ` H. Peter Anvin
2009-06-11 20:46 ` H. Peter Anvin
2009-06-21 6:42 ` Pavel Machek [this message]
2009-06-21 6:42 ` Pavel Machek
2009-06-21 7:40 ` H. Peter Anvin
2009-06-21 20:55 ` Pavel Machek
2009-06-21 20:55 ` Pavel Machek
2009-06-22 7:54 ` H. Peter Anvin
2009-06-22 7:54 ` H. Peter Anvin
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