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From: "H. Peter Anvin" <hpa@zytor.com>
To: Arjan van de Ven <arjan@infradead.org>
Cc: "Diego M. Vadell" <dvadell@linuxclusters.com.ar>,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: PAT and MTRRs
Date: Sun, 26 Oct 2008 17:21:41 -0700	[thread overview]
Message-ID: <49050995.4080508@zytor.com> (raw)
In-Reply-To: <20081026171210.7b3b096a@infradead.org>

Arjan van de Ven wrote:
> 
> PAT can't make memory cachable that the MTRR's have as uncachable.
> What PAT *can* do is, within an MTRR, do fine grained mapping...
> 

Now, if it wasn't for the braindamage called ACPI and SMM, we could have 
   cleared the MTRR settings and just used PAT...

	-hpa

  reply	other threads:[~2008-10-27  0:25 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-26 23:46 Diego M. Vadell
2008-10-27  0:12 ` Arjan van de Ven
2008-10-27  0:21   ` H. Peter Anvin [this message]
2008-10-27  0:34     ` Arjan van de Ven
2008-10-27  0:38       ` H. Peter Anvin
2008-10-27  5:17 ` Yinghai Lu
2008-10-31 22:42   ` Diego M. Vadell
2008-10-31 23:19     ` Yinghai Lu
2008-10-31 23:35     ` Yinghai Lu
2008-11-11 14:30       ` Diego M. Vadell

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