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Re: [Xen-devel] [PATCH] VT-d: improve RMRR validity checking

To: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>, Weidong Han <weidong.han@xxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] VT-d: improve RMRR validity checking
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 25 Jan 2010 13:43:18 +0000
Cc: "Cihula, Joseph" <joseph.cihula@xxxxxxxxx>, "Kay, Allen M" <allen.m.kay@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Noboru Iwamatsu <n_iwamatsu@xxxxxxxxxxxxxx>
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On 25/01/2010 10:45, "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx> wrote:

> a) Could be discussed if panic should be default instead of disabling iommu or
> not, although there seem to be a lot of broken bioses, so that would lead to a
> lot of machines not booting.

Absolutely not acceptable. Warn and completely disable IOMMU is the correct
default causing least pain to the most end users.

 -- Keir



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