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

from [Keir Fraser] [Permanent Link][Original]
To: Noboru Iwamatsu <n_iwamatsu@xxxxxxxxxxxxxx>, "weidong.han@xxxxxxxxx" <weidong.han@xxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] VT-d: improve RMRR validity checking
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Thu, 21 Jan 2010 15:04:06 +0000
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On 21/01/2010 12:19, "Noboru Iwamatsu" <n_iwamatsu@xxxxxxxxxxxxxx> wrote:

> I re-send the DRHD-fix patch.
> 
> If DRHD does not have existent devices, ignore it.
> If DRHD has both existent and non-existent devices, consider it invalid
> and not register.

What happens if you register a DRHD with some but not all devices existing?
Do bad things happen on some systems?

 -- Keir



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