From: Joanna Rutkowska <joanna@invisiblethingslab.com>
To: Barde Kaushik 00901718 <kbarde@huawei.com>
Cc: "Han, Weidong" <weidong.han@intel.com>,
"Cihula, Joseph" <joseph.cihula@intel.com>,
"Kay, Allen M" <allen.m.kay@intel.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: feature suggestion: DMAR table emulation for Xen
Date: Fri, 14 May 2010 12:16:36 +0200 [thread overview]
Message-ID: <4BED2304.2080105@invisiblethingslab.com> (raw)
In-Reply-To: <fa7295a51fc63.1fc63fa7295a5@huawei.com>
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On 05/14/2010 11:41 AM, Barde Kaushik 00901718 wrote:
> << So, if we took a DMAR from a platform, say PM45+ICH9M w/ Intel
> BIOS, it should also work fine on any other laptop with this chipset
> (and probably other variants too), just minus the potential
> BIOS-specific-dirty-tricks...?
>>>
>
> Bringing-up mobile variants with same base BIOS may not work, at
> least in my experience, as OEMs tend to add various custom features
> (GPIO). These features may to over-ride RMRR assumptions from base
> BIOS. This tends to be the most prominant cause behind RMRR issues.
>
And what would happen if we ignore RMRRs on such a system?
j.
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next prev parent reply other threads:[~2010-05-14 10:16 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-13 14:14 feature suggestion: DMAR table emulation for Xen Joanna Rutkowska
2010-05-14 5:41 ` Kay, Allen M
2010-05-14 9:22 ` Joanna Rutkowska
2010-05-14 9:35 ` Keir Fraser
2010-05-14 10:15 ` Joanna Rutkowska
2010-05-14 10:48 ` Keir Fraser
2010-05-14 10:58 ` Joanna Rutkowska
2010-05-14 11:29 ` Keir Fraser
2010-05-14 11:47 ` philosophically about IGD pass-through (was: feature suggestion: DMAR table emulation for Xen) Joanna Rutkowska
2010-05-14 11:58 ` James Harper
2010-05-14 12:30 ` Keir Fraser
2010-05-14 15:57 ` Dan Magenheimer
2010-05-14 16:43 ` philosophically about IGD pass-through Joanna Rutkowska
2010-05-14 17:54 ` philosophically about IGD pass-through (was: feature suggestion: DMAR table emulation for Xen) Kay, Allen M
2010-05-15 16:54 ` feature suggestion: DMAR table emulation for Xen Ian Pratt
2010-05-15 17:12 ` IGD passthrough security (was Re: feature suggestion: DMAR table emulation for Xen) Joanna Rutkowska
2010-05-14 9:41 ` feature suggestion: DMAR table emulation for Xen Barde Kaushik 00901718
2010-05-14 10:16 ` Joanna Rutkowska [this message]
2010-05-14 14:25 ` Barde Kaushik 00901718
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