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Re: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI

To: "Cihula, Joseph" <joseph.cihula@xxxxxxxxx>
From: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Date: Fri, 20 May 2011 11:17:15 +0100
Cc: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Fri, 20 May 2011 03:18:14 -0700
List-id: Xen developer discussion <xen-devel.lists.xensource.com>

At 21:48 +0100 on 19 May (1305841716), Cihula, Joseph wrote:
> So how would the user (or installation SW) specify to use the best
> (IOMMU) security available on the platform?

iommu=on.  That pretty much lines up with the current meaining. 

Only iommu=force requires a fully secure IOMMU, and you can
overide that with iommu=force,nointremap.  

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

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Follow-Ups:
- Re: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI
  - From: Ian Jackson
- RE: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI
  - From: Cihula, Joseph

References:
- RE: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI
  - From: Jan Beulich
- RE: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI
  - From: Cihula, Joseph
- RE: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI
  - From: Ian Campbell
- RE: [Xen-devel] Xen security advisory CVE-2011-1898 - VT-d (PCI passthrough) MSI
  - From: Cihula, Joseph

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