WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 		  
Home Products Support Community News
 
   
 

xen-devel

[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

[Xen-devel] [PATCH] Included reserved memory regions in dom0 iommu mappi

from [Ross Philipson] [Permanent Link][Original]
To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH] Included reserved memory regions in dom0 iommu mappings
From: Ross Philipson <Ross.Philipson@xxxxxxxxxx>
Date: Mon, 23 Feb 2009 15:00:48 -0500
Accept-language: en-US
Acceptlanguage: en-US
Delivery-date: Mon, 23 Feb 2009 12:01:25 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcmV8WvFdwYsYuYYRHO0ZoqfRggEUQ==
Thread-topic: [PATCH] Included reserved memory regions in dom0 iommu mappings

This adds a boolean boot parameter to xen to allow reserved memory

regions to be added to the iommu mappings for dom0. The parameter

is "iommu_include_reserved" and is off by default. A warning is

also traced when incorrect RMRR to system memory map values are

detected. This is being added to address some incorrect BIOS's that

do not report correctly the requied reserved memory ranges in

the RMRRs. When this occurs it currently can cause early boot hangs

and crashes.

 

Signed-off-by: Ross Philipson <ross.philipson@xxxxxxxxxx>

 

Based on changeset 19238

 

Thanks

Ross

 

 

Ross Philipson

Senior Software Engineer

Citrix Systems, Inc

14 Crosby Drive

Bedford, MA 01730

781-301-7949

ross.philipson@xxxxxxxxxx

 

Attachment: iommu_include_reserved.patch
Description: iommu_include_reserved.patch

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  Re: [Xen-devel] Successful boot of latest pv_ops kernel, Boris Derzhavets
Next by Date:  Re: [Xen-devel] HVM pvops failures, Boris Derzhavets
Previous by Thread:  [Xen-devel] Successful boot of latest pv_ops kernel, jonr
Next by Thread:  RE: [Xen-devel] [PATCH] Included reserved memory regions in dom0 iommu mappings, Cui, Dexuan
Indexes:  [Date] [Thread] [Top] [All Lists]
 
   

Copyright , Citrix Systems Inc. All rights reserved. Legal and Privacy