Re: Xen patches merged to upstream Linux 2.6.36, plans for 2.6.37? - Mr. Teo En Ming (Zhang Enming) of Singapore

From: "Mr. Teo En Ming (Zhang Enming) of Singapore" <space.time.universe@gmail.com>
To: "Pasi Kärkkäinen" <pasik@iki.fi>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>,
	"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
	zhang_enming@lavabit.com,
	"teoenming@hotmail.com" <teoenming@hotmail.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	"space.time.universe@gmail.com" <space.time.universe@gmail.com>
Subject: Re: Xen patches merged to upstream Linux 2.6.36, plans for 2.6.37?
Date: Tue, 17 Aug 2010 00:44:44 +0800	[thread overview]
Message-ID: <4C696AFC.7060504@gmail.com> (raw)
In-Reply-To: <20100816130401.GL2804@reaktio.net>

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Dear Pasi,

I have just finished downloading the latest Xen 4.0.1-rc6 hypervisor and 
also the latest paravirt-ops dom0 Linux kernel 2.6.32.19, at the time of 
this writing.

I understand that, by default, Xen 4.0.x hypervisor series support VGA 
passthrough of the primary graphics adapter, especially Intel Integrated 
Graphics Device (IGD) if you are using an Intel Desktop Board like me 
(Intel DQ45CB). Hence no additional work/patches are required if you 
just want to passthrough the IGD or primary VGA adapter. But VGA 
passthrough of the secondary graphics adapter, ie. my NVIDIA GeForce 
8400 GS PCI Express x16 display adapter, is not supported by default. To 
passthrough the secondary graphics adapter to your Windows XP, Windows 
Vista or Windows 7 HVM fully virtualized virtual machine, patches are 
required to load the VGA BIOS of the secondary graphics adapter from a 
file named vgabios-pt.bin and also to perform 1:1 vBAR:pBAR mappings.

I have just finished reading through the following Xen wiki pages:

http://wiki.xensource.com/xenwiki/XenParavirtOps

http://wiki.xensource.com/xenwiki/XenVGAPassthrough

http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html

http://lists.xensource.com/archives/html/xen-devel/2010-05/msg00441.html

I am wondering if I can apply the four patches attached in this 
xen-devel mailing list topic 
http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html 
to Xen 4.0.1-rc6?

I have already used those same set of patches from Han Weidong of Intel 
Corporation between July and November last year (2009) to patch 
xen-unstable 3.5 for my NVIDIA GeForce 8400 GS PCI Express x16 VGA 
adapter. The thing that is troubling me is whether I can used the same 
set of patches to patch Xen 4.0.1-rc6, since the patches are already 
outdated. The patches which had been provided by Han Weidong to me were 
dated 31st August 2009, almost one year ago.

I am asking if the patches provided here at 
http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html 
are ***COMPATIBLE*** with Xen 4.0.1-rc6 at all? Would the patches cause 
errors to be displayed/generated when applied to Xen 4.0.1-rc6?

I am looking forward to your reply.

Thank you very much.

Yours sincerely,

Mr. Teo En Ming (Zhang Enming)
Citizenship: Singapore Citizen/Singaporean
Facebook account: Teo En Ming (Zhang Enming)
Facebook link:http://www.facebook.com/profile.php?id=100000750083982
Facebook photos:
http://www.facebook.com/profile.php?id=100000750083982#!/profile.php?id=100000750083982&v=photos  <http://www.facebook.com/profile.php?id=100000750083982#%21/profile.php?id=100000750083982&v=photos>
Facebook videos:
http://www.facebook.com/profile.php?id=100000750083982&v=app_2392950137  <http://www.facebook.com/profile.php?id=100000750083982&v=app_2392950137>
Mobile Phone (Starhub pre-paid): +65-8369-2618
Windows Live Messenger:teoenming at hotmail.com  <https://admin.fedoraproject.org/mailman/listinfo/users>
Location: Bedok Reservoir Road, Singapore
ZIP: 470103
My Open Letter (Plea for Medical Help/Assistance) to World Leaders:-
http://lists.mcs.anl.gov/pipermail/mpich-discuss/2010-August/007693.html
http://lists.fedoraproject.org/pipermail/users/2010-August/380213.html
http://mythtv.org/pipermail/mythtv-users/2010-August/294733.html

On 08/16/2010 09:04 PM, Pasi Kärkkäinen wrote:
> On Mon, Aug 16, 2010 at 08:55:51PM +0800, Mr. Teo En Ming (Zhang Enming) of Singapore wrote:
>    
>>     Dear Pasi,
>>
>>     Could you provide me with the links to the wiki (or official) pages for
>>     detailed instructions on compiling Xen 4.0.1-rc6 hypervisor and Xen pv-ops
>>     dom0 kernel 2.6.32.19? I need VGA passthrough as well.
>>
>>     I have been away from the Xen community since December 2009 and I need a
>>     little refreshment.
>>
>>      
> Instructions to compile Xen 4.0:
> http://wiki.xensource.com/xenwiki/Xen4.0
>
> Instructions to compile pvops dom0 2.6.32.19 kernel:
> http://wiki.xensource.com/xenwiki/XenParavirtOps
>
> There's an example .config for the 2.6.32.19 linked on
> the XenParavirtOps wiki page.
>
> -- Pasi
>
>    
>>   Yours sincerely,
>>
>>   Mr. Teo En Ming (Zhang Enming)
>>   Citizenship: Singapore Citizen/Singaporean
>>   Facebook account: Teo En Ming (Zhang Enming)
>>   Facebook link: [1]http://www.facebook.com/profile.php?id=100000750083982
>>   Facebook photos:
>>   [2]http://www.facebook.com/profile.php?id=100000750083982#!/profile.php?id=100000750083982&v=photos
>>   Facebook videos:
>>   [3]http://www.facebook.com/profile.php?id=100000750083982&v=app_2392950137
>>   Mobile Phone (Starhub pre-paid): +65-8369-2618
>>   Windows Live Messenger: [4]teoenming at hotmail.com
>>   Location: Bedok Reservoir Road, Singapore
>>   ZIP: 470103
>>   My Open Letter (Plea for Medical Help/Assistance) to World Leaders:-
>>   [5]http://lists.mcs.anl.gov/pipermail/mpich-discuss/2010-August/007693.html
>>   [6]http://lists.fedoraproject.org/pipermail/users/2010-August/380213.html
>>   [7]http://mythtv.org/pipermail/mythtv-users/2010-August/294733.html
>>
>>     On 08/16/2010 01:29 PM, Mr. Teo En Ming (Zhang Enming) of Singapore wrote:
>>
>>       Good news! Good news! Xen pv-ops dom0 is finally just starting to get
>>       merged into upstream Linux...
>>
>>       Starting with Linux 2.6.36....
>>
>>       Yours sincerely,
>>
>>       On 08/16/2010 12:09 AM, Pasi Kärkkäinen wrote:
>>
>>         Hello,
>>
>>         It looks like upstream linux-2.6.git contains at least the following
>>         xen related new features for Linux 2.6.36:
>>
>>         - Xen-SWIOTLB support (required for Xen PCI passthru and dom0)
>>         - Xen PV-on-HVM drivers
>>         - Xen VBD online dynamic resize of guest disks (xvd*)
>>
>>         Congratulations!
>>
>>         What are the plans for 2.6.37 merge window? I believe at least:
>>         - Xen PCI frontend
>>
>>         Others? I'm going to update the XenParavirtOps and XenKernelFeatures
>>         wiki pages..
>>
>>         -- Pasi
>>
>>         _______________________________________________
>>         Xen-devel mailing list
>>         [8]Xen-devel@lists.xensource.com
>>         [9]http://lists.xensource.com/xen-devel
>>
>>
>>
>> References
>>
>>     Visible links
>>     1. http://www.facebook.com/profile.php?id=100000750083982
>>     2. http://www.facebook.com/profile.php?id=100000750083982#%21/profile.php?id=100000750083982&v=photos
>>     3. http://www.facebook.com/profile.php?id=100000750083982&v=app_2392950137
>>     4. https://admin.fedoraproject.org/mailman/listinfo/users
>>     5. http://lists.mcs.anl.gov/pipermail/mpich-discuss/2010-August/007693.html
>>     6. http://lists.fedoraproject.org/pipermail/users/2010-August/380213.html
>>     7. http://mythtv.org/pipermail/mythtv-users/2010-August/294733.html
>>     8. mailto:Xen-devel@lists.xensource.com
>>     9. http://lists.xensource.com/xen-devel
>>      
>    

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