Re: [Xen-users] Where are Xen kernel patches?

[John McMonagle <johnm@xxxxxxxxxxx>]

Petersson, Mats wrote:

> 
>
>  
>
>>-----Original Message-----
>>From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
>>[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
>>John McMonagle
>>Sent: 15 December 2006 16:06
>>To: xen-users@xxxxxxxxxxxxxxxxxxx
>>Subject: [Xen-users] Where are Xen kernel patches?
>>
>>Want to see if I can get a couple old servers running under Xen.
>>
>>They both need custom kernels.
>>
>>One needs to run sco executables and need the abi patches.
>>The other is for win4lin and needs win4lin patches.
>>
>>Where are the xen kernel patches?
>>Are there patches for older kernels that work with the current xen?
>>It's improbably I will find  abi or win4lin patches for a 
>>recent kernel.
>>For win4lin see one for 2.6.14.3 for abi see mention of one 
>>for 2.6.16.
>>    
>>
>
>Note: I haven't tried this, I'm just writing down what I have figured
>out by looking at the different makefiles and doing other things in Xen.
>
>
>You can generate your own patches with "make mkpatches" in the Xen tree.
>
>
>You'll need to set the "LINUX_VER" to 2.6.14.3 in
>.../buildconfigs/mk.linux-2.6-xen
>
>And there's absolutely no guarantee that your patches will apply to this
>kernel version, as it's quite ancient... It may be a BETTER option to
>try to forward port the win4lin/sco abi changes to the current Xen
>kernel version - as the patches for the Linux kernel in my
>.../patches/linux-2.6.16.29/ is around 7500 lines of patches. I doubt
>the size of the sco/win4lin patches are that big (although I guess
>win4lin may be quite big), so it's possibly easier to make those work on
>a later kernel version than taking Xen back several releases... 
>
>--
>Mats
>  
>
I installed from debian etch and do not seen anything like that.
Will I need the source from here?
http://xensource.com/download/dl_303tarballs.html

Looks there are some current abi patches but not win4lin.

Is there any commitment to maintain kernel compatibility at least over a
major version?
New version of xen have been coming out pretty often and it could get
challenging if I have custom kernels.

This brings me back to HVM. Does linux have good disk and network
performance using HVM?

Thanks

John

>>I suppose HVM could be used, but do not have anything that supports it
>>at the moment.
>>If one did use HVM would one still have the disk and lan performance
>>issues windows has?
>>
>>Thanks
>>
>>John
>>
>>    
>>


-- 
John McMonagle
IT Manager
Advocap Inc.



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