[Xen-users] Blktap in mainline kernel 3.x

[João Paulo <jtpaulo@xxxxxxxxxxxx>]

Hi guys,

I am using blktap for implementing a custom disk device for XEN DomUs. I was 
using a previous version of Ubuntu that I need to upgrade to version 11.10.  If 
i understood correctly, the blktap kernel module is not present in the mainline 
kernel 3.x. So my questions are:

Can I get blktap/blktap2 working on ubuntu 11.10? If yes, can you point me the 
procedure?

I saw that project Kronos is aiming at a blktap dkms module for debian/ubuntu 
http://blog.xen.org/index.php/2011/07/22/project-kronos/ . However, i tried it 
in a AMD64 bit distribution and the module was deployed correctly but blktap is 
still not working.

Is there any other linux distro, or alternative better than Ubuntu 11.10 for my 
objectives?

Finally, is there a better alternative for implementing custom I/O disk drivers 
for VMs instead of the blktap mechanism? I have not looked deeply to HVM-XEN 
and Qemu, would this solution be less painful? 

Thanks for your help,

Kind Regards,

João Paulo

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