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[Xen-devel] RFC: blktap3

  • To: "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>
  • From: Thanos Makatos <thanos.makatos@xxxxxxxxxx>
  • Date: Thu, 9 Aug 2012 15:03:06 +0100
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Thu, 09 Aug 2012 14:03:40 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: Ac12N7M32j6sBcjRSBOZA6AeyHi9wg==
  • Thread-topic: RFC: blktap3



I’d like to introduce blktap3: essentially blktap2 without the need of blkback. This has been developed by Santosh Jodh, and I’ll maintain it.


In this patch, blktap2 binaries are suffixed with “2”, so it’s not yet possible to use it along with blktap3.


An example configuration file I used is the following:

name = "debian bktap3 without pygrub"

memory = 256

disk = ['backendtype=xenio,format=vhd,vdev=xvda,access=rw,target=/root/debian-blktap3.vhd']

kernel = "vmlinuz-2.6.32-5-amd64"

root = '/dev/xvda1'

ramdisk = "initrd.img-2.6.32-5-amd64"




Before starting any blktap3 VM, the xenio daemon must be started.


I’ve tested it on change set 472fc515a463 without pygrub.


Any comments are welcome J



Thanos Makatos


Attachment: blktap3.bz2
Description: blktap3.bz2

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