Re: [Xen-users] [Xen-devel] [cubieboard2] Bringing up dom0

[Ajay Garg <ajaygargnsit@xxxxxxxxx>]

Hi Andrew.

Thanks for the reply.

On Sat, Apr 28, 2018 at 10:57 PM, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> wrote:

On 28/04/18 18:12, Ajay Garg wrote:

Hi All.

We have brought up the cubieboard2 from almost scratch, following are the steps done :

<snip>

== getting xen ready ==

i)

Compiled xen on cubieboard itself, via :

   * git clone git://xenbits.xen.org/xen.git
   * cd xen
.  * ./configure --libdir=/usr/lib
   * make debball CONFIG_EARLY_PRINTK=sun7i -j4

   * sudo dpkg -i dist/xen-upstream-4.11-unstable.deb

   * sudo reboot

ii)

Upon reboot, "sudo xl list" gives following :

##################################################################
debian@debian-armhf:~$ sudo  xl list
[sudo] password for debian:
xencall: error: Could not obtain handle on privileged command interface: No such file or directory
libxl: error: libxl.c:102:libxl_ctx_alloc: cannot open libxc handle: No such file or directory
cannot init xl context
##################################################################

This means that /dev/xen/privcmd (or the legacy /proc/xen/privcmd) device isn't available.

First check that you have actually booted Xen with Linux as dom0.  You don't show any logs in this final section, and simply installing the debball and rebooting won't typically cause Xen to be the head of the boot list.

Yes, I haven't been able to setup xen bootup.

That's why, requested help regarding the changes that are required in https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts, that would cause dom0 to boot up.

Sorry for the confusion.

 

Thanks and Regards,
Ajay

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