how to enable two vcpu's in Dom0 with xen?

**minimike2** · April 3rd, 2017

Hi there

By booting Ubuntu 16.04 with XEN I've only one CPU available. I think thats an good choise in many scenarios. But for my current project I need the power of two vcpu's on Dom0. What I have to do to get that?
I've tried with

Code:

xl vcpu-set 0 1
xl vcpu-pin 0 1 all all

Code:

xl vcpu-list
Name                                ID  VCPU   CPU State   Time(s) Affinity (Hard / Soft)
Domain-0                             0     0    0   r--     388.1  all / all
Domain-0                             0     1    -   --p       0.0  all / all

But the second core still does not run.

thanks in advance