What are the most common problems with Xen?
4.3 I can’t start any HVM guests, I get error “libxl__domain_make domain creation fail: cannot make domain: -3”. PV guests work fine. 4.4 I upgraded PV domU from old Xenlinux kernel to new pvops kernel, and now the domU doesn’t work anymore!
What kind of hypervisor does Citrix use for Xen?
Citrix XenServer is a commercial product that includes the core Xen Project Hypervisor from XenProject.org, combined with CentOS-based dom0 distro, management toolstack, and everything else required to build a ready made virtualization platform. XenServer was Open Sourced in 2014.
Where can I find the Xen source code?
It is distributed as a tarball and from mercurial source code repositories. You need to compile and install Xen hypervisor from sources, and combine it with a kernel of your choice. It can be thought as the “core engine” you can use to build your own virtualization platform.
Is the Xen ARM project still in development?
The Xen ARM project is no longer actively developed. It has been superseded by the Xen ARM with Virtualization Extensions effort. Please see Xen ARM with Virtualization Extensions wiki page for Xen Project on ARMv7 CPUs with Virtualization Extensions. This project is actively developed.
Where can I find the Xen Project hypervisor?
The Xen Project Hypervisor from XenProject.org is the core hypervisor used in many different products. It includes basic command line management tools. It is distributed as a tarball and from mercurial source code repositories. You need to compile and install Xen hypervisor from sources, and combine it with a kernel of your choice.
What kind of virtualization is needed for Xen?
Xen supports running PV (paravirtualized) VMs on any PAE-capable x86 or x86_64 CPU (both Intel and AMD CPUs). Xen requires CPU Virtualization Extensions to run Xen HVM (Fully Virtualized) VMs. CPU Virtualization extensions are called Intel VT-x or AMD-V and they are required for running Xen HVM guests.