This is the bridge connected to the network interface of the host. For best performance, do not create guests with more virtual CPUs than the number of physical CPUs on the host. Number of virtual CPUs available to the guest VM. This amount is subtracted from the hypervisor’s total available memory, not the memory of the Dom0. Quantity of RAM in megabytes to make available to the VM. Name of this virtual machine to distinguish it from others running on the same Dom0. generic is the default value and creates a PV domain. Guest operating systems can run unmodified on CPUs with virtualization extensions, providing nearly the same performance as running on physical hardware.
hvm refers to hardware-assisted virtualization or hardware virtual machine. This defines what kind of virtualization to use.
