Virtualization Notes

virtualization_notes.md

Virtualization Notes

N. P. O'Donnell, 2021

Find out if your x86 CPU supports KVM Virtualization

egrep -c '(vmx|svm)' /proc/cpuinfo

Commercial IaaS who use Virtualization

• AWS EC2 -- Uses Xen and more recently KVM
• GCP -- Uses KVM

Virtualization Technologies

Xen

• Invented ~ 2003
• Used in:
  • EC2
  • Qubes OS

KVM

• Main API is libvirt
  • Associated daemon is libvirtd
  • Associated CLI utility is virsh
  • Libvirt supports other virtualization technologies, including Xen

PCI

List PCI devices:

lspci

Verbose:

lspci -v