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2. VirtualBox - Wikipedia

   en.wikipedia.org/wiki/VirtualBox

   Users of VirtualBox can load multiple guest OSes under a single host operating-system (host OS). Each guest can be started, paused and stopped independently within its own virtual machine (VM). The user can independently configure each VM and run it under a choice of software-based virtualization or hardware assisted virtualization if the ...

3. Live migration - Wikipedia

   en.wikipedia.org/wiki/Live_migration

   Post-copy sends each page exactly once over the network whereas pre-copy can transfer the same page multiple times if the page is dirtied repeatedly at the source during migration. On the other hand, pre-copy retains an up-to-date state of the VM at the source during migration, whereas during post-copy, the VM's state is split across the source ...

4. System virtual machine - Wikipedia

   en.wikipedia.org/wiki/System_virtual_machine

   Multiple VMs running their own guest operating system are frequently engaged for server consolidation in order to avoid interference from separate VMs on the same actual machine platform. The desire to run multiple operating systems was the initial motivation for virtual machines, so as to allow time-sharing among several single-tasking ...

5. Oracle VM Server for x86 - Wikipedia

   en.wikipedia.org/wiki/Oracle_VM_Server_for_x86

   Oracle VM Server for x86 is a server virtualization offering from Oracle Corporation.Oracle VM Server for x86 incorporates the free and open-source Xen hypervisor technology, supports Windows, Linux, and Solaris [3] guests and includes an integrated Web based management console.

6. Migration (virtualization) - Wikipedia

   en.wikipedia.org/wiki/Migration_(virtualization)

   In the context of virtualization, where a guest simulation of an entire computer is actually merely a software virtual machine (VM) running on a host computer under a hypervisor, migration (also known as teleportation, [1] also known as live migration) is the process by which a running virtual machine is moved from one physical host to another, with little or no disruption in service.

7. Second Level Address Translation - Wikipedia

   en.wikipedia.org/wiki/Second_Level_Address...

   By treating each guest-physical address as a host-virtual address, a slight extension of the hardware used to walk a non-virtualized page table (now the guest page table) can walk the host page table. With multilevel page tables the host page table can be viewed conceptually as nested within the guest page table. A hardware page table walker ...

8. Hardware virtualization - Wikipedia

   en.wikipedia.org/wiki/Hardware_virtualization

   The guest software executes as if it were running directly on the physical hardware, with several notable caveats. Access to physical system resources (such as the network access, display, keyboard, and disk storage) is generally managed at a more restrictive level than the host processor and system-memory.

9. Virtual firewall - Wikipedia

   en.wikipedia.org/wiki/Virtual_firewall

   The VF can be realized as a traditional software firewall on a guest virtual machine already running, a purpose-built virtual security appliance designed with virtual network security in mind, a virtual switch with additional security capabilities, or a managed kernel process running within the host hypervisor.