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Windows 10 64-bit and higher. Support for 64-bit Windows was added with VirtualBox 1.5. Support for 32-bit Windows was removed in 6.0. Support for Windows 2000 was removed in version 1.6. [76] [77] Support for Windows XP was removed in version 5.0. [78] [79] Support for Windows Vista was removed in version 5.2.
^ See [20] for a paper comparing performance of paravirtualization approaches (e.g. Xen) with OS-level virtualization ^ Requires patches/recompiling. ^ Exceptional for lightweight, paravirtualized , single-user VM/CMS interactive shell: largest customers run several thousand users on even single prior models.
In fixed pass-through or GPU pass-through (a special case of PCI pass-through), a GPU is accessed directly by a single virtual machine exclusively and permanently. This technique achieves 96–100% of native performance [ 3 ] and high fidelity, [ 1 ] but the acceleration provided by the GPU cannot be shared between multiple virtual machines.
Paravirtualization improves performance and efficiency, compared to full virtualization, by having the guest operating system communicate with the hypervisor. By allowing the guest operating system to indicate its intent to the hypervisor, each can cooperate to obtain better performance when running in a virtual machine.
In 2009, Microsoft released Windows Virtual PC, which is only compatible with Windows 7 hosts, [a] and is the technical foundation for the latter's Windows XP Mode. Windows Virtual PC does not officially support MS-DOS or operating systems older than Windows XP Professional SP3 as guests. [3] Virtual PC was discontinued in 2011 in favour of ...
OS-level virtualization is an operating system (OS) virtualization paradigm in which the kernel allows the existence of multiple isolated user space instances, including containers (LXC, Solaris Containers, AIX WPARs, HP-UX SRP Containers, Docker, Podman), zones (Solaris Containers), virtual private servers (), partitions, virtual environments (VEs), virtual kernels (DragonFly BSD), and jails ...
In situations where continued operations of hardware virtualization platforms is important, a disaster recovery plan can ensure hardware performance and maintenance requirements are met. A hardware virtualization disaster recovery plan involves both hardware and software protection by various methods, including those described below.
x86 virtualization is the use of hardware-assisted virtualization capabilities on an x86/x86-64 CPU.. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of hardware-assisted virtualization capabilities while attaining reasonable performance.