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The Guest Additions for Windows, Linux, Solaris, OpenSolaris, and OS/2 guests include a special video-driver that increases video performance and includes additional features, such as automatically adjusting the guest resolution when resizing the VM window [38] and desktop composition via virtualized WDDM drivers.
Oracle VirtualBox (formerly OSE, GPLv2), with Guest Additions (GPLv2) [28] Yes Yes Yes Yes Yes Yes branched [29] Yes Yes with Guest Additions [30] with Guest Additions [30] No Oracle VirtualBox with Extension Pack (PUEL) and Guest Additions (GPLv2) [28] Yes Yes Yes Yes OpenGL 2.0 and Direct3D 8/9 [31] Yes branched [29] Yes Yes Yes Yes
However, installing Virtual Machine Additions from an older Microsoft virtualization product works for some guest OSes. [ 32 ] [ 33 ] [ 34 ] Properties of the virtual machine, like guest OS, processor, processor features, video mode, video RAM, code cache, IDE controller reads and writes, Ethernet reads and writes, video frame rate and command ...
It also provided "additions" code which greatly improves host–guest OS interactions in OS/2. The additions are not provided with the current version of VirtualPC, but the version last included with a release may still be used with current releases. At one point, OS/2 was a supported host for VirtualPC in addition to a guest.
Hyper-V is a native hypervisor developed by Microsoft; it can create virtual machines on x86-64 systems running Windows. [1] It is included in Pro and Enterprise editions of Windows NT (since Windows 8) as an optional feature to be manually enabled. [2]
GPU virtualization refers to technologies that allow the use of a GPU to accelerate graphics or GPGPU applications running on a virtual machine.GPU virtualization is used in various applications such as desktop virtualization, [1] cloud gaming [2] and computational science (e.g. hydrodynamics simulations).
VMware ESXi (formerly ESX) is an enterprise-class, type-1 hypervisor developed by VMware, a subsidiary of Broadcom, for deploying and serving virtual computers.As a type-1 hypervisor, ESXi is not a software application that is installed on an operating system (OS); instead, it includes and integrates vital OS components, such as a kernel.
As with KQEMU, VirtualBox runs nearly all guest code natively on the host via the VMM (Virtual Machine Manager) and uses the re-compiler only as a fallback mechanism – for example, when guest code executes in real mode. [22] In addition, VirtualBox did a lot of code analysis and patching using a built-in disassembler to minimize recompilation.