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Kernel-based Virtual Machine (KVM) is a free and open-source virtualization module in the Linux kernel that allows the kernel to function as a hypervisor. It was merged into the mainline Linux kernel in version 2.6.20, which was released on February 5, 2007. [ 1 ]
Parallels Desktop for Mac is a hypervisor providing hardware virtualization for Mac computers. It is developed by Parallels, a subsidiary of Corel.. Parallels was initially developed for Macintosh systems with Intel processors, with version 16.5 introducing support for Macs with Apple silicon.
Optimized for macOS 11 Big Sur as host and guest (macOS 10.15 Catalina is also supported as host). New guest operating system support, such as Windows 10 20H2, Ubuntu 20.10, RHEL 8.3, and Fedora 33. New guest operating system support, such as Windows 10 20H2, Ubuntu 20.10, RHEL 8.3, and Fedora 33.
DOS, Linux, macOS, [8] FreeBSD, Haiku, OS/2, Solaris, Syllable, Windows, and OpenBSD (with Intel VT-x or AMD-V, due to otherwise tolerated incompatibilities in the emulated memory management). [ 9 ] GPL version 2; full version with extra enterprise features is proprietary
macOS from version 11 to 14 both ARM and Intel versions: Preliminary Mac OS X support (beta stage) was added with VirtualBox 1.4, full support with 1.6. Support for Mac OS X 10.4 (Tiger) and earlier was removed with VirtualBox 3.1. [83] [84] Support for Mac OS X 10.5 (Leopard) was removed with VirtualBox 4.2. [85] [86]
Intel's Hardware Accelerated Execution Manager (HAXM) is an open-source alternative [15] to KVM for x86-based hardware-assisted virtualization on NetBSD, Linux, Windows and macOS using Intel VT. As of 2013 [update] Intel mostly solicits its use with QEMU for Android development. [ 16 ]
Proxmox VE is an open-source server virtualization platform to manage two virtualization technologies: Kernel-based Virtual Machine (KVM) for virtual machines and LXC for containers - with a single web-based interface. [11]
In computing, kernel same-page merging (KSM), also known as kernel shared memory, memory merging, memory deduplication, and page deduplication is a kernel feature that makes it possible for a hypervisor system to share memory pages that have identical contents between multiple processes or virtualized guests.