Hypervisor

In computing, a hypervisor or virtual machine manager (VMM) is a piece of computer software, firmware or hardware that creates and runs virtual machines.

A computer on which a hypervisor is running one or more virtual machines is a host machine. Each of those virtual machines is called a guest machine. The hypervisor presents to the guest operating systems a virtual operating platform and manages the execution of the guest operating systems. Multiple instances of a variety of operating systems may share the virtualized hardware resources.

Read more about HypervisorHistory, Classification, Mainframe Origins, UNIX and Linux Servers, PCs and Desktop Systems, Embedded Systems, Security Implications

Other articles related to "hypervisor, hypervisors":

Definitions - Embedded Hypervisor
... An embedded hypervisor is a type 1 hypervisor that supports the requirements of embedded systems development and is designed into the embedded device from the outset, rather than loaded ... The requirements for a hypervisor architecture suitable for embedded applications is quite distinct from hypervisors aimed at enterprise applications, which have a ... A small, fast type 1 hypervisor with support for multiple VMs Support for lightweight but secure encapsulation of medium-grain subsystem components that interact strongly High-bandwidth, low-latency ...
Hypervisor - Security Implications
... The use of hypervisor technology by malware and rootkits installing themselves as a hypervisor below the operating system can make them more difficult to detect because ... been disputed by others who claim that it would indeed be possible to detect the presence of a hypervisor-based rootkit ... from Microsoft and North Carolina State University demonstrated a hypervisor-layer anti-rootkit called Hooksafe that can provide generic protection against kernel-mode rootkits ...
Embedded Hypervisor - Definitions - Hypervisor
... A hypervisor provides a software virtualization environment in which other software, including operating systems, can run with the appearance of full access to ... The software running in such a hypervisor managed environment is said to be executing within a virtual machine (VM) ... Multiple VMs may be managed simultaneously by a hypervisor ...
VM (operating System) - Hypervisor Interface
... This is because CMS relies on a hypervisor interface to VM-CP, to perform file system operations and request other VM services ... The term "hypervisor" was probably coined during IBM's implementation of VM/370, when it was used to refer to the virtual DIAG handler ...
Sun X VM - Products - Sun XVM Hypervisor
... The Sun xVM hypervisor is a component of the Solaris Operating System based on the work that was being done in the OpenSolaris Xen community ... It provided the standard features of a Xen-based hypervisor on x86-based systems ...