Hypervisor - Revision history

Jnc: Add some links

2024-01-13T13:11:29Z

Add some links

Flx: re-order section

2023-12-18T11:22:23Z

re-order section

Flx: early IBM implementations

2023-12-18T11:21:37Z

early IBM implementations

Flx: examples of Type 1 vs Type 2 hypervisors + diagram

2023-12-18T11:16:21Z

examples of Type 1 vs Type 2 hypervisors + diagram

Jnc: +cat

2018-12-16T21:21:35Z

+cat

Jnc: An acceptable start...

2018-11-01T12:36:50Z

An acceptable start...

New page

A '''hypervisor''' is a [[software]] package which provides [[virtual machine]]s.

There are two main types: 'native' hypervisors, which are [[operating system]]s which run directly on the bare machine, and 'hosted' hypervisors, which are [[application]]s which run under a general-purpose OS.

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 * Type 2 - 'hosted' hypervisors, which are [[application]]s which run under a general-purpose OS.
-The Type 2 hypervisors, for example VMware Workstation or Oracle VirtualBox, run as an application within the host operating system, ex: as a Linux or Windows program. To minimize overhead, Type 1 hypervisors avoid the need for the host to run another operating system, and they instead run directly on the bare-metal hardware. Examples of Type 1 hypervisors include VMware ESXi, Microsoft Hyper-V, and KVM.
+The Type 2 hypervisors, for example [[VMware Workstation]] or Oracle [[VirtualBox]], run as an application within the host operating system, ex: as a [[Linux]] or [[Windows]] program. To minimize overhead, Type 1 hypervisors avoid the need for the host to run another operating system, and they instead run directly on the bare-metal hardware. Examples of Type 1 hypervisors include [[VMware ESXi]], Microsoft [[Hyper-V]], and [[KVM]].
 [[File:Hypervisor-type1vs2.png]]
-Early hypervisors were created by IBM, including [[CP_operating_system|CP/CPS]] and [[VM/370]], which allowed for creating VMs of different operating systems on the mainframe.
+Early hypervisors were created by IBM, including [[CP_operating_system|CP/CPS]] and [[VM/370]], which allowed for creating VMs of different operating systems on the [[mainframe]].
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 [[Category: OS Concepts]]

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 The Type 2 hypervisors, for example VMware Workstation or Oracle VirtualBox, run as an application within the host operating system, ex: as a Linux or Windows program. To minimize overhead, Type 1 hypervisors avoid the need for the host to run another operating system, and they instead run directly on the bare-metal hardware. Examples of Type 1 hypervisors include VMware ESXi, Microsoft Hyper-V, and KVM.
 Early hypervisors were created by IBM, including [[CP_operating_system|CP/CPS]] and [[VM/370]], which allowed for creating VMs of different operating systems on the mainframe.
 {{semi-stub}}
 [[Category: OS Concepts]]

← Older revision		Revision as of 11:21, 18 December 2023
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	The Type 2 hypervisors, for example VMware Workstation or Oracle VirtualBox, run as an application within the host operating system, ex: as a Linux or Windows program. To minimize overhead, Type 1 hypervisors avoid the need for the host to run another operating system, and they instead run directly on the bare-metal hardware. Examples of Type 1 hypervisors include VMware ESXi, Microsoft Hyper-V, and KVM.		The Type 2 hypervisors, for example VMware Workstation or Oracle VirtualBox, run as an application within the host operating system, ex: as a Linux or Windows program. To minimize overhead, Type 1 hypervisors avoid the need for the host to run another operating system, and they instead run directly on the bare-metal hardware. Examples of Type 1 hypervisors include VMware ESXi, Microsoft Hyper-V, and KVM.
		+
		+	Early hypervisors were created by IBM, including [[CP_operating_system\|CP/CPS]] and [[VM/370]], which allowed for creating VMs of different operating systems on the mainframe.

	[[File:Hypervisor-type1vs2.png]]		[[File:Hypervisor-type1vs2.png]]

← Older revision		Revision as of 21:21, 16 December 2018
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		+	[[Category: OS Concepts]]

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 A '''hypervisor''' is a [[software]] package which provides [[virtual machine]]s.
-There are two main types: 'native' hypervisors, which are [[operating system]]s which run directly on the bare machine, and 'hosted' hypervisors, which are [[application]]s which run under a general-purpose OS.
+There are two main types of hypervisors, classified by their level of abstraction from the physical hardware:
 {{semi-stub}}
 [[Category: OS Concepts]]