Talk:Kernel-based Virtual Machine: Difference between revisions

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I couldn't access the project homepage or else I would have looked it up myself. - [[User:Taxman|Taxman]] ^{<small>[[User talk:Taxman|Talk]]</small>} 18:17, 31 January 2007 (UTC)

::Pretty much any OS- KVM provides the guest OS with a fairly vanilla PC (via QEMU's I/O module) that pretty much any PC OS can run on:

:i440FX host PCI bridge, PIIX3 PCI to ISA bridge, Cirrus CLGD 5446 PCI VGA card or dummy VGA card with Bochs VESA extensions, PS/2 mouse and keyboard, 2 PCI IDE interfaces with hard disk and CD-ROM support, (opt) Floppy disk, zero or more NE2000 PCI network adapters, Serial ports, (opt) Creative SoundBlaster 16 sound card, (opt) ENSONIQ AudioPCI ES1370 sound card, (opt) Adlib(OPL2), (opt) Yamaha YM3812 compatible chip, PCI UHCI USB controller and a virtual USB hub, one or more CPUs, with SMP up to 255 CPUs. --[[User:Treekids|Treekids]] 14:36, 4 September 2007 (UTC)

::: As far as I can tell KVM is just a virtual box app. The word 'hypervisor' should not be used here, as it is a term from Xen; 'host' is more appropriate. A VTx CPU is required. <!-- Template:Unsigned IP --><small class="autosigned">—&nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/220.240.250.7|220.240.250.7]] ([[User talk:220.240.250.7|talk]]) 02:20, 28 June 2016 (UTC)</small> <!--Autosigned by SineBot-->

:::: What would be "a virtual box app"? &mdash;&nbsp;[[User:Dsimic|Dsimic]]&nbsp;([[User talk:Dsimic#nobold|talk]]&nbsp;&#124;&nbsp;[[Special:Contributions/Dsimic|contribs]]) 12:00, 28 June 2016 (UTC)

== Update ==

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::How, is that an answer? This article doesn't make it clear. I'm going to edit.[[User:Kckid|Kckid]] ([[User talk:Kckid|talk]]) 21:30, 23 December 2013 (UTC)

:::It is a clear answer: Follow the sources. It's not appropriate for WP to contradict the published requirements. <span style="white-space:nowrap;font-family:'Trebuchet MS'"> — [[User:SMcCandlish|'''SMcCandlish''' ☺]] [[User talk:SMcCandlish|☏]] [[Special:Contributions/SMcCandlish|¢]] ≽^ʌⱷ҅_ᴥⱷ^ʌ≼ </span> 12:15, 15 June 2016 (UTC)

:It's saying that KVM requires hardware <em>virtualization</em>, not hardware <em>emulation</em>. [[User:Luke1337|Luke1337]] ([[User talk:Luke1337|talk]]) 01:01, 10 November 2020 (UTC)

== "offering additional visibility and storage reliability not previously available" ==

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:Done. <span style="white-space:nowrap;font-family:'Trebuchet MS'"> — [[User:SMcCandlish|'''SMcCandlish''' ☺]] [[User talk:SMcCandlish|☏]] [[Special:Contributions/SMcCandlish|¢]] ≽^ʌⱷ҅_ᴥⱷ^ʌ≼ </span> 12:09, 15 June 2016 (UTC)

:: Thank you! &mdash;&nbsp;[[User:Dsimic|Dsimic]]&nbsp;([[User talk:Dsimic#nobold|talk]]&nbsp;&#124;&nbsp;[[Special:Contributions/Dsimic|contribs]]) 10:56, 17 June 2016 (UTC)

== Stable release ==

Mentioning 1.2.0 and 2012 as latest release seems quite misleading, perhaps we should just remove that information? That's only about the old (separate) downloads, as far as I can understand: http://www.linux-kvm.org/page/Downloads [[User:Nemo_bis|Nemo]] 07:59, 10 February 2017 (UTC)

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== VirtIO ==

VirtIO redirect to this article. There should be a section about VirtIO. Takers? [[Special:Contributions/109.192.123.125|109.192.123.125]] ([[User talk:109.192.123.125|talk]]) 13:47, 6 October 2017 (UTC)

:: VirtIO no longer redirects to this article, but to QEMU, which is a more appropriate place for it. KVM is not actually involved in presenting a device model to guests. There should probably be a dedicated page for VirtIO, since it's not specific to QEMU either, but we can leave that for another time. [[User:Nmeyerhans|Nmeyerhans]] ([[User talk:Nmeyerhans|talk]]) 05:05, 11 March 2021 (UTC)

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== Confusion between QEMU and KVM ==

A lot of information in this article seems to be concerned with QEMU rather than KVM. Sections "graphical management tools" and "emulated hardware" are especially irrelevant to KVM and most of their contents apply to QEMU (or <code>qemu-kvm</code>). Section "emulated hardware" also contradicts with the prior statement that KVM does not perform emulation. [[User:Magic sergeant|Magic sergeant]] ([[User talk:Magic sergeant|talk]]) 03:40, 21 November 2018 (UTC)

:: I deleted most of the hardware emulation content here and updated the text to indicate that device emulation is provided by the userspace application. There are several available, each of which presents a different device model. KVM itself emulates very few devices. [[User:Nmeyerhans|Nmeyerhans]] ([[User talk:Nmeyerhans|talk]]) 16:53, 11 March 2021 (UTC)

== Clarification of the emulation confusion ==

I’ve tried to clarify the confusion about emulation mention in the note in the “Emulated Hardware” section. Please check if it is clear now and change or remove the note <!-- Template:Unsigned --><small class="autosigned">—&nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[User:Rafimoor|Rafimoor]] ([[User talk:Rafimoor#top|talk]] • [[Special:Contributions/Rafimoor|contribs]]) 04:18, 31 August 2019 (UTC)</small> <!--Autosigned by SineBot-->

[[User:Rafimoor|Rafimoor]] ([[User talk:Rafimoor|talk]]) 04:20, 31 August 2019 (UTC)

== Layman inconsistencies in the artle ==

I'm not an expert but these two statements seem to entirely contradict each other.

"KVM provides device abstraction but no processor emulation."

and:

"KVM itself emulates very little hardware, instead deferring to a higher level client application such as QEMU, crosvm, or Firecracker for device emulation.

KVM provides the following emulated devices:

Virtual CPU and memory

VirtIO"

This needs to be clarified because it makes no sense. [[Special:Contributions/2601:646:9E01:B460:2D40:3293:BD31:BF66|2601:646:9E01:B460:2D40:3293:BD31:BF66]] ([[User talk:2601:646:9E01:B460:2D40:3293:BD31:BF66|talk]]) 19:22, 7 July 2024 (UTC)