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90 lines
2.8 KiB
Markdown
90 lines
2.8 KiB
Markdown
---
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title: On paravirtualized hardware
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description:
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published: true
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date: 2022-01-12T16:45:51.012Z
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tags:
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editor: markdown
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dateCreated: 2022-01-12T14:22:51.514Z
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---
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> *Section under construction*
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{.is-warning}
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# Paravirtual hardware
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*Paravirtual hardware are emulated hardware or devices that can be found in a virtual environment. Contrary to other emulated hardware, they don't intend to mimic a particular piece of real hardware. More details on the [lexicon](/virt/lexicon)*
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In this section, the focus is oriented towards Virtual I/O Devices (VIRTIO), also known as the `virtio` family of devices:
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> This list is not meant to be exhaustive
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{.is-info}
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## Graphical frame buffer
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* [`virtio-gpu`](/virt/virtio/gpu):
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* Paravirtual GPU that provides a subset of the host GPU capabilities to a guest virtual machine
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## Video decoding/encoding
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* [`virtio-video`](/virt/virtio/video):
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* Paravirtual video device that provides encoding and decoding capabilities to a guest virtual machine
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## Sound
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* [`virtio-snd`](/virt/virtio/snd)
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## Storage
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* [`virtio-blk`](/virt/virtio/blk)
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* [`virtio-scsi`](/virt/virtio/scsi)
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* [`virtio-fs`](/virt/virtio/fs)
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## Network
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* [`virtio-net`](/virt/virtio/net)
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## Input devices
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* [`virtio-kbd`](/virt/virtio/blk)
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* [`virtio-tablet`](/virt/virtio/tabket)
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## Miscellaneous
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* [`virtio-rng`](/virt/virtio/rng)
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* [`virtio-crypto`](/virt/virtio/crypto)
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* [`virtio-balloon`](/virt/virtio/balloon)
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* [`virtio-iommu`](/virt/virtio/iommu)
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* [`virtio-console`](/virt/virtio/console)
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## Virtual I/O Devices specifications
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> [OASIS Open](https://www.oasis-open.org/org/) is a non-profit hosting standards related to the IT sector. They host VIRTIO specifications and its technical committee.
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{.is-info}
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* Below is a table showing support of `virtio` devices depending on the specification version
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| **Paravirtual device** | Spec. 1.0 | Spec. 1.1 | Spec. 1.2 |
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| :- | :-: | :-: | :-: |
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| *`virtio-gpu`* | No | **Yes** | **Yes** |
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| *`virtio-video`* | No | No | **Yes** |
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| *`virtio-snd`* | No | No | **Yes** |
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| *`virtio-blk`* | **Yes** | **Yes** | **Yes** |
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| *`virtio-scsi`* | **Yes** | **Yes** | **Yes** |
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| *`virtio-fs`* | No | No | ? |
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| *`virtio-net`* | **Yes** | **Yes** | **Yes** |
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| *`virtio-keyboard`* | No | No | ? |
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| *`virtio-tablet`* | No | No | ? |
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| *`virtio-wayland`* | No | No | ? |
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| *`virtio-console`* | **Yes** | **Yes** | **Yes** |
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## Resources
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* Specifications
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* [Version 1.0](https://docs.oasis-open.org/virtio/virtio/v1.0/virtio-v1.0.html) of the specification for Virtual I/O Devices
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* [Version 1.1](https://docs.oasis-open.org/virtio/virtio/v1.1/csprd01/virtio-v1.1-csprd01.html) of the specification for Virtual I/O Devices
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* OASIS Virtual I/O Device (VIRTIO) [Technical Commitee's Page](https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=virtio)
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