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docs: update gofurther/vfio-mdev

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lukas 2025-06-06 18:26:19 +00:00
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gofurther/vfio-mdev.md
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@ -2,7 +2,7 @@
title: Virtual Function I/O Mediated devices (vfio-mdev)
description: Create and Configure Virtual Function I/O Mediated devices (vfio-mdev)
published: true
date: 2025-04-04T11:33:57.079Z
date: 2025-06-06T18:26:17.457Z
tags:
editor: markdown
dateCreated: 2022-07-21T21:10:41.046Z
@ -126,7 +126,7 @@ $ mdevctl list --defined
</domain>
```
* Start the machine in headless mode. It is possible to connect to this machine over a console interface.
* Start the machine in headless mode. It is possible to connect to this machine over a console interface.
## Add a display device
@ -136,17 +136,17 @@ $ mdevctl list --defined
<device>
[...]
<graphics type="spice">
<listen type="none"/>
<listen type="none"/>
<gl enable="yes" rendernode="/dev/dri/by-path/pci-0000:00:02.0-render"/>
</graphics>
[...]
</device>
</device>
```
> When associated with OpenGL, Spice will only work locally
> When associated with OpenGL, Spice will only allow local connection
{.is-info}
- Modify the vGPU setting to set display and RAMFB to *on*
- Modify the vGPU setting to set display and RAMFB to *on*. Also, it is [necessary](https://wiki.archlinux.org/title/Intel_GVT-g#Using_DMA-BUF_with_UEFI/OVMF) to feed it a rom.
```
<domain type="kvm">
@ -154,7 +154,8 @@ $ mdevctl list --defined
<device>
[...]
<hostdev mode="subsystem" type="mdev" managed="no" model="vfio-pci" display="on" ramfb="on">
<source>
<rom bar="on" file="/var/lib/libvirt/isos/vbios_gvt_uefi.rom"/>
<source>
<address uuid="7686131b-b229-4768-a02c-35d1dbed7c66"/>
</source>
</hostdev>