Re: [PATCH docs v4 3/3] VirGL: add info about feature sets with OpenGL4.6 and vulkan

[Dominik Csapak <d.csapak@proxmox.com>]

one comment inline

Otherwise consider this

Reviewed-by: Dominik Csapak <d.csapak@proxmox.com>

On 8/31/26 11:46 AM, Markus Frank wrote:
> Signed-off-by: Markus Frank <m.frank@proxmox.com>
> ---
> new to v4
> 
>   qm.adoc | 17 +++++++++++++++++
>   1 file changed, 17 insertions(+)
> 
> diff --git a/qm.adoc b/qm.adoc
> index 18a4fbe..12c1752 100644
> --- a/qm.adoc
> +++ b/qm.adoc
> @@ -1047,6 +1047,9 @@ default due to being relatively big and also not available as open source for
>   all GPU models/vendors. For most setups you'll just need to do:
>   `apt install libgl1 libegl1`
>   
> +To use Vulkan (Venus) you also need to install the virgl-server:
> +`apt install virgl-server`
> +
>   You can edit the amount of memory given to the virtual GPU, by setting
>   the 'memory' option. This can enable higher resolutions inside the VM,
>   especially with SPICE/QXL.
> @@ -1066,6 +1069,20 @@ Selecting `serialX` as display 'type' disables the VGA output, and redirects
>   the Web Console to the selected serial port. A configured display 'memory'
>   setting will be ignored in that case.
>   
> +.VirGL Feature Sets
> +
> +|===
> +|Feature Set |Description
> +|`opengl4.3 (Default)` |The default VirGL implementation; does not require a host memory window for blob resources
> +|`opengl4.6` |Adds support for OpenGL 4.6 by adding a host memory window (Default = 2048MiB) for blob resources
> +|`opengl4.6+vulkan` |Adds for OpenGL 4.6 and Vulkan by adding a host memory window for blob resources and enabling venus

here the word 'support' is missing between 'adds' and 'for'

> +|===
> +
> +The VirGL host memory window and blob resources allow a guest VM to
> +directly map and write to host GPU VRAM or system memory without copying
> +overhead, enabling the zero-copy buffer sharing and persistent memory
> +mapping required for Vulkan and OpenGL 4.6.
> +
>   .VNC clipboard
>   You can enable the VNC clipboard by setting `clipboard` to `vnc`.
>