linux-kernel - Re: [PATCH] virtio: console: Make resizing compliant with virtio spec

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Message-ID: <20250320114120.383a706f.pasic@linux.ibm.com>
Date: Thu, 20 Mar 2025 11:41:20 +0100
From: Halil Pasic <pasic@...ux.ibm.com>
To: Maximilian Immanuel Brandtner <maxbr@...ux.ibm.com>
Cc: "Michael S. Tsirkin" <mst@...hat.com>, Amit Shah <amit@...nel.org>,
        linux-kernel@...r.kernel.org, virtualization@...ts.linux.dev,
        arnd@...db.de, gregkh@...uxfoundation.org, brueckner@...ux.ibm.com,
        schnelle@...ux.ibm.com, Halil Pasic <pasic@...ux.ibm.com>
Subject: Re: [PATCH] virtio: console: Make resizing compliant with virtio
 spec

On Thu, 20 Mar 2025 08:12:23 +0100
Maximilian Immanuel Brandtner <maxbr@...ux.ibm.com> wrote:

> > Another thing I noticed during looking at this. AFAICT Linux does not
> > seem to handle endiannes here. And AFAIU the message is supposed to
> > hold
> > le16 that is little endian u16! Maximilian, is this in your opinion
> > something we need to fix as well? Or am I just missing the
> > conversion?
> > 
> > Regards,
> > Halil  
> 
> Thanks, I didn't notice that, as I only tested this feature on x86. I
> double checked struct virtio_console_config as it also defines cols
> before rows, but there the kernel follows the spec (including
> endianness).
> I'll send a patch v2 shortly.

I can send a fix for the endiannes issue. It should be a separate
patch anyway.

Regards,
Halil