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Date: Tue, 14 Sep 2021 17:30:46 +0200
From: Christoph Hellwig <hch@lst.de>
To: Jan Beulich <jbeulich@suse.com>
Subject: Re: [PATCH] swiotlb: set IO TLB segment size via cmdline
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On Tue, Sep 14, 2021 at 05:29:07PM +0200, Jan Beulich wrote:
> I'm not convinced the swiotlb use describe there falls under "intended
> use" - mapping a 1280x720 framebuffer in a single chunk? (As an aside,
> the bottom of this page is also confusing, as following "Then we can
> confirm the modified swiotlb size in the boot log:" there is a log
> fragment showing the same original size of 64Mb.

It doesn't.  We also do not add hacks to the kernel for whacky out
of tree modules.