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Re: Xen 4.14.1 on RPI4: device tree generation failed

To: Tamas K Lengyel <tamas.k.lengyel@xxxxxxxxx>
From: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Date: Mon, 1 Feb 2021 10:51:50 -0800 (PST)
Cc: Elliott Mitchell <ehem+xen@xxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
Delivery-date: Mon, 01 Feb 2021 18:52:07 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Sun, 31 Jan 2021, Tamas K Lengyel wrote:
> This seems to have been caused by a monitor being attached to the HDMI
> port, with HDMI unplugged dom0 boots OK.

FYI others have reported issues with swiotlb-xen when using graphics:
https://marc.info/?l=xen-devel&m=161201486021603 Disabling swiotlb-xen
makes it work for them.

References:
- Re: Xen 4.14.1 on RPI4: device tree generation failed
  - From: Elliott Mitchell
- Re: Xen 4.14.1 on RPI4: device tree generation failed
  - From: Tamas K Lengyel
- Re: Xen 4.14.1 on RPI4: device tree generation failed
  - From: Tamas K Lengyel

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