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Re: EDK2 ArmVirtQemu behaviour with multiple UARTs


From: Gerd Hoffmann
Subject: Re: EDK2 ArmVirtQemu behaviour with multiple UARTs
Date: Thu, 21 Sep 2023 17:25:58 +0200

On Thu, Sep 21, 2023 at 11:50:20AM +0100, Peter Maydell wrote:
> Hi; I've been looking again at a very long standing missing feature in
> the QEMU virt board, which is that we only have one UART. One of the
> things that has stalled this in the past has been the odd behaviour of
> EDK2 if the DTB that QEMU passes it describes two UARTs.

Note that edk2 recently got support for virtio-serial, so you can use
that for the console and leave the uart for debug logging.  The prebuild
edk2 binaries in qemu have been updated days ago and these already
support for virtio-serial..

take care,
  Gerd




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