Re: [PATCH qemu.git 0/1] hw/arm/virt: make second UART available

["Alex Bennée" <alex.bennee@linaro.org>]

~axelheider <axelheider@git.sr.ht> writes:

> This is a follow-up on older attempts to make a second UART
> available for the arm-virt machine in normal world. The use case
> is, that this give a simple I/O channel in addition to stdout, as this
> simplifies various test scenarios. Especially for non-Linux operating
> system,s (e.g. seL4) where arm-virt is handy as a generic machine
> for testing purposes.
>
> There are existing discussions about this topic at:
> - https://lists.gnu.org/archive/html/qemu-arm/2017-12/msg00063.html
> - https://lists.nongnu.org/archive/html/qemu-
> discuss/2018-11/msg00001.html
> - https://lists.gnu.org/archive/html/qemu-devel/2019-12/msg01613.html
>
> This patch tries to address the concerns raised there and also
> avoid breaking compatibility with existing setups.
>
> Axel Heider (1):
>   hw/arm/virt: make second UART available
>
>  hw/arm/virt-acpi-build.c | 12 ++++-----
>  hw/arm/virt.c            | 55 ++++++++++++++++++++++++++++++----------
>  include/hw/arm/virt.h    |  4 +--
>  3 files changed, 49 insertions(+), 22 deletions(-)

It would also be worth updating ./docs/system/arm/virt.rst to document
this feature. 

-- 
Alex Bennée