From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zen.linaroharston ([185.81.254.11]) by smtp.gmail.com with ESMTPSA id g13-20020a05600c310d00b003a2f2bb72d5sm8149292wmo.45.2022.11.30.11.12.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Nov 2022 11:12:47 -0800 (PST) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 6C4C21FFB7; Wed, 30 Nov 2022 19:12:46 +0000 (GMT) References: <166982763526.10484.9925072056712598801-0@git.sr.ht> User-agent: mu4e 1.9.3; emacs 29.0.60 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: ~axelheider Cc: qemu-devel@nongnu.org, peter.maydell@linaro.org, daniel.thompson@linaro.org, ~axelheider , qemu-arm@nongnu.org Subject: Re: [PATCH qemu.git 0/1] hw/arm/virt: make second UART available Date: Wed, 30 Nov 2022 19:11:21 +0000 In-reply-to: <166982763526.10484.9925072056712598801-0@git.sr.ht> Message-ID: <87o7socl3l.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-TUID: 5BAkmpVTJaYG ~axelheider 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.=20 --=20 Alex Benn=C3=A9e