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(-) -- 2.34.5
