On Sun, 1 May 2022 at 19:07, Jan Kiszka <jan.kis...@web.de> wrote: > > From: Jan Kiszka <jan.kis...@siemens.com> > > The virt machine lacks a watchdog so far while the sbsa-ref has a simple > model that is also supported by Linux and even U-Boot. Let's take it to > allow, e.g., system integration tests of A/B software update under > watchdog monitoring. > > Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
The virt board has a PCI bus, and QEMU has a model of a PCI watchdog device -- the i6300esb. Can you use that? In general I much prefer it if we can support use cases in virt via pluggable PCI devices rather than hard-wired MMIO devices -- it means that only users who want the functionality need to have the exposed attack surface area of the device present in their VM. thanks -- PMM
