An earlier WIP version was posted here: https://lists.gnu.org/archive/html/qemu-devel/2025-10/msg00309.html
In this version I have incorporated all of Daniel Berrange's feedback, and I also tested the change on macOS. The new second patch modifies the test suite to use the new flag unconditionally, instead of open coding setting PR_SET_PDEATHSIG etc. The test suite fails for me both before and after this patch in the same way, so I assume this is nothing to do with the patch itself? 4/405 qemu:func-quick+func-x86_64 / func-x86_64-bad_vmstate ERROR 0.15s exit status 1 Some points of note: - There's no way to find out if the qemu binary supports exit-with-parent=on except to try it. Maybe this should be exposed somehow? - On macOS I wasn't able to find a satisfactory way to force shutdown, except calling 'qemu_system_killed' and pretending we'd been killed by SIGTERM (which does at least emulate what Linux & FreeBSD do). I suppose it'd be nice if there was a "killed by parent" reason which also forced shutdown. Rich.
