On 1/24/19 1:35 PM, Andrew Jones wrote: > On Thu, Jan 24, 2019 at 02:00:20PM +0100, Andrew Jones wrote: >> [..] >> chr_testdev_init() ensures vcon is NULL if it fails to initialize. >> chr_testdev_exit() immediately returns if vcon is NULL. This was >> done by design to allow fallback exits to be placed below the >> chr_testdev_exit call, e.g. halt(). >> >> We should be able to drop patch 3/7 and change exit() to this >> >> void exit(int code) >> { >> chr_testdev_exit(code); >> psci_system_off(); >> halt(code); >> __builtin_unreachable(); >> } >> > There's also a framework for exits that can't return status codes. powerpc > uses it. Before exiting with psci_system_off we need to make this print > statement > > printf("\nEXIT: STATUS=%d\n", ((code) << 1) | 1); > > And run_qemu in arm/run needs to be changed to run_qemu_status. It's > hacky, but maybe we can live with it until kvmtool offers some sort of > debug exit. > > Thanks, > drew I can make the change, but if I understand the scripts/arch-run.bash code correctly, run_qemu() will check if QEMU was terminated because of a signal and adjust the return code to take that into account. Using run_qemu_status() means that check won't be made when the tests are run under QEMU, is that acceptable?