Add migration test support for s390x. arm and powerpc already support basic migration tests. If a test is in the migration group, it can print "migrate" on its console. This will cause it to be migrated to a new QEMU instance. When migration is finished, the test will be able to read a newline from its standard input. We need the following pieces for this to work under s390x: * read support for the sclp console. This can be very basic, it doesn't even have to read anything useful, we just need to know something happened on the console. * s390/run adjustments to call the migration helper script. Nico Boehr (4): lib: s390x: add support for SCLP console read s390x: add support for migration tests s390x: don't run migration tests under PV s390x: add selftest for migration lib/s390x/sclp-console.c | 81 +++++++++++++++++++++++++++++++++++--- lib/s390x/sclp.h | 7 ++++ s390x/Makefile | 2 + s390x/run | 7 +++- s390x/selftest-migration.c | 27 +++++++++++++ s390x/unittests.cfg | 4 ++ scripts/s390x/func.bash | 2 +- 7 files changed, 122 insertions(+), 8 deletions(-) create mode 100644 s390x/selftest-migration.c -- 2.31.1