Teach the harness a --coco=tdx|sev-snp|any flag: it gates the test on
host coco capability (exit 77 otherwise), binds /dev/kvm and the coco
device(s) into the boot-mode container, and passes the resolved type to
the test via $COCO_TYPE.
TEST-94-COCO boots the mkosi image as a confidential guest with
systemd-vmspawn --coco= (using the /vm-images bind) and checks the guest
reports the expected type via systemd-detect-virt --cvm. Runs only on
coco-capable bare-metal hosts, skips elsewhere.
Signed-off-by: Paul Meyer <katexochen0@gmail.com>
Paul Meyer
b89729b16a