Autodetect KVM

Autodetect KVM by using the 'kvm-ok' command line tool. This has two benefits:

Firstly, it improves the UX of run-qemu-ota when working on machines without
KVM (e.g. AWS). Previously, people had to use the --no-kvm option in these
cases.

Secondary, it makes oe-selftest usable on machines without KVM.  Our tests call
run-qemu-ota, and we want to able to run them on machines without KVM.

1 files changed, 5 insertions, 1 deletions

diff --git a/scripts/run-qemu-ota b/scripts/run-qemu-ota
index 8e25197..56e4fbc 100755
--- a/scripts/run-qemu-ota
+++ b/scripts/run-qemu-ota
@@ -21,7 +21,11 @@ def main():
                              'OSTREE_BOOTLOADER = "grub" and OVMF.fd firmware to be installed (try "apt install ovmf")',
                         action='store_true')
     parser.add_argument('--machine', default=None, help="Target MACHINE")
-    parser.add_argument('--no-kvm', help='Disable KVM in QEMU', action='store_true')
+    kvm_group = parser.add_argument_group()
+    kvm_group.add_argument('--force-kvm', help='Force use of KVM (default is to autodetect)',
+                           dest='kvm', action='store_true', default=None)
+    kvm_group.add_argument('--no-kvm', help='Disable KVM in QEMU',
+                           dest='kvm', action='store_false')
     parser.add_argument('--no-gui', help='Disable GUI', action='store_true')
     parser.add_argument('--gdb', help='Export gdbserver port 2159 from the image', action='store_true')
     parser.add_argument('--pcap', default=None, help='Dump all network traffic')