boot-qemu.py: Implement '--smp'

Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Author: nathanchance

boot-qemu.py

@@ -251,6 +251,13 @@ def parse_arguments():
         '--shell',
         action='store_true',
         help='Instead of immediately shutting down machine, spawn a shell.')
+    parser.add_argument(
+        '-s',
+        '--smp',
+        type=int,
+        help=
+        'Number of processors for virtual machine (default: only KVM machines will use multiple vCPUs.)',
+    )
     parser.add_argument('-t',
                         '--timeout',
                         default='3m',
@@ -282,6 +289,9 @@ def parse_arguments():
     if args.no_kvm:
         runner.use_kvm = False
 
+    if args.smp:
+        runner.smp = args.smp
+
     runner.interactive = args.interactive
     runner.timeout = args.timeout