contest: vm: let user add qemu options

Setting QEMU options via virtme_opts is hard, because QEMU
opts may contain , which virtme_opts treat as separator.

Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

contest/remote/lib/vm.py

@@ -37,6 +37,7 @@
 configs=relative/path/config,another/config
 init_prompt=expected_on-boot#
 virtme_opt=--opt,--another one
+qemu_opt=--opt,this is --same one
 default_timeout=15
 boot_timeout=45
 slowdown=2.5 # mark the machine as slow and multiply the ksft timeout by 2.5
@@ -181,6 +182,9 @@ def start(self, cwd=None):
         opts = self.config.get('vm', 'virtme_opt', fallback="")
         cmd += opts.split(',') if opts else []
 
+        opts = self.config.get('vm', 'qemu_opt', fallback="")
+        cmd += ["-o", " " + opts] if opts else []
+
         cpus = self.config.get('vm', 'cpus', fallback="")
         if cpus:
             cmd += ["--cpus", cpus]