testimage: Allow testing on QEMU machines with a single serial port

commmit 6cde67d0a84 enables the use of qemurunner on machines that
only have a single serial port, but still sets the default value
as serial_ports=2 if not provided.

The testimage class does not call qemurunner with a serial_ports
argument, hence always defaulting to two.

Pass the serial_ports argument from the testimage class to allow
tests to run on QEMU machines with a single serial port.

(From OE-Core rev: a50d0163770f0b405a8de8a8a9cccd48c1de4112)

Signed-off-by: Alejandro Hernandez Samaniego <alejandro@enedino.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/classes/testimage.bbclass b/meta/classes/testimage.bbclass
index 844ed87944..0d55c3247e 100644
--- a/meta/classes/testimage.bbclass
+++ b/meta/classes/testimage.bbclass
@@ -256,6 +256,7 @@ def testimage_main(d):
                       'kvm'         : kvm,
                       'slirp'       : slirp,
                       'dump_dir'    : d.getVar("TESTIMAGE_DUMP_DIR"),
+                      'serial_ports': len(d.getVar("SERIAL_CONSOLES").split()),
                     }
 
     # TODO: Currently BBPATH is needed for custom loading of targets.