testimage: Add testimage_dump_target to kwargs

This passes the list of commands to run on the OEQemuTarget when
the TargetDumper needs to run in a test context due to a failure
on the target.

This is added here as a kwargs because the 'd' dictionary is not
available in the staticmethod getTarget in the
OERuntimeTestContextExecutor class. The OEQemuTarget is different
from the QemuTarget which already uses the list of commands from
testimage_dump_target from 'd'. The create_dir() is needed to
initialize the TargetDumper's dump_dir variable.

(From OE-Core rev: a63675fab4d9f638570912b15a07932f549cc4d1)

Signed-off-by: Saul Wold <saul.wold@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/testimage.bbclass

@@ -319,6 +319,7 @@ def testimage_main(d):
     target_kwargs['powercontrol_extra_args'] = d.getVar("TEST_POWERCONTROL_EXTRA_ARGS") or ""
     target_kwargs['serialcontrol_cmd'] = d.getVar("TEST_SERIALCONTROL_CMD") or None
     target_kwargs['serialcontrol_extra_args'] = d.getVar("TEST_SERIALCONTROL_EXTRA_ARGS") or ""
+    target_kwargs['testimage_dump_target'] = d.getVar("testimage_dump_target") or ""
 
     def export_ssh_agent(d):
         import os

meta/lib/oeqa/core/target/qemu.py

@@ -12,6 +12,7 @@ from collections import defaultdict
 
 from .ssh import OESSHTarget
 from oeqa.utils.qemurunner import QemuRunner
+from oeqa.utils.dump import TargetDumper
 
 supported_fstypes = ['ext3', 'ext4', 'cpio.gz', 'wic']
 
@@ -42,6 +43,9 @@ class OEQemuTarget(OESSHTarget):
                                  dump_host_cmds=dump_host_cmds, logger=logger,
                                  serial_ports=serial_ports, boot_patterns = boot_patterns, 
                                  use_ovmf=ovmf)
+        dump_target_cmds = kwargs.get("testimage_dump_target")
+        self.target_dumper = TargetDumper(dump_target_cmds, dump_dir, self.runner)
+        self.target_dumper.create_dir("qemu")
 
     def start(self, params=None, extra_bootparams=None, runqemuparams=''):
         if self.use_slirp and not self.server_ip: