Merge pull request #5073 from meinaLi/direct_kernel

guest os booting: add new modular case for direct kernel boot

libvirt/tests/cfg/guest_os_booting/direct_kernel_boot/direct_kernel_boot.cfg

@@ -0,0 +1,11 @@
+- guest_os_booting.direct_kernel_boot:
+    type = direct_kernel_boot
+    start_vm = no
+    memory_value = 3573760
+    repo_url = "EXAMPLE_REPO_URL"
+    initrd_url = "${repo_url}/images/pxeboot/initrd.img"
+    vmlinuz_url = "${repo_url}/images/pxeboot/vmlinuz"
+    direct_kernel_dict = {'cmdline': 'console=ttyS0 inst.repo=${repo_url}', 'initrd': '%s', 'kernel': '%s'}
+    variants:
+        - start_guest:
+            check_prompt = "Starting installer"

libvirt/tests/src/guest_os_booting/direct_kernel_boot/direct_kernel_boot.py

@@ -0,0 +1,56 @@
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+#   Copyright Red Hat
+#
+#   SPDX-License-Identifier: GPL-2.0
+
+#   Author: Meina Li <[email protected]>
+#
+import os
+
+from avocado.utils.download import url_download
+
+from virttest import data_dir
+from virttest.libvirt_xml import vm_xml
+
+from provider.guest_os_booting import guest_os_booting_base as guest_os
+
+
+def run(test, params, env):
+    """
+    This case is to verify the direct kernel boot.
+    1) Prepare a guest with direct kernel boot.
+    2) Start the guest.
+    3) Save and restore the guest.
+    """
+    vm_name = params.get("main_vm")
+    memory_value = int(params.get("memory_value", "2097152"))
+    initrd_url = params.get("initrd_url")
+    vmlinuz_url = params.get("vmlinuz_url")
+    check_prompt = params.get("check_prompt")
+
+    vm = env.get_vm(vm_name)
+    vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
+    bkxml = vmxml.copy()
+
+    try:
+        boot_initrd = os.path.join(data_dir.get_data_dir(), "initrd.img")
+        boot_vmlinuz = os.path.join(data_dir.get_data_dir(), "vmlinuz")
+        url_download(initrd_url, boot_initrd)
+        url_download(vmlinuz_url, boot_vmlinuz)
+        direct_kernel_dict = eval(params.get("direct_kernel_dict")
+                                  % (boot_initrd, boot_vmlinuz))
+        vmxml = guest_os.prepare_os_xml(vm_name, direct_kernel_dict)
+        vmxml.set_memory(memory_value)
+        vmxml.set_current_mem(memory_value)
+        vmxml.sync()
+        test.log.debug("The final guest xml is %s", vmxml)
+        if not vm.is_alive():
+            vm.start()
+        vm.serial_console.read_until_any_line_matches([check_prompt], timeout=360)
+    finally:
+        bkxml.sync()
+        for file_path in [boot_initrd, boot_vmlinuz]:
+            if os.path.exists(file_path):
+                os.remove(file_path)