qemu-kvm/kvm-Acceptance-tests-add-Linux-initrd-checking-test.patch

From ba8f254594f7033183cda79b47e2c7a5c1f5bcfe Mon Sep 17 00:00:00 2001
From: Yash Mankad <ymankad@redhat.com>
Date: Mon, 4 Feb 2019 19:14:22 +0000
Subject: [PATCH 1/8] Acceptance tests: add Linux initrd checking test
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RH-Author: Yash Mankad <ymankad@redhat.com>
Message-id: <cd36327815bc6d0836e5a51237f13302ef7eda25.1549307526.git.ymankad@redhat.com>
Patchwork-id: 84209
O-Subject: [RHEL-8.0/AV qemu-kvm PATCH 1/1] Acceptance tests: add Linux initrd checking test
Bugzilla: 1669922
RH-Acked-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>

From: Wainer dos Santos Moschetta <wainersm@redhat.com>

QEMU used to exits with a not accurate error message when
an initrd > 2GiB was passed. That was fixed on patch:

	commit f3839fda5771596152b75dd1e1a6d050e6e6e380
	Author: Li Zhijian <lizhijian@cn.fujitsu.com>
	Date:   Thu Sep 13 18:07:13 2018 +0800

    	change get_image_size return type to int64_t

This change adds a regression test for that fix. It starts
QEMU with a 2GiB dummy initrd, and checks that it evaluates the
file size correctly and prints an accurate message.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Caio Carrara <ccarrara@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181109182153.5390-1-wainersm@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
(cherry picked from commit 82d4c923a580751c86dc0852a7cc8e369a78e8ad)
Signed-off-by: Yash Mankad <ymankad@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
 tests/acceptance/linux_initrd.py | 48 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 tests/acceptance/linux_initrd.py

diff --git a/tests/acceptance/linux_initrd.py b/tests/acceptance/linux_initrd.py
new file mode 100644
index 0000000..737355c
--- /dev/null
+++ b/tests/acceptance/linux_initrd.py
@@ -0,0 +1,48 @@
+# Linux initrd acceptance test.
+#
+# Copyright (c) 2018 Red Hat, Inc.
+#
+# Author:
+#  Wainer dos Santos Moschetta <wainersm@redhat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
+
+import tempfile
+from avocado.utils.process import run
+
+from avocado_qemu import Test
+
+
+class LinuxInitrd(Test):
+    """
+    Checks QEMU evaluates correctly the initrd file passed as -initrd option.
+
+    :avocado: enable
+    :avocado: tags=x86_64
+    """
+
+    timeout = 60
+
+    def test_with_2gib_file_should_exit_error_msg(self):
+        """
+        Pretends to boot QEMU with an initrd file with size of 2GiB
+        and expect it exits with error message.
+        """
+        kernel_url = ('https://mirrors.kernel.org/fedora/releases/28/'
+                      'Everything/x86_64/os/images/pxeboot/vmlinuz')
+        kernel_hash = '238e083e114c48200f80d889f7e32eeb2793e02a'
+        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
+        max_size = 2 * (1024 ** 3) - 1
+
+        with tempfile.NamedTemporaryFile() as initrd:
+            initrd.seek(max_size)
+            initrd.write(b'\0')
+            initrd.flush()
+            cmd = "%s -kernel %s -initrd %s" % (self.qemu_bin, kernel_path,
+                                                initrd.name)
+            res = run(cmd, ignore_status=True)
+            self.assertEqual(res.exit_status, 1)
+            expected_msg = r'.*initrd is too large.*max: \d+, need %s.*' % (
+                max_size + 1)
+            self.assertRegex(res.stderr_text, expected_msg)
-- 
1.8.3.1