diff mbox series

[v2,6/7] kunit: Add 'kunit_shutdown' option

Message ID 20200130230812.142642-7-brendanhiggins@google.com
State Not Applicable
Headers show
Series kunit: create a centralized executor to dispatch all KUnit tests | expand

Commit Message

Brendan Higgins Jan. 30, 2020, 11:08 p.m. UTC 
From: David Gow <davidgow@google.com>

Add a new kernel command-line option, 'kunit_shutdown', which allows the
user to specify that the kernel poweroff, halt, or reboot after
completing all KUnit tests; this is very handy for running KUnit tests
on UML or a VM so that the UML/VM process exits cleanly immediately
after running all tests without needing a special initramfs.

Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
---
 lib/kunit/executor.c                | 20 ++++++++++++++++++++
 tools/testing/kunit/kunit_kernel.py |  2 +-
 tools/testing/kunit/kunit_parser.py |  2 +-
 3 files changed, 22 insertions(+), 2 deletions(-)

Comments

Frank Rowand Feb. 4, 2020, 11:05 p.m. UTC | #1 
On 1/30/20 5:08 PM, Brendan Higgins wrote:
> From: David Gow <davidgow@google.com>
> 
> Add a new kernel command-line option, 'kunit_shutdown', which allows the
> user to specify that the kernel poweroff, halt, or reboot after
> completing all KUnit tests; this is very handy for running KUnit tests
> on UML or a VM so that the UML/VM process exits cleanly immediately
> after running all tests without needing a special initramfs.

kunit_shutdown needs to be added to Documentation/admin-guide/kernel-parameters.txt

-Frank

> 
> Signed-off-by: David Gow <davidgow@google.com>
> Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
> Reviewed-by: Stephen Boyd <sboyd@kernel.org>
> ---
>  lib/kunit/executor.c                | 20 ++++++++++++++++++++
>  tools/testing/kunit/kunit_kernel.py |  2 +-
>  tools/testing/kunit/kunit_parser.py |  2 +-
>  3 files changed, 22 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
> index 7fd16feff157e..a93821116ccec 100644
> --- a/lib/kunit/executor.c
> +++ b/lib/kunit/executor.c
> @@ -1,5 +1,6 @@
>  // SPDX-License-Identifier: GPL-2.0
>  
> +#include <linux/reboot.h>
>  #include <kunit/test.h>
>  
>  /*
> @@ -11,6 +12,23 @@ extern struct kunit_suite * const * const __kunit_suites_end[];
>  
>  #if IS_BUILTIN(CONFIG_KUNIT)
>  
> +static char *kunit_shutdown;
> +core_param(kunit_shutdown, kunit_shutdown, charp, 0644);
> +
> +static void kunit_handle_shutdown(void)
> +{
> +	if (!kunit_shutdown)
> +		return;
> +
> +	if (!strcmp(kunit_shutdown, "poweroff"))
> +		kernel_power_off();
> +	else if (!strcmp(kunit_shutdown, "halt"))
> +		kernel_halt();
> +	else if (!strcmp(kunit_shutdown, "reboot"))
> +		kernel_restart(NULL);
> +
> +}
> +
>  static void kunit_print_tap_header(void)
>  {
>  	struct kunit_suite * const * const *suites, * const *subsuite;
> @@ -42,6 +60,8 @@ int kunit_run_all_tests(void)
>  		}
>  	}
>  
> +	kunit_handle_shutdown();
> +
>  	if (has_test_failed)
>  		return -EFAULT;
>  
> diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py
> index cc5d844ecca13..43314aa537d30 100644
> --- a/tools/testing/kunit/kunit_kernel.py
> +++ b/tools/testing/kunit/kunit_kernel.py
> @@ -141,7 +141,7 @@ class LinuxSourceTree(object):
>  		return True
>  
>  	def run_kernel(self, args=[], timeout=None, build_dir=''):
> -		args.extend(['mem=256M'])
> +		args.extend(['mem=256M', 'kunit_shutdown=halt'])
>  		process = self._ops.linux_bin(args, timeout, build_dir)
>  		with open(os.path.join(build_dir, 'test.log'), 'w') as f:
>  			for line in process.stdout:
> diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
> index 78b3bdd03b1e4..633811dd9bce8 100644
> --- a/tools/testing/kunit/kunit_parser.py
> +++ b/tools/testing/kunit/kunit_parser.py
> @@ -48,7 +48,7 @@ class TestStatus(Enum):
>  	FAILURE_TO_PARSE_TESTS = auto()
>  
>  kunit_start_re = re.compile(r'^TAP version [0-9]+$')
> -kunit_end_re = re.compile('List of all partitions:')
> +kunit_end_re = re.compile(r'reboot: System halted')
>  
>  def isolate_kunit_output(kernel_output):
>  	started = False
>
Frank Rowand Feb. 4, 2020, 11:05 p.m. UTC | #2 
On 2/4/20 5:05 PM, Frank Rowand wrote:
> On 1/30/20 5:08 PM, Brendan Higgins wrote:
>> From: David Gow <davidgow@google.com>
>>
>> Add a new kernel command-line option, 'kunit_shutdown', which allows the
>> user to specify that the kernel poweroff, halt, or reboot after
>> completing all KUnit tests; this is very handy for running KUnit tests
>> on UML or a VM so that the UML/VM process exits cleanly immediately
>> after running all tests without needing a special initramfs.
> 
> kunit_shutdown needs to be added to Documentation/admin-guide/kernel-parameters.txt

Oops, patch 7/7 does exactly that.

-Frank

> 
> -Frank
> 
>>
>> Signed-off-by: David Gow <davidgow@google.com>
>> Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
>> Reviewed-by: Stephen Boyd <sboyd@kernel.org>
>> ---
>>  lib/kunit/executor.c                | 20 ++++++++++++++++++++
>>  tools/testing/kunit/kunit_kernel.py |  2 +-
>>  tools/testing/kunit/kunit_parser.py |  2 +-
>>  3 files changed, 22 insertions(+), 2 deletions(-)
>>
>> diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
>> index 7fd16feff157e..a93821116ccec 100644
>> --- a/lib/kunit/executor.c
>> +++ b/lib/kunit/executor.c
>> @@ -1,5 +1,6 @@
>>  // SPDX-License-Identifier: GPL-2.0
>>  
>> +#include <linux/reboot.h>
>>  #include <kunit/test.h>
>>  
>>  /*
>> @@ -11,6 +12,23 @@ extern struct kunit_suite * const * const __kunit_suites_end[];
>>  
>>  #if IS_BUILTIN(CONFIG_KUNIT)
>>  
>> +static char *kunit_shutdown;
>> +core_param(kunit_shutdown, kunit_shutdown, charp, 0644);
>> +
>> +static void kunit_handle_shutdown(void)
>> +{
>> +	if (!kunit_shutdown)
>> +		return;
>> +
>> +	if (!strcmp(kunit_shutdown, "poweroff"))
>> +		kernel_power_off();
>> +	else if (!strcmp(kunit_shutdown, "halt"))
>> +		kernel_halt();
>> +	else if (!strcmp(kunit_shutdown, "reboot"))
>> +		kernel_restart(NULL);
>> +
>> +}
>> +
>>  static void kunit_print_tap_header(void)
>>  {
>>  	struct kunit_suite * const * const *suites, * const *subsuite;
>> @@ -42,6 +60,8 @@ int kunit_run_all_tests(void)
>>  		}
>>  	}
>>  
>> +	kunit_handle_shutdown();
>> +
>>  	if (has_test_failed)
>>  		return -EFAULT;
>>  
>> diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py
>> index cc5d844ecca13..43314aa537d30 100644
>> --- a/tools/testing/kunit/kunit_kernel.py
>> +++ b/tools/testing/kunit/kunit_kernel.py
>> @@ -141,7 +141,7 @@ class LinuxSourceTree(object):
>>  		return True
>>  
>>  	def run_kernel(self, args=[], timeout=None, build_dir=''):
>> -		args.extend(['mem=256M'])
>> +		args.extend(['mem=256M', 'kunit_shutdown=halt'])
>>  		process = self._ops.linux_bin(args, timeout, build_dir)
>>  		with open(os.path.join(build_dir, 'test.log'), 'w') as f:
>>  			for line in process.stdout:
>> diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
>> index 78b3bdd03b1e4..633811dd9bce8 100644
>> --- a/tools/testing/kunit/kunit_parser.py
>> +++ b/tools/testing/kunit/kunit_parser.py
>> @@ -48,7 +48,7 @@ class TestStatus(Enum):
>>  	FAILURE_TO_PARSE_TESTS = auto()
>>  
>>  kunit_start_re = re.compile(r'^TAP version [0-9]+$')
>> -kunit_end_re = re.compile('List of all partitions:')
>> +kunit_end_re = re.compile(r'reboot: System halted')
>>  
>>  def isolate_kunit_output(kernel_output):
>>  	started = False
>>
> 
>
diff mbox series

Patch

diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
index 7fd16feff157e..a93821116ccec 100644
--- a/lib/kunit/executor.c
+++ b/lib/kunit/executor.c
@@ -1,5 +1,6 @@ 
 // SPDX-License-Identifier: GPL-2.0
 
+#include <linux/reboot.h>
 #include <kunit/test.h>
 
 /*
@@ -11,6 +12,23 @@  extern struct kunit_suite * const * const __kunit_suites_end[];
 
 #if IS_BUILTIN(CONFIG_KUNIT)
 
+static char *kunit_shutdown;
+core_param(kunit_shutdown, kunit_shutdown, charp, 0644);
+
+static void kunit_handle_shutdown(void)
+{
+	if (!kunit_shutdown)
+		return;
+
+	if (!strcmp(kunit_shutdown, "poweroff"))
+		kernel_power_off();
+	else if (!strcmp(kunit_shutdown, "halt"))
+		kernel_halt();
+	else if (!strcmp(kunit_shutdown, "reboot"))
+		kernel_restart(NULL);
+
+}
+
 static void kunit_print_tap_header(void)
 {
 	struct kunit_suite * const * const *suites, * const *subsuite;
@@ -42,6 +60,8 @@  int kunit_run_all_tests(void)
 		}
 	}
 
+	kunit_handle_shutdown();
+
 	if (has_test_failed)
 		return -EFAULT;
 
diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py
index cc5d844ecca13..43314aa537d30 100644
--- a/tools/testing/kunit/kunit_kernel.py
+++ b/tools/testing/kunit/kunit_kernel.py
@@ -141,7 +141,7 @@  class LinuxSourceTree(object):
 		return True
 
 	def run_kernel(self, args=[], timeout=None, build_dir=''):
-		args.extend(['mem=256M'])
+		args.extend(['mem=256M', 'kunit_shutdown=halt'])
 		process = self._ops.linux_bin(args, timeout, build_dir)
 		with open(os.path.join(build_dir, 'test.log'), 'w') as f:
 			for line in process.stdout:
diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
index 78b3bdd03b1e4..633811dd9bce8 100644
--- a/tools/testing/kunit/kunit_parser.py
+++ b/tools/testing/kunit/kunit_parser.py
@@ -48,7 +48,7 @@  class TestStatus(Enum):
 	FAILURE_TO_PARSE_TESTS = auto()
 
 kunit_start_re = re.compile(r'^TAP version [0-9]+$')
-kunit_end_re = re.compile('List of all partitions:')
+kunit_end_re = re.compile(r'reboot: System halted')
 
 def isolate_kunit_output(kernel_output):
 	started = False