All of lore.kernel.org
 help / color / mirror / Atom feed
* [LTP] [PATCH] lib: tst_virt: Add option to override virt detection
@ 2021-09-14 15:02 ` Cyril Hrubis
  0 siblings, 0 replies; 6+ messages in thread
From: Cyril Hrubis @ 2021-09-14 15:02 UTC (permalink / raw)
  To: ltp

There seems to be cases where systemd-detect-virt does not detect
virtualization correctly. To work around this bugs this commit adds a
a support for LTP_VIRT_OVERRIDE environment variable that if set is used
instead of the output from the systemd-detect-virt command.

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
---
 lib/tst_virt.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/tst_virt.c b/lib/tst_virt.c
index d23d7f564..0fda20a17 100644
--- a/lib/tst_virt.c
+++ b/lib/tst_virt.c
@@ -100,8 +100,18 @@ static int is_ibmz(int virt_type)
 static int try_systemd_detect_virt(void)
 {
 	FILE *f;
-	char virt_type[64];
+	char virt_buf[64];
 	int ret;
+	char *virt_type = getenv("LTP_VIRT_OVERRIDE");
+
+	if (virt_type) {
+		if (!strcmp("", virt_type))
+			return 0;
+
+		goto cmp;
+	}
+
+	virt_type = virt_buf;
 
 	/* See tst_cmd.c */
 	void *old_handler = signal(SIGCHLD, SIG_DFL);
@@ -129,6 +139,7 @@ static int try_systemd_detect_virt(void)
 	if (ret)
 		return 0;
 
+cmp:
 	if (!strncmp("kvm", virt_type, 3))
 		return VIRT_KVM;
 
-- 
2.26.3


^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2021-09-15  8:14 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-09-14 15:02 [LTP] [PATCH] lib: tst_virt: Add option to override virt detection Cyril Hrubis
2021-09-14 15:02 ` Cyril Hrubis
2021-09-15  4:13 ` Li Wang
2021-09-15  4:13   ` Li Wang
2021-09-15  8:14   ` Cyril Hrubis
2021-09-15  8:14     ` Cyril Hrubis

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.