* [LTP] [PATCH] lib: tst_virt: Add option to override virt detection
@ 2021-09-14 15:02 ` Cyril Hrubis
2021-09-15 4:13 ` Li Wang
0 siblings, 1 reply; 3+ 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
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [LTP] [PATCH] lib: tst_virt: Add option to override virt detection
@ 2021-09-15 4:13 ` Li Wang
2021-09-15 8:14 ` Cyril Hrubis
0 siblings, 1 reply; 3+ messages in thread
From: Li Wang @ 2021-09-15 4:13 UTC (permalink / raw)
To: Cyril Hrubis; +Cc: LTP List
[-- Attachment #1.1: Type: text/plain, Size: 465 bytes --]
On Tue, Sep 14, 2021 at 11:02 PM Cyril Hrubis <chrubis@suse.cz> wrote:
> 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>
>
Reviewed-by: Li Wang <liwang@redhat.com>
--
Regards,
Li Wang
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--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [LTP] [PATCH] lib: tst_virt: Add option to override virt detection
@ 2021-09-15 8:14 ` Cyril Hrubis
0 siblings, 0 replies; 3+ messages in thread
From: Cyril Hrubis @ 2021-09-15 8:14 UTC (permalink / raw)
To: Li Wang; +Cc: LTP List
Hi!
> > 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>
> >
>
> Reviewed-by: Li Wang <liwang@redhat.com>
I've added a description for the variable into doc/user-guide.txt and
pushed, thanks.
--
Cyril Hrubis
chrubis@suse.cz
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-09-15 8:14 UTC | newest]
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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
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