From: Wei Liu <wei.liu2@citrix.com>
To: xen-devel@lists.xenproject.org
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Wei Liu <wei.liu2@citrix.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
Julien Grall <julien.grall@arm.com>,
Jan Beulich <jbeulich@suse.com>
Subject: [PATCH 2/2] xen: make opt_xen_console true before console initialisation
Date: Fri, 28 Sep 2018 09:24:37 +0100 [thread overview]
Message-ID: <20180928082437.15140-3-wei.liu2@citrix.com> (raw)
In-Reply-To: <20180928082437.15140-1-wei.liu2@citrix.com>
This helps capture issues before console is initialised. The impact is
minimal because it only affects Xen running in as a guest.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
---
xen/drivers/char/console.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c
index e48039dd82..bbec98304e 100644
--- a/xen/drivers/char/console.c
+++ b/xen/drivers/char/console.c
@@ -91,7 +91,8 @@ static uint32_t conringc, conringp;
static int __read_mostly sercon_handle = -1;
#ifdef CONFIG_X86
-static bool __read_mostly opt_console_xen; /* console=xen */
+/* Set to true at start of day to catch early boot issues */
+static bool __read_mostly opt_console_xen = true; /* console=xen */
#endif
static DEFINE_SPINLOCK(console_lock);
@@ -821,6 +822,10 @@ void __init console_init_preirq(void)
serial_init_preirq();
+#ifdef CONFIG_X86
+ opt_console_xen = false;
+#endif
+
/* Where should console output go? */
for ( p = opt_console; p != NULL; p = strchr(p, ',') )
{
--
2.11.0
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next prev parent reply other threads:[~2018-09-28 8:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-28 8:24 [PATCH 0/2] Minor improvement to early boot code Wei Liu
2018-09-28 8:24 ` [PATCH 1/2] x86: make sure module array is large enough in pvh-boot.c Wei Liu
2018-09-28 15:06 ` Jan Beulich
2018-09-28 15:13 ` Wei Liu
2018-09-28 8:24 ` Wei Liu [this message]
2018-09-28 15:08 ` [PATCH 2/2] xen: make opt_xen_console true before console initialisation Jan Beulich
2018-09-28 15:12 ` Wei Liu
2018-09-28 15:13 ` Andrew Cooper
2018-09-28 15:16 ` Wei Liu
2018-09-28 15:19 ` Jan Beulich
2018-09-28 15:23 ` Wei Liu
2018-09-28 15:53 ` Wei Liu
2018-09-28 16:05 ` Jan Beulich
2018-09-28 16:19 ` Wei Liu
2018-09-28 16:55 ` Wei Liu
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