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.l...@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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