[Xen-devel] [PATCH 2/2] xen: make opt_xen_console true before console initialisation

[Wei Liu <wei.liu2@xxxxxxxxxx>]

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@xxxxxxxxxx>
---
 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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