xen: use the hvc console infrastructure for Xen console
Implement a Xen back-end for hvc console.
* * *
Add early printk support via hvc console, enable using
"earlyprintk=xen" on the kernel command line.
From: Gerd Hoffmann <kraxel@suse.de>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/i386/xen/events.c b/arch/i386/xen/events.c
index 4103b8b..8904acc 100644
--- a/arch/i386/xen/events.c
+++ b/arch/i386/xen/events.c
@@ -244,7 +244,7 @@
return irq;
}
-static int bind_evtchn_to_irq(unsigned int evtchn)
+int bind_evtchn_to_irq(unsigned int evtchn)
{
int irq;
@@ -269,6 +269,7 @@
return irq;
}
+EXPORT_SYMBOL_GPL(bind_evtchn_to_irq);
static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
{