[PATCH 22/24] ARM: enable earlyprintk=xen
From: Stefano Stabellini <hidden>
Date: 2012-07-26 15:56:12
Also in:
lkml, xen-devel
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
From: Ian Campbell <redacted> Currently ARM setup_early_printk does not support alternative early consoles and it always registers early_console only. This patch adds support for xenboot_console. Signed-off-by: Ian Campbell <redacted> Signed-off-by: Stefano Stabellini <redacted> --- arch/arm/kernel/early_printk.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/arch/arm/kernel/early_printk.c b/arch/arm/kernel/early_printk.c
index 85aa2b2..eecfa21 100644
--- a/arch/arm/kernel/early_printk.c
+++ b/arch/arm/kernel/early_printk.c@@ -11,6 +11,8 @@ #include <linux/kernel.h> #include <linux/console.h> #include <linux/init.h> +#include <linux/string.h> +#include <xen/hvc-console.h> extern void printch(int);
@@ -50,7 +52,14 @@ asmlinkage void early_printk(const char *fmt, ...) static int __init setup_early_printk(char *buf) { - register_console(&early_console); + if (!buf || !strncmp(buf, "serial", 6)) + register_console(&early_console); + +#ifdef CONFIG_HVC_XEN + if (!strncmp(buf, "xen", 3)) + register_console(&xenboot_console); +#endif + return 0; }
--
1.7.2.5