Messages in this thread Patch in this message | | | From | Stefano Stabellini <> | Subject | [PATCH 22/24] ARM: enable earlyprintk=xen | Date | Thu, 26 Jul 2012 16:34:04 +0100 |
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From: Ian Campbell <ian.campbell@citrix.com>
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 <ian.campbell@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> --- 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
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