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| author | Jeremy Fitzhardinge <jeremy@xensource.com> | 2007-07-17 18:37:06 -0700 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy@goop.org> | 2007-07-18 08:47:44 -0700 |
| commit | b536b4b9623084d86f2b1f19cb44a2d6d74f00bf (patch) | |
| tree | 86c1981309dbd8b9bf120d4ddba50abd105af89a /arch/x86_64/kernel/early_printk.c | |
| parent | 8b84ad942b534f8faeb34b68f0f7277ea375fed0 (diff) | |
| download | blackbird-op-linux-b536b4b9623084d86f2b1f19cb44a2d6d74f00bf.tar.gz blackbird-op-linux-b536b4b9623084d86f2b1f19cb44a2d6d74f00bf.zip | |
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>
Diffstat (limited to 'arch/x86_64/kernel/early_printk.c')
| -rw-r--r-- | arch/x86_64/kernel/early_printk.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c index 296d2b0c5d88..fd9aff3f3890 100644 --- a/arch/x86_64/kernel/early_printk.c +++ b/arch/x86_64/kernel/early_printk.c @@ -6,6 +6,7 @@ #include <asm/io.h> #include <asm/processor.h> #include <asm/fcntl.h> +#include <xen/hvc-console.h> /* Simple VGA output */ @@ -242,6 +243,10 @@ static int __init setup_early_printk(char *buf) simnow_init(buf + 6); early_console = &simnow_console; keep_early = 1; +#ifdef CONFIG_HVC_XEN + } else if (!strncmp(buf, "xen", 3)) { + early_console = &xenboot_console; +#endif } if (keep_early) |
