Jeremy Fitzhardinge
2008-May-24 08:19 UTC
[Xen-devel] [PATCH] xen: make earlyprintk=xen work again
For some perverse reason, if you call add_preferred_console() it prevents
setup_early_printk() from successfully enabling the boot console -
unless you make it a preferred console too...
Also, make xenboot console output distinct from normal console output,
since it gets repeated when the console handover happens, and the
duplicated output is confusing without disambiguation.
[ Applies to end of xen pvfb series ]
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
---
arch/x86/xen/enlighten.c | 1 +
drivers/char/hvc_xen.c | 1 +
2 files changed, 2 insertions(+)
==================================================================---
a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1270,6 +1270,7 @@ asmlinkage void __init xen_start_kernel(
boot_params.hdr.ramdisk_size = xen_start_info->mod_len;
if (!is_initial_xendomain()) {
+ add_preferred_console("xenboot", 0, NULL);
add_preferred_console("tty", 0, NULL);
add_preferred_console("hvc", 0, NULL);
}
==================================================================---
a/drivers/char/hvc_xen.c
+++ b/drivers/char/hvc_xen.c
@@ -172,6 +172,7 @@ static void xenboot_write_console(struct
raw_console_write(string, len);
+ write_console(0, "(early) ", 8);
while (off < len && NULL != (pos = strchr(string+off,
''\n''))) {
linelen = pos-string+off;
if (off + linelen > len)
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel