[PATCH 5/9] xen/x86: make "earlyprintk=xen" work for HVM/PVH DomU
From: Jan Beulich <hidden>
Date: 2021-09-07 10:10:25
xenboot_write_console() is dealing with these quite fine so I don't see why xenboot_console_setup() would return -ENOENT in this case. Adjust documentation accordingly. Signed-off-by: Jan Beulich <redacted>
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt@@ -1266,7 +1266,7 @@ The VGA and EFI output is eventually overwritten by the real console. - The xen output can only be used by Xen PV guests. + The xen option can only be used in Xen domains. The sclp output can only be used on s390. --- a/drivers/tty/hvc/hvc_xen.c +++ b/drivers/tty/hvc/hvc_xen.c
@@ -618,10 +618,8 @@ static int __init xenboot_console_setup( { static struct xencons_info xenboot; - if (xen_initial_domain()) + if (xen_initial_domain() || !xen_pv_domain()) return 0; - if (!xen_pv_domain()) - return -ENODEV; return xencons_info_pv_init(&xenboot, 0); }