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xen/x86: allow "earlyprintk=xen" to work for PV Dom0 

With preferred consoles "tty" and "hvc" announced as preferred,
registering "xenboot" early won't result in use of the console: It also
needs to be registered as preferred. Generalize this from being DomU-
only so far.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/d4a34540-a476-df2c-bca6-732d0d58c5f0@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Jan Beulich 2021-09-30 14:18:12 +02:00 committed by Juergen Gross
parent adf330a7cd
commit 8e24d9bfc4
1 changed files with 1 additions and 1 deletions
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2
arch/x86/xen/enlighten_pv.c
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@ -1348,7 +1348,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
boot_params.hdr.hardware_subarch = X86_SUBARCH_XEN;
if (!xen_initial_domain()) {
add_preferred_console("xenboot", 0, NULL);
if (pci_xen)
x86_init.pci.arch_init = pci_xen_init;
x86_platform.set_legacy_features =
@ -1393,6 +1392,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
#endif
}
add_preferred_console("xenboot", 0, NULL);
if (!boot_params.screen_info.orig_video_isVGA)
add_preferred_console("tty", 0, NULL);
add_preferred_console("hvc", 0, NULL);