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[PATCH 4/9] xen/x86: allow "earlyprintk=xen" to work for PV Dom0
- To: Juergen Gross <jgross@xxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 7 Sep 2021 12:09:37 +0200
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, lkml <linux-kernel@xxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 07 Sep 2021 10:09:44 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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@xxxxxxxx>
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1340,7 +1340,6 @@ asmlinkage __visible void __init xen_sta
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;
} else {
@@ -1383,6 +1382,7 @@ asmlinkage __visible void __init xen_sta
#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);
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