From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Tue, 24 Nov 2009 17:38:25 +0000 (-0800)
Subject: xen: register runstate info for boot CPU early
X-Git-Tag: firefly_0821_release~11625^2~544
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c7092102563af5c81bd8d08582fdbe4529cbcf17;p=firefly-linux-kernel-4.4.55.git

xen: register runstate info for boot CPU early

commit 499d19b82b586aef18727b9ae1437f8f37b66e91 upstream.

printk timestamping uses sched_clock, which in turn relies on runstate
info under Xen.  So make sure we set it up before any printks can
be called.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index a7b49f99a130..79f97383cde3 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1181,6 +1181,8 @@ asmlinkage void __init xen_start_kernel(void)
 
 	xen_raw_console_write("about to get started...\n");
 
+	xen_setup_runstate_info(0);
+
 	/* Start the world */
 #ifdef CONFIG_X86_32
 	i386_start_kernel();