xen: register runstate info for boot CPU early

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>
Cc: Stable Kernel <stable@kernel.org>

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index a7b49f99a1307e33c15e49b262a0ed84a95e3ff7..79f97383cde3be99da33f092c7604876be896dab 100644 (file)
--- 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();