File 556eabf7-x86-apic-Disable-the-LAPIC-later-in-smp_send_stop.patch of Package xen.950

# Commit d639bdd9bbed8d003ad9be0b13535aca636b9d18
# Date 2015-06-03 09:25:43 +0200
# Author Andrew Cooper <andrew.cooper3@citrix.com>
# Committer Jan Beulich <jbeulich@suse.com>
x86/apic: Disable the LAPIC later in smp_send_stop()

__stop_this_cpu() may reset the LAPIC mode back from x2apic to xapic, but will
leave x2apic_enabled alone.  This may cause disconnect_bsp_APIC() in
disable_IO_APIC() to suffer a #GP fault.

Disabling the LAPIC can safely be deferred to being the last action.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>

--- a/xen/arch/x86/smp.c
+++ b/xen/arch/x86/smp.c
@@ -321,9 +321,9 @@ void smp_send_stop(void)
         mdelay(1);
 
     local_irq_disable();
-    __stop_this_cpu();
     disable_IO_APIC();
     hpet_disable();
+    __stop_this_cpu();
     local_irq_enable();
 }