[Xen-devel] [PATCH]smpboot.c: Don't boot cpu if apicid is BAD_APICID

["Natasha Jarymowycz" <natasha@xxxxxxxxxx>]

Various mach-specific platforms return BAD_APICID from
cpu_present_to_apicid.  This check is needed or do_boot_cpu
will be called with an invalid APICID.

Signed-off-by: Natasha Jarymowycz <natasha@xxxxxxxxxx>

--- xen-unstable/xen/arch/x86/smpboot.c 2005-05-15 22:15:30.000000000 -0500
+++ xen-unstable.patched/xen/arch/x86/smpboot.c 2005-05-17  
12:17:32.000000000 -0500
@@ -871,7 +871,7 @@
         /*
          * Don't even attempt to start the boot CPU!
          */
-        if (apicid == boot_cpu_apicid)
+        if ((apicid == boot_cpu_apicid) || (apicid == BAD_APICID))
             continue;

         /*


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