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[Xen-devel] [PATCH] fix-multiple-vmxon.patch

To: Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH] fix-multiple-vmxon.patch
From: Arun Sharma <arun.sharma@xxxxxxxxx>
Date: Wed, 20 Apr 2005 17:01:06 -0700
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
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__vmxon() is called twice for the boot cpu, because identify_cpu() is called
twice. This patch ensures that identify_cpu() and hence __vmxon() is called
exactly once for the boot CPU on SMP.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
Signed-off-by: Arun Sharma <arun.sharma@xxxxxxxxx>

diff -puN arch/x86/smpboot.c~fix-multiple-vmxon arch/x86/smpboot.c
--- xen/arch/x86/smpboot.c~fix-multiple-vmxon   2005-04-11 08:52:26.293486000 
-0700
+++ xen-askeshav/arch/x86/smpboot.c     2005-04-11 08:58:58.513486000 -0700
@@ -114,7 +114,8 @@ void __init smp_alloc_memory(void)
 void __init smp_store_cpu_info(int id)
 {
     cpu_data[id] = boot_cpu_data;
-    identify_cpu(&cpu_data[id]);
+    if (id != 0)
+        identify_cpu(&cpu_data[id]);
 }
 
 /*
_

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