[Xen-changelog] The patch allows x86_64 SMP Xen/XenLinux (dom0) to run on relatively big

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 071412a64fb9d863f5c0998bd8fda17faeee030b
# Parent  513acbeac4205209ce48dd39ec6ca06121156be8
The patch allows x86_64 SMP Xen/XenLinux (dom0) to run on relatively big
SMP machines.
I tested on an 8-way machine with 8GB. It looks stable as far as I did
sanity checks, such as an infinite loop of "make -j32"; it's very fast!.

Signed-off-by: Jun Nakajima <jun.nakajima@xxxxxxxxx>

diff -r 513acbeac420 -r 071412a64fb9 
linux-2.6-xen-sparse/arch/xen/x86_64/kernel/setup64.c
--- a/linux-2.6-xen-sparse/arch/xen/x86_64/kernel/setup64.c     Fri Aug 19 
09:03:17 2005
+++ b/linux-2.6-xen-sparse/arch/xen/x86_64/kernel/setup64.c     Fri Aug 19 
09:05:04 2005
@@ -280,19 +280,16 @@
        if (cpu) {
                memcpy(cpu_gdt_table[cpu], cpu_gdt_table[0], GDT_SIZE);
        }       
-#endif
 
        cpu_gdt_descr[cpu].size = GDT_SIZE;
        cpu_gdt_descr[cpu].address = (unsigned long)cpu_gdt_table[cpu];
 
-        cpu_gdt_init(&cpu_gdt_descr[cpu]);
-
-#ifndef CONFIG_XEN 
        memcpy(me->thread.tls_array, cpu_gdt_table[cpu], GDT_ENTRY_TLS_ENTRIES 
* 8);
-
 #else
        memcpy(me->thread.tls_array, &get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN],
            GDT_ENTRY_TLS_ENTRIES * 8);
+
+    cpu_gdt_init(&cpu_gdt_descr[cpu]);
 #endif
        
        /*

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