x86: use descriptor's functions instead of inline assembly

This patch provides a new set of functions for managing the descriptor
tables that can be used instead of putting the raw assembly in .c files.

Remodeling of store_tr() suggested by Frederik Deweerdt.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kernel/setup64.c b/arch/x86/kernel/setup64.c
index e11886e8d8ca..3558ac78c926 100644
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -230,8 +230,8 @@ void __cpuinit cpu_init (void)
                 memcpy(cpu_gdt(cpu), cpu_gdt_table, GDT_SIZE);
 
         cpu_gdt_descr[cpu].size = GDT_SIZE;
-        asm volatile("lgdt %0" :: "m" (cpu_gdt_descr[cpu]));
-        asm volatile("lidt %0" :: "m" (idt_descr));
+        load_gdt((const struct desc_ptr *)&cpu_gdt_descr[cpu]);
+        load_idt((const struct desc_ptr *)&idt_descr);
 
         memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8);
         syscall_init();