x86: move _set_gate and its users to a common location

This patch moves _set_gate and its users to desc.h. We can now
use common code for x86_64 and i386.

[ mingo@elte.hu: set_system_gate() fixes for nasty crashes. ]

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 1 insertions, 4 deletions

diff --git a/include/asm-x86/desc_defs.h b/include/asm-x86/desc_defs.h
index ebb64fe3a450..e33f078b3e54 100644
--- a/include/asm-x86/desc_defs.h
+++ b/include/asm-x86/desc_defs.h
@@ -36,6 +36,7 @@ enum {
         GATE_INTERRUPT = 0xE,
         GATE_TRAP = 0xF,
         GATE_CALL = 0xC,
+        GATE_TASK = 0x5,
 };
 
 // 16byte gate
@@ -55,10 +56,6 @@ struct gate_struct64 {
 enum {
         DESC_TSS = 0x9,
         DESC_LDT = 0x2,
-        DESCTYPE_TASK = 0x85,   /* present, system, DPL-0, task gate */
-        DESCTYPE_INT =  0x8e,   /* present, system, DPL-0, interrupt gate */
-        DESCTYPE_TRAP = 0x8f,   /* present, system, DPL-0, trap gate */
-        DESCTYPE_DPL3 = 0x60,   /* DPL-3 */
         DESCTYPE_S =    0x10,   /* !system */
 };