Jan Beulich
2007-Nov-22 12:42 UTC
[Xen-devel] [PATCH] x86: make set_task_gate() x86-32-only
.. since x86-64 doesn''t have task gates.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Index: 2007-11-13/xen/arch/x86/traps.c
==================================================================---
2007-11-13.orig/xen/arch/x86/traps.c 2007-11-12 08:47:42.000000000 +0100
+++ 2007-11-13/xen/arch/x86/traps.c 2007-11-13 15:30:41.000000000 +0100
@@ -2581,12 +2581,6 @@ void set_system_gate(unsigned int n, voi
_set_gate(idt_table+n,14,3,addr);
}
-void set_task_gate(unsigned int n, unsigned int sel)
-{
- idt_table[n].a = sel << 16;
- idt_table[n].b = 0x8500;
-}
-
void set_tss_desc(unsigned int n, void *addr)
{
_set_tssldt_desc(
Index: 2007-11-13/xen/arch/x86/x86_32/traps.c
==================================================================---
2007-11-13.orig/xen/arch/x86/x86_32/traps.c 2007-11-02 17:25:57.000000000 +0100
+++ 2007-11-13/xen/arch/x86/x86_32/traps.c 2007-11-13 15:31:07.000000000 +0100
@@ -258,6 +258,12 @@ unsigned long do_iret(void)
return 0;
}
+static void set_task_gate(unsigned int n, unsigned int sel)
+{
+ idt_table[n].a = sel << 16;
+ idt_table[n].b = 0x8500;
+}
+
void __devinit subarch_percpu_traps_init(void)
{
struct tss_struct *tss = &doublefault_tss;
Index: 2007-11-13/xen/include/asm-x86/desc.h
==================================================================---
2007-11-13.orig/xen/include/asm-x86/desc.h 2007-11-13 15:29:28.000000000 +0100
+++ 2007-11-13/xen/include/asm-x86/desc.h 2007-11-13 15:31:27.000000000 +0100
@@ -205,7 +205,6 @@ extern struct desc_struct compat_gdt_tab
extern void set_intr_gate(unsigned int irq, void * addr);
extern void set_system_gate(unsigned int n, void *addr);
-extern void set_task_gate(unsigned int n, unsigned int sel);
extern void set_tss_desc(unsigned int n, void *addr);
#endif /* !__ASSEMBLY__ */
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel