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[PATCH] x86_64: fix tss limit 

Fix the x86_64 TSS limit in TSS descriptor.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Siddha, Suresh B 2005-11-13 16:06:21 -08:00 committed by Linus Torvalds
parent 4ba529a8a3
commit 47936357c0
1 changed files with 10 additions and 3 deletions
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13
include/asm-x86_64/desc.h
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@ -129,9 +129,16 @@ static inline void set_tssldt_descriptor(void *ptr, unsigned long tss, unsigned
static inline void set_tss_desc(unsigned cpu, void *addr) static inline void set_tss_desc(unsigned cpu, void *addr)
{ {
set_tssldt_descriptor(&cpu_gdt_table[cpu][GDT_ENTRY_TSS], (unsigned long)addr, /*
DESC_TSS, * sizeof(unsigned long) coming from an extra "long" at the end
sizeof(struct tss_struct) - 1); * of the iobitmap. See tss_struct definition in processor.h
*
* -1? seg base+limit should be pointing to the address of the
* last valid byte
*/
set_tssldt_descriptor(&cpu_gdt_table[cpu][GDT_ENTRY_TSS],
(unsigned long)addr, DESC_TSS,
IO_BITMAP_OFFSET + IO_BITMAP_BYTES + sizeof(unsigned long) - 1);
} }
static inline void set_ldt_desc(unsigned cpu, void *addr, int size) static inline void set_ldt_desc(unsigned cpu, void *addr, int size)