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[PATCH] x86_64: fix tss limit

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Fix the x86_64 TSS limit in TSS descriptor.

Signed-off-by: Suresh Siddha <[email protected]>
Acked-by: Andi Kleen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Siddha, Suresh B 2005-11-13 16:06:21 -08:00 • committed by Linus Torvalds
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)
{
set_tssldt_descriptor(&cpu_gdt_table[cpu][GDT_ENTRY_TSS], (unsigned long)addr,
DESC_TSS,
sizeof(struct tss_struct) - 1);
/*
* sizeof(unsigned long) coming from an extra "long" at the end
* 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)