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Commit 47936357 authored by Siddha, Suresh B's avatar Siddha, Suresh B Committed by Linus Torvalds
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[PATCH] x86_64: fix tss limit 



Fix the x86_64 TSS limit in TSS descriptor.

Signed-off-by: default avatarSuresh Siddha <suresh.b.siddha@intel.com>
Acked-by: default avatarAndi Kleen <ak@muc.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 4ba529a8

include/asm-x86_64/desc.h

+10 −3
Original line number Diff line number Diff line
@@ -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)