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x86: fix ldt limit for 64 bit

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Fix size of LDT entries. On x86-64, ldt_desc is a double-sized descriptor.

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Michael Karcher 2008-07-11 18:04:46 +02:00 committed by Ingo Molnar
parent a361ee5cb8
commit 5ac37f87ff
1 changed files with 2 additions and 2 deletions
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4
include/asm-x86/desc.h
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@ -192,8 +192,8 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
unsigned cpu = smp_processor_id();
ldt_desc ldt;
set_tssldt_descriptor(&ldt, (unsigned long)addr,
DESC_LDT, entries * sizeof(ldt) - 1);
set_tssldt_descriptor(&ldt, (unsigned long)addr, DESC_LDT,
entries * LDT_ENTRY_SIZE - 1);
write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT,
&ldt, DESC_LDT);
asm volatile("lldt %w0"::"q" (GDT_ENTRY_LDT*8));