tjh.dev / kernel
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x86: fix ldt limit for 64 bit

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>

authored by Michael Karcher and committed by Ingo Molnar 5ac37f87 a361ee5c

options
unified split
Changed files
+2 -2
include
asm-x86
desc.h
+2 -2
include/asm-x86/desc.h
··· 192 192 unsigned cpu = smp_processor_id(); 193 193 ldt_desc ldt; 194 194 195 - set_tssldt_descriptor(&ldt, (unsigned long)addr, 196 - DESC_LDT, entries * sizeof(ldt) - 1); 195 + set_tssldt_descriptor(&ldt, (unsigned long)addr, DESC_LDT, 196 + entries * LDT_ENTRY_SIZE - 1); 197 197 write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, 198 198 &ldt, DESC_LDT); 199 199 asm volatile("lldt %w0"::"q" (GDT_ENTRY_LDT*8));