Commit 2817716a authored Sep 26, 2006 by Jeremy Fitzhardinge Committed by Andi Kleen Sep 26, 2006

[PATCH] i386: Fix pack_descriptor()



Fix pack_descriptor:
 1. flags are bits 20-23 in the high word
 2. limit's 4 msb are bits 16-19 in the high word

These haven't mattered so far, because all users have had small limits
and a flags setting of 0.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>

===================================================================

parent de09bddb

include/asm-i386/desc.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -46,7 +46,7 @@ static inline void pack_descriptor(__u32 a, __u32 b,
		{
		*a = ((base & 0xffff) << 16) \| (limit & 0xffff);
		*b = (base & 0xff000000) \| ((base & 0xff0000) >> 16) \|
		((type & 0xff) << 8) \| ((flags & 0xf) << 12);
		(limit & 0x000f0000) \| ((type & 0xff) << 8) \| ((flags & 0xf) << 20);
		}

		static inline void pack_gate(__u32 a, __u32 b,

Original line number	Diff line number	Diff line
		@@ -46,7 +46,7 @@ static inline void pack_descriptor(__u32 a, __u32 b,
		{
		*a = ((base & 0xffff) << 16) \| (limit & 0xffff);
		*b = (base & 0xff000000) \| ((base & 0xff0000) >> 16) \|
		((type & 0xff) << 8) \| ((flags & 0xf) << 12);
		(limit & 0x000f0000) \| ((type & 0xff) << 8) \| ((flags & 0xf) << 20);
		}

		static inline void pack_gate(__u32 a, __u32 b,

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