[PATCH] x86_64: Fix off by one in IOMMU check

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Fix off by one when checking if the machine has enougn memory to need IOMMU
This caused the IOMMUs to be needlessly enabled for mem=4G

Based on a patch from Jon Mason

Signed-off-by: jdmason@us.ibm.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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Andi Kleen 2006-01-11 22:44:27 +01:00 • committed by Linus Torvalds

parent d25bf7e5fe

commit ca8642f606

4 changed files with 6 additions and 4 deletions

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3

arch/x86_64/kernel/aperture.c

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3

arch/x86_64/kernel/io_apic.c

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2

arch/x86_64/kernel/pci-gart.c

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2

arch/x86_64/mm/init.c

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