tree c450e793839868c23209e6fcbfb189975d9d4db6
parent 2d3a4e3666325a9709cc8ea2e88151394e8f20fc
author mark gross <mgross@linux.intel.com> 1202473118 -0800
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1202491344 -0800

intel-iommu: PMEN support

Add support for protected memory enable bits by clearing them if they are
set at startup time.  Some future boot loaders or firmware could have this
bit set after it loads the kernel, and it needs to be cleared if DMA's are
going to happen effectively.

Signed-off-by: mark gross <mgross@intel.com>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>