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由 FUJITA Tomonori 提交于
iommu=soft boot option forces the kernel to use swiotlb. ( This has the side-effect of enabling the swiotlb over the GART if this boot option is provided. This is the desired behavior of the swiotlb boot option and works like that for all other hw-IOMMU drivers. ) Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: yinghai@kernel.org LKML-Reference: <20091125084611O.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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