On Fri, Dec 21, 2012 at 6:42 PM, Eric W. Biederman <ebied...@xmission.com> wrote: > Konrad Rzeszutek Wilk <konrad.w...@oracle.com> writes: > >> On Mon, Dec 17, 2012 at 11:15:56PM -0800, Yinghai Lu wrote: >>> So use could disable swiotlb from command line, even swiotlb support >>> is compiled in. Just like we have intel_iommu=on and intel_iommu=off. >> >> You really need to spell out why this is useful. > > YH why can't we safely autodetect that the swiotlb is unusable when > there is no memory below 4G free?
good point. will give it try. Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
