On Fri, Nov 14, 2014 at 02:27:44PM +0800, Li, ZhenHua wrote: > I am working following your directions: > > 1. If the VT-d driver finds the IOMMU enabled, it reuses its root entry > table, and do NOT disable-enable iommu. Other data will be copied. > > 2. When a device driver issues the first dma_map command for a > device, we assign a new and empty page-table, thus removing all > mappings from the old kernel for the device. > > Please let me know if I get something wrong. Yes, this sounds right. Happily waiting for patches :) Joerg -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
