On Thu, Sep 30, 2010 at 08:43:01PM +0200, Joerg Roedel wrote: > Enabling the IOMMU device is only part of what the BIOS is supposed to > do to get the IOMMU ready for the OS. A handful of registers in the > config space of the device and the IOMMU MMIO region must also be > restored. Thats the simple part. The IOMMU device also spans two > indirect register spaces to configure the IOMMU caches. I have no idea > yet how this need to be configured. The plan is definitly to > work-around a missing IOMMU device in the IOMMU driver. But I am still > talking to some people to find out what exactly must be done, especially > with the indirect register spaces. Chapter 8 of the register setup guide seems to have something on this - I'll try saving and restoring all of the setup it performs to see if it improves things. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- 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
