Hi Carl-Daniel, Yep, the GART is one way to go. On the other hand, there are PCI-Express systems that do not have a GART. The whole thing is a bit of a mess, which is why I didn't expand on it.
Cheers, Arvind On Fri, 12 Jan 2007, Carl-Daniel Hailfinger wrote: > Hi Arvind, > > Arvind Seshadri wrote: > > Having an IOMMU is not necessary since our goal is only to prevent DMA > > write to a region of memory. We have come up with techniques that can > > prevent DMA writes on legacy systems without an IOMMU. Also, Pioneer is > > That sounds interesting. Are you using the GART present in most current > systems? > > > not LinuxBIOS-specific. It can be incorporated into any SMM code. > > Thanks for clarifying that. > > Regards, > Carl-Daniel > -- > http://www.hailfinger.org/ > > -- linuxbios mailing list [email protected] http://www.openbios.org/mailman/listinfo/linuxbios
