On 06/11/14 05:47, Juergen Gross wrote: > Early in the boot process the memory layout of a pv-domain is changed > to match the E820 map (either the host one for Dom0 or the Xen one) > regarding placement of RAM and PCI holes. This requires removing memory > pages initially located at positions not suitable for RAM and adding > them later at higher addresses where no restrictions apply. > > To be able to operate on the hypervisor supported p2m list until a > virtual mapped linear p2m list can be constructed, remapping must > be delayed until virtual memory management is initialized, as the > initial p2m list can't be extended unlimited at physical memory > initialization time due to it's fixed structure. > > A further advantage is the reduction in complexity and code volume as > we don't have to be careful regarding memory restrictions during p2m > updates.
Reviewed-by: David Vrabel <[email protected]> But I would like a second reviewed-by. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
