On 08/06/15 13:06, Juergen Gross wrote: > Some special pages containing interfaces to xen are being reserved > implicitly only today. The memblock_reserve() call to reserve them is > meant to reserve the p2m list supplied by xen. It is just reserving > not only the p2m list itself, but some more pages up to the start of > the xen built page tables. > > To be able to move the p2m list to another pfn range, which is needed > for support of huge RAM, this memblock_reserve() must be split up to > cover all affected reserved pages explicitly. > > The affected pages are: > - start_info page > - xenstore ring > - console ring > - shared_info page Reviewed-by: David Vrabel <david.vrabel@xxxxxxxxxx> David -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>