On Thu, 11 Jan 2018, Pavel Tatashin wrote: > The page table order must be increased for EFI table in order to avoid a > bug where NMI tries to change the page table to kernel page table, while > efi page table is active. > > For more disccussion about this bug, see this thread: > http://lkml.iu.edu/hypermail/linux/kernel/1801.1/00951.html > > Signed-off-by: Pavel Tatashin <[email protected]> > Reviewed-by: Steven Sistare <[email protected]>
Acked-by: Jiri Kosina <[email protected]> We are carrying similar patch in our 4.4 codestream as well. Please note that this is needed only for those trees that have 67a9108ed43 ("x86/efi: Build our own page table structures") backported to it. That used to be in some -stable releases, and some had it reverted, so please check that. -- Jiri Kosina SUSE Labs
