On Mon, Jan 15, 2018 at 11:44:14AM -0500, 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 pasha.tatashin@oracle.com Reviewed-by: Steven Sistare steven.sistare@oracle.com Acked-by: Jiri Kosina jkosina@suse.cz
arch/x86/include/asm/pgalloc.h | 11 +++++++++++ arch/x86/mm/pgtable.c | 7 ------- arch/x86/platform/efi/efi_64.c | 2 +- 3 files changed, 12 insertions(+), 8 deletions(-)
Changelog: v1 - v2: Fixed compiling warning
Many thanks for this, now queued up.
greg k-h