On Wed, 27 Jan, at 10:34:56AM, Sai Praneeth Prakhya wrote: > From: Sai Praneeth <sai.praneeth.prakhya@xxxxxxxxx> > > Since EFI page tables can be treated as kernel page tables they should > be global. All the other page mapping functions in pageattr.c set the > _PAGE_GLOBAL bit and we want to avoid inconsistencies when we map a page > in the EFI code paths, for example when that page is split in > __split_large_page(), etc. It also makes it easier to validate that the > EFI region mappings have the correct attributes because there are fewer > differences compared with regular kernel mappings. > > Cc: Ricardo Neri <ricardo.neri@xxxxxxxxx> > Cc: Ravi Shankar <ravi.v.shankar@xxxxxxxxx> > Cc: Borislav Petkov <bp@xxxxxxxxx> > Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@xxxxxxxxx> > --- > arch/x86/mm/pageattr.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) Reducing any differences between the EFI mapping and regular kernel mapping code in pageattr.c is a plus. Thanks Sai, applied. -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
