[PATCH 0/2] x86, mm: Fix PAT bit handling of large pages

[Toshi Kani <toshi.kani@hp.com>]

The PAT bit gets relocated to bit 12 when PUD and PMD mappings are
used.  This bit 12, however, is not covered by PTE_FLAGS_MASK, which
is corrently used for masking the flag bits for all cases. 

Patch 1/2 fixes pud_flags() and pmd_flags() to handle the PAT bit
when PUD and PMD mappings are used.

Patch 2/2 fixes /sys/kernel/debug/kernel_page_tables to show the
PAT bit properly.

Note, the PAT bit is first enabled in 4.2-rc1 with WT mappings.

---
Toshi Kani (2):
  1/2 x86: Fix pXd_flags() to handle _PAGE_PAT_LARGE
  2/2 x86, mm: Fix page table dump to show PAT bit

---
 arch/x86/include/asm/pgtable_types.h | 16 ++++++++++++---
 arch/x86/mm/dump_pagetables.c        | 39 +++++++++++++++++++-----------------
 2 files changed, 34 insertions(+), 21 deletions(-)

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