[PATCH 0/6 v5] kvm: powerpc: use cache attributes from linux pte

[Bharat Bhushan]

From: Bharat Bhushan <bharat.bhushan at freescale.com>

First patch is a typo fix where book3e define _PAGE_LENDIAN while it
should be defined as _PAGE_ENDIAN. This seems to show that this is never exercised :-)

Second and third patch is to allow guest controlling "G"-Guarded and "E"-Endian TLB attributes respectively.

Fourth patch is moving functions/logic in common code so they can be used on booke also.

Fifth and Sixth patch is actually setting caching attributes (TLB.WIMGE) using corresponding Linux pte.

v3->v5
 - Fix tlb-reference-flag clearing issue (patch 4/6)
 - There was a patch (4/6 powerpc: move linux pte/hugepte search to more generic file)
   in the last series of this patchset which was moving pte/hugepte search functions to
   generic file. That patch is no more needed as some other patch is already applied to fix that :)

v2->v3
 - now lookup_linux_pte() only have pte search logic and it does not
   set any access flags in pte. There is already a function for setting
   access flag which will be called explicitly where needed.
   On booke we only need to search for pte to get WIMG.

v1->v2
 - Earlier caching attributes (WIMGE) were set based of page is RAM or not
   But now we get these attributes from corresponding Linux PTE.

Bharat Bhushan (6):
  powerpc: book3e: _PAGE_LENDIAN must be _PAGE_ENDIAN
  kvm: powerpc: allow guest control "E" attribute in mas2
  kvm: powerpc: allow guest control "G" attribute in mas2
  kvm: powerpc: keep only pte search logic in lookup_linux_pte
  kvm: booke: clear host tlb reference flag on guest tlb invalidation
  kvm: powerpc: use caching attributes as per linux pte

 arch/powerpc/include/asm/kvm_host.h   |    2 +-
 arch/powerpc/include/asm/pgtable.h    |   24 ++++++++++++++++
 arch/powerpc/include/asm/pte-book3e.h |    2 +-
 arch/powerpc/kvm/book3s_hv_rm_mmu.c   |   36 ++++++++----------------
 arch/powerpc/kvm/booke.c              |    2 +-
 arch/powerpc/kvm/e500.h               |   10 ++++--
 arch/powerpc/kvm/e500_mmu_host.c      |   50 +++++++++++++++++++--------------
 7 files changed, 74 insertions(+), 52 deletions(-)