linux-kernel - [PATCH 0/1] arm/arm64: add support for folded p4d page tables

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Date:   Mon, 30 Dec 2019 10:27:33 +0200
From:   Mike Rapoport <rppt@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Catalin Marinas <catalin.marinas@....com>,
        James Morse <james.morse@....com>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        Marc Zyngier <maz@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Will Deacon <will@...nel.org>, kvmarm@...ts.cs.columbia.edu,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Mike Rapoport <rppt@...nel.org>,
        Mike Rapoport <rppt@...ux.ibm.com>
Subject: [PATCH 0/1] arm/arm64: add support for folded p4d page tables

From: Mike Rapoport <rppt@...ux.ibm.com>

Hi,

This is a part of clean up of the page table manipulation code that aims to
remove asm-generic/5level-fixup.h and asm-generic/pgtable-nop4d-hack.h

There is a single patch for both arm and arm64 because doing the conversion
separately would mean breaking the shared mmu bits in virt/kvm/arm.

The patch is build tested and boot tested on qemu-system-{arm,aarch64}.

Mike Rapoport (1):
  arm/arm64: add support for folded p4d page tables

 arch/arm/include/asm/kvm_mmu.h          |   5 +-
 arch/arm/include/asm/pgtable.h          |   1 -
 arch/arm/include/asm/stage2_pgtable.h   |  15 +-
 arch/arm/lib/uaccess_with_memcpy.c      |   9 +-
 arch/arm/mach-sa1100/assabet.c          |   2 +-
 arch/arm/mm/dump.c                      |  29 +++-
 arch/arm/mm/fault-armv.c                |   7 +-
 arch/arm/mm/fault.c                     |  28 +++-
 arch/arm/mm/idmap.c                     |   3 +-
 arch/arm/mm/init.c                      |   2 +-
 arch/arm/mm/ioremap.c                   |  12 +-
 arch/arm/mm/mm.h                        |   2 +-
 arch/arm/mm/mmu.c                       |  35 +++-
 arch/arm/mm/pgd.c                       |  40 ++++-
 arch/arm64/include/asm/kvm_mmu.h        |  10 +-
 arch/arm64/include/asm/pgalloc.h        |  10 +-
 arch/arm64/include/asm/pgtable-types.h  |   5 +-
 arch/arm64/include/asm/pgtable.h        |  37 +++--
 arch/arm64/include/asm/stage2_pgtable.h |  48 ++++--
 arch/arm64/kernel/hibernate.c           |  46 +++++-
 arch/arm64/mm/dump.c                    |  29 +++-
 arch/arm64/mm/fault.c                   |   9 +-
 arch/arm64/mm/hugetlbpage.c             |  15 +-
 arch/arm64/mm/kasan_init.c              |  41 ++++-
 arch/arm64/mm/mmu.c                     |  52 ++++--
 arch/arm64/mm/pageattr.c                |   7 +-
 virt/kvm/arm/mmu.c                      | 209 ++++++++++++++++++++----
 27 files changed, 565 insertions(+), 143 deletions(-)

-- 
2.24.0