linux-kernel - [PATCH 0/2] arch/x86: Enable MPK feature on AMD

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Date:   Wed, 06 May 2020 17:02:05 -0500
From:   Babu Moger <babu.moger@....com>
To:     corbet@....net, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        hpa@...or.com, pbonzini@...hat.com, sean.j.christopherson@...el.com
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Subject: [PATCH 0/2] arch/x86: Enable MPK feature on AMD

AMD's next generation of EPYC processors support the MPK (Memory
Protection Keys) feature.

AMD documentation for MPK feature is available at "AMD64 Architecture
Programmer’s Manual Volume 2: System Programming, Pub. 24593 Rev. 3.34,
Section 5.6.6 Memory Protection Keys (MPK) Bit".

The documentation can be obtained at the link below:
https://bugzilla.kernel.org/show_bug.cgi?id=206537

This series enables the feature on AMD and updates config parameters
to reflect the MPK support on generic x86 platforms.

---

Babu Moger (2):
      arch/x86: Rename config X86_INTEL_MEMORY_PROTECTION_KEYS to generic x86
      KVM: SVM: Add support for MPK feature on AMD


 Documentation/core-api/protection-keys.rst     |    3 ++-
 arch/x86/Kconfig                               |    6 +++---
 arch/x86/include/asm/disabled-features.h       |    4 ++--
 arch/x86/include/asm/mmu.h                     |    2 +-
 arch/x86/include/asm/mmu_context.h             |    4 ++--
 arch/x86/include/asm/pgtable.h                 |    4 ++--
 arch/x86/include/asm/pgtable_types.h           |    2 +-
 arch/x86/include/asm/special_insns.h           |    2 +-
 arch/x86/include/uapi/asm/mman.h               |    2 +-
 arch/x86/kernel/cpu/common.c                   |    2 +-
 arch/x86/kvm/svm/svm.c                         |   20 ++++++++++++++++++++
 arch/x86/kvm/svm/svm.h                         |    2 ++
 arch/x86/mm/Makefile                           |    2 +-
 arch/x86/mm/pkeys.c                            |    2 +-
 scripts/headers_install.sh                     |    2 +-
 tools/arch/x86/include/asm/disabled-features.h |    4 ++--
 16 files changed, 43 insertions(+), 20 deletions(-)

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