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From: Babu Moger <babu.moger@amd.com>
To: corbet@lwn.net, tglx@linutronix.de, mingo@redhat.com,
	bp@alien8.de, hpa@zytor.com, pbonzini@redhat.com,
	sean.j.christopherson@intel.com
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Subject: [PATCH 0/2] arch/x86: Enable MPK feature on AMD
Date: Wed, 06 May 2020 17:02:05 -0500
Message-ID: <158880240546.11615.2219410169137148044.stgit@naples-babu.amd.com> (raw)

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(-)

--

             reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-06 22:02 Babu Moger [this message]
2020-05-06 22:02 ` [PATCH 1/2] arch/x86: Rename config X86_INTEL_MEMORY_PROTECTION_KEYS to generic x86 Babu Moger
2020-05-06 22:21   ` Dave Hansen
2020-05-06 22:28     ` Dave Hansen
2020-05-06 22:36     ` Logan Gunthorpe
2020-05-07  7:29     ` Sebastian Andrzej Siewior
2020-05-07 14:44       ` Dave Hansen
2020-05-07 15:16         ` Paolo Bonzini
2020-05-07 16:06           ` Babu Moger
2020-05-07 16:07             ` Paolo Bonzini
2020-05-07 16:11               ` Babu Moger
2020-05-06 22:02 ` [PATCH 2/2] KVM: SVM: Add support for MPK feature on AMD Babu Moger
2020-05-06 22:26   ` Sean Christopherson
2020-05-07  8:07     ` Paolo Bonzini
2020-05-06 22:36   ` Dave Hansen

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