linux-kernel - [PATCH 0/3] x86/mm/encrypt: Simplify pgtable helpers

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Date:   Tue, 12 Dec 2017 14:45:41 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:     Tom Lendacky <thomas.lendacky@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     x86@...nel.org, Borislav Petkov <bp@...e.de>,
        Brijesh Singh <brijesh.singh@....com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [PATCH 0/3] x86/mm/encrypt: Simplify pgtable helpers

This patchset simplifies sme_populate_pgd(), sme_populate_pgd_large() and
sme_pgtable_calc() functions.

As a side effect, the patchset makes encryption code ready to boot-time
switching between paging modes.

The patchset is build on top of Tom's "x86: SME: BSP/SME microcode update
fix" patchset.

It was only build-tested. Tom, could you please get it tested properly?

Kirill A. Shutemov (3):
  x86/mm/encrypt: Move sme_populate_pgd*() into separate translation
    unit
  x86/mm/encrypt: Rewrite sme_populate_pgd() and
    sme_populate_pgd_large()
  x86/mm/encrypt: Rewrite sme_pgtable_calc()

 arch/x86/mm/Makefile               |  13 +--
 arch/x86/mm/mem_encrypt.c          | 169 ++++---------------------------------
 arch/x86/mm/mem_encrypt_identity.c | 123 +++++++++++++++++++++++++++
 arch/x86/mm/mm_internal.h          |   4 +
 4 files changed, 150 insertions(+), 159 deletions(-)
 create mode 100644 arch/x86/mm/mem_encrypt_identity.c

-- 
2.15.0