linux-kernel - [PATCH 0/5] x86/boot/compressed/64: Prepare trampoline memory

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20180226180451.86788-1-kirill.shutemov@linux.intel.com>
Date:   Mon, 26 Feb 2018 21:04:46 +0300
From:   "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:     Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>, Borislav Petkov <bp@...e.de>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>,
        Cyrill Gorcunov <gorcunov@...nvz.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Matthew Wilcox <willy@...radead.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [PATCH 0/5] x86/boot/compressed/64: Prepare trampoline memory

Here's re-split of the patch that prepares trampoline memory, but doesn't
actually uses it yet. The original patch turned out to be problematic.
Splitting the patch should help to pin down the issue.

The functionality should match the original patch (although I've moved a
bit more into C).

Borislav, could you check which patch breaks boot for you (if any)?

Kirill A. Shutemov (5):
  x86/boot/compressed/64: Describe the logic behind LA57 check
  x86/boot/compressed/64: Find a place for 32-bit trampoline
  x86/boot/compressed/64: Save and restore trampoline memory
  x86/boot/compressed/64: Set up trampoline memory
  x86/boot/compressed/64: Prepare new top-level page table for
    trampoline

 arch/x86/boot/compressed/head_64.S    |  13 +++-
 arch/x86/boot/compressed/misc.c       |   4 +
 arch/x86/boot/compressed/pgtable.h    |  20 +++++
 arch/x86/boot/compressed/pgtable_64.c | 133 +++++++++++++++++++++++++++++++++-
 4 files changed, 166 insertions(+), 4 deletions(-)
 create mode 100644 arch/x86/boot/compressed/pgtable.h

-- 
2.16.1