linux-kernel - [PATCH 0/4] x86/boot/compressed/64: Switch between paging modes using trampoline

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Date:   Mon, 12 Mar 2018 13:02:42 +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>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>,
        Cyrill Gorcunov <gorcunov@...nvz.org>,
        Borislav Petkov <bp@...e.de>, 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 0/4] x86/boot/compressed/64: Switch between paging modes using trampoline

This patchset changes kernel decompression code to use trampoline to
switch between paging modes.

The patchset is replacement for previously reverted patch "Handle 5-level
paging boot if kernel is above 4G".

Please review and consider applying.

Kirill A. Shutemov (4):
  x86/boot/compressed/64: Make sure we have 32-bit code segment
  x86/boot/compressed/64: Use stack from trampoline memory
  x86/boot/compressed/64: Use page table in trampoline memory
  x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G

 arch/x86/boot/compressed/head_64.S | 128 ++++++++++++++++++++++++++-----------
 1 file changed, 90 insertions(+), 38 deletions(-)

-- 
2.16.1