linux-kernel - [PATCH 0/3] x86: Clean up SYSRET/SYSEXIT validation

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Date:   Sat, 18 Jul 2020 10:38:36 -0400
From:   Brian Gerst <brgerst@...il.com>
To:     linux-kernel@...r.kernel.org, x86@...nel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Brian Gerst <brgerst@...il.com>
Subject: [PATCH 0/3] x86: Clean up SYSRET/SYSEXIT validation

This series cleans up the tests for using the SYSRET or SYSEXIT
instructions on exit from a syscall, moving some code from assembly to C
and merging native and compat tests.

Brian Gerst (3):
  x86-64: Move SYSRET validation code to C
  x86-32: Remove SEP test for SYSEXIT
  x86: Clean up do_fast_syscall_32() tests

 arch/x86/entry/calling.h         |  10 +--
 arch/x86/entry/common.c          | 142 ++++++++++++++++++++-----------
 arch/x86/entry/entry_32.S        |   6 +-
 arch/x86/entry/entry_64.S        |  71 +---------------
 arch/x86/entry/entry_64_compat.S |  13 +--
 arch/x86/include/asm/segment.h   |   1 +
 arch/x86/include/asm/syscall.h   |   4 +-
 7 files changed, 108 insertions(+), 139 deletions(-)


base-commit: bccf9048549afe54b3c6bc8979ebfddea748da85
-- 
2.26.2