linux-kernel - [PATCH 0/3] x86/vm86/32: A bugfix and a matching test improvement

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Message-Id: <cover.1521003603.git.luto@kernel.org>
Date:   Tue, 13 Mar 2018 22:03:09 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     x86@...nel.org, LKML <linux-kernel@...r.kernel.org>
Cc:     Borislav Petkov <bp@...en8.de>, Stas Sergeev <stsp@...t.ru>,
        bartoldeman@...il.com, Brian Gerst <brgerst@...il.com>,
        Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 0/3] x86/vm86/32: A bugfix and a matching test improvement

A patch in 4.2 broke vm86's POPF emulation in a way that was
somehow subtle enough that no one noticed until now.  Fix it
and improve the test case to exercise the code.

(The improved test case also exercises some code paths that were *not*
 broken but that would have become broken if Stas' original suggested
 patch were applied.  Go testing!)

Andy Lutomirski (3):
  selftests/x86/entry_from_vm86: Exit with 1 if we fail
  selftests/x86/entry_from_vm86: Add test cases for POPF
  x86/vm86/32: Fix POPF emulation

 arch/x86/kernel/vm86_32.c                     |  3 ++-
 tools/testing/selftests/x86/entry_from_vm86.c | 32 +++++++++++++++++++++++----
 2 files changed, 30 insertions(+), 5 deletions(-)

-- 
2.14.3