From: Andy Lutomirski <luto@kernel.org>
To: X86 ML <x86@kernel.org>
Cc: Borislav Petkov <bpetkov@suse.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Brian Gerst <brgerst@gmail.com>,
Dave Hansen <dave.hansen@intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Andy Lutomirski <luto@kernel.org>
Subject: [PATCH 0/2] KPTI: get rid of cpu_entry_area mapping duplication
Date: Fri, 1 Dec 2017 22:20:09 -0800 [thread overview]
Message-ID: <cover.1512195450.git.luto@kernel.org> (raw)
I like this variant much better. It might also fix the nasty bug tglx
and peterz were chasing.
Andy Lutomirski (2):
Undo the split of setup_cpu_entry_area
x86/kpti: Reference all cpu_entry_area pagetables in the usermode
tables
arch/x86/include/asm/fixmap.h | 14 +++++---
arch/x86/include/asm/kpti.h | 8 +++--
arch/x86/kernel/cpu/common.c | 3 --
arch/x86/kernel/smpboot.c | 2 ++
arch/x86/kernel/traps.c | 6 +++-
arch/x86/mm/kpti.c | 82 ++++++++++++++++++++++++++-----------------
6 files changed, 71 insertions(+), 44 deletions(-)
--
2.13.6
next reply other threads:[~2017-12-02 6:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-02 6:20 Andy Lutomirski [this message]
2017-12-02 6:20 ` [PATCH 1/2] Undo the split of setup_cpu_entry_area Andy Lutomirski
2017-12-02 10:34 ` Thomas Gleixner
2017-12-02 10:47 ` Thomas Gleixner
2017-12-02 13:34 ` Andy Lutomirski
2017-12-02 14:20 ` Thomas Gleixner
2017-12-02 6:20 ` [PATCH 2/2] x86/kpti: Reference all cpu_entry_area pagetables in the usermode tables Andy Lutomirski
2017-12-02 10:38 ` Thomas Gleixner
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