From: Andy Lutomirski <luto@kernel.org>
To: x86@kernel.org, LKML <linux-kernel@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Kernel Hardening <kernel-hardening@lists.openwall.com>,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>
Subject: [kernel-hardening] [PATCH 0/3] x86/pti-ish syscall cleanups
Date: Sun, 28 Jan 2018 10:38:48 -0800 [thread overview]
Message-ID: <cover.1517164461.git.luto@kernel.org> (raw)
Three changes in here:
- Get rid of the SYSCALL64 fast path as suggested by Linus.
- Move TS_COMPAT into the same cacheline as thread_info::flags, also
suggested by Linus.
- Document SYSCALL_DEFINE a bit better.
Andy Lutomirski (3):
x86/entry/64: Remove the SYSCALL64 fast path
x86/asm: Move 'status' from thread_struct to thread_info
syscalls: Add a bit of documentation to __SYSCALL_DEFINE
arch/x86/entry/common.c | 4 +-
arch/x86/entry/entry_64.S | 127 ++-----------------------------------
arch/x86/entry/syscall_64.c | 7 +-
arch/x86/include/asm/processor.h | 2 -
arch/x86/include/asm/syscall.h | 6 +-
arch/x86/include/asm/thread_info.h | 3 +-
arch/x86/kernel/process_64.c | 4 +-
arch/x86/kernel/ptrace.c | 2 +-
arch/x86/kernel/signal.c | 2 +-
include/linux/syscalls.h | 10 +++
10 files changed, 30 insertions(+), 137 deletions(-)
--
2.14.3
next reply other threads:[~2018-01-28 18:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-28 18:38 Andy Lutomirski [this message]
2018-01-28 18:38 ` [kernel-hardening] [PATCH 1/3] x86/entry/64: Remove the SYSCALL64 fast path Andy Lutomirski
2018-01-28 19:00 ` [kernel-hardening] " Ingo Molnar
2018-01-30 14:49 ` [tip:x86/pti] " tip-bot for Andy Lutomirski
2018-01-30 14:50 ` [tip:x86/pti] x86/entry/64: Push extra regs right away tip-bot for Andy Lutomirski
2018-01-28 18:38 ` [kernel-hardening] [PATCH 2/3] x86/asm: Move 'status' from thread_struct to thread_info Andy Lutomirski
2018-01-28 19:02 ` [kernel-hardening] " Ingo Molnar
2018-01-28 19:19 ` Linus Torvalds
2018-01-30 14:50 ` [tip:x86/pti] " tip-bot for Andy Lutomirski
2018-01-28 18:38 ` [kernel-hardening] [PATCH 3/3] syscalls: Add a bit of documentation to __SYSCALL_DEFINE Andy Lutomirski
2018-01-28 19:15 ` [kernel-hardening] " Linus Torvalds
2018-01-28 20:21 ` Al Viro
2018-01-28 20:42 ` Linus Torvalds
2018-01-28 22:50 ` Al Viro
2018-01-29 6:22 ` Al Viro
2018-01-28 19:21 ` Ingo Molnar
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