linux-kernel - [PATCH v2 0/2] Handle IST interrupts from userspace on the normal stack

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Date:	Thu, 13 Nov 2014 14:31:19 -0800
From:	Andy Lutomirski <luto@...capital.net>
To:	Borislav Petkov <bp@...en8.de>, x86@...nel.org
Cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Tony Luck <tony.luck@...el.com>,
	Andi Kleen <andi@...stfloor.org>,
	Andy Lutomirski <luto@...capital.net>
Subject: [PATCH v2 0/2] Handle IST interrupts from userspace on the normal stack

We currently run IST interrupt handlers on the IST stack.  Changing
it may simplify a few things.  See patch 2 for details.

Patch 1 is a fix for a not-quite-bug in uprobes that Oleg noticed
that would be exposed by patch 2.

Andy Lutomirski (2):
  x86, entry: Switch stacks on a paranoid entry from userspace
  uprobes, x86: Fix _TIF_UPROBE vs _TIF_NOTIFY_RESUME

 Documentation/x86/entry_64.txt         | 18 +++++---
 Documentation/x86/x86_64/kernel-stacks |  8 ++--
 arch/x86/include/asm/thread_info.h     |  2 +-
 arch/x86/kernel/entry_64.S             | 82 +++++++++++++++++-----------------
 arch/x86/kernel/traps.c                | 23 +++-------
 kernel/events/uprobes.c                |  1 -
 6 files changed, 65 insertions(+), 69 deletions(-)

-- 
1.9.3

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