From: Paul Mackerras <paulus@samba.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH 0/3] Transactional memory fixes
Date: Mon, 13 Jan 2014 15:56:27 +1100 [thread overview]
Message-ID: <1389588990-25953-1-git-send-email-paulus@samba.org> (raw)
This series of patches fixes a couple of cases where bugs in the
handling of FP/VMX/VSX state around transactions can lead to
corruption of the FP/VMX/VSX state visible to user processes. The
bugs were found basically by inspection but then verified by writing
small test programs that provoke the bugs.
Paul.
arch/powerpc/include/asm/processor.h | 2 +
arch/powerpc/include/asm/thread_info.h | 9 +-
arch/powerpc/include/asm/tm.h | 1 +
arch/powerpc/kernel/entry_64.S | 12 ++-
arch/powerpc/kernel/fpu.S | 16 ++++
arch/powerpc/kernel/process.c | 146 ++++++++++++++++++++++++++++++---
arch/powerpc/kernel/signal.c | 3 +-
arch/powerpc/kernel/signal_32.c | 21 ++---
arch/powerpc/kernel/signal_64.c | 14 ++--
arch/powerpc/kernel/traps.c | 57 +++++++++----
arch/powerpc/kernel/vector.S | 10 +++
11 files changed, 231 insertions(+), 60 deletions(-)
next reply other threads:[~2014-01-13 4:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-13 4:56 Paul Mackerras [this message]
2014-01-13 4:56 ` [PATCH 1/3] powerpc: Reclaim two unused thread_info flag bits Paul Mackerras
2014-01-13 4:56 ` [PATCH 2/3] powerpc: Don't corrupt transactional state when using FP/VMX in kernel Paul Mackerras
2014-01-13 4:56 ` [PATCH 3/3] powerpc: Fix transactional FP/VMX/VSX unavailable handlers Paul Mackerras
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