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[Qemu-devel] [PATCH v2 for-2.10 0/3] Fixup logic for exclusive pair


From: Richard Henderson
Subject: [Qemu-devel] [PATCH v2 for-2.10 0/3] Fixup logic for exclusive pair
Date: Tue, 15 Aug 2017 07:57:11 -0700

In reviewing my previous patch, Peter pointed out that it is
CONSTRAINED UNPREDICTABLE what happens when you mix the number
of registers in a LDX[PR] + STX[RP] pair.  So most of the bug
that I thought that I was fixing isn't a bug at all.

That said, the patch does still fix a real bug wrt single-copy
semantics, so patch 2 is largely unchanged; the commit message
is re-worded.

I also un-squashed Alistair's original patches and dropped the
tcg/tcg-op.c change, to be revisited for 2.11.


r~


Alistair Francis (2):
  target/arm: Correct exclusive store cmpxchg memop mask
  target/arm: Require alignment for load exclusive

Richard Henderson (1):
  target/arm: Correct load exclusive pair atomicity

 target/arm/translate-a64.c | 63 ++++++++++++++++++++++++++++------------------
 1 file changed, 39 insertions(+), 24 deletions(-)

-- 
2.13.4




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