[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[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
- [Qemu-devel] [PATCH v2 for-2.10 0/3] Fixup logic for exclusive pair,
Richard Henderson <=