From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, alistair.francis@xilinx.com,
edgar.iglesias@xilinx.com
Subject: [Qemu-devel] [PATCH v2 for-2.10 0/3] Fixup logic for exclusive pair
Date: Tue, 15 Aug 2017 07:57:11 -0700 [thread overview]
Message-ID: <20170815145714.17635-1-richard.henderson@linaro.org> (raw)
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
next reply other threads:[~2017-08-15 14:57 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-15 14:57 Richard Henderson [this message]
2017-08-15 14:57 ` [Qemu-devel] [PATCH v2 for-2.10 1/3] target/arm: Correct exclusive store cmpxchg memop mask Richard Henderson
2017-08-15 15:41 ` Philippe Mathieu-Daudé
2017-08-15 16:21 ` Alistair Francis
2017-08-15 14:57 ` [Qemu-devel] [PATCH v2 for-2.10 2/3] target/arm: Correct load exclusive pair atomicity Richard Henderson
2017-08-15 14:57 ` [Qemu-devel] [PATCH v2 for-2.10 3/3] target/arm: Require alignment for load exclusive Richard Henderson
2017-08-15 15:27 ` Eric Blake
2017-08-15 15:56 ` Philippe Mathieu-Daudé
2017-08-15 16:14 ` Peter Maydell
2017-08-15 17:48 ` Philippe Mathieu-Daudé
2017-08-15 16:32 ` Richard Henderson
2017-08-15 17:49 ` Philippe Mathieu-Daudé
2017-08-15 17:16 ` [Qemu-devel] [PATCH v2 for-2.10 0/3] Fixup logic for exclusive pair Peter Maydell
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