From: Sergey Fedorov <serge.fdrv@gmail.com>
To: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Peter Crosthwaite" <crosthwaite.peter@gmail.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Sergey Fedorov" <serge.fdrv@gmail.com>,
"Andreas Färber" <afaerber@suse.de>,
"Richard Henderson" <rth@twiddle.net>
Subject: [Qemu-devel] [PATCH v3 0/2] Architectural watchpoint check
Date: Sun, 31 Jan 2016 19:15:46 +0300 [thread overview]
Message-ID: <1454256948-10485-1-git-send-email-serge.fdrv@gmail.com> (raw)
This series is intended to fix ARM watchpoint emulation misbehavior.
QEMU hangs when QEMU watchpoint fires but it does not pass additional
architectural checks in ARM CPU debug exception handler. For details,
please see individual patches. The most relevant parts of the original
discussion about ARM breakpoint and watchpoint emulation misbehavior can be
found at:
https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg02715.html
https://lists.gnu.org/archive/html/qemu-devel/2015-09/msg00527.html
Changes in v2:
* Check moved before setting cpu->watchpoint_hit
* Pointer to watchpoint being checked passed to debug_check_watchpoint()
callback
* BP_WATCHPOINT_HIT flag cleared from flags from wp->flags in no-fire case
* Comment for debug_check_watchpoint() callback improved
Sergey Fedorov (2):
cpu: Add callback to check architectural watchpoint match
target-arm: Implement checking of fired watchpoint
exec.c | 6 ++++++
include/qom/cpu.h | 4 ++++
qom/cpu.c | 9 +++++++++
target-arm/cpu.c | 1 +
target-arm/internals.h | 3 +++
target-arm/op_helper.c | 35 +++++++++++++++++++++--------------
6 files changed, 44 insertions(+), 14 deletions(-)
--
1.9.1
next reply other threads:[~2016-01-31 16:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-31 16:15 Sergey Fedorov [this message]
2016-01-31 16:15 ` [Qemu-devel] [PATCH v3 1/2] cpu: Add callback to check architectural watchpoint match Sergey Fedorov
2016-02-02 12:23 ` Peter Maydell
2016-02-08 15:42 ` Peter Maydell
2016-02-08 15:57 ` Peter Maydell
2016-01-31 16:15 ` [Qemu-devel] [PATCH v3 2/2] target-arm: Implement checking of fired watchpoint Sergey Fedorov
2016-02-08 15:57 ` [Qemu-devel] [PATCH v3 0/2] Architectural watchpoint check Peter Maydell
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