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[Qemu-devel] [ PATCH v7 00/22] replay additions
From: |
Pavel Dovgalyuk |
Subject: |
[Qemu-devel] [ PATCH v7 00/22] replay additions |
Date: |
Tue, 27 Feb 2018 12:51:35 +0300 |
User-agent: |
StGit/0.17.1-dirty |
This set of patches moves replay lock upper in the function call tree.
Now replay lock functions similar to BQL in older version and allows
deterministic execution of the threads in icount mode.
It is also fixes some vmstate creation (and loading) issues
in record/replay modes:
- VM start/stop fixes in replay mode
- overlay creation for blkreplay filter
- fixes for vmstate save/load in record/replay mode
- fixes for host clock vmstate
There is also a set of helper scripts written by Alex Bennée
for debugging the record/replay code.
v6 patches with updates for v7 are available in the repository:
https://github.com/ispras/qemu/tree/rr-180207
v7 changes:
- updated record/replay documentation
- removed abort() from mutex stub functions
- fixed cpu_io_recompile function
v6 changes:
- removed BQL optimization at all
- refined replay lock patches
- removed lock/unlock from replay-audio
v5 changes:
- removed patch for narrowing BQL-protected code
- disabled bdrv_(drain/flush)_all for record/replay mode
v4 changes:
- removed upstreamed patches
- added patch for saving async queue state in replay
- minor fixes
v3 changes:
- removed upstreamed patches
- fixed bug with recursive checkpoints
- fixed bug with icount warp checkpoint
v2 changes:
- updated lock/unlock logic (as suggested by Paolo Bonzini)
- updated cpu execution loop to avoid races in setting/resetting exit request
(as suggested by Paolo Bonzini)
- minor changes
---
Alex Bennée (5):
replay/replay.c: bump REPLAY_VERSION again
replay/replay-internal.c: track holding of replay_lock
replay: make locking visible outside replay code
replay: push replay_mutex_lock up the call tree
scripts/replay-dump.py: replay log dumper
Pavel Dovgalyuk (17):
cpu-exec: fix exception_index handling
block: implement bdrv_snapshot_goto for blkreplay
blkreplay: create temporary overlay for underlaying devices
replay: disable default snapshot for record/replay
replay: fix processing async events
replay: fixed replay_enable_events
replay: fix save/load vm for non-empty queue
replay: added replay log format description
replay: save prior value of the host clock
replay: don't destroy mutex at exit
replay: check return values of fwrite
replay: avoid recursive call of checkpoints
replay: don't process async events when warping the clock
replay: save vmstate of the asynchronous events
replay: don't drain/flush bdrv queue while RR is working
replay: update documentation
tcg: fix cpu_io_recompile
accel/tcg/cpu-exec.c | 5 +
accel/tcg/translate-all.c | 18 ++-
block/blkreplay.c | 75 +++++++++++
block/io.c | 22 +++
cpus.c | 26 +++-
docs/replay.txt | 163 +++++++++++++++++++++---
include/qemu/timer.h | 14 ++
include/sysemu/replay.h | 18 +++
migration/savevm.c | 13 ++
replay/replay-audio.c | 14 +-
replay/replay-char.c | 21 +--
replay/replay-events.c | 75 +++++------
replay/replay-internal.c | 47 ++++++-
replay/replay-internal.h | 16 ++
replay/replay-snapshot.c | 12 ++
replay/replay-time.c | 10 +
replay/replay.c | 62 ++++++---
scripts/replay-dump.py | 308 +++++++++++++++++++++++++++++++++++++++++++++
stubs/replay.c | 9 +
util/main-loop.c | 15 ++
util/qemu-timer.c | 12 ++
vl.c | 12 +-
22 files changed, 831 insertions(+), 136 deletions(-)
create mode 100755 scripts/replay-dump.py
--
Pavel Dovgalyuk
- [Qemu-devel] [ PATCH v7 00/22] replay additions,
Pavel Dovgalyuk <=
- [Qemu-devel] [PATCH v7 01/22] cpu-exec: fix exception_index handling, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 02/22] block: implement bdrv_snapshot_goto for blkreplay, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 03/22] blkreplay: create temporary overlay for underlaying devices, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 04/22] replay: disable default snapshot for record/replay, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 05/22] replay: fix processing async events, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 06/22] replay: fixed replay_enable_events, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 07/22] replay: fix save/load vm for non-empty queue, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 08/22] replay: added replay log format description, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 09/22] replay: save prior value of the host clock, Pavel Dovgalyuk, 2018/02/27
- [Qemu-devel] [PATCH v7 11/22] replay/replay-internal.c: track holding of replay_lock, Pavel Dovgalyuk, 2018/02/27