Progress:
* UM-2 [QEMU upstream maintainership]
- usual release cycle work: rounded up a couple of last-minute
fixes for "whoops, this crashes" bugs and some safe changes like
docs typo fixes.
* QEMU-422 [QEMU Arm Neoverse V1 vCPU for TCG]
- Finished implementing the FEAT_PMUv3p5 work. In the process of
testing it I found a handful of bugs in our existing PMU
emulation code. Sent out the patchset which fixes those bugs and
adds FEAT_PMUv3p5.
- Cleaned up the epic to remove subtasks we aren't going to
implement (FEAT_SPE, FEAT_TRF), and added one for "actually
define the new CPU model"
- FEAT_LSE2 is the only remaining real work here, and it is
probably going to be seriously tricky...(i.e. I hope to leave
it to RTH ;-))
-- PMM
Project Stratos
===============
- continued working on [adding vhost-user-rng to crosvm]
- this is to demo Stratos on Gunyah
- backend comes up and device is detected but queues are not
consumed
- had some initial discussions with Viresh about talk structure for
KVM Forum
[adding vhost-user-rng to crosvm]
<https://github.com/stsquad/crosvm/tree/add-vhost-user-rng>
vhost-device maintainer effort ([UM-196])
- prepared a clean-up [branch for new queue interface]
[UM-196] <https://linaro.atlassian.net/browse/UM-196>
[branch for new queue interface]
<https://github.com/stsquad/vhost-device/tree/update-queue-interface>
QEMU Upstream Work ([UM-2])
===========================
- posted [PATCH for 7.1 v1 0/8] memory leaks and speed tweaks
Message-Id: <20220811151413.3350684-8-alex.bennee(a)linaro.org>
- will drop most of the speed tweaks until 7.2 opens
[UM-2] <https://linaro.atlassian.net/browse/UM-2>
Completed Reviews [1/1]
=======================
[PATCH 00/62] target/arm: Implement FEAT_HAFDBS
Message-Id: <20220703082419.770989-1-richard.henderson(a)linaro.org>
Absences
========
- 2 day week next week
- will take a long w/e for August BH
--
Alex Bennée
Hello,
I noticed that I didn't send a report for week #30. Sorry about that. For
that reason, this report covers two weeks.
# [GNU-767] Support changing SVE vector length in remote debugging
- Prepared and submitted upstream a fix and a testcase for a small SVE bug
when debugging in native mode an inferior which changes the SVE length.
Luis reviewed it and I submitted v2 addressing his comments.
# Misc
- Was out for 2 days.
--
Thiago
Progress:
* UM-2 [QEMU upstream maintainership]
- more investigation, triage and fixing of minor bugs in run-up to release
* QEMU-422 [QEMU Arm Neoverse V1 vCPU for TCG]
- starting working on the PMUv8p5 enhancements. These consist of a couple
of new cycle-counter-disable bits (easy) and extension of the event
counters to 64 bits (more tricky). So far I have code for the easy part
and have made a start on the hard part...
-- PMM
Progress:
* UM-2 [QEMU upstream maintainership]
- debugged and sent patch to fix a bug in timer_create
syscall support in linux-user on certain host libcs
- tried and failed to repro a bug where semihosting SYS_HEAPINFO
was returning addresses in the flash rom
- more Coverity issue triage -- now have finished triage of
everything that isn't either in the test suite or an
"insecure data handling" issue. Sent patches for a few
issues, prodded other people about some more...
-- PMM
Hello,
# [GNU-767] Support changing SVE vector length in remote debugging
* Fixed last bug which prevented the sve-ioctls QEMU testcase to be
correctly stepped through in gdbserver. The next step is checking
whether any regression was introduced by my changes, and clean up the
code.
* In the process, spotted small bug in GDB when stepping through the
sve-ioctls QEMU testcase using the existing native support. Started
preparing a patch to submit upstream.
# [LLVM-769] Linaro CI
* Increased tcwg-fx-02 ccache max size to 40 GB.
* Learned a bit about Zorg and started adding “depends_on_projects”
field to builders running on Linaro workers.
--
Thiago
Hi,
I noticed that bots like flang-aarch64-latest-gcc are quite slow and could
benefit from enabling ccache. Could you make it available on the system so
it could be turned on for all these builds?
Thanks,
--
Mehdi
Progress:
* UM-2 [QEMU upstream maintainership]
- softfreeze this week; lots of pullrequest merging
- spent some time going through our backlog of Coverity Scan issues, triaging
them and sending patches for some of them
- sent a patchset fixing portability issues in our configure script which
had crept in recently and were causing problems on OpenBSD and NetBSD
- sent out the invite emails for QEMU Summit
-- PMM
Hello,
# [GNU-767] Support changing SVE vector length in remote debugging
* Rebased the actual SVE vector length changes on top of the stabilised
per-thread target descriptions changes. Now stabilising the result. Fixed
a couple of problems found when remote-debugging QEMU's sve-ioctls test
binary, currently looking into a third one.
# Linaro CI's GDB testsuite results
* Updated and expanded the LLVM Docker Buildbot Maintenance wiki page with
the information about ccache setup I gathered in the past few days. Also
added a link to it to the Buildkite Bot Maintenance wiki page since
libstdc++ buildkites uses the same configuration.
* Increased ccache max size in GNU build jobs on tcwg-jade-02.
* Updated ABE repo's tested branch with my commits from last week to
improve the GDB testsuite results. Confirmed that the GDB testsuite went
from 538 unexpected failures to 307. There's still room for improvement
though.
--
Thiago
