Commit Graph

599 Commits

Author SHA1 Message Date
John Snow
45b14be9b6 python: enable testing for 3.13
Python 3.13 is in beta and Fedora 41 is preparing to make it the default
system interpreter; enable testing for it.

(In the event problems develop prior to release, it should only impact
the check-python-tox job, which is not run by default and is allowed to
fail.)

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20240626232230.408004-5-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2024-07-12 16:36:20 -04:00
Akihiko Odaki
aa8246d8b4 tests/docker: Specify --userns keep-id for Podman
Previously we are always specifying -u $(UID) to match the UID in the
container with one outside. This causes a problem with rootless Podman.

Rootless Podman remaps user IDs in the container to ones controllable
for the current user outside. The -u option instructs Podman to use
a specified UID in the container but does not affect the UID remapping.
Therefore, the UID in the container can be remapped to some other UID
outside the container. This can make the access to bind-mounted volumes
fail because the remapped UID mismatches with the owner of the
directories.

Replace -u $(UID) with --userns keep-id, which fixes the UID remapping.
This change is limited to Podman because Docker does not support
--userns keep-id.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240626-podman-v1-1-f8c8daf2bb0a@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-6-alex.bennee@linaro.org>
2024-07-05 12:33:41 +01:00
Alex Bennée
515632d520 tests/lcitool: fix debian-i686-cross toolchain prefix
I guess we never noticed and tried to build with this cross image. Fix
the toolchain prefix so we actually build 32 bit images.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-2-alex.bennee@linaro.org>
2024-07-05 12:33:32 +01:00
zhenwei pi
c0cb5ccc35 test: Remove libibumad dependence
Remove libibumad dependence from the test environment.

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240611105427.61395-3-pizhenwei@bytedance.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-06-12 10:21:49 +02:00
Thomas Huth
61d1e3cbde tests/lcitool: Install mingw-w64-tools for the Windows cross-builds
Beside g++ we also need the mingw-w64-tools for properly building
the code in qga/vss-win32/ , so let's install that package now, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240601070543.37786-5-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240603175328.3823123-11-alex.bennee@linaro.org>
2024-06-06 10:26:13 +01:00
Thomas Huth
06f3330bb0 tests/lcitool: Bump to latest libvirt-ci and update Fedora and Alpine version
Update to the latest version of lcitool. It dropped support for Fedora 38
and Alpine 3.18, so we have to update these to newer versions here, too.

Python 3.12 dropped the "imp" module which we still need for running
Avocado. Fortunately Fedora 40 still ships with a work-around package
that we can use until somebody updates our Avocado to a newer version.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20240601070543.37786-3-thuth@redhat.com>
[AJB: regen on rebase]
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240603175328.3823123-10-alex.bennee@linaro.org>
2024-06-06 10:26:13 +01:00
Thomas Huth
e4b6adae7a tests/docker/dockerfiles: Update container files with "lcitool-refresh"
Run "make lcitool-refresh" after the previous changes to the
lcitool files. This removes the g++ and xfslibs-dev packages
from the dockerfiles (except for the fedora-win64-cross dockerfile
where we keep the C++ compiler).

Message-ID: <20240516084059.511463-6-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-17 11:16:43 +02:00
Daniel P. Berrangé
bad7a2759c dockerfiles: add 'MAKE' env variable to remaining containers
All the lcitool generated containers define a "MAKE" env. It will be
convenient for later patches if all containers do this.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240513111551.488088-2-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-05-14 12:40:08 +02:00
Thomas Huth
641b1efe01 tests: Update our CI to use CentOS Stream 9 instead of 8
RHEL 9 (and thus also the derivatives) have been available since two
years now, so according to QEMU's support policy, we can drop the active
support for the previous major version 8 now.

Another reason for doing this is that Centos Stream 8 will go EOL soon:

https://blog.centos.org/2023/04/end-dates-are-coming-for-centos-stream-8-and-centos-linux-7/

  "After May 31, 2024, CentOS Stream 8 will be archived
   and no further updates will be provided."

Thus upgrade our CentOS Stream container to major version 9 now.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240418101056.302103-5-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Thomas Huth
2355d18c79 tests/docker/dockerfiles: Run lcitool-refresh after the lcitool update
This update adds the removing of the EXTERNALLY-MANAGED marker files
that has been added to the lcitool recently.

Quoting Daniel:
"For those who don't know, python now commonly blocks the ability to
run 'pip install' outside of a venv. This generally makes sense for
a precious installation environment. Our containers are disposable
though, so a venv has no benefit. Removing the 'EXTERNALLY-MANAGED'
allows the historical arbitrary use of 'pip' outside a venv.
lcitool just does this unconditionally given the containers are
not precious."

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240418101056.302103-4-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Thomas Huth
45070eb716 tests: Remove Ubuntu 20.04 container
Since Ubuntu 22.04 has now been available for more than two years, we
can stop actively supporting the previous LTS version of Ubuntu now.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240418101056.302103-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00
Philippe Mathieu-Daudé
6c3014858c target/nios2: Remove the deprecated Nios II target
The Nios II target is deprecated since v8.2 in commit 9997771bc1
("target/nios2: Deprecate the Nios II architecture").

Remove:
- Buildsys / CI infra
- User emulation
- System emulation (10m50-ghrd & nios2-generic-nommu machines)
- Tests

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Message-Id: <20240327144806.11319-3-philmd@linaro.org>
2024-04-24 16:03:38 +02:00
Peter Maydell
8b47ec7abe .gitlab-ci.d: Drop cross-win32-system job
We don't support 32-bit Windows any more, so we don't need to defend it
with this CI job.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: "Daniel P. Berrangé" <berrange@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20240222130920.362517-3-peter.maydell@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-02-23 08:13:52 +01:00
Fabiano Rosas
7485508341 tests/docker: Add sqlite3 module to openSUSE Leap container
Avocado needs sqlite3:

  Failed to load plugin from module "avocado.plugins.journal":
  ImportError("Module 'sqlite3' is not installed.
  Use: sudo zypper install python311 to install it")

>From 'zypper info python311':
  "This package supplies rich command line features provided by
  readline, and sqlite3 support for the interpreter core, thus forming
  a so called "extended" runtime."

Include the appropriate package in the lcitool mappings which will
guarantee the dockerfile gets properly updated when lcitool is
run. Also include the updated dockerfile.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
Suggested-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240117164227.32143-1-farosas@suse.de>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240207163812.3231697-2-alex.bennee@linaro.org>
2024-02-09 17:48:25 +00:00
Brian Cain
17ed7cec55 tests/docker: Hexagon toolchain update
This update includes support for privileged instructions.

Signed-off-by: Brian Cain <bcain@quicinc.com>
Reviewed-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Tested-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <20240114232354.4109231-1-bcain@quicinc.com>
2024-01-21 18:24:05 -08:00
Alex Bennée
8e721c3277 tests/docker: merge debian-native with debian-amd64
debian-native isn't really needed and suffers from the problem of
tracking a distros dependencies rather than the projects. With a
little surgery we can make the debian-amd64 container architecture
neutral and allow people to use it to build a native QEMU.

Rename it so it follows the same non-arch pattern of the other distro
containers.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231120150833.2552739-4-alex.bennee@linaro.org>
2023-11-23 14:10:04 +00:00
Daniel P. Berrangé
aa5730b07e tests/docker: replace fedora-i386 with debian-i686
Fedora is gradually killing off i386 packages in its repos, via a
death-by-1000-cuts process. Thus Debian looks like a better long
term bet for i686 build testing. It has the added advantage that
we can generate it via lcitool too.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20231107164109.1449014-1-berrange@redhat.com>
[AJB: tweak commit msg, set correct prefix]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231120150833.2552739-2-alex.bennee@linaro.org>
2023-11-23 11:55:32 +00:00
Alex Bennée
aba77ac5db tests/docker: upgrade debian-all-test-cross to bookworm
This requires a few more tweaks than usual as:

  - the default sources format has changed
  - bring in python3-tomli from the repos
  - split base install from cross compilers
  - also include libclang-rt-dev for sanitiser builds

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-16-alex.bennee@linaro.org>
2023-10-31 14:10:21 +00:00
Alex Bennée
7ccb4153fe tests/docker: use debian-all-test-cross for sparc64
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-15-alex.bennee@linaro.org>
2023-10-31 14:10:21 +00:00
Alex Bennée
26025d8e36 tests/docker: use debian-all-test-cross for riscv64
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-14-alex.bennee@linaro.org>
2023-10-31 14:10:14 +00:00
Alex Bennée
b09bb6d1b8 tests/docker: use debian-all-test-cross for mips
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-13-alex.bennee@linaro.org>
2023-10-31 14:10:14 +00:00
Alex Bennée
92a3165e1a tests/docker: use debian-all-test-cross for mips64
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-12-alex.bennee@linaro.org>
2023-10-31 14:10:14 +00:00
Alex Bennée
9d9a573612 tests/docker: use debian-all-test-cross for m68k
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-11-alex.bennee@linaro.org>
2023-10-31 14:10:14 +00:00
Alex Bennée
95f5bf9521 tests/docker: use debian-all-test-cross for hppa
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-10-alex.bennee@linaro.org>
2023-10-31 14:10:14 +00:00
Alex Bennée
eb4cb4ed1f tests/docker: use debian-all-test-cross for power
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-9-alex.bennee@linaro.org>
2023-10-31 14:10:06 +00:00
Alex Bennée
4e76d98ae9 tests/docker: move sh4 to use debian-legacy-test-cross
sh4 is another target which doesn't work with bookworm compilers. To
keep on buster move across to the debian-legacy-test-cross image and
update accordingly.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231030135715.800164-1-alex.bennee@linaro.org>
2023-10-31 13:28:34 +00:00
Alex Bennée
d004e27b4e tests/docker: use debian-legacy-test-cross for alpha
Maintaining two sets of containers for test building is silly. While
it makes sense for the QEMU cross-compile targets to have their own
fat containers built by lcitool we might as well merge the other
random debian based compilers into the same one used on gitlab.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-7-alex.bennee@linaro.org>
2023-10-31 13:28:30 +00:00
Alex Bennée
cb8715bf0c gitlab: add build-loongarch to matrix
We have the compiler and with a few updates a container that can build
QEMU so we should at least run the check-tcg smoke tests.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-6-alex.bennee@linaro.org>
2023-10-31 13:28:30 +00:00
Alex Bennée
aa39c4c098 gitlab: split alpha testing into a legacy container
The current bookworm compiler doesn't build the static binaries due to
bug #1054412 and it might be awhile before it gets fixed. The problem
of keeping older architecture compilers running isn't going to go away
so lets prepare the ground. Create a legacy container and move some
tests around so the others can get upgraded.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231029145033.592566-4-alex.bennee@linaro.org>
2023-10-31 13:28:25 +00:00
Paolo Bonzini
a5e3cb3b90 tests/docker: avoid invalid escape in Python string
This is an error in Python 3.12; fix it by using a raw string literal.

Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-10-17 15:20:53 +02:00
John Snow
19a39e270b Python: Enable python3.12 support
Python 3.12 has released, so update the test infrastructure to test
against this version. Update the configure script to look for it when an
explicit Python interpreter isn't chosen.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-id: 20231006195243.3131140-5-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2023-10-11 16:02:34 -04:00
Alex Bennée
c691925092 tests/docker: make docker engine choice entirely configure driven
Since 0b1a649047 (tests/docker: use direct RUNC call to build
containers) we ended up with the potential for the remaining docker.py
script calls to deviate from the direct RUNC calls. Fix this by
dropping the use of ENGINE in the makefile and rely entirely on what
we detect at configure time.

We also tweak the RUNC detection so podman users can still run things
from the source tree.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20231009164104.369749-6-alex.bennee@linaro.org>
2023-10-11 08:46:33 +01:00
Alex Bennée
3e3df0d84f tests/lcitool: add swtpm to the package list
We need this to test some TPM stuff.

Reviewed-by: "Daniel P. Berrangé" <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231009164104.369749-4-alex.bennee@linaro.org>
2023-10-11 08:46:23 +01:00
Richard Henderson
232ce1eb90 tests/docker: Update docker-loongarch-cross toolchain
Update from clfs 5.0 to clfs 8.1, which includes updates
to binutils 2.41, gcc 13.2, and glibc 2.38.

See https://github.com/loongson/build-tools

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230829220228.928506-2-richard.henderson@linaro.org>
Message-Id: <20230914155422.426639-4-alex.bennee@linaro.org>
2023-09-20 15:06:33 +01:00
Alex Bennée
ca9cde57ab tests: update most Debian images to Bookworm
Bookworm has been out a while now. Time to update our containers to
the current stable. This requires the latest lcitool repo so update
the sub-module too.

For some reason the MIPs containers won't build so skip those for now.
We also have to skip the armel builds due to a stuck libc update.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230914155422.426639-2-alex.bennee@linaro.org>
2023-09-20 15:06:26 +01:00
Ilya Maximets
cb039ef3d9 net: add initial support for AF_XDP network backend
AF_XDP is a network socket family that allows communication directly
with the network device driver in the kernel, bypassing most or all
of the kernel networking stack.  In the essence, the technology is
pretty similar to netmap.  But, unlike netmap, AF_XDP is Linux-native
and works with any network interfaces without driver modifications.
Unlike vhost-based backends (kernel, user, vdpa), AF_XDP doesn't
require access to character devices or unix sockets.  Only access to
the network interface itself is necessary.

This patch implements a network backend that communicates with the
kernel by creating an AF_XDP socket.  A chunk of userspace memory
is shared between QEMU and the host kernel.  4 ring buffers (Tx, Rx,
Fill and Completion) are placed in that memory along with a pool of
memory buffers for the packet data.  Data transmission is done by
allocating one of the buffers, copying packet data into it and
placing the pointer into Tx ring.  After transmission, device will
return the buffer via Completion ring.  On Rx, device will take
a buffer form a pre-populated Fill ring, write the packet data into
it and place the buffer into Rx ring.

AF_XDP network backend takes on the communication with the host
kernel and the network interface and forwards packets to/from the
peer device in QEMU.

Usage example:

  -device virtio-net-pci,netdev=guest1,mac=00:16:35:AF:AA:5C
  -netdev af-xdp,ifname=ens6f1np1,id=guest1,mode=native,queues=1

XDP program bridges the socket with a network interface.  It can be
attached to the interface in 2 different modes:

1. skb - this mode should work for any interface and doesn't require
         driver support.  With a caveat of lower performance.

2. native - this does require support from the driver and allows to
            bypass skb allocation in the kernel and potentially use
            zero-copy while getting packets in/out userspace.

By default, QEMU will try to use native mode and fall back to skb.
Mode can be forced via 'mode' option.  To force 'copy' even in native
mode, use 'force-copy=on' option.  This might be useful if there is
some issue with the driver.

Option 'queues=N' allows to specify how many device queues should
be open.  Note that all the queues that are not open are still
functional and can receive traffic, but it will not be delivered to
QEMU.  So, the number of device queues should generally match the
QEMU configuration, unless the device is shared with something
else and the traffic re-direction to appropriate queues is correctly
configured on a device level (e.g. with ethtool -N).
'start-queue=M' option can be used to specify from which queue id
QEMU should start configuring 'N' queues.  It might also be necessary
to use this option with certain NICs, e.g. MLX5 NICs.  See the docs
for examples.

In a general case QEMU will need CAP_NET_ADMIN and CAP_SYS_ADMIN
or CAP_BPF capabilities in order to load default XSK/XDP programs to
the network interface and configure BPF maps.  It is possible, however,
to run with no capabilities.  For that to work, an external process
with enough capabilities will need to pre-load default XSK program,
create AF_XDP sockets and pass their file descriptors to QEMU process
on startup via 'sock-fds' option.  Network backend will need to be
configured with 'inhibit=on' to avoid loading of the program.
QEMU will need 32 MB of locked memory (RLIMIT_MEMLOCK) per queue
or CAP_IPC_LOCK.

There are few performance challenges with the current network backends.

First is that they do not support IO threads.  This means that data
path is handled by the main thread in QEMU and may slow down other
work or may be slowed down by some other work.  This also means that
taking advantage of multi-queue is generally not possible today.

Another thing is that data path is going through the device emulation
code, which is not really optimized for performance.  The fastest
"frontend" device is virtio-net.  But it's not optimized for heavy
traffic either, because it expects such use-cases to be handled via
some implementation of vhost (user, kernel, vdpa).  In practice, we
have virtio notifications and rcu lock/unlock on a per-packet basis
and not very efficient accesses to the guest memory.  Communication
channels between backend and frontend devices do not allow passing
more than one packet at a time as well.

Some of these challenges can be avoided in the future by adding better
batching into device emulation or by implementing vhost-af-xdp variant.

There are also a few kernel limitations.  AF_XDP sockets do not
support any kinds of checksum or segmentation offloading.  Buffers
are limited to a page size (4K), i.e. MTU is limited.  Multi-buffer
support implementation for AF_XDP is in progress, but not ready yet.
Also, transmission in all non-zero-copy modes is synchronous, i.e.
done in a syscall.  That doesn't allow high packet rates on virtual
interfaces.

However, keeping in mind all of these challenges, current implementation
of the AF_XDP backend shows a decent performance while running on top
of a physical NIC with zero-copy support.

Test setup:

2 VMs running on 2 physical hosts connected via ConnectX6-Dx card.
Network backend is configured to open the NIC directly in native mode.
The driver supports zero-copy.  NIC is configured to use 1 queue.

Inside a VM - iperf3 for basic TCP performance testing and dpdk-testpmd
for PPS testing.

iperf3 result:
 TCP stream      : 19.1 Gbps

dpdk-testpmd (single queue, single CPU core, 64 B packets) results:
 Tx only         : 3.4 Mpps
 Rx only         : 2.0 Mpps
 L2 FWD Loopback : 1.5 Mpps

In skb mode the same setup shows much lower performance, similar to
the setup where pair of physical NICs is replaced with veth pair:

iperf3 result:
  TCP stream      : 9 Gbps

dpdk-testpmd (single queue, single CPU core, 64 B packets) results:
  Tx only         : 1.2 Mpps
  Rx only         : 1.0 Mpps
  L2 FWD Loopback : 0.7 Mpps

Results in skb mode or over the veth are close to results of a tap
backend with vhost=on and disabled segmentation offloading bridged
with a NIC.

Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> (docker/lcitool)
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18 14:36:13 +08:00
Ilya Maximets
a6f376e9ba tests: bump libvirt-ci for libasan and libxdp
This pulls in the fixes for libasan version as well as support for
libxdp that will be used for af-xdp netdev in the next commits.

Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-09-18 14:36:13 +08:00
Michael Tokarev
96420a30e0 tests/: spelling fixes
with some rewording in
 tests/qemu-iotests/298
 tests/qtest/fuzz/generic_fuzz.c
 tests/unit/test-throttle.c
as suggested by Eric.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Eric Blake <eblake@redhat.com>
2023-09-08 13:08:52 +03:00
Alex Bennée
6445c2cace tests/docker: cleanup non-verbose output
Even with --quiet docker will spam the sha256 to the console. Avoid
this by redirecting stdout. While we are at it fix the name we echo
which was broken during 0b1a649047 (tests/docker: use direct RUNC call
to build containers).

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230829161528.2707696-3-alex.bennee@linaro.org>
2023-08-30 14:57:44 +01:00
Daniel P. Berrangé
2f7350cd43 gitlab: enable ccache for many build jobs
The `ccache` tool can be very effective at reducing compilation times
when re-running pipelines with only minor changes each time. For example
a fresh 'build-system-fedora' job will typically take 20 minutes on the
gitlab.com shared runners. With ccache this is reduced to as little as
6 minutes.

Normally meson would auto-detect existance of ccache in $PATH and use
it automatically, but the way we wrap meson from configure breaks this,
as we're passing in an config file with explicitly set compiler paths.
Thus we need to add $CCACHE_WRAPPERSPATH to the front of $PATH. For
unknown reasons if doing this in msys though, gcc becomes unable to
invoke 'cc1' when run from meson. For msys we thus set CC='ccache gcc'
before invoking 'configure' instead.

A second problem with msys is that cache misses are incredibly
expensive, so enabling ccache massively slows down the build when
the cache isn't well populated. This is suspected to be a result of
the cost of spawning processes under the msys architecture. To deal
with this we set CCACHE_DEPEND=1 which enables ccache's 'depend_only'
strategy. This avoids extra spawning of the pre-processor during
cache misses, with the downside that is it less likely ccache will
find a cache hit after semantically benign compiler flag changes.
This is the lesser of two evils, as otherwise we can't use ccache
at all under msys and remain inside the job time limit.

If people are finding ccache to hurt their pipelines, it can be
disabled by setting the 'CCACHE_DISABLE=1' env variable against
their gitlab fork CI settings.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230804111054.281802-2-berrange@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230829161528.2707696-2-alex.bennee@linaro.org>
2023-08-30 14:57:33 +01:00
Paolo Bonzini
7ace219303 tests/docker: add python3-tomli dependency to containers
Instead of having CI pick tomli from the vendored wheel at configure
time, place it in the containers.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-28 09:55:48 +02:00
Paolo Bonzini
dcb8541b0b lcitool: bump libvirt-ci submodule and regenerate
This brings in a newer version of the pipewire mapping, so rename it.

Python 3.9 and 3.10 do not seem to work in OpenSUSE LEAP 15.5 (weird,
because 3.9 persisted from 15.3 to 15.4) so bump the Python runtime
version to 3.11.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-28 09:55:47 +02:00
Paolo Bonzini
87f77f58d8 dockerfiles: bump tricore cross compiler container to Debian 11
With the release of version 12 on June 10, 2023, Debian 10 is
not supported anymore.  Modify the cross compiler container to
build on a newer version.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-08-28 09:55:05 +02:00
Marc-André Lureau
62259d816c tests/lcitool: add pipewire
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230506163735.3481387-3-marcandre.lureau@redhat.com>
2023-07-17 15:22:56 +04:00
Alex Bennée
0101dd71b0 tests/docker: convert riscv64-cross to lcitool
We still need to base this on Debian Sid until riscv64 is promoted to
a release architecture (or another distro provides a full cross
compile target). We use the new qemu-minimal project description to
avoid bringing in all the extra dependencies because every extra
package is another chance for sid to fail.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-16-alex.bennee@linaro.org>
2023-07-03 12:51:53 +01:00
Alex Bennée
690be80412 tests/lcitool: add an explicit gcc-native package
We need a native compiler to build the hexagon codegen tools. In our
current images we already have a gcc as a side effect of a broken
dependency between gcovr and lcov but this will be fixed when we move
to bookworm. See
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=987818 for details.

Update the packages while we are at it.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-14-alex.bennee@linaro.org>
2023-07-03 12:51:47 +01:00
Erik Skultety
76eb439c0f tests/lcitool: Bump fedora container versions
Fedora 37 -> 38

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <c9b00e573a7a80fc6ce5c68595382f5c916a9195.1685528076.git.eskultet@redhat.com>
[AJB: Dropped alpine (in prev commit), reflow commit msg]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-13-alex.bennee@linaro.org>
2023-07-03 12:51:40 +01:00
Alex Bennée
c7374742d8 tests/lcitool: update to latest version
We need this for the riscv64 and gcc-native mappings. As the older
alpine release has been dropped from the mappings we also need to bump
the version of alpine we use.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-12-alex.bennee@linaro.org>
2023-07-03 12:51:37 +01:00
Alex Bennée
4ab20b513e tests/docker: add test-fuzz
Running the fuzzer requires some hoop jumping and some problems only
show up in containers. This basically replicates the build-oss-fuzz
job from our CI so we can run in the same containers we use in CI.

Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230630180423.558337-10-alex.bennee@linaro.org>
2023-07-03 12:51:26 +01:00
Paolo Bonzini
a2696204de tests/docker: simplify HOST_ARCH definition
ARCH is always empty, so just define HOST_ARCH as the result of uname.

Acked-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-05-26 10:17:32 +02:00