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  1. Feb 27, 2023
    • John Snow's avatar
      meson: stop looking for 'sphinx-build-3' · 1b1be8d3
      John Snow authored 
      
Once upon a time, "sphinx-build" on certain RPM platforms invoked
specifically a Python 2.x version, while "sphinx-build-3" was a distro
shim for the Python 3.x version.

These days, none of our supported platforms utilize a 2.x version, and
those that still have 'sphinx-build-3' make it a symbolic link to
'sphinx-build'.  Not searching for 'sphinx-build-3' will prefer
pip/venv installed versions of sphinx if they're available.

This adds an extremely convenient ability to test document building
ability in QEMU across multiple versions of Sphinx for the purposes of
compatibility testing.

Signed-off-by: default avatarJohn Snow <jsnow@redhat.com>
Message-Id: <20230221012456.2607692-6-jsnow@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      1b1be8d3
  3. Feb 16, 2023
  5. Feb 14, 2023
  7. Feb 11, 2023
  9. Dec 16, 2022
  11. Nov 23, 2022
  13. Oct 26, 2022
    • Stefan Hajnoczi's avatar
      blkio: add libblkio block driver · fd66dbd4
      Stefan Hajnoczi authored 
      libblkio (https://gitlab.com/libblkio/libblkio/

) is a library for
high-performance disk I/O. It currently supports io_uring,
virtio-blk-vhost-user, and virtio-blk-vhost-vdpa with additional drivers
under development.

One of the reasons for developing libblkio is that other applications
besides QEMU can use it. This will be particularly useful for
virtio-blk-vhost-user which applications may wish to use for connecting
to qemu-storage-daemon.

libblkio also gives us an opportunity to develop in Rust behind a C API
that is easy to consume from QEMU.

This commit adds io_uring, nvme-io_uring, virtio-blk-vhost-user, and
virtio-blk-vhost-vdpa BlockDrivers to QEMU using libblkio. It will be
easy to add other libblkio drivers since they will share the majority of
code.

For now I/O buffers are copied through bounce buffers if the libblkio
driver requires it. Later commits add an optimization for
pre-registering guest RAM to avoid bounce buffers.

The syntax is:

  --blockdev io_uring,node-name=drive0,filename=test.img,readonly=on|off,cache.direct=on|off

  --blockdev nvme-io_uring,node-name=drive0,filename=/dev/ng0n1,readonly=on|off,cache.direct=on

  --blockdev virtio-blk-vhost-vdpa,node-name=drive0,path=/dev/vdpa...,readonly=on|off,cache.direct=on

  --blockdev virtio-blk-vhost-user,node-name=drive0,path=vhost-user-blk.sock,readonly=on|off,cache.direct=on

Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Acked-by: default avatarMarkus Armbruster <armbru@redhat.com>
Reviewed-by: default avatarStefano Garzarella <sgarzare@redhat.com>
Message-id: 20221013185908.1297568-3-stefanha@redhat.com
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
      fd66dbd4
  15. Sep 27, 2022
  17. Sep 26, 2022
    • Thomas Huth's avatar
      Remove the slirp submodule (i.e. compile only with an external libslirp) · 5890258a
      Thomas Huth authored 
      
Since QEMU 7.1 we don't support Ubuntu 18.04 anymore, so the last big
important Linux distro that did not have a pre-packaged libslirp has
been dismissed. All other major distros seem to have a libslirp package
in their distribution already - according to repology.org:

          Fedora 35: 4.6.1
  CentOS 8 (RHEL-8): 4.4.0
          Debian 11: 4.4.0
 OpenSUSE Leap 15.3: 4.3.1
   Ubuntu LTS 20.04: 4.1.0
      FreeBSD Ports: 4.7.0
      NetBSD pkgsrc: 4.7.0
           Homebrew: 4.7.0
        MSYS2 mingw: 4.7.0

The only one that was still missing a libslirp package is OpenBSD - but
the next version (OpenBSD 7.2 which will be shipped in October) is going
to include a libslirp package. Since QEMU 7.2 will be published after
OpenBSD 7.2, we should be fine there, too.

So there is no real urgent need for keeping the slirp submodule in
the QEMU tree anymore. Thus let's drop the slirp submodule now and
rely on the libslirp packages from the distributions instead.

Message-Id: <20220824151122.704946-7-thuth@redhat.com>
Acked-by: default avatarSamuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: default avatarThomas Huth <thuth@redhat.com>
      5890258a
  19. Sep 01, 2022
  21. Jul 13, 2022
  23. Jul 12, 2022
  25. Jun 24, 2022
  27. Jun 15, 2022
    • Jagannathan Raman's avatar
      vfio-user: build library · 55116968
      Jagannathan Raman authored 
      
add the libvfio-user library as a submodule. build it as a meson
subproject.

libvfio-user is distributed with BSD 3-Clause license and
json-c with MIT (Expat) license

Signed-off-by: default avatarElena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: default avatarJohn G Johnson <john.g.johnson@oracle.com>
Signed-off-by: default avatarJagannathan Raman <jag.raman@oracle.com>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Message-id: c2adec87958b081d1dc8775d4aa05c897912f025.1655151679.git.jag.raman@oracle.com

[Changed submodule URL to QEMU's libvfio-user mirror on GitLab. The QEMU
project mirrors its dependencies so that it can provide full source code
even in the event that its dependencies become unavailable. Note that
the mirror repo is manually updated, so please contact me to make newer
libvfio-user commits available. If I become a bottleneck we can set up a
cronjob.

Updated scripts/meson-buildoptions.sh to match the meson_options.txt
change. Failure to do so can result in scripts/meson-buildoptions.sh
being modified by the build system later on and you end up with a dirty
working tree.
--Stefan]

Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
      55116968
  29. Jun 14, 2022
  31. May 18, 2022
  33. May 17, 2022
  35. May 07, 2022
  37. Apr 28, 2022
  39. Apr 27, 2022
  41. Feb 21, 2022