> On Aug 27, 2021, at 1:53 PM, Jag Raman <jag.ra...@oracle.com> wrote:
>
> add the libvfio-user library as a submodule. build it as a cmake
> subproject.
>
> Signed-off-by: Elena Ufimtseva <elena.ufimts...@oracle.com>
> Signed-off-by: John G Johnson <john.g.john...@oracle.com>
> Signed-off-by: Jagannathan Raman <jag.ra...@oracle.com>
> ---
> configure | 11 +++++++++++
> meson.build | 28 ++++++++++++++++++++++++++++
> .gitmodules | 3 +++
> MAINTAINERS | 7 +++++++
> hw/remote/meson.build | 2 ++
> subprojects/libvfio-user | 1 +
> 6 files changed, 52 insertions(+)
> create mode 160000 subprojects/libvfio-user
>
> diff --git a/configure b/configure
> index 9a79a00..794e900 100755
> --- a/configure
> +++ b/configure
> @@ -4291,6 +4291,17 @@ but not implemented on your system"
> fi
>
> ##########################################
> +# check for multiprocess
> +
> +case "$multiprocess" in
> + auto | enabled )
> + if test "$git_submodules_action" != "ignore"; then
> + git_submodules="${git_submodules} libvfio-user"
> + fi
> + ;;
> +esac
> +
> +##########################################
> # End of CC checks
> # After here, no more $cc or $ld runs
>
> diff --git a/meson.build b/meson.build
> index bf63784..2b2d5c2 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -1898,6 +1898,34 @@ if get_option('cfi') and slirp_opt == 'system'
> + ' Please configure with --enable-slirp=git')
> endif
>
> +vfiouser = not_found
> +if have_system and multiprocess_allowed
> + have_internal = fs.exists(meson.current_source_dir() /
> 'subprojects/libvfio-user/Makefile')
> +
> + if not have_internal
> + error('libvfio-user source not found - please pull git submodule')
> + endif
> +
> + json_c = dependency('json-c', required: false)
> + if not json_c.found()
> + json_c = dependency('libjson-c')
> + endif
One of the things we’re wondering is about this json-c package that we need to
build
libvfio-user library.
The gitlab runners typically don’t have this package installed, as such the
gitlab builds
fail. Wondering if there's a way to install this package for all QEMU builds?
We checked out the various jobs defined in “.gitlab-ci.d/buildtest.yml” - there
is a
“before_script” keyword which we could use to install this package. The
“before_script”
keyword appears to be run every time before a job’s script is executed. But
this option
appears to be per job/build. Wondering if there's a distro-independent global
way to
install a required package for all builds.
Thank you!
--
Jag
> +
> + cmake = import('cmake')
> +
> + vfiouser_subproj = cmake.subproject('libvfio-user')
> +
> + vfiouser_sl = vfiouser_subproj.dependency('vfio-user-static')
> +
> + # Although cmake links the json-c library with vfio-user-static
> + # target, that info is not available to meson via cmake.subproject.
> + # As such, we have to separately declare the json-c dependency here.
> + # This appears to be a current limitation of using cmake inside meson.
> + # libvfio-user is planning a switch to meson in the future, which
> + # would address this item automatically.
> + vfiouser = declare_dependency(dependencies: [vfiouser_sl, json_c])
> +endif
> +
> fdt = not_found
> fdt_opt = get_option('fdt')
> if have_system
> diff --git a/.gitmodules b/.gitmodules
> index 08b1b48..cfeea7c 100644
> --- a/.gitmodules
> +++ b/.gitmodules
> @@ -64,3 +64,6 @@
> [submodule "roms/vbootrom"]
> path = roms/vbootrom
> url = https://gitlab.com/qemu-project/vbootrom.git
> +[submodule "subprojects/libvfio-user"]
> + path = subprojects/libvfio-user
> + url = https://github.com/nutanix/libvfio-user.git
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 4039d3c..0c5a18e 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3361,6 +3361,13 @@ F: semihosting/
> F: include/semihosting/
> F: tests/tcg/multiarch/arm-compat-semi/
>
> +libvfio-user Library
> +M: Thanos Makatos <thanos.maka...@nutanix.com>
> +M: John Levon <john.le...@nutanix.com>
> +T: https://github.com/nutanix/libvfio-user.git
> +S: Maintained
> +F: subprojects/libvfio-user/*
> +
> Multi-process QEMU
> M: Elena Ufimtseva <elena.ufimts...@oracle.com>
> M: Jagannathan Raman <jag.ra...@oracle.com>
> diff --git a/hw/remote/meson.build b/hw/remote/meson.build
> index e6a5574..fb35fb8 100644
> --- a/hw/remote/meson.build
> +++ b/hw/remote/meson.build
> @@ -7,6 +7,8 @@ remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true:
> files('remote-obj.c'))
> remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('proxy.c'))
> remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('iohub.c'))
>
> +remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: vfiouser)
> +
> specific_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('memory.c'))
> specific_ss.add(when: 'CONFIG_MULTIPROCESS', if_true:
> files('proxy-memory-listener.c'))
>
> diff --git a/subprojects/libvfio-user b/subprojects/libvfio-user
> new file mode 160000
> index 0000000..647c934
> --- /dev/null
> +++ b/subprojects/libvfio-user
> @@ -0,0 +1 @@
> +Subproject commit 647c9341d2e06266a710ddd075f69c95dd3b8446
> --
> 1.8.3.1
>
