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vfio-user: build library

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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: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Stefan 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: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Jagannathan Raman 2022-06-13 16:26:24 -04:00 • committed by Stefan Hajnoczi
parent 9b5b473eae
commit 55116968de
12 changed files with 63 additions and 1 deletions
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23
meson.build
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@ -308,6 +308,10 @@ multiprocess_allowed = get_option('multiprocess') \
.require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
.allowed()
vfio_user_server_allowed = get_option('vfio_user_server') \
.require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
.allowed()
have_tpm = get_option('tpm') \
.require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
.allowed()
@ -2380,7 +2384,8 @@ host_kconfig = \
(have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
(have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
(multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : [])
(multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
(vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : [])
ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
@ -2672,6 +2677,21 @@ if have_system
endif
endif
libvfio_user_dep = not_found
if have_system and vfio_user_server_allowed
have_internal = fs.exists(meson.current_source_dir() / 'subprojects/libvfio-user/meson.build')
if not have_internal
error('libvfio-user source not found - please pull git submodule')
endif
libvfio_user_proj = subproject('libvfio-user')
libvfio_user_lib = libvfio_user_proj.get_variable('libvfio_user_dep')
libvfio_user_dep = declare_dependency(dependencies: [libvfio_user_lib])
endif
fdt = not_found
if have_system
fdt_opt = get_option('fdt')
@ -3790,6 +3810,7 @@ summary_info += {'target list': ' '.join(target_dirs)}
if have_system
summary_info += {'default devices': get_option('default_devices')}
summary_info += {'out of process emulation': multiprocess_allowed}
summary_info += {'vfio-user server': vfio_user_server_allowed}
endif
summary(summary_info, bool_yn: true, section: 'Targets and accelerators')