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multi-process: Add config option for multi-process QEMU

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Add configuration options to enable or disable multiprocess QEMU code

Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 6cc37253e35418ebd7b675a31a3df6e3c7a12dc1.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Jagannathan Raman 2021-01-29 11:46:05 -05:00 committed by Stefan Hajnoczi
parent 44a4ff31c0
commit 3090de695b
5 changed files with 21 additions and 1 deletions
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4
Kconfig.host
View File

@ -37,3 +37,7 @@ config VIRTFS
config PVRDMA
bool
config MULTIPROCESS_ALLOWED
bool
imply MULTIPROCESS

10
configure vendored
View File

@ -463,6 +463,7 @@ skip_meson=no
gettext="auto"
fuse="auto"
fuse_lseek="auto"
multiprocess="no"
malloc_trim="auto"
@ -797,6 +798,7 @@ Linux)
linux="yes"
linux_user="yes"
vhost_user=${default_feature:-yes}
multiprocess=${default_feature:-yes}
;;
esac
@ -1556,6 +1558,10 @@ for opt do
;;
--disable-fuse-lseek) fuse_lseek="disabled"
;;
--enable-multiprocess) multiprocess="yes"
;;
--disable-multiprocess) multiprocess="no"
;;
*)
echo "ERROR: unknown option $opt"
echo "Try '$0 --help' for more information"
@ -1908,6 +1914,7 @@ disabled with --disable-FEATURE, default is enabled if available
libdaxctl libdaxctl support
fuse FUSE block device export
fuse-lseek SEEK_HOLE/SEEK_DATA support for FUSE exports
multiprocess Multiprocess QEMU support
NOTE: The object files are built at the place where configure is launched
EOF
@ -6082,6 +6089,9 @@ fi
if test "$have_mlockall" = "yes" ; then
echo "HAVE_MLOCKALL=y" >> $config_host_mak
fi
if test "$multiprocess" = "yes" ; then
echo "CONFIG_MULTIPROCESS_ALLOWED=y" >> $config_host_mak
fi
if test "$fuzzing" = "yes" ; then
# If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
# needed CFLAGS have already been provided

1
hw/Kconfig
View File

@ -27,6 +27,7 @@ source pci-host/Kconfig
source pcmcia/Kconfig
source pci/Kconfig
source rdma/Kconfig
source remote/Kconfig
source rtc/Kconfig
source scsi/Kconfig
source sd/Kconfig

3
hw/remote/Kconfig Normal file
View File

@ -0,0 +1,3 @@
config MULTIPROCESS
bool
depends on PCI && KVM

4
meson.build
View File

@ -1226,7 +1226,8 @@ host_kconfig = \
('CONFIG_VHOST_KERNEL' in config_host ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
(have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
('CONFIG_LINUX' in config_host ? ['CONFIG_LINUX=y'] : []) + \
('CONFIG_PVRDMA' in config_host ? ['CONFIG_PVRDMA=y'] : [])
('CONFIG_PVRDMA' in config_host ? ['CONFIG_PVRDMA=y'] : []) + \
('CONFIG_MULTIPROCESS_ALLOWED' in config_host ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : [])
ignored = [ 'TARGET_XML_FILES', 'TARGET_ABI_DIR', 'TARGET_ARCH' ]
@ -2652,6 +2653,7 @@ summary_info += {'libpmem support': config_host.has_key('CONFIG_LIBPMEM')}
summary_info += {'libdaxctl support': config_host.has_key('CONFIG_LIBDAXCTL')}
summary_info += {'libudev': libudev.found()}
summary_info += {'FUSE lseek': fuse_lseek.found()}
summary_info += {'Multiprocess QEMU': config_host.has_key('CONFIG_MULTIPROCESS_ALLOWED')}
summary(summary_info, bool_yn: true, section: 'Dependencies')
if not supported_cpus.contains(cpu)