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build: Add userfaultfd_sysctl build option 

This option controls whether the sysctl config for enabling unprivileged
userfaultfd will be installed.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Jiri Denemark 2024-02-09 15:20:58 +01:00
parent 66643931e7
commit 2a6799fd43
3 changed files with 10 additions and 1 deletions
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8
meson.build
View File

@ -2019,6 +2019,12 @@ elif get_option('sysctl_config').enabled()
error('sysctl configuration is supported only on linux')
endif
if not get_option('userfaultfd_sysctl').disabled() and conf.has('WITH_SYSCTL')
conf.set('WITH_USERFAULTFD_SYSCTL', 1)
elif get_option('userfaultfd_sysctl').enabled()
error('userfaultfd_sysctl option requires sysctl_config to be enabled')
endif
conf.set_quoted('TLS_PRIORITY', get_option('tls_priority'))
@ -2318,6 +2324,8 @@ misc_summary = {
'virt-login-shell': conf.has('WITH_LOGIN_SHELL'),
'virt-host-validate': conf.has('WITH_HOST_VALIDATE'),
'TLS priority': conf.get_unquoted('TLS_PRIORITY'),
'sysctl config': conf.has('WITH_SYSCTL'),
'userfaultfd sysctl': conf.has('WITH_USERFAULTFD_SYSCTL'),
}
summary(misc_summary, section: 'Miscellaneous', bool_yn: true, list_sep: ' ')

1
meson_options.txt
View File

@ -108,4 +108,5 @@ option('nbdkit', type: 'feature', value: 'auto', description: 'Build nbdkit stor
option('nbdkit_config_default', type: 'feature', value: 'auto', description: 'Whether to use nbdkit storage backend for network disks by default (configurable)')
option('pm_utils', type: 'feature', value: 'auto', description: 'use pm-utils for power management')
option('sysctl_config', type: 'feature', value: 'auto', description: 'Whether to install sysctl configs')
option('userfaultfd_sysctl', type: 'feature', value: 'auto', description: 'Whether to install sysctl config for enabling unprivileged userfaultfd')
option('tls_priority', type: 'string', value: 'NORMAL', description: 'set the default TLS session priority string')

2
src/qemu/meson.build
View File

@ -209,7 +209,7 @@ if conf.has('WITH_QEMU')
'in_file': files('virtqemud.init.in'),
}
if conf.has('WITH_SYSCTL')
if conf.has('WITH_USERFAULTFD_SYSCTL')
install_data(
'postcopy-migration.sysctl',
install_dir: prefix / 'lib' / 'sysctl.d',