All supported versions of Fedora and RHEL >= 9.0 support
/dev/userfaultfd.
Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
---
libvirt.spec.in | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/libvirt.spec.in b/libvirt.spec.in
index 8413e3c19a..6701f7b6e9 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -90,6 +90,7 @@
# Other optional features
%define with_numactl 0%{!?_without_numactl:1}
+%define with_userfaultfd_sysctl 0%{!?_without_userfaultfd_sysctl:1}
# A few optional bits off by default, we enable later
%define with_fuse 0
@@ -246,6 +247,12 @@
%define enable_werror -Dwerror=false -Dgit_werror=disabled
%endif
+# Fedora and RHEL-9 are new enough to support /dev/userfaultfd, which
+# does not require enabling vm.unprivileged_userfaultfd sysctl.
+%if 0%{?fedora} || 0%{?rhel} >= 9
+ %define with_userfaultfd_sysctl 0
+%endif
+
%define tls_priority "@LIBVIRT,SYSTEM"
# libvirt 8.1.0 stops distributing any sysconfig files.
@@ -1276,6 +1283,12 @@ exit 1
%define arg_remote_mode -Dremote_default_mode=legacy
%endif
+%if %{with_userfaultfd_sysctl}
+ %define arg_userfaultfd_sysctl -Duserfaultfd_sysctl=enabled
+%else
+ %define arg_userfaultfd_sysctl -Duserfaultfd_sysctl=disabled
+%endif
+
%define when %(date +"%%F-%%T")
%define where %(hostname)
%define who %{?packager}%{!?packager:Unknown}
@@ -1355,6 +1368,7 @@ export SOURCE_DATE_EPOCH=$(stat --printf='%Y' %{_specdir}/libvirt.spec)
-Dqemu_moddir=%{qemu_moddir} \
-Dqemu_datadir=%{qemu_datadir} \
-Dtls_priority=%{tls_priority} \
+ %{?arg_userfaultfd_sysctl} \
%{?enable_werror} \
-Dexpensive_tests=enabled \
-Dinit_script=systemd \
@@ -2211,7 +2225,9 @@ exit 0
%if %{with_qemu}
%files daemon-driver-qemu
%config(noreplace) %{_sysconfdir}/libvirt/virtqemud.conf
+ %if %{with_userfaultfd_sysctl}
%config(noreplace) %{_prefix}/lib/sysctl.d/60-qemu-postcopy-migration.conf
+ %endif
%{_datadir}/augeas/lenses/virtqemud.aug
%{_datadir}/augeas/lenses/tests/test_virtqemud.aug
%{_unitdir}/virtqemud.service
--
2.43.0
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