libvirt/m4/virt-driver-libxl.m4
Jim Fehlig 5bdcef13d1 libxl: drop support for Xen < 4.6
Currently the libxl driver claims support for Xen >= 4.4, but
Xen 4.4 and 4.5 are no longer supported upstream. Let's increase
the minimum supported Xen version to 4.6 and change the defined
LIBXL_API_VERSION to 0x040500, which is the API version defined
when Xen 4.6 was released.

Since Xen 4.6 contains a pkgconfig file, drop the now unused code
that falls back to using LIBVIRT_CHECK_LIB in the absence of
pkgconfig file. In addition, bumping the LIBXL_API_VERSION
required adjusting the calls to libxl_set_vcpuaffinity to account
for the extra parameter in the 0x040500 version of the API.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-09-14 11:47:08 -06:00

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dnl The libxl driver
dnl
dnl Copyright (C) 2016 Red Hat, Inc.
dnl
dnl This library is free software; you can redistribute it and/or
dnl modify it under the terms of the GNU Lesser General Public
dnl License as published by the Free Software Foundation; either
dnl version 2.1 of the License, or (at your option) any later version.
dnl
dnl This library is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl Lesser General Public License for more details.
dnl
dnl You should have received a copy of the GNU Lesser General Public
dnl License along with this library. If not, see
dnl <http://www.gnu.org/licenses/>.
dnl
AC_DEFUN([LIBVIRT_DRIVER_ARG_LIBXL], [
LIBVIRT_ARG_WITH_FEATURE([LIBXL], [libxenlight], [check])
])
AC_DEFUN([LIBVIRT_DRIVER_CHECK_LIBXL], [
LIBXL_LIBS=""
LIBXL_CFLAGS=""
LIBXL_FIRMWARE_DIR=""
LIBXL_EXECBIN_DIR=""
LIBXL_API_VERSION="-DLIBXL_API_VERSION=0x040500"
dnl search for libxl, aka libxenlight
LIBVIRT_CHECK_PKG([LIBXL], [xenlight], [4.6.0])
if test "x$with_libxl" = "xyes" ; then
LIBXL_FIRMWARE_DIR=$($PKG_CONFIG --variable xenfirmwaredir xenlight)
LIBXL_EXECBIN_DIR=$($PKG_CONFIG --variable libexec_bin xenlight)
old_LIBS="$LIBS"
old_CFLAGS="$CFLAGS"
LIBXL_CFLAGS="$LIBXL_CFLAGS $LIBXL_API_VERSION"
dnl If building with libxl, use the libxl utility header and lib too
AC_CHECK_HEADERS([libxlutil.h])
LIBXL_LIBS="$LIBXL_LIBS -lxlutil"
if test "x$LIBXL_FIRMWARE_DIR" != "x"; then
AC_DEFINE_UNQUOTED([LIBXL_FIRMWARE_DIR], ["$LIBXL_FIRMWARE_DIR"], [directory containing Xen firmware blobs])
fi
if test "x$LIBXL_EXECBIN_DIR" != "x"; then
AC_DEFINE_UNQUOTED([LIBXL_EXECBIN_DIR], ["$LIBXL_EXECBIN_DIR"], [directory containing Xen libexec binaries])
fi
dnl Check if the xtl_* infrastructure is in libxentoollog
dnl (since Xen 4.7) if not then assume it is in libxenctrl
dnl (as it was for 4.6 and earler)
AC_CHECK_LIB([xentoollog], [xtl_createlogger_stdiostream], [
LIBXL_LIBS="$LIBXL_LIBS -lxenstore -lxentoollog"
],[
LIBXL_LIBS="$LIBXL_LIBS -lxenstore -lxenctrl"
])
dnl Check if libxl_domain_config_from_json is available for domXML to
dnl libxl_domain_config tests
LIBS="$LIBS -lxenlight -lxenctrl"
AC_CHECK_FUNCS([libxl_domain_config_from_json])
CFLAGS="$old_CFLAGS"
LIBS="$old_LIBS"
fi
AC_SUBST([LIBXL_CFLAGS])
AC_SUBST([LIBXL_LIBS])
])
AC_DEFUN([LIBVIRT_RESULT_LIBXL], [
LIBVIRT_RESULT_LIB([LIBXL])
])
AC_DEFUN([LIBVIRT_DRIVER_RESULT_LIBXL], [
LIBVIRT_RESULT([libxl], [$with_libxl])
])