[Qemu-devel] [PATCH 2.1 26/28] configure: add Linux libnuma detection

[Paolo Bonzini <pbonzini@redhat.com>]

From: Wanlong Gao <gaowanlong@cn.fujitsu.com>

Add detection of libnuma (mostly contained in the numactl package)
to the configure script. Can be enabled or disabled on the command
line, default is use if available.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/configure b/configure
index 8ad03ea..585b40c 100755
--- a/configure
+++ b/configure
@@ -303,6 +303,7 @@ tpm="no"
 libssh2=""
 vhdx=""
 quorum="no"
+numa=""
 
 # parse CC options first
 for opt do
@@ -1051,6 +1052,10 @@ for opt do
   ;;
   --enable-quorum) quorum="yes"
   ;;
+  --disable-numa) numa="no"
+  ;;
+  --enable-numa) numa="yes"
+  ;;
   *) echo "ERROR: unknown option $opt"; show_help="yes"
   ;;
   esac
@@ -1310,6 +1315,8 @@ Advanced options (experts only):
   --enable-vhdx            enable support for the Microsoft VHDX image format
   --disable-quorum         disable quorum block filter support
   --enable-quorum          enable quorum block filter support
+  --disable-numa           disable libnuma support
+  --enable-numa            enable libnuma support
 
 NOTE: The object files are built at the place where configure is launched
 EOF
@@ -2983,6 +2990,27 @@ if compile_prog "" "" ; then
 fi
 
 ##########################################
+# libnuma probe
+
+if test "$numa" != "no" ; then
+  numa=no
+  cat > $TMPC << EOF
+#include <numa.h>
+int main(void) { return numa_available(); }
+EOF
+
+  if compile_prog "" "-lnuma" ; then
+    numa=yes
+    libs_softmmu="-lnuma $libs_softmmu"
+  else
+    if test "$numa" = "yes" ; then
+      feature_not_found "linux NUMA (install numactl?)"
+    fi
+    numa=no
+  fi
+fi
+
+##########################################
 # signalfd probe
 signalfd="no"
 cat > $TMPC << EOF
@@ -4045,6 +4073,7 @@ echo "TPM passthrough   $tpm_passthrough"
 echo "QOM debugging     $qom_cast_debug"
 echo "vhdx              $vhdx"
 echo "Quorum            $quorum"
+echo "NUMA host support $numa"
 
 if test "$sdl_too_old" = "yes"; then
 echo "-> Your SDL version is too old - please upgrade to have SDL support"
@@ -4983,6 +5012,10 @@ if [ "$dtc_internal" = "yes" ]; then
   echo "config-host.h: subdir-dtc" >> $config_host_mak
 fi
 
+if test "$numa" = "yes"; then
+  echo "CONFIG_NUMA=y" >> $config_host_mak
+fi
+
 # build tree in object directory in case the source is not in the current directory
 DIRS="tests tests/tcg tests/tcg/cris tests/tcg/lm32 tests/libqos tests/qapi-schema tests/tcg/xtensa tests/qemu-iotests"
 DIRS="$DIRS fsdev"
-- 
1.8.5.3