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authorMichael S. Tsirkin <mst@redhat.com>2010-03-17 13:08:17 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2010-04-01 13:56:43 -0500
commitd59700553ecbf052cce1e099e8f4dae2704fe424 (patch)
treef0f4d3afd94d374920b450ec14c18775762fcadb /configure
parentade80dc84527ae7418e9fcaf33e09574da0d2b29 (diff)
vhost: vhost net support
This adds vhost net device support in qemu. Will be tied to tap device and virtio by following patches. Raw backend is currently missing, will be worked on/submitted separately. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure37
1 files changed, 37 insertions, 0 deletions
diff --git a/configure b/configure
index 30c6753eb..59a6a8f9f 100755
--- a/configure
+++ b/configure
@@ -263,6 +263,7 @@ vnc_tls=""
vnc_sasl=""
xen=""
linux_aio=""
+vhost_net=""
gprof="no"
debug_tcg="no"
@@ -653,6 +654,10 @@ for opt do
;;
--enable-docs) docs="yes"
;;
+ --disable-vhost-net) vhost_net="no"
+ ;;
+ --enable-vhost-net) vhost_net="yes"
+ ;;
*) echo "ERROR: unknown option $opt"; show_help="yes"
;;
esac
@@ -811,6 +816,8 @@ echo " --disable-blobs disable installing provided firmware blobs"
echo " --kerneldir=PATH look for kernel includes in PATH"
echo " --enable-docs enable documentation build"
echo " --disable-docs disable documentation build"
+echo " --disable-vhost-net disable vhost-net acceleration support"
+echo " --enable-vhost-net enable vhost-net acceleration support"
echo ""
echo "NOTE: The object files are built at the place where configure is launched"
exit 1
@@ -1503,6 +1510,32 @@ EOF
fi
##########################################
+# test for vhost net
+
+if test "$vhost_net" != "no"; then
+ if test "$kvm" != "no"; then
+ cat > $TMPC <<EOF
+ #include <linux/vhost.h>
+ int main(void) { return 0; }
+EOF
+ if compile_prog "$kvm_cflags" "" ; then
+ vhost_net=yes
+ else
+ if test "$vhost_net" = "yes" ; then
+ feature_not_found "vhost-net"
+ fi
+ vhost_net=no
+ fi
+ else
+ if test "$vhost_net" = "yes" ; then
+ echo -e "NOTE: vhost-net feature requires KVM (--enable-kvm)."
+ feature_not_found "vhost-net"
+ fi
+ vhost_net=no
+ fi
+fi
+
+##########################################
# pthread probe
PTHREADLIBS_LIST="-lpthread -lpthreadGC2"
@@ -1988,6 +2021,7 @@ echo "fdt support $fdt"
echo "preadv support $preadv"
echo "fdatasync $fdatasync"
echo "uuid support $uuid"
+echo "vhost-net support $vhost_net"
if test $sdl_too_old = "yes"; then
echo "-> Your SDL version is too old - please upgrade to have SDL support"
@@ -2522,6 +2556,9 @@ case "$target_arch2" in
if test "$kvm_para" = "yes"; then
echo "CONFIG_KVM_PARA=y" >> $config_target_mak
fi
+ if test $vhost_net = "yes" ; then
+ echo "CONFIG_VHOST_NET=y" >> $config_target_mak
+ fi
fi
esac
if test "$target_bigendian" = "yes" ; then