diff options
| -rw-r--r-- | configure.ac | 44 |
1 files changed, 9 insertions, 35 deletions
diff --git a/configure.ac b/configure.ac index 422c269c..0b609246 100644 --- a/configure.ac +++ b/configure.ac @@ -236,50 +236,24 @@ AC_PATH_PROGS([QEMU],[$with_qemu],[no], test "x$QEMU" = "xno" && AC_MSG_ERROR([qemu must be installed]) AC_DEFINE_UNQUOTED([QEMU],["$QEMU"],[Location of qemu binary.]) -dnl Check that the chosen qemu has vmchannel support or we can -dnl fallback to null vmchannel (still using SLIRP). See the -dnl discussion in the README file. +dnl Check that the chosen qemu has virtio-serial support. if test "x$vmchannel_test" != "xno"; then - AC_MSG_CHECKING([for guestfwd support in $QEMU]) - if $QEMU -nographic --help | grep -sq guestfwd; then + AC_MSG_CHECKING([for virtio-serial support in $QEMU]) + if $QEMU -nographic -device \? 2>&1 | grep -sq virtio-serial; then AC_MSG_RESULT([yes]) vmchannel_guestfwd=guestfwd else AC_MSG_RESULT([no]) - # Note that this test must be conditional on the previous - # test failing. This is because recent qemu will throw - # up an SDL window and hang if we try to run this test. - AC_MSG_CHECKING([for "-net channel" (old guestfwd) support in $QEMU]) - vmchannelout=`$QEMU -nographic -net channel /dev/zero 2>&1 ||:` - echo "vmchannel test command output: $vmchannelout" >&AS_MESSAGE_LOG_FD - if echo "$vmchannelout" | grep -sq "vmchannel wrong port number" ; then - AC_MSG_RESULT([yes]) - vmchannel_guestfwd=net_channel - else - AC_MSG_RESULT([no]) - vmchannel_guestfwd=no - fi - fi - - AC_MSG_CHECKING([for "-net user" (user mode network) support in $QEMU]) - if $QEMU -nographic --help | grep -sq -- "-net user"; then - AC_MSG_RESULT([yes]) - vmchannel_net_user=yes - else - AC_MSG_RESULT([no]) - vmchannel_net_user=no - fi - - if test "x$vmchannel_net_user" = "xno" && test "x$vmchannel_guestfwd" = "xno"; then AC_MSG_FAILURE( -[I did not find user mode network or vmchannel support in +[I did not find virtio-serial support in $QEMU. -Either user mode networking or vmchannel support is vital for -libguestfs to operate. +virtio-serial support in qemu or KVM is essential for libguestfs +to operate. -Please read the relevant section in the README file for more -information about this. +Usually this means that you have to install a newer version of qemu +and/or KVM. Please read the relevant section in the README file for +more information about this. You can override this test by setting the environment variable vmchannel_test=no However if you don't have the right support |