| Message ID | 20110609210519.5BA095288@gandalf.tls.msk.ru |
|---|---|
| State | New |
| Headers | show |
On Thu, Jun 9, 2011 at 9:55 PM, Michael Tokarev <mjt@tls.msk.ru> wrote: > When qemu gets compiled without support of vhost-net, any attempt > to use it fails with a very clear error message: > > qemu-system-x86_64: -netdev ...,vhost=on: vhost-net requested but could not be initialized > > there's absolutely no reason given _why_ it coult not be > initialized, and even strace'ing the process in question > does not reveal any errors. So print a message telling > what's going on. > > Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> > --- > hw/vhost_net.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) This is useful. CCed Michael Tsirkin. Stefan
diff --git a/hw/vhost_net.c b/hw/vhost_net.c index 420e05f..33ba402 100644 --- a/hw/vhost_net.c +++ b/hw/vhost_net.c @@ -15,6 +15,7 @@ #include "virtio-net.h" #include "vhost_net.h" +#include "qemu-error.h" #include "config.h" @@ -197,6 +198,7 @@ void vhost_net_cleanup(struct vhost_net *net) struct vhost_net *vhost_net_init(VLANClientState *backend, int devfd, bool force) { + error_report("vhost-net support is not compiled in"); return NULL; }
When qemu gets compiled without support of vhost-net, any attempt to use it fails with a very clear error message: qemu-system-x86_64: -netdev ...,vhost=on: vhost-net requested but could not be initialized there's absolutely no reason given _why_ it coult not be initialized, and even strace'ing the process in question does not reveal any errors. So print a message telling what's going on. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> --- hw/vhost_net.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)