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 <m...@tls.msk.ru>
---
hw/vhost_net.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
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;
}
--
1.7.2.5
