[Qemu-devel] [PATCH V3 3/3] tests/vhost-user: check vhost-user feature negotiation

[Marcel Apfelbaum <marcel@redhat.com>]

Check the backend receives all declared virtio features
that are also supported by QEMU virtio.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
---
 tests/vhost-user-test.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c
index 228acb6..019b880 100644
--- a/tests/vhost-user-test.c
+++ b/tests/vhost-user-test.c
@@ -17,6 +17,7 @@
 #include "sysemu/sysemu.h"
 
 #include <linux/vhost.h>
+#include <linux/virtio_net.h>
 #include <sys/mman.h>
 #include <sys/vfs.h>
 #include <qemu/sockets.h>
@@ -297,14 +298,26 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
         /* send back features to qemu */
         msg.flags |= VHOST_USER_REPLY_MASK;
         msg.size = sizeof(m.u64);
-        msg.u64 = 0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES;
+        msg.u64 = (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES) |
+                  (0x1ULL << VIRTIO_F_ANY_LAYOUT) |
+                  (0x1ULL << VIRTIO_F_VERSION_1)  |
+                  (0x1ULL << VIRTIO_NET_F_MRG_RXBUF) |
+                  (0x1ULL << VIRTIO_NET_F_MQ);
         p = (uint8_t *) &msg;
         qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
         break;
 
     case VHOST_USER_SET_FEATURES:
-	g_assert_cmpint(msg.u64 & (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES),
-			!=, 0ULL);
+        g_assert_cmpint(msg.u64 & (0x1ULL << VHOST_USER_F_PROTOCOL_FEATURES),
+            !=, 0ULL);
+        g_assert_cmpint(msg.u64 & (0x1ULL << VIRTIO_F_ANY_LAYOUT),
+            !=, 0ULL);
+        g_assert_cmpint(msg.u64 & (0x1ULL << VIRTIO_F_VERSION_1),
+            !=, 0ULL);
+        g_assert_cmpint(msg.u64 & (0x1ULL << VIRTIO_NET_F_MRG_RXBUF),
+            !=, 0ULL);
+        g_assert_cmpint(msg.u64 & (0x1ULL << VIRTIO_NET_F_MQ),
+            !=, 0ULL);
         break;
 
     case VHOST_USER_GET_PROTOCOL_FEATURES:
-- 
2.1.0