diff options
| author | Eugenio Pérez <eperezma@redhat.com> | 2021-11-25 11:16:13 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-11-28 17:03:52 -0500 |
| commit | 846a1e85da646c6006db429648389fc110f92d75 (patch) | |
| tree | d5d4281bf8e02da2dbb4650e8747e9dc9108135b /net/vhost-vdpa.c | |
| parent | 9323f892b39d133eb69b301484bf7b2f3f49737d (diff) | |
| download | qemu-846a1e85da646c6006db429648389fc110f92d75.zip qemu-846a1e85da646c6006db429648389fc110f92d75.tar.gz qemu-846a1e85da646c6006db429648389fc110f92d75.tar.bz2 | |
vdpa: Add dummy receive callback
Qemu falls back on userland handlers even if vhost-user and vhost-vdpa
cases. These assumes a tap device can handle the packets.
If a vdpa device fail to start, it can trigger a sigsegv because of
that. Add dummy receiver that returns no progress so it can keep
running.
Fixes: 1e0a84ea49 ("vhost-vdpa: introduce vhost-vdpa net client")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20211125101614.76927-2-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'net/vhost-vdpa.c')
| -rw-r--r-- | net/vhost-vdpa.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index 2e3c22a..25dd6dd 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -170,9 +170,17 @@ static bool vhost_vdpa_check_peer_type(NetClientState *nc, ObjectClass *oc, return true; } +/** Dummy receive in case qemu falls back to userland tap networking */ +static ssize_t vhost_vdpa_receive(NetClientState *nc, const uint8_t *buf, + size_t size) +{ + return 0; +} + static NetClientInfo net_vhost_vdpa_info = { .type = NET_CLIENT_DRIVER_VHOST_VDPA, .size = sizeof(VhostVDPAState), + .receive = vhost_vdpa_receive, .cleanup = vhost_vdpa_cleanup, .has_vnet_hdr = vhost_vdpa_has_vnet_hdr, .has_ufo = vhost_vdpa_has_ufo, |