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tests/qtest: catch unhandled vhost-user messages 

We don't need to action every message but lets document the ones we
are expecting to consume so future tests don't get confused about
unhandled bits.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Message-Id: <20220802095010.3330793-18-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
master
Alex Bennée 2022-08-02 10:50:05 +01:00 committed by Michael S. Tsirkin
parent 30ea13e9d9
commit 20a4127fbd
1 changed files with 43 additions and 0 deletions
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43
tests/qtest/vhost-user-test.c
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@ -358,12 +358,44 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
}
break;
case VHOST_USER_SET_OWNER:
/*
* We don't need to do anything here, the remote is just
* letting us know it is in charge. Just log it.
*/
qos_printf("set_owner: start of session\n");
break;
case VHOST_USER_GET_PROTOCOL_FEATURES:
if (s->vu_ops->get_protocol_features) {
s->vu_ops->get_protocol_features(s, chr, &msg);
}
break;
case VHOST_USER_SET_PROTOCOL_FEATURES:
/*
* We did set VHOST_USER_F_PROTOCOL_FEATURES so its valid for
* the remote end to send this. There is no handshake reply so
* just log the details for debugging.
*/
qos_printf("set_protocol_features: 0x%"PRIx64 "\n", msg.payload.u64);
break;
/*
* A real vhost-user backend would actually set the size and
* address of the vrings but we can simply report them.
*/
case VHOST_USER_SET_VRING_NUM:
qos_printf("set_vring_num: %d/%d\n",
msg.payload.state.index, msg.payload.state.num);
break;
case VHOST_USER_SET_VRING_ADDR:
qos_printf("set_vring_addr: 0x%"PRIx64"/0x%"PRIx64"/0x%"PRIx64"\n",
msg.payload.addr.avail_user_addr,
msg.payload.addr.desc_user_addr,
msg.payload.addr.used_user_addr);
break;
case VHOST_USER_GET_VRING_BASE:
/* send back vring base to qemu */
msg.flags |= VHOST_USER_REPLY_MASK;
@ -428,7 +460,18 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
qemu_chr_fe_write_all(chr, p, VHOST_USER_HDR_SIZE + msg.size);
break;
case VHOST_USER_SET_VRING_ENABLE:
/*
* Another case we ignore as we don't need to respond. With a
* fully functioning vhost-user we would enable/disable the
* vring monitoring.
*/
qos_printf("set_vring(%d)=%s\n", msg.payload.state.index,
msg.payload.state.num ? "enabled" : "disabled");
break;
default:
qos_printf("vhost-user: un-handled message: %d\n", msg.request);
break;
}