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Message-Id: <20231007065547.1028-2-liming.wu@jaguarmicro.com> Date: Sat, 7 Oct 2023 14:55:47 +0800 From: liming.wu@...uarmicro.com To: "Michael S . Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com> Cc: kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Liming Wu <liming.wu@...uarmicro.com> Subject: [PATCH v2 2/2] tools/virtio: Add hints when module is not installed From: Liming Wu <liming.wu@...uarmicro.com> Need to insmod vhost_test.ko before run virtio_test. Give some hints to users. Signed-off-by: Liming Wu <liming.wu@...uarmicro.com> --- tools/virtio/virtio_test.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c index 028f54e6854a..13572a677c35 100644 --- a/tools/virtio/virtio_test.c +++ b/tools/virtio/virtio_test.c @@ -135,6 +135,10 @@ static void vdev_info_init(struct vdev_info* dev, unsigned long long features) dev->buf = malloc(dev->buf_size); assert(dev->buf); dev->control = open("/dev/vhost-test", O_RDWR); + + if (dev->control < 0) + fprintf(stderr, + "Install vhost_test module (/vhost_test/vhost_test.ko) first.\n"); assert(dev->control >= 0); r = ioctl(dev->control, VHOST_SET_OWNER, NULL); assert(r >= 0); -- 2.34.1
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