Stefano Garzarella 6a37a01aba vdpa_sim: fix vringh initialization in vdpasim_queue_ready() ...

[ Upstream commit 794ec498c9 ]

When we initialize vringh, we should pass the features and the
number of elements in the virtqueue negotiated with the driver,
otherwise operations with vringh may fail.

This was discovered in a case where the driver sets a number of
elements in the virtqueue different from the value returned by
.get_vq_num_max().

In vdpasim_vq_reset() is safe to initialize the vringh with
default values, since the virtqueue will not be used until
vdpasim_queue_ready() is called again.

Fixes: 2c53d0f64c ("vdpasim: vDPA device simulator")
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20221110141335.62171-1-sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-01-12 11:59:11 +01:00

..

ifcvf

vdpa/ifcvf: fix the calculation of queuepair

2022-10-05 10:39:43 +02:00

mlx5

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vdpa_sim

vdpa_sim: fix vringh initialization in vdpasim_queue_ready()

2023-01-12 11:59:11 +01:00

vdpa_user

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virtio_pci

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Kconfig

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Makefile

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vdpa.c

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