linux-kernel - Re: [PATCH v4 5/9] vringh: support VA with iotlb

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Message-ID: <ZCWIXZbeWanvPJA3@corigine.com>
Date:   Thu, 30 Mar 2023 15:02:21 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     virtualization@...ts.linux-foundation.org,
        Andrey Zhadchenko <andrey.zhadchenko@...tuozzo.com>,
        Jason Wang <jasowang@...hat.com>, eperezma@...hat.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        kvm@...r.kernel.org, stefanha@...hat.com,
        "Michael S. Tsirkin" <mst@...hat.com>
Subject: Re: [PATCH v4 5/9] vringh: support VA with iotlb

On Fri, Mar 24, 2023 at 04:39:19PM +0100, Stefano Garzarella wrote:
> vDPA supports the possibility to use user VA in the iotlb messages.
> So, let's add support for user VA in vringh to use it in the vDPA
> simulators.
> 
> Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>

...

> +/**
> + * vringh_init_iotlb_va - initialize a vringh for a ring with IOTLB containing
> + *                        user VA.
> + * @vrh: the vringh to initialize.
> + * @features: the feature bits for this ring.
> + * @num: the number of elements.
> + * @weak_barriers: true if we only need memory barriers, not I/O.
> + * @desc: the userpace descriptor pointer.
> + * @avail: the userpace avail pointer.
> + * @used: the userpace used pointer.

nit: s/userpace/userspace/

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