linux-kernel - Re: [PATCH net-next 0/2] vsock/virtio: add support for device suspend/resume

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Message-ID: <20220502180554-mutt-send-email-mst@kernel.org>
Date:   Mon, 2 May 2022 18:20:51 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     netdev@...r.kernel.org, Stefan Hajnoczi <stefanha@...hat.com>,
        Jason Wang <jasowang@...hat.com>, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Vilas R K <vilas.r.k@...el.com>,
        linux-kernel@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>
Subject: Re: [PATCH net-next 0/2] vsock/virtio: add support for device
 suspend/resume

On Thu, Apr 28, 2022 at 03:22:39PM +0200, Stefano Garzarella wrote:
> Vilas reported that virtio-vsock no longer worked properly after
> suspend/resume (echo mem >/sys/power/state).
> It was impossible to connect to the host and vice versa.
> 
> Indeed, the support has never been implemented.
> 
> This series implement .freeze and .restore callbacks of struct virtio_driver
> to support device suspend/resume.
> 
> The first patch factors our the code to initialize and delete VQs.
> The second patch uses that code to support device suspend/resume.
> 
> Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>


Acked-by: Michael S. Tsirkin <mst@...hat.com>

> Stefano Garzarella (2):
>   vsock/virtio: factor our the code to initialize and delete VQs
>   vsock/virtio: add support for device suspend/resume
> 
>  net/vmw_vsock/virtio_transport.c | 197 ++++++++++++++++++++-----------
>  1 file changed, 131 insertions(+), 66 deletions(-)
> 
> -- 
> 2.35.1