Re: How to implement message forwarding from one CID to another in vhost driver

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On Tue, May 28, 2024 at 5:41 PM Stefano Garzarella <sgarzare@xxxxxxxxxx> wrote:
> >I think it's either that or implementing virtio-vsock in userspace
> >(https://lore.kernel.org/qemu-devel/30baeb56-64d2-4ea3-8e53-6a5c50999979@xxxxxxxxxx/,
> >search for "To connect host<->guest").
>
> For in this case AF_VSOCK can't be used in the host, right?
> So it's similar to vhost-user-vsock.

Not sure if I understand but in this case QEMU knows which CIDs are
forwarded to the host (either listen on vsock and connect to the host,
or vice versa), so there is no kernel and no VMADDR_FLAG_TO_HOST
involved.

Paolo






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