Re: [PATCH RFC v2 1/1] virtio-msg: Add virtio-msg, a message based virtio transport layer

["Alex Bennée" <alex.bennee@linaro.org>]

Bill Mills <bill.mills@linaro.org> writes:

> Add a new transport layer that is based on messages.
>
> This transport layer still uses virtqueues as the other transport layers do
> but implements transport layer operations by sending and receiving messages
> instead of the "MMR" reads and writes used in virtio-mmio and virtio-pci.
>
> This transport is useful when the device and driver are both implemented in
> software but the trap and emulate operations of virtio-mmio and virtio-pci
> can not be used.
>
> This transport is intended to be used in many situations, including:
> * between a host processor and its co-processors
> * between two different systems (not SMP) connected via PCIe
> * between normal and secure worlds
> * host to vm
> * vm to vm
>
> This is an RFC and not yet intended to be merged. There are multiple
> know issues including not conforming to virtio spec standards.
>
> Signed-off-by: Bill Mills <bill.mills@linaro.org>
> Signed-off-by: Bertrand Marquis <bertrand.marquis@arm.com>
> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
> Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>

Ping?

I'll be around at KVM Forum if anyone has any questions about our
use-cases. We've reviewed stuff pretty thoroughly internally but
obviously we need to input from the wider VirtIO community before
proposing a vote.

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro