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Subject: Re: [virtio-dev] Memory sharing device

On Wed, Feb 06, 2019 at 07:09:36AM -0800, Frank Yang wrote:
> I've looked at virtio-vsock and it seems general, but requires Unix
> sockets, which is not going to work for us on Windows and not going to work
> as expected on macOS (most likely). Is there anything that is similar to
> and as portable as goldfish pipe which is more like a raw virtqueue? This
> would then work on memory in the same process, with callbacks registered to
> trigger upon transmission.

virtio-vsock is independent of UNIX domain sockets.  I'm not sure what
you mean here.

I think Linaro implemented virtio-vsock inside QEMU for the Android
emulator but I'm not sure how far they got.  Today virtio-vsock relies
on a Linux host machine because the vhost_vsock.ko driver is used to
integrate into the host network stack.  The Linaro implementation moved
that into QEMU userspace (with the drawback that socket(AF_VSOCK) no
longer works on the host and you need to talk to QEMU instead).


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