Where is the request from the cache to other device when you need to do a Direct Cache Access

[JunjoFor]

Hi, I find out that by default when you do one migration then you pin the page (mmu.go). I am searching where in the code you find that you need to send a petition to another device to obtain the data. I was searching in cache.go, directory.go. But there is a lot going on and I don't find anything if I search RDMA.

Can you point where in the code you find you need to do a Direct Cache Access? It would be very helpful to me.

Thanks.