Comment A whole lot of FUD (Score 2) 31
Get ready, you're going to see a whole lot more of this crap. Basically they want SDN but on a whole new level. VM's as you know it are no longer about isolation but how much they can squeeze on a box and more importantly, the ability for the host to see into the VM. Especially in DPDK.
To be clear, from a performance standpoint, writting directly into a vms buffers IS "faster", the problem is there's zero security in it. Also doesn't help the network stack sucks out of the box even in Linux.
Hardware vendors have been trying very hard to bypass the CPU and hide their code in ASICS rather then open it for scrutiny. You need only look at Intel's IME to understand why that is a really, really bad idea.
If the data is entirely yours, go nuts. Otherwise, HELL NO.