On 21.08.2025 17:25, Teddy Astie wrote: > FastABI is a alternative ABI designed with performance and coco-enabled > guest in mind. It is register-oriented instead of refering to C structures > in the guest memory (through a virtual memory pointer). > > It only focuses on kernel-side hypercalls, it doesn't aim to provide toolstack > operations.
And even there it excludes certain pretty relevant ones, like many of the gnttabop sub-ops. As alluded to by a reply to an earlier patch, I don't think having an ABI for just a subset of the hypercalls is going to help. Jan
