On Wed, 2019-01-23 at 21:30 +1100, Paul Mackerras wrote: > > Afaik bcs we change the mapping to point to the real HW irq ESB page > > instead of the "IPI" that was there at VM init time. > > So that makes it sound like there is a whole lot going on that hasn't > even been hinted at in the patch descriptions... It sounds like we > need a good description of how all this works and fits together > somewhere under Documentation/. > > In any case we need much more informative patch descriptions. I > realize that it's all currently in Cedric's head, but I bet that in > two or three years' time when we come to try to debug something, it > won't be in anyone's head... The main problem is understanding XIVE itself. It's not realistic to ask Cedric to write a proper documentation for XIVE as part of the patch series, but sadly IBM doesn't have a good one to provide either. Ben.
