Doesn't mahāyāna have a classification for jhānas?

Is it me or is it incredibly difficult to find resources [on the 4 (or 8, with the arupas) jhānas](https://en.wikipedia.org/wiki/Dhy%C4%81na_in_Buddhism#The_jh%C4%81nas) and how to reach them in the mahāyāna/vajrayāna literature? Apart from vague references to samādhi in general, I can't find anything. **Edit:** In addition to the suttas, theravādins also have commentaries and books on jhānas, for example the one by Ajahn Brahm... I was looking for a mahāyāna equivalent, too bad :( **Edit 2:** I've found my happiness: https://www.amazon.com/dp/1559393254 Thanks y'all!