I found this gunyah driver from the downstream kernel for Oneplus 12r:
https://github.com/OnePlusOSS/android_kernel_oneplus_sm8550/tree/oneplus_sm8550_t_13.0_oneplus_11/drivers/virt/gunyah
It's very different with the one used in newer deivces, like the one used in Oneplus 13 or other devices. Also it's only used in some devices and it's not common.
Thus it's not compatible with crosvm, and is not usable with AVF.
Is this an driver for an early version of gunyah? Where can I find any docs and example vmms using this driver?
Even the gunyah driver used in qcom BSP seems different with it, and I cannot find any clue of this strange version anywhere.