On Monday 07 Dec 2020 at 13:40:52 (+0000), Will Deacon wrote: > Why not use the RESERVEDMEM_OF_DECLARE() interface for the hypervisor > memory? That way, the hypervisor memory can either be statically partitioned > as a carveout or allocated dynamically for us -- we wouldn't need to care. Yup, I did consider that, but the actual amount of memory we need to reserve for the hypervisor depends on things such as the size of struct hyp_page, which depends on the kernel you're running (that is, it might change over time). So, that really felt like something the kernel should be doing, to keep the DT backward compatible, ... Or did you have something more elaborate in mind? Thanks, Quentin
