Comment Re:Windows PCs? (Score 1) 15
Those pretty much do say "use UEFI, look reasonably PC-like"(you don't need to reproduce the utter weirdness of historical x86 peripheral memory mapping under 16MB as though you had genuine parallel ports or anything; but UEFI, ACPI, SMBIOS, device tree); with the BSA and SBSA going into further detail about expected behavior, also mostly aimed at compatibility with PC industry standards along with making authoritative decisions on certain details that you could implement in multiple ways just to add confusion to try to encourage people to not do that, at least not so badly that the HAL can't cover it up.
It's just that, while claiming you do support that and not supporting that is frowned upon, supporting that is optional; unlike some of the ISA stuff where (even if you are licensing a core soft enough to modify) ARM is typically pretty humorless about a given "ARMv8" or whatnot deviating from what "ARMv8" is supposed to mean.
If only because they are working with MS on this, I assume that these Qualcomm ones will be intended for use in BBR and BSAS compliant-ish systems; thought that wouldn't necessarily preclude heavily pro-Redmond secure boot default keying or something; but there is no cavalry coming for embedded ARM stuff in general being a pain.