On 1 September 2015 at 21:27, Gabriel L. Somlo <so...@cmu.edu> wrote: > Right, that's what I'm trying to do -- expose fw_cfg in > /sys/firmware/... on the guest -- which involves figuring out how > to determine if it is present (DT on ARM, blindly poking port 0x510 > on x86 for now, hence my interest in having it listed in ACPI). > > Now, if we did expose fw_cfg in ACPI on *both* ARM and x86, I wonder > I could get away with an ACPI-only detection scheme across both > architectures...
Nope, because there's no requirement for ACPI on ARM -- you could be booting the kernel via device tree. thanks -- PMM
