On 10/29/21 5:18 AM, Jarkko Sakkinen wrote: > +What: /sys/devices/system/node/nodeX/sgx/size > +Date: October 2021 > +Contact: Jarkko Sakkinen <jarkko@xxxxxxxxxx> I don't think we should do something *entirely* SGX-specific here. The only question to me is whether any non-SGX users want something like this and who they are. Here are some ideas I like more than an "sgx/" directory: /sys/devices/system/node/nodeX/arch/sgx_size /sys/devices/system/node/nodeX/x86/sgx_size /sys/devices/system/node/nodeX/coco/sgx_size There's somebody else *today* who is trying to do something in the same general area: per-node platform-specific memory encryption capabilities: > https://lore.kernel.org/all/20211027195511.207552-6-martin.fernandez@xxxxxxxxxxxxx/ Also, could we please think through how this will look if we add more attributes? I can imagine wanting both: * total SGX memory available * total SGX memory present But those would be quite hard to differentiate if we have just an "sgx_size". Wouldn't it be much nicer to name them things like: sgx_present_bytes sgx_available_bytes ? In other words, can we please try to think just a bit into the future on this one? What other SGX things will we want to export like this? Outside of SGX, who else wants stuff _like_ this?
