On Tue, Jul 06, 2021 at 07:56:40AM -0700, Dave Hansen wrote: > On 7/5/21 7:36 AM, Jarkko Sakkinen wrote: > > Create /sys/kernel/debug/x86/sgx_nr_all_pages, which reports total > > number of EPC pages available in the system. > Could we flesh this out a bit, please? > > What's the value here when userspace could just re-enumerate the EPC > size from CPUID? > > I'd really appreciate if we could draw parallels between these additions > to the "SGX VM" and their analogs in the "core VM". In this case, I > think the closest analog is probably "MemTotal" in /proc/meminfo. > > Second, how is this going to be used? > > Third, is this going to be the ABI forever? debugfs is never a stable abi. If it is being used as such, then the kernel code is wrong. This better just be debugging stuff only. thanks, greg k-h
