Hari Bathini <hbath...@linux.ibm.com> writes: > On 04/09/19 5:00 PM, Michael Ellerman wrote: >> Hari Bathini <hbath...@linux.ibm.com> writes: >>> Firmware uses 32-bit field for region size while copying/backing-up >> >> Which firmware exactly is imposing that limit? > > I think the MDST/MDRT tables in the f/w. Vasant, which component is that? > >>> + /* >>> + * Firmware currently supports only 32-bit value for size, >> >> "currently" implies it could change in future? >> >> If it does we assume it will only increase, and we're happy that old >> kernels will continue to use the 32-bit limit? > > I am not aware of any plans to make it 64-bit. Let me just say f/w supports > only 32-bit to get rid of that ambiguity..
OK. As long as everyone is aware that the kernel has no support for it increasing it, without code changes. cheers