On 5/29/24 11:32 AM, David Christensen wrote:
IBM POWER systems support more than one type of memory management unit (MMU). The Power ISA 3.0 specification, which applies to P9 and later CPUs, defined a new Radix MMU which, among other things, allows an anonymous memory page mapping to be converted into a hugepage mapping at a specific address. This is a required feature in DPDK so we need to test the MMU type when POWER systems are used and provide a more useful error message for the user when running on an unsupported system such as P8/P9 on PowerVM. All architectures other than ppc64le unconditionally report that the MMU is supported. When running with ppc64le on Linux, the MMU is tested and the actual result is returned, while running with ppc64le on FreeBSD unconditionally reports that the MMU is supported to avoid unnecessary breakage until an actual test can be implemented for that environment (i.e. keeps existing behavior without the patch). Bugzilla ID: 1221
Any chance I'll receive a review for this patch in this release cycle or should I go ahead and mark the Bugzilla as will not address?
Dave
