On Fri, 2022-06-10 at 17:35 +0300, Kirill A. Shutemov wrote: > Linear Address Masking[1] (LAM) modifies the checking that is applied > to > 64-bit linear addresses, allowing software to use of the untranslated > address bits for metadata. > > The patchset brings support for LAM for userspace addresses. Arm has this documentation about which memory operations support being passed tagged pointers, and which do not: Documentation/arm64/tagged-address-abi.rst Is the idea that LAM would have something similar, or exactly mirror the arm ABI? It seems like it is the same right now. Should the docs be generalized?
