On Fri, Jun 10, 2022 at 05:35:25PM +0300, Kirill A. Shutemov wrote: > Add a couple of arch_prctl() handles: > > - ARCH_ENABLE_TAGGED_ADDR enabled LAM. The argument is required number > of tag bits. It is rounded up to the nearest LAM mode that can > provide it. For now only LAM_U57 is supported, with 6 tag bits. As stated in the reply to the other patch; this isn't a 'for now' thing. Due to how the untag thing works. Supporting U48 on 5-level kernels is going to require a more complicated untag.
