Re: [RFC 9/9] x86/mm: Implement PR_SET/GET_TAGGED_ADDR_CTRL with LAM

[H.J. Lu]

On Fri, Feb 5, 2021 at 7:16 AM Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
>
> Provide prctl() interface to enabled LAM for user addresses. Depending
> how many tag bits requested it may result in enabling LAM_U57 or
> LAM_U48.

I prefer the alternate kernel interface based on CET arch_prctl interface which
is implemented in glibc on users/intel/lam/master branch:

https://gitlab.com/x86-glibc/glibc/-/tree/users/intel/lam/master

and in GCC on users/intel/lam/master branch:

https://gitlab.com/x86-gcc/gcc/-/tree/users/intel/lam/master

-- 
H.J.