On 14.02.2022 13:56, Andrew Cooper wrote:
> Microcode loading is not a fastpath, but there are control flow integrity
> hardening benefits from using altcall, because it allows us to clobber the
> endbr64 instructions on all function pointer targets.
>
> Convert the existing microcode_ops pointer into an __ro_after_init structure,
> and move {amd,intel}_ucode_ops into __initconst_cf_clobber.
>
> Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>Reviewed-by: Jan Beulich <jbeul...@suse.com>
