On Tue, Oct 10, 2023 at 12:10:56PM +0200, Peter Zijlstra wrote:
> Now, obviously you really don't want boot_cpu_has() in
> __VIRTUAL_MASK_SHIFT, that would be really bad (Linus recently
> complained about how horrible the code-gen is around this already, must
> not make it far worse).
You mean a MOV (%rip) and a TEST are so horrible there because it is
a mask?
I'd experiment with it when I get a chance...
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
