Re: [PATCH v3 5/8] x86/sme: Replace occurrences of sme_active() with cc_platform_has()

Borislav Petkov
2021-09-21T21:27:35Z

On Wed, Sep 22, 2021 at 12:20:59AM +0300, Kirill A. Shutemov wrote:
> I still believe calling cc_platform_has() from __startup_64() is totally
> broken as it lacks proper wrapping while accessing global variables.

Well, one of the issues on the AMD side was using boot_cpu_data too
early and the Intel side uses it too. Can you replace those checks with
is_tdx_guest() or whatever was the helper's name which would check
whether the the kernel is running as a TDX guest, and see if that helps?

Thx.

--
Regards/Gruss,
Boris.