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

Borislav Petkov bp at alien8.de
Tue Sep 21 21:27:17 UTC 2021


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.



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