On Tue, Sep 21, 2021 at 11:27:17PM +0200, Borislav Petkov wrote:
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?
There's no need in Intel check this early. Only AMD need it. Maybe just
opencode them?