Re: [PATCHv5 01/30] x86/tdx: Detect running as a TDX guest in early boot

[Borislav Petkov]

On Wed, Mar 02, 2022 at 05:27:37PM +0300, Kirill A. Shutemov wrote:
> +void __init tdx_early_init(void)
> +{
> +	u32 eax, sig[3];
> +
> +	cpuid_count(TDX_CPUID_LEAF_ID, 0, &eax, &sig[0], &sig[2],  &sig[1]);
> +
> +	BUILD_BUG_ON(sizeof(sig) != sizeof(TDX_IDENT) - 1);

That's new.

Is that pure paranoia or what are you protecting here against?

-- 
Regards/Gruss,
    Boris.

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