Re: [Part2 PATCH v4 05/29] crypto: ccp: Add Platform Security Processor (PSP) device support

[Borislav Petkov]

On Sat, Sep 30, 2017 at 10:55:25AM -0500, Brijesh Singh wrote:
> CRYPTO_DEV_CCP_DD is supported on aarch64 and x86. Whereas the PSP
> interface I am adding is available on x86 only hence its safe to add add
> depend on CPU_SUP_AMD for CRYPTO_DEV_SP_PSP.

I think just from having CRYPTO_DEV_CCP_DD depend on CPU_SUP_AMD ||
ARM64, CRYPTO_DEV_SP_PSP gets almost the same dependency transitively.
But sure, let's make the PSP build only on x86. It should depend on
X86_64, to be precise.

> Yes its very much possible. The SEV FW provides two sets of commands 1)
> platform certificate management and 2) guest management
> 
> The platform certificate management commands is used outside the
> CONFIG_KVM_AMD.

Ok, please state that in the commit message so that it is written down
somewhere.

Thx.

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    Boris.

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