Messages in this thread | | | Subject | Re: [Part2 PATCH v4 05/29] crypto: ccp: Add Platform Security Processor (PSP) device support | From | Brijesh Singh <> | Date | Sun, 1 Oct 2017 15:05:11 -0500 |
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On 9/30/17 11:11 AM, Borislav Petkov wrote: > 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.
I think theoretically a 32-bit host OS can invoke a PSP commands but currently PSP interface is exposing only the SEV FW command. And SEV feature is available when we are in 64-bit mode hence for now its okay to have depends on X86_64. I will add CRYPTO_DEV_CCP_DD depend on CPU_SUP_AMD || ARM64 and CRYPTO_DEV_SP_PSP depend on X86_64 and send you v4.2. thanks
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