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

From	Borislav Petkov <bp@suse.de>
Newsgroups	linux.kernel
Subject	Re: [Part2 PATCH v4 05/29] crypto: ccp: Add Platform Security Processor (PSP) device support
Date	2017-09-30 18:20 +0200
Message-ID	<uvsEF-6tv-3@gated-at.bofh.it> (permalink)
References	<uuXrc-2L2-9@gated-at.bofh.it> <uv5f4-7SN-19@gated-at.bofh.it> <uv5f4-7SN-17@gated-at.bofh.it> <uvsEF-6tv-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

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.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: [Part2 PATCH v4 05/29] crypto: ccp: Add Platform Security  Processor (PSP) device support Borislav Petkov <bp@suse.de> - 2017-09-29 17:20 +0200
  [PATCH] crypto: ccp: Build the AMD secure processor driver only with  AMD CPU support Borislav Petkov <bp@suse.de> - 2017-09-30 10:40 +0200
    Re: [PATCH] crypto: ccp: Build the AMD secure processor driver only  with AMD CPU support Borislav Petkov <bp@suse.de> - 2017-09-30 18:00 +0200
  Re: [Part2 PATCH v4 05/29] crypto: ccp: Add Platform Security  Processor (PSP) device support Borislav Petkov <bp@suse.de> - 2017-09-30 18:20 +0200

csiph-web