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Date: Fri, 23 Jun 2017 16:23:59 -0500 From: Brijesh Singh <brijesh.singh@....com> To: Pavel Machek <pavel@....cz> Cc: brijesh.singh@....com, linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org, "Hook, Gary" <Gary.Hook@....com>, thomas.lendacky@....com, herbert@...dor.apana.org.au, davem@...emloft.net Subject: Re: [PATCH 0/3] Introduce AMD Secure Processor device On 06/22/2017 08:25 AM, Pavel Machek wrote: > On Thu 2017-06-22 06:42:01, Brijesh Singh wrote: >> CCP device (drivers/crypto/ccp/ccp.ko) is part of AMD Secure Processor, >> which is not dedicated solely to crypto. The AMD Secure Processor includes >> CCP and PSP (Platform Secure Processor) devices. >> >> This patch series adds a framework that allows functional component of the >> AMD Secure Processor to be initialized and handled appropriately. The series >> does not makes any logic modification into CCP - it refactors the code to >> integerate CCP into AMD secure processor framework. > > Ok, so this is just preparation. When finished, what services will it provide > to Linux userland? Yes, this is in preparation to add PSP [1] and SEV (Secure Encrypted Virtualization) [2] support. When finished, the SEV will provide: a) in-kernel API to communicate with SEV FW inside the AMD Secure Processor b) userspace ioctl to manage the platform keys/certificates I have posted PSP and SEV patches as part of SEV RFC, see below [1] http://marc.info/?l=linux-mm&m=148846780431232&w=2 [2] http://marc.info/?l=linux-mm&m=148847075032602&w=2 -Brijesh
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