linux-kernel - Re: [PATCH V5 0/5] Add SEV_INIT

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Message-ID: <299d0b0d-9f4b-d2dc-fde7-b3583da384e0@amd.com>
Date:   Sat, 4 Dec 2021 17:36:51 -0600
From:   Brijesh Singh <brijesh.singh@....com>
To:     Peter Gonda <pgonda@...gle.com>, thomas.lendacky@....com
Cc:     brijesh.singh@....com, Marc Orr <marcorr@...gle.com>,
        David Rientjes <rientjes@...gle.com>,
        Joerg Roedel <jroedel@...e.de>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        John Allen <john.allen@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Bonzini <pbonzini@...hat.com>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V5 0/5] Add SEV_INIT_EX support


On 12/3/21 8:46 AM, Peter Gonda wrote:
> SEV_INIT requires users to unlock their SPI bus for the PSP's non
> volatile (NV) storage. Users may wish to lock their SPI bus for numerous
> reasons, to support this the PSP firmware supports SEV_INIT_EX. INIT_EX
> allows the firmware to use a region of memory for its NV storage leaving
> the kernel responsible for actually storing the data in a persistent
> way. This series adds a new module parameter to ccp allowing users to
> specify a path to a file for use as the PSP's NV storage. The ccp driver
> then reads the file into memory for the PSP to use and is responsible
> for writing the file whenever the PSP modifies the memory region.
>
> V4
> * Fix make C=1 W=1 warnings.
>
> V3
> * Add another module parameter 'psp_init_on_probe' to allow for skipping
>   PSP init on module init.
> * Fixes review comments from Sean.
> * Fixes missing error checking with file reading.
> * Removed setting 'error' to a set value in patch 1.
>
> Signed-off-by: Peter Gonda <pgonda@...gle.com>
> Reviewed-by: Marc Orr <marcorr@...gle.com>
> Acked-by: David Rientjes <rientjes@...gle.com>
> Cc: Tom Lendacky <thomas.lendacky@....com>
> Cc: Brijesh Singh <brijesh.singh@....com>
> Cc: Marc Orr <marcorr@...gle.com>
> Cc: Joerg Roedel <jroedel@...e.de>
> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> Cc: David Rientjes <rientjes@...gle.com>
> Cc: John Allen <john.allen@....com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Paolo Bonzini <pbonzini@...hat.com>
> Cc: linux-crypto@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org


Series

Acked-by: Brijesh Singh <brijesh.singh@....com>

thanks Peter.