linux-kernel - Re: [PATCH v2 2/2] crypto: ccp - Fail the PSP initialization when writing psp data file failed

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Message-ID: <18f39270-87d3-3d3d-c60b-77465f81f3a0@google.com>
Date:   Tue, 16 Aug 2022 14:25:19 -0700 (PDT)
From:   David Rientjes <rientjes@...gle.com>
To:     Jacky Li <jackyli@...gle.com>
cc:     Brijesh Singh <brijesh.singh@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        John Allen <john.allen@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Marc Orr <marcorr@...gle.com>, Alper Gun <alpergun@...gle.com>,
        Peter Gonda <pgonda@...gle.com>, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel test robot <lkp@...el.com>
Subject: Re: [PATCH v2 2/2] crypto: ccp - Fail the PSP initialization when
 writing psp data file failed

On Tue, 16 Aug 2022, Jacky Li wrote:

> Currently the OS continues the PSP initialization when there is a write
> failure to the init_ex_file. Therefore, the userspace would be told that
> SEV is properly INIT'd even though the psp data file is not updated.
> This is problematic because later when asked for the SEV data, the OS
> won't be able to provide it.
> 
> Fixes: 3d725965f836 ("crypto: ccp - Add SEV_INIT_EX support")
> Reported-by: Peter Gonda <pgonda@...gle.com>
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Jacky Li <jackyli@...gle.com>

Acked-by: David Rientjes <rientjes@...gle.com>