linux-kernel - Re: [PATCH] crypto: ccp - fix the SEV probe in kexec boot path

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Message-ID: <20190208074703.ydqn6u75bbtkurhg@gondor.apana.org.au>
Date:   Fri, 8 Feb 2019 15:47:03 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     "Singh, Brijesh" <brijesh.singh@....com>
Cc:     "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Lendacky, Thomas" <Thomas.Lendacky@....com>,
        "Hook, Gary" <Gary.Hook@....com>
Subject: Re: [PATCH] crypto: ccp - fix the SEV probe in kexec boot path

On Wed, Jan 30, 2019 at 08:57:52PM +0000, Singh, Brijesh wrote:
> A kexec reboot may leave the firmware in INIT or WORKING state.
> Currently, we issue PLATFORM_INIT command during the probe without
> checking the current state. The PLATFORM_INIT command fails if the
> FW is already in INIT state. Lets check the current state, if FW
> is not in UNINIT state then transition it to UNINIT before
> initializing or upgrading the FW.
> 
> Signed-off-by: Brijesh Singh <brijesh.singh@....com>
> Cc: Tom Lendacky <thomas.lendacky@....com>
> Cc: Gary Hook <gary.hook@....com>
> Reviewed-by: Tom Lendacky <thomas.lendacky@....com>
> ---
>  drivers/crypto/ccp/psp-dev.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt