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From:   Michael Ellerman <patch-notifications@ellerman.id.au>
To:     mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org,
        Laurent Dufour <ldufour@linux.ibm.com>
Cc:     linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
        stable@vger.kernel.org
In-Reply-To: <20210805152308.33988-1-ldufour@linux.ibm.com>
References: <20210805152308.33988-1-ldufour@linux.ibm.com>
Subject: Re: [PATCH] powerpc/pseries: Fix update of LPAR security flavor after LPM
Message-Id: <162885586748.2317031.9018391947607622770.b4-ty@ellerman.id.au>
Date:   Fri, 13 Aug 2021 21:57:47 +1000
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On Thu, 5 Aug 2021 17:23:08 +0200, Laurent Dufour wrote:
> After LPM, when migrating from a system with security mitigation enabled to
> a system with mitigation disabled, the security flavor exposed in /proc is
> not correctly set back to 0.
> 
> Do not assume the value of the security flavor is set to 0 when entering
> init_cpu_char_feature_flags(), so when called after a LPM, the value is set
> correctly even if the mitigation are not turned off.
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/pseries: Fix update of LPAR security flavor after LPM
      https://git.kernel.org/powerpc/c/c18956e6e0b95f78dad2773ecc8c61a9e41f6405

cheers