linux-kernel - Re: `AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y` causes AMDGPU to fail on Ryzen: amdgpu: SME is not compatible with RAVEN

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Message-ID: <YVxjgFScCZNwliMi@zn.tnic>
Date:   Tue, 5 Oct 2021 16:38:56 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     Tom Lendacky <thomas.lendacky@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        amd-gfx@...ts.freedesktop.org
Subject: Re: `AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y` causes AMDGPU to fail on
 Ryzen: amdgpu: SME is not compatible with RAVEN

On Tue, Oct 05, 2021 at 04:29:41PM +0200, Paul Menzel wrote:
> Selecting the symbol `AMD_MEM_ENCRYPT` – as
> done in Debian 5.13.9-1~exp1 [1] – also selects
> `AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT`, as it defaults to yes,

I'm assuming that "selecting" is done automatically: alldefconfig,
olddefconfig?

Because CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT only depends on
CONFIG_AMD_MEM_ENCRYPT and former can be disabled in oldconfig or
menuconfig etc.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette