linux-kernel - Re: [PATCH] x86/sev: Guard sev_evict_cache() with CONFIG_AMD_MEM

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Message-ID: <20250912203917.c7p7tavqydytugmb@amd.com>
Date: Fri, 12 Sep 2025 15:39:17 -0500
From: Michael Roth <michael.roth@....com>
To: Tom Lendacky <thomas.lendacky@....com>
CC: <linux-kernel@...r.kernel.org>, <x86@...nel.org>, Thomas Gleixner
	<tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov
	<bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, "Sean
 Christopherson" <seanjc@...gle.com>, <stable@...nel.org>
Subject: Re: [PATCH] x86/sev: Guard sev_evict_cache() with
 CONFIG_AMD_MEM_ENCRYPT

On Fri, Sep 12, 2025 at 03:29:19PM -0500, Tom Lendacky wrote:
> The sev_evict_cache() is guest-related code and should be guarded by
> CONFIG_AMD_MEM_ENCRYPT, not CONFIG_KVM_AMD_SEV. Move the function
> declarations under the appropriate #ifdef.
> 
> Fixes: 7b306dfa326f ("x86/sev: Evict cache lines during SNP memory validation")
> Cc: <stable@...nel.org>
> Signed-off-by: Tom Lendacky <thomas.lendacky@....com>

Reviewed-by: Michael Roth <michael.roth@....com>