linux-kernel - Re: [PATCH] KVM: allow compiling out SMM support

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Message-ID: <YzYCL9bvqDeg4HLP@google.com>
Date:   Thu, 29 Sep 2022 20:38:07 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [PATCH] KVM: allow compiling out SMM support

On Thu, Sep 29, 2022, Paolo Bonzini wrote:
> The two Kconfig entries for SMM and XEN are more for things that you want to
> remove to reduce attack surface than for testing.

Yep, we want to disable SMM to reduce KVM's attack/bug surface.  Any performance
benefits are bonus side effects.