linux-kernel - Re: [PATCH v2 07/18] KVM: x86/mmu: Do not use guest root level in audit

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Message-ID: <219937f8-6b49-47db-4ecf-f354b110da1c@redhat.com>
Date:   Fri, 18 Feb 2022 19:46:39 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Lai Jiangshan <laijs@...ux.alibaba.com>
Subject: Re: [PATCH v2 07/18] KVM: x86/mmu: Do not use guest root level in
 audit

On 2/18/22 19:37, Sean Christopherson wrote:
> Since I keep bringing it up...
> 
> From: Sean Christopherson<seanjc@...gle.com>
> Date: Fri, 18 Feb 2022 09:43:05 -0800
> Subject: [PATCH] KVM: x86/mmu: Remove MMU auditing
> 
> Remove mmu_audit.c and all its collateral, the auditing code has suffered
> severe bitrot, ironically partly due to shadow paging being more stable
> and thus not benefiting as much from auditing, but mostly due to TDP
> supplanting shadow paging for non-nested guests and shadowing of nested
> TDP not heavily stressing the logic that is being audited.
> 
> Signed-off-by: Sean Christopherson<seanjc@...gle.com>

Queued, thanks. O:-)

Paolo