linux-kernel - Re: [PATCH 26/67] iommu/amd: KVM: SVM: Delete now-unused cached/previous GA tag fields

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Message-ID: <Z_WiRqRjNzmrh_YP@google.com>
Date: Tue, 8 Apr 2025 15:25:10 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Paolo Bonzini <pbonzini@...hat.com>
Cc: Joerg Roedel <joro@...tes.org>, David Woodhouse <dwmw2@...radead.org>, 
	Lu Baolu <baolu.lu@...ux.intel.com>, kvm@...r.kernel.org, iommu@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, Maxim Levitsky <mlevitsk@...hat.com>, 
	Joao Martins <joao.m.martins@...cle.com>, David Matlack <dmatlack@...gle.com>
Subject: Re: [PATCH 26/67] iommu/amd: KVM: SVM: Delete now-unused
 cached/previous GA tag fields

On Tue, Apr 08, 2025, Paolo Bonzini wrote:
> On 4/4/25 21:38, Sean Christopherson wrote:
> > Delete the amd_ir_data.prev_ga_tag field now that all usage is
> > superfluous.
> 
> This can be moved much earlier (maybe even after patch 10 from a cursory
> look), can't it? 

Ya, I independently arrived at the same conclusion[*], specifically after

   KVM: SVM: Delete IRTE link from previous vCPU before setting new IRTE

[*] I was counting patches based on my local tree, which has three extra patches
    from the posted IRQs module param, and so initially thought the last dependency
    went away in patch 13.