linux-kernel - Re: [PATCH] KVM: x86/mmu: Remove unused field mmio_cached in struct kvm_mmu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <YS/bJbzgG+pasIxu@google.com>
Date:   Wed, 1 Sep 2021 19:57:25 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Jia He <justin.he@....com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: x86/mmu: Remove unused field mmio_cached in struct
 kvm_mmu_page

On Mon, Aug 30, 2021, Jia He wrote:
> After reverting and restoring the fast tlb invalidation patch series,
> the mmio_cached is not removed. Hence a unused field is left in
> kvm_mmu_page.
> 
> Cc: Sean Christopherson <seanjc@...gle.com>
> Signed-off-by: Jia He <justin.he@....com>

Reviewed-by: Sean Christopherson <seanjc@...gle.com> 

There's also additional cleanup we can do to take advantage of the free byte.
I'll include this patch in a follow-up mini-series to hopefully make life a bit
easier for Paolo.

Thanks!