linux-kernel - Re: [PATCH 1/8] KVM: x86/mmu: Drop unused CMPXCHG macro from paging

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: <CAJhGHyDjFCJdRjdV-W5+reg-3jiwJAqeCQ7A-vdUqt+dToJBdA@mail.gmail.com>
Date:   Tue, 14 Jun 2022 10:13:14 +0800
From:   Lai Jiangshan <jiangshanlai@...il.com>
To:     Sean Christopherson <seanjc@...gle.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>,
        "open list:KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)" 
        <kvm@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/8] KVM: x86/mmu: Drop unused CMPXCHG macro from paging_tmpl.h

On Tue, Jun 14, 2022 at 6:59 AM Sean Christopherson <seanjc@...gle.com> wrote:
>
> Drop the CMPXCHG macro from paging_tmpl.h, it's no longer used now that
> KVM uses a common uaccess helper to do 8-byte CMPXCHG.
>
> Fixes: f122dfe44768 ("KVM: x86: Use __try_cmpxchg_user() to update guest PTE A/D bits")
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>


In https://lore.kernel.org/lkml/20220605063417.308311-2-jiangshanlai@gmail.com/
two other unused macros are also removed.