linux-kernel - Re: [PATCH 02/10] KVM: x86: APICv: fix race in kvm_request_apicv

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Date:   Wed, 7 Jul 2021 15:58:41 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Maxim Levitsky <mlevitsk@...hat.com>, kvm@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Sean Christopherson <seanjc@...gle.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Joerg Roedel <joro@...tes.org>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" 
        <linux-kernel@...r.kernel.org>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        Jim Mattson <jmattson@...gle.com>
Subject: Re: [PATCH 02/10] KVM: x86: APICv: fix race in
 kvm_request_apicv_update on SVM

On 07/07/21 14:57, Maxim Levitsky wrote:
> 
> Hi!
> Any update? should I use a lock for this?

Yes please, even irq_lock can do.

Paolo