linux-kernel - Re: [PATCH 18/43] KVM: x86: Consolidate APIC base RESET initialization code

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Date:   Wed, 26 May 2021 00:04:50 -0700
From:   Reiji Watanabe <reijiw@...gle.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>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 18/43] KVM: x86: Consolidate APIC base RESET
 initialization code

On Fri, Apr 23, 2021 at 5:51 PM Sean Christopherson <seanjc@...gle.com> wrote:
>
> Consolidate the APIC base RESET logic, which is currently spread out
> across both x86 and vendor code.  For an in-kernel APIC, the vendor code
> is redundant.  But for a userspace APIC, KVM relies on the vendor code
> to initialize vcpu->arch.apic_base.  Hoist the vcpu->arch.apic_base
> initialization above the !apic check so that it applies to both flavors
> of APIC emulation, and delete the vendor code.
>
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>

Reviewed-by: Reiji Watanabe <reijiw@...gle.com>