linux-kernel - Re: [PATCH 1/6] KVM: x86: Add callback functions for handling APIC ID, DFR and LDR update

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Date:   Wed, 17 Jul 2019 19:44:03 +0000
From:   "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@....com>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>
CC:     "joro@...tes.org" <joro@...tes.org>,
        "rkrcmar@...hat.com" <rkrcmar@...hat.com>
Subject: Re: [PATCH 1/6] KVM: x86: Add callback functions for handling APIC
 ID, DFR and LDR update

Paolo,

On 7/3/2019 4:16 PM, Paolo Bonzini wrote:
> On 22/03/19 12:57, Suthikulpanit, Suravee wrote:
>> Add hooks for handling the case when guest VM update APIC ID, DFR and LDR.
>> This is needed during AMD AVIC is temporary deactivated.
>>
>> Signed-off-by: Suravee Suthikulpanit<suravee.suthikulpanit@....com>
> Why not do this later when AVIC is reactivated, in
> svm_refresh_apicv_exec_ctrl?
> 
> Thanks,
> 
> Paolo
> 

Actually, calling avic_post_state_restore() in the svm_refresh_apicv_exec_ctrl()
should work also. I'll do that then.

Thanks,
Suravee