linux-kernel - Re: [PATCH v2 2/2] KVM: LAPIC: Guarantee the timer is in tsc-deadline mode when setting

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Message-ID: <20200825005813.GE15046@sjchrist-ice>
Date:   Mon, 24 Aug 2020 17:58:13 -0700
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Wanpeng Li <kernellwp@...il.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        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>
Subject: Re: [PATCH v2 2/2] KVM: LAPIC: Guarantee the timer is in
 tsc-deadline mode when setting

On Wed, Aug 12, 2020 at 02:30:38PM +0800, Wanpeng Li wrote:
> From: Wanpeng Li <wanpengli@...cent.com>
> 
> Check apic_lvtt_tscdeadline() mode directly instead of apic_lvtt_oneshot()
> and apic_lvtt_period() to guarantee the timer is in tsc-deadline mode when
> wrmsr MSR_IA32_TSCDEADLINE.
> 
> Signed-off-by: Wanpeng Li <wanpengli@...cent.com>
> ---

Reviewed-by: Sean Christopherson <sean.j.christopherson@...el.com>