linux-kernel - Re: [PATCH v3 04/12] KVM: X86: Add a ratio parameter to kvm_scale

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Message-ID: <9e3ccebe-cd18-ed4f-d362-384de0ebfa4a@redhat.com>
Date:   Mon, 24 May 2021 17:56:13 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Ilias Stamatis <ilstam@...zon.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, mlevitsk@...hat.com,
        vkuznets@...hat.com, wanpengli@...cent.com, jmattson@...gle.com,
        joro@...tes.org, zamsden@...il.com, mtosatti@...hat.com,
        dwmw@...zon.co.uk
Subject: Re: [PATCH v3 04/12] KVM: X86: Add a ratio parameter to
 kvm_scale_tsc()

On 24/05/21 17:48, Sean Christopherson wrote:
> 
> 		if (msr_info->host_initiated) {
> 			offset = vcpu->arch.l1_tsc_offset;
> 			ratio = vcpu->arch.l1_tsc_scaling_ratio;
> 		} else {
> 			offset = vcpu->arch.tsc_offset;
> 			ratio = vcpu->arch.tsc_scaling_ratio;
> 		}
> 		msr_info->data = kvm_scale_tsc(vcpu, rdtsc(), ratio) + offset;

Looks good, indeed I didn't do this just out of laziness really (and 
instead got a typo).

Paolo