linux-kernel - Re: [PATCH v2 01/10] math64.h: Add mul_s64_u64

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Message-ID: <YKRBilQy9K95EJIP@google.com>
Date:   Tue, 18 May 2021 22:36:58 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Ilias Stamatis <ilstam@...zon.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        pbonzini@...hat.com, 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 v2 01/10] math64.h: Add mul_s64_u64_shr()

On Wed, May 12, 2021, Ilias Stamatis wrote:
> This function is needed for the nested TSC scaling code where we need to

s/the nested/KVM's nested virtualization.  Non-KVM folk will have no idea what
"nested" means without context.  They may know not what nested virtualization is,
but this will at least give them a starting point for asking the right questions.

> multiply the signed TSC offset with the unsigned TSC multiplier.