linux-kernel - Re: [v3 13/26] KVM: Define a new interface kvm_find_dest

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Message-ID: <54B668D6.3070301@redhat.com>
Date:	Wed, 14 Jan 2015 14:02:14 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	"Wu, Feng" <feng.wu@...el.com>,
	Radim Kr?má? <rkrcmar@...hat.com>
CC:	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"hpa@...or.com" <hpa@...or.com>, "x86@...nel.org" <x86@...nel.org>,
	"gleb@...nel.org" <gleb@...nel.org>,
	"dwmw2@...radead.org" <dwmw2@...radead.org>,
	"joro@...tes.org" <joro@...tes.org>,
	"alex.williamson@...hat.com" <alex.williamson@...hat.com>,
	"jiang.liu@...ux.intel.com" <jiang.liu@...ux.intel.com>,
	"eric.auger@...aro.org" <eric.auger@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>
Subject: Re: [v3 13/26] KVM: Define a new interface kvm_find_dest_vcpu() for
 VT-d PI



On 14/01/2015 02:27, Wu, Feng wrote:
> As discussed with Paolo before, as the first stage, we only support single-CPU
> lowest priority for PI, since this is a new hardware feature enabling, Paolo trends
> to do simple things in the beginning.

:)

Nice way to sum it up!

Paolo

> Then we will support full lowest priority for
> it, such as, using vector hashing (this is one method of what hardware do for
> lowest priority today), I need to get some detailed information about this from
> hardware guys before enabling it.
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