linux-kernel - Re: [PATCH] KVM: x86: Add lowest-priority support for vt-d posted-interrupts

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Message-ID: <56559C44.7030500@redhat.com>
Date:	Wed, 25 Nov 2015 12:32:20 +0100
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	"Wu, Feng" <feng.wu@...el.com>,
	Radim Krcmár <rkrcmar@...hat.com>
Cc:	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] KVM: x86: Add lowest-priority support for vt-d
 posted-interrupts



On 25/11/2015 02:58, Wu, Feng wrote:
> Okay, let me try to understand this clearly:
> - We will have a new KVM command line parameter to indicate whether
>   vector hashing is enabled.
> - If it is not enabled, for PI, we can only support single destination lowest
>   priority interrupts, for non-PI, we continue to use RR.
> - If it is enabled, for PI and non-PI we use vector hashing for both of them.
> 
> Is this the case you have in mind? Thanks a lot!

Yes, thanks!

Paolo
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