linux-kernel - Re: [PATCH] arm64: KVM: Enable minimalistic support for Thunder

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Message-ID: <CAFEAcA-uDyWko_TA+thCqZ-N8200n9b_ACcSQZvw1QX-PWCLBg@mail.gmail.com>
Date:	Mon, 29 Jun 2015 18:17:51 +0100
From:	Peter Maydell <peter.maydell@...aro.org>
To:	Marc Zyngier <marc.zyngier@....com>
Cc:	"Chalamarla, Tirumalesh" <Tirumalesh.Chalamarla@...iumnetworks.com>,
	Andre Przywara <Andre.Przywara@....com>,
	Will Deacon <Will.Deacon@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"rrichter@...ium.com" <rrichter@...ium.com>,
	"kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] arm64: KVM: Enable minimalistic support for Thunder

On 29 June 2015 at 18:11, Marc Zyngier <marc.zyngier@....com> wrote:
> On 29/06/15 18:06, Chalamarla, Tirumalesh wrote:
>>
>>> On Jun 29, 2015, at 1:53 AM, Marc Zyngier <marc.zyngier@....com> wrote:
>>> Constantly adding new CPUs without providing any insight as to how they
>>> should be emulated only brings churn, and not much benefit.
>>>
>> we are not planning(at this point) to emulate Thunder with QEMU/others.
>
> Fair enough. If cross-cpu VM migration is none of your concern, then
> Suzuki's patch should be enough.

"Emulate with QEMU" is a completely different thing from
"support cross-cpu VM migration" !

-- PMM
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