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From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Kashyap Chamarthy <kchamart@redhat.com>,
	"Richard W.M. Jones" <rjones@redhat.com>,
	QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] Cubietruck: cannot create KVM guests: "kvm_init_vcpu failed: Invalid argument"
Date: Tue, 9 Dec 2014 12:33:22 +0000	[thread overview]
Message-ID: <20141209123321.GD5272@work-vm> (raw)
In-Reply-To: <CAFEAcA-tpBuXLj3HtjkyQKsU1cQ36C2Tyo99E_havSc8aEcxYg@mail.gmail.com>

* Peter Maydell (peter.maydell@linaro.org) wrote:
> On 9 December 2014 at 11:25, Richard W.M. Jones <rjones@redhat.com> wrote:
> > I really think that qemu should just "do the right thing" though.
> 
> Tricky, because you have to use the same CPU as the host if
> you want to use KVM

That's an unusally strict requirement; is there no concept
of a common subset that will work on multiple CPUs?

Is that still true for v8? I can see it making it tricky for users
with piles of newer/older hosts.

Dave

> and that conflicts with wanting to do the
> same thing on all host platforms for a given set of command line
> options. If you have some concrete suggestions for improving
> things that don't break backwards-compatibility I'm happy to
> hear them, though.
> 
> -- PMM
> 
--
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK

  reply	other threads:[~2014-12-09 13:19 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-09 10:50 [Qemu-devel] Cubietruck: cannot create KVM guests: "kvm_init_vcpu failed: Invalid argument" Kashyap Chamarthy
2014-12-09 10:53 ` Peter Maydell
2014-12-09 11:27   ` Richard W.M. Jones
2014-12-09 12:15     ` Kashyap Chamarthy
2014-12-09 16:48     ` Kashyap Chamarthy
2014-12-09 11:25 ` Richard W.M. Jones
2014-12-09 11:42   ` Peter Maydell
2014-12-09 12:33     ` Dr. David Alan Gilbert [this message]
2014-12-09 13:48       ` Peter Maydell

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