linux-kernel - Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around Qemu to test kernels

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Message-ID: <4E554E5A.8050902@redhat.com>
Date:	Wed, 24 Aug 2011 22:17:46 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Blue Swirl <blauwirbel@...il.com>
CC:	Alexander Graf <agraf@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"kvm@...r.kernel.org list" <kvm@...r.kernel.org>,
	qemu-devel Developers <qemu-devel@...gnu.org>,
	"linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
	Pekka Enberg <penberg@...nel.org>
Subject: Re: [Qemu-devel] [PATCH] KVM: Add wrapper script around Qemu to test
 kernels

On 08/24/2011 08:40 PM, Blue Swirl wrote:
> >  +
> >  +       # Qemu's own build system calls it qemu-system-x86_64
> >  +       [ "$QEMU_BIN" ] || QEMU_BIN=$(which qemu-system-x86_64 2>/dev/null)
>
> If you run qemu-system-x86_64 on an i386 host, will it use kvm at all?

I think it will, and that's actually a bug, since kvm doesn't support 
virtualizing long mode on a 32-bit host.


-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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