> -----Original Message-----
> From: Alex Williamson [mailto:[email protected]]
> Sent: Thursday, October 27, 2011 11:04 AM
> To: Ren, Yongjie
> Cc: KVM General; Avi Kivity
> Subject: Re: [qemu bug] device assignment doesn't work: "error: requires KVM
> support"
>
> On Thu, 2011-10-27 at 10:56 +0800, Ren, Yongjie wrote:
> > Hi,
> > When doing device assignment with qemu and kvm upstream, I met "error:
> requires KVM support".
> > Please also refer to the bug in qemu bugzilla.
> > https://bugs.launchpad.net/qemu/+bug/882358
> >
> > qemu.git commit:8843cf40c0f482949e6ae9d0119e45d6b96fe890
> >
> > I met the following error when doing device assignment with qemu in kvm
> host.
> > ./x86_64-softmmu/qemu-system-x86_64 -smp 2 -m 1024 -device
> pci-assign,host=0e:00.0 -hda /root/rhel6u1.img
> > qemu-system-x86_64: -device pci-assign,host=0e:00.0: pci-assign: error:
> requires KVM support
> > qemu-system-x86_64: -device pci-assign,host=0e:00.0: Device 'pci-assign'
> > could
> not be initialized
> >
> > ./x86_64-softmmu/qemu-system-x86_64 -device ? 2>&1 | grep -i pci-assign
> > name "pci-assign", bus PCI, desc "pass through host pci devices to the
> > guest"
> >
> > When configuring the qemu, it prints "KVM support yes". My qemu
> configuration log and compiling log are attached.
> >
> > But commit edbb7c0d doesn't have this issue.
It's edbb7c0de56692868e6126c7ff7e8bf917f8d0e7. "edbb7c0d" is unique in git log,
so it may stand for its full commit ID.
> Note these are qemu-kvm.git commit IDs.
They are commit IDs in master branch of git://github.com/avikivity/qemu.git
>
> The error message is correct, device assignment requires kvm support.
> What does 'info kvm' in the monitor report?
It shows "kvm support: disabled".
But when configuring qemu, I get this message " KVM support yes". See details
in my attachment configure.log
yongjie
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