Re: BUG: linux guest with paravirt support thinks it boots on bare hardware

Alexander Graf
2008-03-30T20:08:45Z

On Mar 30, 2008, at 9:44 PM, Anthony Liguori wrote:

> Felix Leimbach wrote:
>> While testing the new virtio drivers in linux-2.6.25 my test
>> 2.6.25-rc7-git5 guest with paravirt support running in KVM-64
>> thinks it
>> sits on cold and unfriendly bare metal instead of a safe and cosy KVM
>> bed ;-)
>> Because it is very unhappy it emits the following message during
>> boot:
>> Booting paravirtualized kernel on bare hardware
>>
>> Of course the guest still runs perfectly and I am indeed very
>> impressed
>> by KVM and its performance. A big thanks to all the hard working devs
>> for that!
>>
>> Relevant config and dmesg below.
>>
>> regards,
>> Felix
>>
>> # zcat /proc/config.gz |grep '\(VIRT\|VMI\|XEN\)'
>> CONFIG_PARAVIRT_GUEST=y
>> CONFIG_XEN=y
>> CONFIG_VMI=y
>> CONFIG_PARAVIRT=y
>> CONFIG_VIRT_TO_BUS=y
>> # CONFIG_XEN_BLKDEV_FRONTEND is not set
>> CONFIG_VIRTIO_BLK=y
>> CONFIG_XEN_NETDEV_FRONTEND=y
>> CONFIG_VIRTIO_NET=y
>> CONFIG_HVC_XEN=y
>> # CONFIG_FB_VIRTUAL is not set
>> CONFIG_VIRTUALIZATION=y
>> CONFIG_VIRTIO=y
>> CONFIG_VIRTIO_RING=y
>> CONFIG_VIRTIO_PCI=y
>> CONFIG_VIRTIO_BALLOON=y
>>
>
> You're probably missing:
>
> CONFIG_KVM_CLOCK=y
> CONFIG_KVM_GUEST=y

Where do I find a kernel branch that supports these?

Alex