Re: [PATCH 23/42] KVM: Activate Virtualization On Demand

[Alexander Graf]

On 18.03.2010, at 08:11, Dieter Ries wrote:

> On Wed, Mar 17, 2010 at 11:47:14PM +0100, Alexander Graf wrote:
>> It looks like one of your CPUs has EFER_SVME enabled on bootup already. I'm not aware of code clearing EFER, so if there's garbage in there on boot it stays there.
>> 
>> Could you please add the current CPU number to your printk? I bet it's always the same one.
> 
> [ 1300.393635] efer on CPU1 is d01
> [ 1300.393638] efer on CPU3 is d01
> [ 1300.393641] efer on CPU2 is d01
> [ 1300.393643] EFER_SVME is 1000
> [ 1300.393645] EFER_SVME is 1000
> [ 1300.393646] EFER_SVME is 1000
> [ 1300.393650] efer on CPU0 is 1d01
> [ 1300.393652] EFER_SVME is 1000
> [ 1300.393653] kvm: enabling virtualization on CPU0 failed
> 
> 
>> If that's the case I'd say you have a broken BIOS or bootloader.
> 
> You are right, it seems to be always cpu0. I'll check my BIOS and flash
> a newer version if available.

Please do. If that doesn't help ping me again. I'll write up a quirk patch then.


Alex--
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