overriding BIOS (was: Re: [ANNOUNCE] kvm howto)

[Tomasz Torcz]

On Mon, Nov 06, 2006 at 12:15:02AM -0800, Dor Laor wrote:
> The BIOS check is a must, it checks bit #0 of MSR_IA32_FEATURE_CONTROL,
> if it set this means that software cannot write to the MSR. If bit #2 is
> clear too then when executing vmxon you'll get #GP.
> 
> So the check should better be there...

  You were right, just writing to this MSR (via kvm_enable) halts my laptop.
 Which is kinda strange, as this solution works on Intel Mac Minis.

  Anyway, complaint to Lenovo sent and got ignored.

-- 
Tomasz Torcz       ,,(...) today's high-end is tomorrow's embedded processor.''
zdzichu@xxxxxxxxxxxxxxxxx                      -- Mitchell Blank on LKML

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