* kvm-intel does not load when Intel TXT is enabled
@ 2010-05-14 18:24 Andrej Podzimek
2010-05-16 12:04 ` Avi Kivity
0 siblings, 1 reply; 2+ messages in thread
From: Andrej Podzimek @ 2010-05-14 18:24 UTC (permalink / raw)
To: kvm
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Hello,
when I enable Intel TXT (Trusted Execution Technology) in the BIOS settings of my Lenovo W510, the kvm-intel module does not load and says 'kvm: disabled by bios', despite the fact that both VT-x and VT-d are enabled. Disabling TXT enables hardware virtualization and kvm-intel works as expected.
Are VT-[xd] and TXT supposed to be mutually exclusive? Or could it be a BIOS bug?
Andrej
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: kvm-intel does not load when Intel TXT is enabled
2010-05-14 18:24 kvm-intel does not load when Intel TXT is enabled Andrej Podzimek
@ 2010-05-16 12:04 ` Avi Kivity
0 siblings, 0 replies; 2+ messages in thread
From: Avi Kivity @ 2010-05-16 12:04 UTC (permalink / raw)
To: Andrej Podzimek; +Cc: kvm
On 05/14/2010 09:24 PM, Andrej Podzimek wrote:
> Hello,
>
> when I enable Intel TXT (Trusted Execution Technology) in the BIOS
> settings of my Lenovo W510, the kvm-intel module does not load and
> says 'kvm: disabled by bios', despite the fact that both VT-x and VT-d
> are enabled. Disabling TXT enables hardware virtualization and
> kvm-intel works as expected.
>
> Are VT-[xd] and TXT supposed to be mutually exclusive? Or could it be
> a BIOS bug?
>
Running kvm under txt needs special support in the kernel; it will be
available in 2.6.35.
--
error compiling committee.c: too many arguments to function
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2010-05-14 18:24 kvm-intel does not load when Intel TXT is enabled Andrej Podzimek
2010-05-16 12:04 ` Avi Kivity
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