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xen-users
[Xen-users] Re: Loosing vmx flag with Lenny 2.6.26-1-xen-amd64 on Q9400
Hi.
Problem solved. Sorry for asking.
Had to disable "VT for direct I/O" in the BIOS.
HVM works fine now. (/proc/cpuinfo still doesn't show a vmx flag,
though, so SUSE must use one of the setups where it's hidden.).
Regards,
Markus
Markus Kiefer schrieb:
Hi.
Fajar A. Nugraha schrieb:
On Mon, Feb 2, 2009 at 10:23 PM, Markus Kiefer <markus@xxxxxxxxxx> wrote:
I think the HVM (as well as some other) flag is hidden intentionally
on some versions of xen. Same thing happened on my RHEL 5 + Xen 3.3.1
while the flag still shows up on RHEL 5's stock Xen. Both systems are
able to start HVM domU normally.
I tried. And it didn't work.
Creation stops immediately, with xm stating that my cpu doesn't
support HVM.
:-/
Did you check the BIOS? If I remembered correctly, the flag still
shows even when BIOS disabled it.
I just checked again:
Virtualization is enabled,
VT for direct I/O is enabled,
Should I enable Trusted execution?
As far as I can tell from Intel's website, there is no version of the
Q9400 that doesn't support VT. By the way, the machine is a Dell
Optiplex 755MT.
There is another looong way to check it :
- boot normal kernel
- install vmware or Virtualbox
- install 64bit guest
If it works, CPU supports HVM and enabled in BIOS. If it doesn't,
something wrong with one of them.
Sigh. I'll try that.
Regards,
Markus
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