On 10/31/2009 04:03 PM, Tom Horsley wrote:
On Sat, 31 Oct 2009 14:30:49 +0000
Marko Vojinovic wrote:
* upgrade your hardware
but be VERY CAREFUL to pick the processor correctly; test it for vmx flag using
LiveCD before buying (cat /proc/cpuinfo | grep vmx)
A system at work said I did have the vmx flag (actually there is a different
flag for AMD chips as well), but I still couldn't use kvm. Finally discovered
strange BIOS setting that would only take effect after a power cycle. So
not only do you need the chip support, you need a BIOS that allows you to
enable it (and the cpuinfo test won't check for that). I have heard
horror stories of BIOS version which refuse to offer the ability to enable
the feature (but never personally seen one), so merely checking vmx may
not be enough.
Sony Vaio laptops have this disabled in their BIOS in spite of the cpu
in the laptop having vmx support. Quite ridiculous. So make sure you
indeed check both the vmx support in the cpu *and* that it is not
disabled by the BIOS because some Marketing drone thought it "enhances"
the customer experience. How do they come up with these silly ideas...
Regards,
Patrick
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