Re: Setting nx bit in virtual CPU

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On 04/08/2010 02:13 AM, Richard Simpson wrote:
gordon Code # ./check-nx
nx: enabled
gordon Code #

OK, seems to be enabled just fine.  Any other ideas?  I am beginning to
get that horrible feeling that there isn't a real problem and it is just
me being dumb!

I really hope so, because I am out of ideas... :)

Can you verify check-nx returns disabled on the guest?
Does /proc/cpuinfo show nx in the guest?

OK, time for a summary:

Host:  /proc/cpuinfo shows 'nx' and check-nx shows 'enabled'

Guest: /proc/cpuinfo doesn't show nx and check-nx shows 'disabled'

Strange. Can you hack qemu-kvm's cpuid code where it issues the ioctl KVM_SET_CPUID2 to show what the data is? I'm not where that code is in your version of qemu-kvm.

--
error compiling committee.c: too many arguments to function

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