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  1. Bug #1031090
  2. Comment #5

Comment 5 for bug 1031090

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Stefan Bader (smb) wrote :

Bisection turned up the following patch (proved to be correct by reverting from Quantal):

commit fee84b079d5ddee2247b5c1f53162c330c622902
Author: Avi Kivity <email address hidden>
Date: Thu Nov 10 14:57:25 2011 +0200

    KVM: VMX: Intercept RDPMC

    Intercept RDPMC and forward it to the PMU emulation code.

    Signed-off-by: Avi Kivity <email address hidden>
    Signed-off-by: Gleb Natapov <email address hidden>
    Signed-off-by: Avi Kivity <email address hidden>

For Intel this seems to expect a certain feature based on the CPU but when trying to use/activate this from the nested setup it fails because the outer kvm module has no support for it.