Created attachment 363407 [details] KVM-verify-MTRR-validity.patch Do not allow invalid memory types in MTRR/PAT (generating a #GP otherwise). Signed-off-by: Marcelo Tosatti <mtosatti> Signed-off-by: Avi Kivity <avi> (cherry picked from commit d6289b9365c3f622a8cfe62c4fb054bb70b5061a) This is important to avoid guests running random code to possibly store (and later use) a random MTRR type.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2010-0271.html