Revert "KVM: SVM: use NPT page attributes"
This reverts commit 3c2e7f7d. Initializing the mapping from MTRR to PAT values was reported to fail nondeterministically, and it also caused extremely slow boot (due to caching getting disabled---bug 103321) with assigned devices. Reported-by: NMarkus Trippelsdorf <markus@trippelsdorf.de> Reported-by: NSebastian Schuette <dracon@ewetel.net> Cc: stable@vger.kernel.org # 4.2+ Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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