KVM: x86: optimize check for valid PAT value
[ Upstream commit 674ea351 ] This check will soon be done on every nested vmentry and vmexit, "parallelize" it using bitwise operations. Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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