MSR_TEST_CTRL
if (rdmsrq_safe(MSR_TEST_CTRL, &ctrl))
if (wrmsrq_safe(MSR_TEST_CTRL, ctrl))
rdmsrq(MSR_TEST_CTRL, tmp);
rdmsrq(MSR_TEST_CTRL, msr_test_ctrl_cache);
wrmsrq(MSR_TEST_CTRL, msr_test_ctrl_cache);
wrmsrq(MSR_TEST_CTRL, test_ctrl_val);