PSL_ID
{ PSL_ID, "ID ", "id "},
: "0" (PSL_ID), "r" (0)
if (psl_check == PSL_ID) { /* cpuid supported */
: "0" (PSL_ID), "r" (0)
if (psl_check != PSL_ID)
: "0" (PSL_ID), "r" (0)
if (psl_check != PSL_ID)