kvm-unit-tests/powerpc/tm.c

17 /* Check "ibm,pa-features" property of a CPU node for the TM flag */
23 	prop = fdt_get_property(dt_fdt(), fdtnode, "ibm,pa-features", &plen);  in cpu_has_tm()
26 	/* Sanity check for the property layout (first two bytes are header) */  in cpu_has_tm()
27 	assert(plen >= 8 && prop->data[1] == 0 && prop->data[0] <= plen - 2);  in cpu_has_tm()
35 	if (prop->data[0] >= 24 && (prop->data[24] & 0x80) != 0)  in cpu_has_tm()
39 /* Check amount of CPUs nodes that have the TM flag */
54  * Returns:	FALSE - Failure
55  *		TRUE - Success
78  * If the test passes then your kernel probably has the necessary patch.
136 	/* kvm-unit-tests can limit number of CPUs present */  in main()
139 	       "TM available in all 'ibm,pa-features' properties");  in main()