Function cpu_auxmsr

freebsd/i386/i386/initcpu.c:634–639

* The value for the TSC_AUX MSR and rdtscp/rdpid on the invoking CPU. * * Caller should prevent CPU migration. */

 * Caller should prevent CPU migration.
 */
u_int
cpu_auxmsr(void)
{
	KASSERT((read_eflags() & PSL_I) == 0, ("context switch possible"));
	return (PCPU_GET(cpuid));
}

extern int elf32_nxstack;