SYNC_PORT          45 tools/testing/selftests/kvm/x86_64/smm_test.c 	0xe4, SYNC_PORT,      /* in $SYNC_PORT, %al */
SYNC_PORT          51 tools/testing/selftests/kvm/x86_64/smm_test.c 	asm volatile("in $" XSTR(SYNC_PORT)", %%al \n"