1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2023 Oxide Computer Company 14 */ 15 16 #include "payload_common.h" 17 #include "payload_utils.h" 18 19 #define UINT32_MAX 0xffffffff 20 21 void 22 start(void) 23 { 24 /* loop for as long as the host wants */ 25 for (;;) { 26 uint64_t tsc = rdtsc(); 27 outl(IOP_TEST_VALUE, (uint32_t)(UINT32_MAX & tsc)); 28 outl(IOP_TEST_VALUE, (uint32_t)(UINT32_MAX & (tsc >> 32))); 29 } 30 } 31