1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright IBM Corp. 2021 4 * 5 * Snippet used by specification exception interception test. 6 */ 7 #include <libcflat.h> 8 #include <bitops.h> 9 #include <asm/arch_def.h> 10 11 __attribute__((section(".text"))) int main(void) 12 { 13 struct lowcore *lowcore = (struct lowcore *) 0; 14 uint64_t bad_psw = 0; 15 16 /* PSW bit 12 has no name or meaning and must be 0 */ 17 lowcore->pgm_new_psw.mask = BIT(63 - 12); 18 lowcore->pgm_new_psw.addr = 0xdeadbeee; 19 asm volatile ("lpsw %0" :: "Q"(bad_psw)); 20 return 0; 21 } 22