1 /* 2 * Generic exception handlers for registration and use in tests 3 * 4 * Copyright 2016 Suraj Jitindar Singh, IBM. 5 * 6 * This work is licensed under the terms of the GNU LGPL, version 2. 7 */ 8 9 #include <libcflat.h> 10 #include <asm/handlers.h> 11 #include <asm/ptrace.h> 12 #include <asm/ppc_asm.h> 13 14 /* 15 * Generic handler for decrementer exceptions (0x900) 16 * Return with MSR[EE] disabled. 17 */ 18 void dec_handler_oneshot(struct pt_regs *regs, void *data) 19 { 20 regs->msr &= ~(1UL << MSR_EE_BIT); 21 } 22