From 3f2546b2ef55b661fd8dd69682b38992225e86f6 Mon Sep 17 00:00:00 2001 From: fishsoupisgood Date: Mon, 29 Apr 2019 01:17:54 +0100 Subject: Initial import of qemu-2.4.1 --- target-openrisc/mmu_helper.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 target-openrisc/mmu_helper.c (limited to 'target-openrisc/mmu_helper.c') diff --git a/target-openrisc/mmu_helper.c b/target-openrisc/mmu_helper.c new file mode 100644 index 00000000..ee1c6f61 --- /dev/null +++ b/target-openrisc/mmu_helper.c @@ -0,0 +1,42 @@ +/* + * OpenRISC MMU helper routines + * + * Copyright (c) 2011-2012 Jia Liu + * Zhizhou Zhang + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see . + */ + +#include "cpu.h" +#include "exec/cpu_ldst.h" + +#ifndef CONFIG_USER_ONLY + +void tlb_fill(CPUState *cs, target_ulong addr, int is_write, + int mmu_idx, uintptr_t retaddr) +{ + int ret; + + ret = openrisc_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx); + + if (ret) { + if (retaddr) { + /* now we have a real cpu fault. */ + cpu_restore_state(cs, retaddr); + } + /* Raise Exception. */ + cpu_loop_exit(cs); + } +} +#endif -- cgit v1.2.3