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d5a439645a
When running system emulation, we need to transverse through the MMU and deliver interrupts according to the specification. This patch implements those two pieces and in addition adjusts the CPU initialization code to account for the new fields in CPUState. Signed-off-by: Alexander Graf <agraf@suse.de>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
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* S/390 helper routines
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*
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* Copyright (c) 2009 Alexander Graf
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "exec.h"
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/*****************************************************************************/
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/* Softmmu support */
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#if !defined (CONFIG_USER_ONLY)
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#define MMUSUFFIX _mmu
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#define SHIFT 0
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#include "softmmu_template.h"
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#define SHIFT 1
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#include "softmmu_template.h"
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#define SHIFT 2
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#include "softmmu_template.h"
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#define SHIFT 3
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#include "softmmu_template.h"
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/* try to fill the TLB and return an exception if error. If retaddr is
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NULL, it means that the function was called in C code (i.e. not
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from generated code or from helper.c) */
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/* XXX: fix it to restore all registers */
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void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr)
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{
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TranslationBlock *tb;
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CPUState *saved_env;
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unsigned long pc;
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int ret;
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/* XXX: hack to restore env in all cases, even if not called from
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generated code */
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saved_env = env;
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env = cpu_single_env;
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ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
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if (unlikely(ret != 0)) {
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if (likely(retaddr)) {
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/* now we have a real cpu fault */
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pc = (unsigned long)retaddr;
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tb = tb_find_pc(pc);
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if (likely(tb)) {
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/* the PC is inside the translated code. It means that we have
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a virtual CPU fault */
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cpu_restore_state(tb, env, pc);
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}
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}
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/* XXX */
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/* helper_raise_exception_err(env->exception_index, env->error_code); */
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}
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env = saved_env;
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}
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#endif
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uint32_t calc_cc(CPUState *env, uint32_t cc_op, uint64_t src, uint64_t dst,
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uint64_t vr)
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{
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return 0;
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}
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