57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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* HPPA memory access helper routines
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*
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* Copyright (c) 2017 Helge Deller
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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 "qemu/osdep.h"
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#include "cpu.h"
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#include "exec/exec-all.h"
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#include "exec/helper-proto.h"
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#include "qom/cpu.h"
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#ifdef CONFIG_USER_ONLY
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int hppa_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
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int size, int rw, int mmu_idx)
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{
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HPPACPU *cpu = HPPA_CPU(cs);
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/* ??? Test between data page fault and data memory protection trap,
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which would affect si_code. */
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cs->exception_index = EXCP_DMP;
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cpu->env.cr[CR_IOR] = address;
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return 1;
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}
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#else
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hwaddr hppa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
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{
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/* Stub */
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return addr;
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}
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void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType type,
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int mmu_idx, uintptr_t retaddr)
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{
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/* Stub */
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int prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
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hwaddr phys = addr;
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/* Success! Store the translation into the QEMU TLB. */
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tlb_set_page(cs, addr & TARGET_PAGE_MASK, phys & TARGET_PAGE_MASK,
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prot, mmu_idx, TARGET_PAGE_SIZE);
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}
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#endif /* CONFIG_USER_ONLY */
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