9d82b5a792
After the previous patch, TLBs will be flushed on every change to the memory mapping. This patch augments that with synchronization of the MemoryRegionSections referred to in the iotlb array. With this change, it is guaranteed that iotlb_to_region will access the correct memory map, even once the TLB will be accessed outside the BQL. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
/*
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* Common CPU TLB handling
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*
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* Copyright (c) 2003 Fabrice Bellard
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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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#ifndef CPUTLB_H
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#define CPUTLB_H
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#if !defined(CONFIG_USER_ONLY)
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/* cputlb.c */
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void tlb_protect_code(ram_addr_t ram_addr);
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void tlb_unprotect_code_phys(CPUState *cpu, ram_addr_t ram_addr,
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target_ulong vaddr);
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void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, uintptr_t start,
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uintptr_t length);
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void cpu_tlb_reset_dirty_all(ram_addr_t start1, ram_addr_t length);
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void tlb_set_dirty(CPUArchState *env, target_ulong vaddr);
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extern int tlb_flush_count;
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/* exec.c */
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void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr);
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MemoryRegionSection *
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address_space_translate_for_iotlb(CPUState *cpu, hwaddr addr, hwaddr *xlat,
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hwaddr *plen);
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hwaddr memory_region_section_get_iotlb(CPUState *cpu,
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MemoryRegionSection *section,
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target_ulong vaddr,
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hwaddr paddr, hwaddr xlat,
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int prot,
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target_ulong *address);
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bool memory_region_is_unassigned(MemoryRegion *mr);
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#endif
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#endif
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