mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-27 21:40:49 +00:00
f025692c99
translate_insn() implementations fetch instruction bytes piecemeal, which can cause qemu-user to generate inconsistent translations if another thread modifies them concurrently [1]. Fix by making pages containing translated instruction non-writable right before loading instruction bytes from them. [1] https://lists.nongnu.org/archive/html/qemu-devel/2021-08/msg00644.html Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20210805204835.158918-1-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
/*
|
|
* Translated block handling
|
|
*
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
*
|
|
* 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 2.1 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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef TRANSLATE_ALL_H
|
|
#define TRANSLATE_ALL_H
|
|
|
|
#include "exec/exec-all.h"
|
|
|
|
|
|
/* translate-all.c */
|
|
struct page_collection *page_collection_lock(tb_page_addr_t start,
|
|
tb_page_addr_t end);
|
|
void page_collection_unlock(struct page_collection *set);
|
|
void tb_invalidate_phys_page_fast(struct page_collection *pages,
|
|
tb_page_addr_t start, int len,
|
|
uintptr_t retaddr);
|
|
void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end);
|
|
void tb_check_watchpoint(CPUState *cpu, uintptr_t retaddr);
|
|
|
|
#ifdef CONFIG_USER_ONLY
|
|
void page_protect(tb_page_addr_t page_addr);
|
|
int page_unprotect(target_ulong address, uintptr_t pc);
|
|
#endif
|
|
|
|
#endif /* TRANSLATE_ALL_H */
|