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tcg: Note requirement on atomic direct jump patching

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Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <1461341333-19646-12-git-send-email-sergey.fedorov@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
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Sergey Fedorov 2016-04-22 19:08:53 +03:00 committed by Richard Henderson
parent c82460a560
commit 10b4f48555
1 changed files with 1 additions and 0 deletions
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include/exec/exec-all.h
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@ -230,6 +230,7 @@ static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
|| defined(__sparc__) || defined(__aarch64__) \
|| defined(__s390x__) || defined(__mips__) \
|| defined(CONFIG_TCG_INTERPRETER)
/* NOTE: Direct jump patching must be atomic to be thread-safe. */
#define USE_DIRECT_JUMP
#endif