tcg: Note requirement on atomic direct jump patching
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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@ -230,6 +230,7 @@ static inline void tlb_flush_by_mmuidx(CPUState *cpu, ...)
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|| defined(__sparc__) || defined(__aarch64__) \
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|| defined(__s390x__) || defined(__mips__) \
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|| defined(CONFIG_TCG_INTERPRETER)
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/* NOTE: Direct jump patching must be atomic to be thread-safe. */
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#define USE_DIRECT_JUMP
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#endif
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