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tcg: Add EXCP_ATOMIC

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When we cannot emulate an atomic operation within a parallel
context, this exception allows us to stop the world and try
again in a serial context.

Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson
2016-06-29 22:12:55 -07:00
parent 1edaeee095
commit fdbc2b5722
9 changed files with 88 additions and 0 deletions
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include/exec/exec-all.h
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@@ -59,6 +59,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
void QEMU_NORETURN cpu_loop_exit(CPUState *cpu);
void QEMU_NORETURN cpu_loop_exit_restore(CPUState *cpu, uintptr_t pc);
void QEMU_NORETURN cpu_loop_exit_atomic(CPUState *cpu, uintptr_t pc);
#if !defined(CONFIG_USER_ONLY)
void cpu_reloading_memory_map(void);