b773c149a8
Expose a routine to be called when no cpus are running. Simplify the do_tb_flush run_on_cpu callback, because that is explicitly called with start_exclusive; there is no need for the mmap_lock as well. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
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* tb-flush prototype for use by the rest of the system.
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*
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* Copyright (c) 2022 Linaro Ltd
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef _TB_FLUSH_H_
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#define _TB_FLUSH_H_
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/**
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* tb_flush__exclusive_or_serial()
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*
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* Used to flush all the translation blocks in the system. Mostly this is
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* used to empty the code generation buffer after it is full. Sometimes it
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* is used when it is simpler to flush everything than work out which
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* individual translations are now invalid.
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*
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* Must be called from an exclusive or serial context, e.g. start_exclusive,
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* vm_stop, or when there is only one vcpu. Note that start_exclusive cannot
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* be called from within the cpu run loop, so this cannot be called from
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* within target code.
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*/
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void tb_flush__exclusive_or_serial(void);
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/**
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* tb_flush() - flush all translation blocks
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* @cs: CPUState (must be valid, but treated as anonymous pointer)
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*
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* Used to flush all the translation blocks in the system. Sometimes
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* it is simpler to flush everything than work out which individual
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* translations are now invalid and ensure they are not called
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* anymore.
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*
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* tb_flush() takes care of running the flush in an exclusive context
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* if it is not already running in one. This means no guest code will
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* run until this complete.
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*/
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void tb_flush(CPUState *cs);
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void tcg_flush_jmp_cache(CPUState *cs);
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#endif /* _TB_FLUSH_H_ */
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