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accel/tcg: Introduce translator_use_goto_tb

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Add a generic version of the common use_goto_tb test.

Various targets avoid the page crossing test for CONFIG_USER_ONLY,
but that is wrong: mmap and mprotect can change page permissions.

Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-06-20 15:28:18 -07:00
parent a4390647f7
commit d3a2a1d803
2 changed files with 21 additions and 0 deletions
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10
include/exec/translator.h
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@ -145,6 +145,16 @@ void translator_loop(const TranslatorOps *ops, DisasContextBase *db,
void translator_loop_temp_check(DisasContextBase *db);
/**
* translator_use_goto_tb
* @db: Disassembly context
* @dest: target pc of the goto
*
* Return true if goto_tb is allowed between the current TB
* and the destination PC.
*/
bool translator_use_goto_tb(DisasContextBase *db, target_ulong dest);
/*
* Translator Load Functions
*