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Re: How the cpu_R in DisasContext is associated with register of CPUArch
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From: |
Alex Bennée |
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Subject: |
Re: How the cpu_R in DisasContext is associated with register of CPUArchState |
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Date: |
Mon, 06 Jul 2020 10:34:40 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
沈梦姣 <shen.mengjiao3-mVuRI66OGLPQT0dZR+AlfA@public.gmane.org> writes:
>>
>> Because in translate stage when write cpu register by guest code, it
>> operates totally on cpu_R of DisasContext, how to reflect it to
>> register of CPUArchState?
cpu_R holds TCG references to the value in CPUArchState (see
tcg_global_mem_new_i32). You cannot access the run time values during
translation but obviously the translator needs to know what the offset
into CPUArchState is so we can load/save the values to the right place.
>>
>> thanks a lot!
>
>
--
Alex Bennée