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[Qemu-devel] when does a target frontend need to use gen_io_start()/gen_

From: Peter Maydell
Subject: [Qemu-devel] when does a target frontend need to use gen_io_start()/gen_io_end() ?
Date: Tue, 12 May 2015 16:32:08 +0100

In order for -icount to work, it's important for the target
translate.c code to correctly bracket any generated code which
can "do I/O" with gen_io_start()/gen_io_end() calls. But
does anybody know exactly what the criteria are here for this?
It would be nice if we could document this in a comment in
gen_icount.h -- I'm happy to write one up if somebody will just
tell me what the right answer is :-)

-- PMM

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