TeLeMan wrote:
>> Now to the content: env already equals single_cpu_env, so there is no
>> need in writing it back. That's because break/watchpoints are triggered
>> synchronously over the context in which they may raise an exception as
>> result.
> env in op_help.c is asm(AREG0) not single_cpu_env.

Which makes no difference due to the synchronous characteristics. The
point where env and single_cpu_env diverges while a vcpu is running is
the beginning of a bug.

> Did you test your codes?

I'm using it, including SMP.

There is still a bug, but it's unrelated to the context. It's related to
watchpoints triggering in helper function instead of generated code.
Will fix that later.

Jan