[Qemu-devel] Re: [FOR 0.12][PATCH] target-i386: Fix evaluation of DR7 register

[TeLeMan]

> 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.
Did you test your codes?