Re: [Qemu-devel] [RFC 18/28] target-xtensa: implement exceptions

[Richard Henderson]

On 05/09/2011 12:38 PM, Max Filippov wrote:
> do I understand it right that if I use tb->flags or mem_index to make
> decisions during translation, then I must issue exit_tb on
> instructions that can change state they reflect?

Yes.

Quite often it's some sort of branch instruction anyway, such as
return-from-interrupt changing from kernel mode back to user mode.
However, there are some non-branch instructions that may require
the TB to end, such as TLB flushes.


r~