On 25/07/19 07:55, Pavel Dovgalyuk wrote:
>>
>> I think you do not need this patch if you remove the assignment in
>> cpu_tb_exec, and compile a "move 0 to cpu->can_do_io" in gen_tb_start
>> instead.
> "move 0 to cpu->can_do_io" only for icount mode?
Yes, using CF_ICOUNT.
> And we'll also need to
> From: Paolo Bonzini [mailto:pbonz...@redhat.com]
> On 24/07/19 10:44, Pavel Dovgalyuk wrote:
> > From: Pavel Dovgalyuk
> >
> > Most of IO instructions can be executed only at the end of the block in
> > icount mode. Therefore translator can set cpu_can_io flag when translating
> > the last instr
From: Pavel Dovgalyuk
Most of IO instructions can be executed only at the end of the block in
icount mode. Therefore translator can set cpu_can_io flag when translating
the last instruction.
But when the blocks are chained, then this flag is not reset and may
remain set at the beginning of the ne
