On 22/01/2016 14:05, Radim Krcmár wrote: > > This is a good question. I also thought about this before, but after > > thinking it a bit more, seems we don't need to do this. > > If we don't do this, the in-flight interrupts will continue to be > > delivered in PI mode while we are changing it to remapped > > mode in IRTE. Even if we do this, the in-flight interrupts are > > also delivered in PI mode before setting 'SN' anyway, so seems > > we really don't need this, what is your opinion? > I'd remove it.
It may be necessary because IRTE writes (128 bits) are not atomic. If so, no need to send v5, I'll add it back. Paolo
