On Tue, Aug 26, 2025 at 06:52:11PM +0000, Parav Pandit wrote: > > > > If it does not, and a user pull out the working device, how does > > > > your patch help? > > > > > > > A driver must tell that it will not follow broken ancient behaviour and at that > > point device would stop its ancient backward compatibility mode. > > > > > > > > I don't know what is "ancient backward compatibility mode". > > > Let me explain. > Sadly, CSPs virtio pci device implementation is done such a way that, it works with ancient Linux kernel which does not have commit 43bb40c5b9265. OK we are getting new information here. So let me summarize. There's a virtual system that pretends, to the guest, that device was removed by surprise removal, but actually device is there and is still doing DMA. Is that a fair summary? -- MST