On 23.01.19 12:03, Cornelia Huck wrote: > On Mon, 21 Jan 2019 14:42:48 +0100 > David Hildenbrand <da...@redhat.com> wrote: > >> PCI on s390x is really weird and how it was modeled in QEMU might not have >> been the right choice. Anyhow, right now it is the case that: >> - Hotplugging a PCI device will silently create a zPCI device >> (if none is provided) >> - Hotunplugging a zPCI device will unplug the PCI device (if any) >> - Hotunplugging a PCI device will unplug also the zPCI device >> As far as I can see, we can no longer change this behavior. But we >> should fix it. >> >> Both device types are handled via a single hotplug handler call. This >> is problematic for various reasons: >> 1. Unplugging via the zPCI device allows to unplug PCI bridges as >> checks are not performed - bad. > > Maybe I'm confused here, but how can a zPCI device couple with a bridge? >
I was confused, bridges don't attach to a zPCI device. So this remark is invalid. Thanks! -- Thanks, David / dhildenb
