On Tue, 2018-08-07 at 17:10 +0800, Yi Min Zhao wrote:
Abstract ======== The PCI representation in QEMU has recently been extended for S390 allowing configuration of zPCI attributes like uid (user-defined identifier) and fid (PCI function identifier). The details can be found here: https://lists.gnu.org/archive/html/qemu-devel/2016-06/msg07262.html
To support the new zPCI feature of the S390 platform, two new XML attributes, @uid and @fid, are introduced for device addresses of type 'pci', i.e.: <hostdev mode='subsystem' type='pci'> <driver name='vfio'/> <source> <address domain='0x0001' bus='0x00' slot='0x00' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' uid='0x0003' fid='0x00000027'/> </hostdev>
Overall thoughts on the series: the direction is good and the design looks solid, but there are still a few questions regarding the implementation that we'll need to figure out. We also need someone experienced in the area to look over the hotplug part, and I would feel way more comfortable merging this if Laine could go over the changes too... Hopefully he'll find time to do that when v3 rolls around :) -- Andrea Bolognani / Red Hat / Virtualization