On Mon, Aug 05, 2019 at 02:36:57PM -0400, Sasha Levin wrote: > On Fri, Aug 02, 2019 at 06:52:56PM +0000, Haiyang Zhang wrote: > > Due to Azure host agent settings, the device instance ID's bytes 8 and 9 > > are no longer unique. This causes some of the PCI devices not showing up > > in VMs with multiple passthrough devices, such as GPUs. So, as recommended > > by Azure host team, we now use the bytes 4 and 5 which usually provide > > unique numbers. > > > > In the rare cases of collision, we will detect and find another number > > that is not in use. > > Thanks to Michael Kelley <mikelley@xxxxxxxxxxxxx> for proposing this idea. > > Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx> > > Acked-by: Sasha Levin <sashal@xxxxxxxxxx> > > Bjorn, will you take it through the PCI tree or do you want me to take > it through hyper-v? Lorenzo usually applies patches to drivers/pci/controller/*, so that would be my preference. Bjorn
