On Thu, Feb 04, 2016 at 10:54:42AM -0800, Andi Kleen wrote: > > It sounds like these devices have some device-specific register where > > BAR 0 is supposed to be? Setting IORESOURCE_PCI_FIXED doesn't seem > > like the right solution to me. Even if we set that, the core still > > There is no actually functional register on these locations that has any side > effects. > > > believes this resource corresponds to some address space consumed by > > the device. I think we will still try to size the BAR and decode its > > type. I think it will still show up via lspci. That's all > > meaningless. > > But would actually anything use it?
You mean, would anything actually use the lspci output? I don't know, but why would we want it to print garbage? And the kernel certainly uses the struct resource. Setting IORESOURCE_PCI_FIXED is not a way of saying "please ignore this resource." Bjorn
