On Mon, Dec 07, 2015 at 02:05:14PM +0200, Marcel Apfelbaum wrote:
> PCIe downstream ports (Root Ports and switches Downstream Ports) appear
> to firmware as PCI-PCI bridges and a 4K IO space is allocated for them
> even if there is no device behind them requesting IO space,
> all that for hotplug
On 12/07/2015 11:46 AM, Gerd Hoffmann wrote:
Hi,
However, PCIe devices can work without IO, so there is no need
to allocate IO space for hotplug.
Makes sense.
diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c
index 7b8aab7..4b37792 100644
--- a/src/fw/pciinit.c
+++ b/src/fw/pciinit.c
@@
PCIe downstream ports (Root Ports and switches Downstream Ports) appear
to firmware as PCI-PCI bridges and a 4K IO space is allocated for them
even if there is no device behind them requesting IO space,
all that for hotplug purpose.
However, PCIe devices can work without IO, so there is no need
