[Xen-devel] ARM64: PCIe in DOM0

[Bharat Bhushan <bharat.bhushan@xxxxxxx>]

Hi All,

I am booting XEN for the first time on my platform and observing that PCIe are 
not working.

Here are my observations on this.

1) "git-its" node (below) from device tree is not available in DOM0 device tree.

                its: gic-its@6020000 {
                        compatible = "arm,gic-v3-its";
                        msi-controller;
                        reg = <0x0 0x6020000 0 0x20000>;
                };

  We have "msi-parent" property in PCIe controller node which provides phandle 
of above mentioned node.
  Linux (DOM0) error out if it does find a valid msi-parent.

First question I have is, What is the reason for removing gic-its node?

2) Use Legacy interrupts rather than MSI

  Used "pci=nomsi" in DOM0 bootargs to move away from MSIs,
  
 Legacy interrupts are also not received and see netdev-watchdog.

Can someone please help on what's wrong I am doing.

Thanks
-Bharat




_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel