Re: [RFC 0/2] PCI: Introduce pci_ops::use_arch_sysdata

2021-03-19 Thread Bjorn Helgaas
On Sat, Mar 20, 2021 at 12:19:54AM +0800, Boqun Feng wrote: > Hi Bjorn, > > I'm currently working on virtual PCI support for Hyper-V ARM64 guests. > Similar to virtual PCI on x86 Hyper-V guests, the PCI root bus is not > probed via ACPI (or of), it's probed from Hyper-V VMbus, therefore it Prime

[RFC 0/2] PCI: Introduce pci_ops::use_arch_sysdata

2021-03-19 Thread Boqun Feng
Hi Bjorn, I'm currently working on virtual PCI support for Hyper-V ARM64 guests. Similar to virtual PCI on x86 Hyper-V guests, the PCI root bus is not probed via ACPI (or of), it's probed from Hyper-V VMbus, therefore it doesn't have config window. Since ARM64 is a CONFIG_PCI_DOMAINS_GENERIC=y,