[RFC 2/2] PCI: hv: Tell PCI core arch-specific sysdata is used
From: Boqun Feng <hidden>
Date: 2021-03-19 16:21:19
Also in:
linux-arm-kernel, linux-hyperv, lkml
Subsystem:
hyper-v/azure core and drivers, pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
Use the newly introduced ->use_arch_sysdata to tell PCI core, we still use the arch-specific sysdata way to set up root PCI buses on CONFIG_PCI_DOMAINS_GENERIC=y architectures, this is preparation fo Hyper-V ARM64 guest virtual PCI support. Signed-off-by: Boqun Feng (Microsoft) <redacted> --- drivers/pci/controller/pci-hyperv.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index 27a17a1e4a7c..7cfa18d8a26e 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c@@ -859,6 +859,9 @@ static int hv_pcifront_write_config(struct pci_bus *bus, unsigned int devfn, static struct pci_ops hv_pcifront_ops = { .read = hv_pcifront_read_config, .write = hv_pcifront_write_config, +#ifdef CONFIG_PCI_DOMAINS_GENERIC + .use_arch_sysdata = 1, +#endif }; /*
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2.30.2