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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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538928fd6c
During enumeration with multi-function EP devices, access to the configuration space of a non-existent function results in an unsupported request being returned as expected. By default the PAXB-based iProc PCIe controller forwards this as an APB error to the host system and that causes an exception, which is undesired. Disable this undesired behaviour and let the kernel PCI stack deal with an access to the non-existent function, in which case a vendor ID of 0xffff is returned and handled gracefully. Reported-by: JD Zheng <jiandong.zheng@broadcom.com> Signed-off-by: Ray Jui <ray.jui@broadcom.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: JD Zheng <jiandong.zheng@broadcom.com> Reviewed-by: Oza Oza <oza.oza@broadcom.com> Reviewed-by: Scott Branden <scott.branden@broadcom.com> |
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|---|---|---|
| .. | ||
| host | ||
| hotplug | ||
| pcie | ||
| access.c | ||
| ats.c | ||
| bus.c | ||
| ecam.c | ||
| host-bridge.c | ||
| hotplug-pci.c | ||
| htirq.c | ||
| iov.c | ||
| irq.c | ||
| Kconfig | ||
| Makefile | ||
| msi.c | ||
| of.c | ||
| pci-acpi.c | ||
| pci-driver.c | ||
| pci-label.c | ||
| pci-mid.c | ||
| pci-stub.c | ||
| pci-sysfs.c | ||
| pci.c | ||
| pci.h | ||
| probe.c | ||
| proc.c | ||
| quirks.c | ||
| remove.c | ||
| rom.c | ||
| search.c | ||
| setup-bus.c | ||
| setup-irq.c | ||
| setup-res.c | ||
| slot.c | ||
| syscall.c | ||
| vc.c | ||
| vpd.c | ||
| xen-pcifront.c | ||