Hi, I'm writing a driver for a SR-IOV device on the PCI bus. My architecture is a 64-bit X86 of intel Sandy bridge. In my device driver, I want to configure the device to transfer data to/from X86.I get the the device BAR MMIO base address with the command "lspci -s 04:00.03 -xxx" in the guest os(kvm). But after I ioremap() that MMIO base address,I failed to access the BAR MMIO space in the guest os(kvm). Is there a function which show mapping between the real PCI address stored in the BAR and the emulated address stored in the BAR? Thanks. zhengfei -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html