Hello, I need to pass through the PCIe bus to Linux VM via io and uvmm servers. First, I generated the corresponding dtb file from qemu for *virt* machine to get the exact pcie device node.
$ qemu-system-aarch64 -nographic -machine > virt,virtualization=true,dumpdtb=conf/arm_virt-64-full.dtb > $ dtc -I dtb -O dts conf/arm_virt-64-full.dtb Secondly, I copied the following nodes to my dts file (*pcie@10000000*, *intc@8000000* and *v2m@8020000*) exactly as they are in the original dts file. Finally, I modified the ned scripts as mentioned in the comments of the *pcie_ecam.cc* file. The issue is that there is no IO driver for the device *v2m@8020000 *which is responsible for msi-controller. This device is needed for the PCIe. The error logs : > VMM[PCIe ctl]: PCIe host bridge pcie@10000000 refers to invalid MSI > controller: MSI parent is not an MSI controller > VMM[HW PCI dev]: No MSI-X controller available for MSI-X device pci_bus[1] > (devid=1) > VMM[HW PCI dev]: No MSI-X controller available for MSI-X device pci_bus[2] > (devid=2). > VMM[ioproxy]: No corresponding IO resource for 'v2m@8020000'.reg[0] > (0x8020000-0x8020fff). > VMM[vm]: Device creation for v2m@8020000 failed. Disabling device. How can I pass through the PCIe device if there is no IO driver for the needed msi-controller ? Thanks in advance, Regards -- Mohamed Dawod *Software Engineer, *Cairo Egypt -- *Driving Innovation! Visit our website www.avelabs.com <http://www.avelabs.com/>*, to read Avelabs Confidentiality Notice, follow this link: http://www.avelabs.com/email/disclaimer.html <http://www.avelabs.com/email/disclaimer.html>
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