On Tue, 2018-10-30 at 22:17 +0000, Alistair Francis wrote: > V6: > - Fix the interrupt issue for the GPEX device
I gave this a spin. With the pcie.0 <- pcie-root-port <- virtio-net-pci setup I get qemu-system-riscv64: -device pcie-root-port,port=0x8,chassis=1,\ id=pci.1,bus=pcie.0,multifunction=on,addr=0x1: MSI-X is not \ supported by interrupt controller just like last time, which as I mentioned is a problem for libvirt because we follow the recommendations outlined in qemu/docs/pcie.txt and never plug devices into pcie.0 directly. Even after working around that issue by manually placing the device at 0000:00:01.0, it still doesn't work: I see pci 0000:00:01.0: BAR 6: assigned [mem 0x00000000-0x0003ffff pref] pci 0000:00:01.0: BAR 4: assigned [mem 0x00040000-0x00043fff 64bit pref] pci 0000:00:01.0: BAR 0: no space for [io size 0x0020] pci 0000:00:01.0: BAR 0: failed to assign [io size 0x0020] ... virtio_net virtio3: virtio: device uses modern interface but does not have VIRTIO_F_VERSION_1 virtio_net: probe of virtio3 failed with error -22 in dmesg and, while the device shows up in the output of lspci(8), it's nowhere to be seen when running 'ip addr' and friends. Let me know if you need me to try anything else :) -- Andrea Bolognani / Red Hat / Virtualization
