Re: [Qemu-devel] [PATCH for-3.2 v7 6/6] hw/riscv/virt: Connect a VirtIO net PCIe device

[Logan Gunthorpe]

On 2018-11-21 2:55 p.m., Alistair Francis wrote:
> It is required for networking for PCIe devices. What PCIe device works
> for you without this patch? Can you tell me your command line
> arguments.

I can run it without that patch using a e1000e device and it works just
fine.

Command line:

$QEMU -s -nographic -machine virt -m 2G -kernel $BBL \
   -object rng-random,filename=/dev/urandom,id=rng0 \
   -append "console=hvc0 ro root=/dev/vda" \
   -device e1000e,netdev=net0 \
   -netdev user,id=net0 \
   -device virtio-rng-device,rng=rng0 \
   -device virtio-blk-device,drive=hd0 \
   -drive file=rootfs.img,format=raw,id=hd0 \
   -device nvme,drive=nvme0,serial=nvme0 \
   -drive file=nvme0.qcow2,if=none,id=nvme0

--

lspcirv-hfu-01:~#
00:00.0 Host bridge: Red Hat, Inc. QEMU PCIe Host bridge
00:01.0 Ethernet controller: Intel Corporation 82574L Gigabit Network
Connection
00:02.0 Non-Volatile memory controller: Intel Corporation QEMU NVM
Express Controller (rev 02)
address@hidden:~#

QEMU 3.0.92 monitor - type 'help' for more information
(qemu) info pci
  Bus  0, device   0, function 0:
    Host bridge: PCI device 1b36:0008
      PCI subsystem 1af4:1100
      id ""
  Bus  0, device   1, function 0:
    Ethernet controller: PCI device 8086:10d3
      PCI subsystem 8086:0000
      IRQ 11.
      BAR0: 32 bit memory at 0x40040000 [0x4005ffff].
      BAR1: 32 bit memory at 0x40060000 [0x4007ffff].
      BAR2: I/O at 0xffffffffffffffff [0x001e].
      BAR3: 32 bit memory at 0x40080000 [0x40083fff].
      BAR6: 32 bit memory at 0xffffffffffffffff [0x0003fffe].
      id ""
  Bus  0, device   2, function 0:
    Class 0264: PCI device 8086:5845
      PCI subsystem 1af4:1100
      IRQ 9.
      BAR0: 64 bit memory at 0x40084000 [0x40085fff].
      id ""
(qemu)