Hi:
I develop a custom os use qemu and use macos as host, I use the net
argument '-net nic,model=pcnet -net tap,ifname=tap0,script=no,downscript=no’
when run the qemu-system-i386,then I can get the network device in my custom os:
pci_device_dump: vendor id: 0x1022
pci_device_dump: device id: 0x2000
pci_device_dump: class code: 0x20000
pci_device_dump: revision id: 0x10
pci_device_dump: multi function: 0
pci_device_dump: card bus CIS pointer: 0
pci_device_dump: subsystem vendor id: 0
pci_device_dump: subsystem device id: 0
pci_device_dump: expansion ROM base address: feb80000
pci_device_dump: capability list pointer: 0
pci_device_dump: irq line: 11
pci_device_dump: irq pin: 1
pci_device_dump: min Gnt: 6
pci_device_dump: max Lat: 255
pci_device_dump: bar 0:
pci_device_bar_dump: type: io base address
pci_device_bar_dump: base address: c000
pci_device_bar_dump: len: 20
pci_device_dump: bar 1:
pci_device_bar_dump: type: mem base address
pci_device_bar_dump: base address: febd1000
pci_device_bar_dump: len: 20
I can send a message to the host from my custom os in qemu, but can’t receive a
message from the host.
so I rebuild the qemu use this patch, then I use the argument '-netdev
vmnet-bridged,id=vmnet,ifname=en0’ run the qemu-system-i386 again, this time, I
can’t get the network device either, I don’t know why, how to use vmnet-bridged
to send message to host from my custom os and receive a message from the host,
what should I do? thanks a lot!
