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Re: [Qemu-ppc] QEMU powerpc embedded architecture base address problem
From: |
Alexander Graf |
Subject: |
Re: [Qemu-ppc] QEMU powerpc embedded architecture base address problem |
Date: |
Mon, 13 May 2013 13:51:15 +0200 |
On 13.05.2013, at 13:34, Sijia Li wrote:
> On 13/05/13 11:24, Alexander Graf wrote:
>>
>> On 13.05.2013, at 11:18, 李思嘉 wrote:
>>
>>> Thanks a lot.
>>
>> Please don't top post. Please always keep qemu-ppc CC'ed.
>>
>>>
>>> I am using the newest version of QEMU, which is QEMU 1.5.0. I want to test
>>> my network card driver for NE2000. But it seems like it doesn't support
>>> NE2000 when I add attribute -M ref405ep -cpu 401100c4 or -M taihu -cpu
>>> 401100c4. Because after running the virtual machine, there warning shows up:
>>>
>>> Warning: hub port hub0port1 has no peer
>>> Warning: vlan 0 with no nics
>>> Warning: netdev hub0port1 has no peer
>>> Warning: requested NIC (anonymous, model ne2k_pci) was not created (not
>>> supported by this machine?)
>>>
>>> I read the QEMU Emulator User Documentation, it said the user can add
>>> attribute "-net nic, model=?" to get the list of available devices for the
>>> specific target.
>>> But it doesn't work.
>>>
>>> So what can I do for creating a NIC in ref405ep or taihu platform? Or if
>>> both of these platforms can't add NIC, what else platforms which runs with
>>> CPU powerpc 405 can add a NE2000 NIC or other network card?
>>
>> It looks as if the 40x machine models don't spawn NICs according to the -net
>> configuration then. As mentioned in my earlier email, they aren't actively
>> developed anymore. Currently actively developed targets are: e500plat,
>> mpc8544ds, bamboo, prep, g3beige, mac99, pseries.
>>
>> You can try to spawn the ne2k device manually using -netdev and -device. If
>> the PCI adapter on the respective SoCs has been qdev'ified, that should work
>> despite the -net hickups.
>>
>> http://wiki.qemu.org/Documentation/Networking
>>
>>
>> Alex
>
>
> Sorry for the top post. From now, I will reply email from the end of the mail.
>
> I added attributes " -device ppc4xx-pcihost -device
This means that the machine doesn't spawn a PCI host controller. Does the board
even have PCI?
> ne2k_pci -net tap".
>
> Two problems happened:
> 1. After running the emulator, I use telnet to monitor the VM. When I input
> the command "info qtree", the result is as following.
> QEMU 1.4.91 monitor - type 'help' for more information
> (qemu) info qtree
> bus: main-system-bus
> type System
> dev: ppc4xx-pcihost, id ""
> irq 4
> mmio ffffffffffffffff/0000000000800040
> bus: pci.0
> type PCI
> dev: ne2k_pci, id ""
> mac = 52:54:00:12:34:56
> vlan = <null>
> netdev = <null>
> bootindex = -1
> addr = 01.0
> romfile = "efi-ne2k_pci.rom"
> rombar = 1
> multifunction = off
> command_serr_enable = on
> class Ethernet controller, addr 00:01.0, pci id 10ec:8029 (sub
> 1af4:1100)
> bar 0: i/o at 0xffffffffffffffff [0xfe]
> bar 6: mem at 0xffffffffffffffff [0x3fffe]
> dev: ppc4xx-host-bridge, id ""
> addr = 00.0
> romfile = <null>
> rombar = 1
> multifunction = off
> command_serr_enable = on
> class Bridge, addr 00:00.0, pci id 1014:027f (sub 1af4:1100)
> dev: m48t59, id ""
> size = 8192
> model = 8
> io_base = 0x0
> irq 1
> mmio 00000000f0000000/0000000000002000
>
> And the result of "info mtree" is as following:
> (qemu) info mtree
> memory
> 0000000000000000-7ffffffffffffffe (prio 0, RW): system
> 0000000000000000-0000000007ffffff (prio 0, RW): sdram-containers
> 0000000000000000-0000000007ffffff (prio 0, RW): ef405ep.ram
> 00000000ef600000-00000000ef6000d3 (prio 0, RW): gpt
> 00000000ef600300-00000000ef600307 (prio 0, RW): serial
> 00000000ef600500-00000000ef600510 (prio 0, RW): i2c
> 00000000ef600600-00000000ef600601 (prio 0, RW): opba
> 00000000ef600700-00000000ef600737 (prio 0, RW): pgio
> 00000000f0000000-00000000f0001fff (prio 0, RW): m48t59.nvram
> 00000000f0300000-00000000f03000ff (prio 0, RW): fpga
> 00000000fff00000-00000000fff7ffff (prio 0, RW): ef405ep.sram
> 00000000fff80000-000000010017ffff (prio 0, R-): ef405ep.bios
> I/O
> 0000000000000000-000000000000ffff (prio 0, RW): io
> aliases
>
> Could you help me to find the base address of my NIC "ne2k_pci"?
The base address is defined through the BAR registers that your OS needs to set
up inside of the PCI host controller.
>
>
> 2. Warning: vlan 0 with no nics
> Warning: nic ne2k_pci.0 has no peer
> Two warnings show when I ran the emulator.
> How can I fix these two warning?
Just pass -net none to qemu.
Alex