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Re: [Qemu-devel] Redundant VDE network
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] Redundant VDE network |
Date: |
Tue, 9 Dec 2014 09:37:21 +0000 |
On Tue, Dec 9, 2014 at 6:29 AM, Dmitry Antipov <address@hidden> wrote:
> On 12/08/2014 08:53 PM, Stefan Hajnoczi wrote:
>
>> Try:
>>
>> qemu-system-sparc -m 256 \
>> -netdev vde,sock=/tmp/vde0,id=vde0 \
>> -device ne2k_pci,netdev=vde0 \
>> -netdev vde,sock=/tmp/vde1,id=vde1 \
>> -device ne2k_pci,netdev=vde1 \
>> -hda vm0.img
>
>
> This works just fine for qemu-system-x86, but not for SPARC with lance NIC:
>
> qemu-system-sparc -m 256 \
> -netdev vde,sock=/tmp/vde0,id=vde0 -device lance,netdev=vde0 \
> -netdev vde,sock=/tmp/vde1,id=vde1 -device lance,netdev=vde1 \
> -hda vm0.img
>
> qemu-system-sparc: -device lance,netdev=vde0: Parameter 'driver' expects
> pluggable device type
>
> It looks like PCI/sysbus emulation is incomplete/broken on SPARC.
> Assuming that x86 is OK, what SPARC-specific stuff should I check?
Is there a reason why you are using the old 32-bit SPARC machine types
instead of the more modern 64-bit SPARC machine types?
$ sparc-softmmu/qemu-system-sparc -M help
Supported machines are:
LX Sun4m platform, SPARCstation LX
SPARCClassic Sun4m platform, SPARCClassic
SPARCbook Sun4m platform, SPARCbook
SS-10 Sun4m platform, SPARCstation 10
SS-20 Sun4m platform, SPARCstation 20
SS-4 Sun4m platform, SPARCstation 4
SS-5 Sun4m platform, SPARCstation 5 (default)
SS-600MP Sun4m platform, SPARCserver 600MP
Voyager Sun4m platform, SPARCstation Voyager
leon3_generic Leon-3 generic
none empty machine
$ sparc64-softmmu/qemu-system-sparc64 -M help
Supported machines are:
Niagara Sun4v platform, Niagara
none empty machine
sun4u Sun4u platform (default)
sun4v Sun4v platform
I guess the SS-5 default machine type you are running doesn't have a PCI bus?
By the way, I have not tested the command-line because Fedora does not
have a vde package. You are in niche territory with both SPARC and
vde, expect to either debug things yourself or file bugs (they may not
be addressed in a timely fashion). Just want to set expectations for
what you will find.
Stefan