Network ???

Network ???

[Jes Sorensen]

Hi,

I wanted to hear if network I/O works for anyone else? Since quite a
while I haven't been able to access my guest via network I/O. Console
and disk emulation is fine, but network just doesn't seem to let any
packets through - I have tried several nic emulators and virtio, all the
same :-(

This is using qemu-kvm and the older kvm-userspace.git, both cause this
problem for me.

Cheers,
Jes

RE: Network ???

[Zhang, Xiantao]

We had the fix before for networking emulation. And the casue is interrupts are not delivered to guest, and so guest can't send or receive any data through NICs, but the rootcause is PCI IRQs are not correctly mapped according to PCI PRT mapping presented by GFW. Maybe the fix is missing in the upstream, and I will check it and give a update. 
Xiantao

Jes Sorensen wrote:
> Hi,
> 
> I wanted to hear if network I/O works for anyone else? Since quite a
> while I haven't been able to access my guest via network I/O. Console
> and disk emulation is fine, but network just doesn't seem to let any
> packets through - I have tried several nic emulators and virtio, all
> the same :-(
> 
> This is using qemu-kvm and the older kvm-userspace.git, both cause
> this problem for me.
> 
> Cheers,
> Jes

Re: Network ???

[Jes Sorensen]

Zhang, Xiantao wrote:
> We had the fix before for networking emulation. And the casue is interrupts are not delivered to guest, and so guest can't send or receive any data through NICs, but the rootcause is PCI IRQs are not correctly mapped according to PCI PRT mapping presented by GFW. Maybe the fix is missing in the upstream, and I will check it and give a update. 
> Xiantao

Hi Xiantao,

I see, it looked like something like that. I notice it works with a
qemu I have from December, but the ones I compile both kvm-userland and
qemu-kvm do not work.

Cheers,
Jes