Regarding ARM on Genode virt_qemu_arm_v8a

[Divya Sharma]

Thanks Norman for your suggestion.
I modified the sculpt.run as you said but still the uplink session is not
getting created may be because of the label mismatch.

[init] Warning: drivers: no route to service "Uplink" (label="drivers ->
virtio_mmio_nic -> ")
[init -> drivers -> virtio_mmio_nic] Error: Uplink-session creation failed
(ram_quota=3538944, cap_quota=8, mac_address="52:54:00:12:34:56",
tx_buf_size=1638400, rx_buf_size=1638400, label="")
[init -> drivers -> virtio_mmio_nic] Error: Uncaught exception of type
'Genode::Service_denied'


I  tried to figure it out by inspecting the run scripts and runtime
configuration  working behind the scenes but I  am not able to provide that
route to nic_router.So,Is there anything that needs to be changed in [1]
to give the route to the uplink session.
Also as you said that by default  Sculpt labels the nic driver as "nic_drv"
so is there any way to make it to virtio_mmio_nic by modifying these .cc
files  [2],[3],[4].Maybe i could be wrong for it.

Then kindly guide me towards it.
Also i am sharing the modification that i did to scripts.

[1]
https://github.com/genodelabs/genode/blob/master/repos/gems/run/sculpt.run#L153
[2]
https://github.com/genodelabs/genode/blob/master/repos/gems/src/app/sculpt_manager/network.cc
[3]
https://github.com/genodelabs/genode/blob/master/repos/gems/src/app/sculpt_manager/runtime/nic_drv.cc
[4]
https://github.com/genodelabs/genode/blob/master/repos/gems/src/app/sculpt_manager/runtime/nic_router.cc


Best
Divya.


On Wed, Mar 15, 2023 at 4:53 PM Norman Feske <norman.feske at genode-labs.com>
wrote:

> Hello Divya,
>
> On 2023-03-15 11:27, Divya Sharma wrote:
> > As you said i launched only  [init -> runtime -> virtio_mmio_nic]
> > component,but still the runtime version is not getting the mac
> > address,as seen in the log ,don't why.Is there anything left for routing
> > the uplink request from nic driver to virtio_mmio_nic.
>
> may [1] be the missing piece of the puzzle?
>
> [1]
>
> https://github.com/genodelabs/genode/blob/master/repos/gems/run/sculpt.run#L153
>
> By convention, Sculpt labels the nic driver as "nic_drv". When the
> sculpt manager generates the <start> node for runtime, it uses this
> generic name as binary name. Also, the <policy> node generated for the
> nic router takes this name as key for selecting the network domain.
>
> If the label does not match, the nic router leaves the uplink session
> unused because it has no matching policy.
>
> To bridge the gap between the generic convention and the platform-
> specific driver name, the sculpt.run script uses the 'nic_drv' and
> 'nic_drv_dtb' functions to rewrite the labels for the ROM sessions for
> the binary and dtb to the corresponding platform-specific names of the
> ROM modules at core.
>
> Cheers
> Norman
>
> --
> Dr.-Ing. Norman Feske
> Genode Labs
>
> https://www.genode-labs.com · https://genode.org
>
> Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
> Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth
>
>
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