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Arm Development Platforms forum Can't connect to Armv-A Base RevC AEM FVP via SSH

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Can't connect to Armv-A Base RevC AEM FVP via SSH

josecm over 1 year ago

I'm trying to connect via ssh to a Buildroot Linux instance running in an Armv-A Base RevC AEM FVP. These are the parameters I'm using:

FVP_Base_RevC-2xAEMvA \
    -C bp.smsc_91c111.enabled=true -C bp.hostbridge.userNetworking=true \
    -C bp.hostbridge.userNetPorts=127.0.0.1:8022=22 -C bp.hostbridge.userNetSubnet=10.0.2.0/23 \
    ....

Then I try to connect by running `ssh root@localhost -p 8022`, but the command just hangs.

I'm pretty sure Linux is working correctly as running the same exact Linux image in the Armv-A Foundation AEM FVP model works as expected. These are the parameters used:

Foundation_Platform \
    --network=nat \
    --network-nat-subnet=10.0.2.0/23 \
    --network-nat-ports=127.0.0.1:8022=22 \
    ....

Any idea on where I'm doing something wrong? And how to fix it?

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josecm over 1 year ago in reply to Toshihisa Oishi +1 verified

Thanks for your answer, but I think I realized the "issue". The problem is just that the Base RevC AEM FVP seems to be just too slow compared to Foundation AEM FVP. So it was not that the ssh connection...

0 Toshihisa Oishi over 1 year ago
Can you please check the two things below?

Which version of FVP are you using?

Which version of AEMFVP-A sw stack (located in the gitlab repository) are you using?

As noted in the user guide of the AEMFVP-A sw stack above, each release of sw stack has a recommended version of FVP.. Unless any specific reason, the recommended version of FVP should be used.
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0 Toshihisa Oishi over 1 year ago

If your are running a Linux instance that doesn't support SSH server e.g. BusyBox, incoming SSH to the FVP is not possible. If you install a Linux distribution listed in the user guide e.g. Fedora-36-1.5, you can ssh from the host to the FVP.
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+1 josecm over 1 year ago in reply to Toshihisa Oishi

Thanks for your answer, but I think I realized the "issue". The problem is just that the Base RevC AEM FVP seems to be just too slow compared to Foundation AEM FVP. So it was not that the ssh connection was not working. It was just taking a long time. I noticed the by setting cache_state_modelled=0 the Base RevC AEM FVP model became much faster. When I retried connecting with ssh it was working.
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