Le mardi 28 mai 2019 21:01:52 UTC+2, Henning Schild a écrit :
> Am Tue, 28 May 2019 06:22:05 -0700
> schrieb <jeanne.***@gmail.com>:
>
> > Hello everyone,
> >
> > I'm trying to run the ivshmem-demo on a lanner NCA-510A. The inmate
> > cell seems to be working well. However, I can't get the interruptions
> > between the cells to work. Is this due to a configuration problem?
> > (You will find attached my configuration files) I explain : when I
> > launch the inmate the shared memory is written but the inmate doesn't
> > react to the uio_send and there is nothing to read in the uio_read...
>
> The ivshmem guestcode repo is not tested as well as jailhouse. And
> together with kernels there are now 3 components to combine. So i would
> not be surprised if your problem has to do with that uio linux example.
> But it is not horribly broken and should work! The main issue with it
> is that people do not read the docs and check out the wrong branch,
> later use the python code ... which is not tested on jailhouse ...
>
> I would suggest two ivshmem-demo cells before you
> even look at linux+uio. That way you get isvhmem-guestcode out of the
> picture and will start with just jailhouse.
> Especially since you later want to run linux in another cell anyways.
>
> > here is my :
> > grep ivshmem /proc/interrupts
> > 202: 0 0 0 0 0
> > 0 0 0 0 0 0
> > 0 0 0 0 0 0
> > 0 0 0 0 0 0 IR-PCI-MSI
> > 229376-edge uio_ivshmem
> >
>
> > Second question: the next step of my project will be to run the
> > uio_ivshmem driver between two linux cells. Is it possible or is the
> > driver only for the rootCell?
>
> The uio stuff will work in either root or non-root, no problem. That
> is, if it works.
>
> Henning
>
> > best regards,
> >
> > Jeanne
> >
Hello everyone,
First of all, thank you very much for your help!
I can get two inmates ivshmem-demo to work without any problems with all the
interruptions.
For the driver uio_ivhsmem I took the jailhouse branch on the git. The file
/dev/uio0 pops well and my ivshmem-demo inmate writes well on it. However,
there are still no interruptions...
Here is my lspci -v on my virtual PCI on the rootCell side. Is this good ?
lspci -v
00:0e.0 Unassigned class [ff00]: Red Hat, Inc Inter-VM shared memory
I/O behind bridge: 0000e000-0000efff
Best regards,
Jeanne
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