Re: vm-basic-pci demo is not working for arm64

I upgraded L4 version to 24.08 instead of 23.10 because 24.08 contains the
missing virt-arm_virt-64_pci.dts file.
I'm building for arm64 and when I run the demo VM-basic-pci, I got the
following error !
I didn't change anything in the dts/dtb or ned scripts excepting the typo
of

>  overlay = "-drom/virt-pci.dtbo"


What is the problem here ?

[image: image.png]

On Mon, Oct 21, 2024 at 11:35 AM Philipp Eppelt <
[email protected]> wrote:

> Hi Mohamed,
>
> can you please check your arm64 build tree and look into the folder
> 'assets/dtb/'? There should be links to all the .dtb files of uvmm. The
> link of
> the file in question on my machine is:
>
>
> [...]/.build-arm64/pkg/uvmm/configs/dts/OBJ-arm64_armv8a-std-l4f/virt-arm_virt-64_pci.dtb
>
> If the file is missing in the linked folder, please check the
> corresponding
> source directory:
>
> <src>/pkg/uvmm/configs/dts/
>
> If virt-arm_virt-64_pci.dts isn't in there, you can download it from our
> development version of L4Re on github and recompile the uvmm package.
>
>
> https://github.com/kernkonzept/uvmm/blob/master/configs/dts/virt-arm_virt-64_pci.dts
>
> If the file is there, please check that '<arm64-build>/assets' directory
> is in
> your MODULE_SEARCH_PATH.
>
> Let me know, if this solves the missing file problem.
>
> Cheers,
> Philipp
>
>
>
> Am 20.10.24 um 09:20 schrieb Mohamed Dawod:
> > Thanks Matthias
> > I'm going to fix the typo of *virt-pci.dtbo*.
> > What about the missing file *dtb/virt-arm_virt-64_pci.dtb *?
> >
> >
> > On Tue, Oct 15, 2024 at 11:58 PM Matthias Lange <
> [email protected]
> > <mailto:[email protected]>> wrote:
> >
> >     Hi Mohamed,
> >
> >     On [15-10-2024 16:59], Mohamed Dawod wrote:
> >      > Hi,
> >      > I was trying to run the L4 demo *vm-basic-pci* for *arm64* using
> the command
> >      > $ make qemu E=vm-basic-pci
> >      > but It didn't work because of the missing 2 files :
> >      > * virt-arm_virt-64_pci.dtb : which is requested by the
> *modules.list* file
> >      > in the line :
> >      >
> >      > > module[arch=arm64,fname=virt-pci.dtb]
>  dtb/virt-arm_virt-64_pci.dtb
> >      >
> >      > * virt-pci.dtbo : which is requested by the *vm-basic-pci.cfg* by
> the
> >      > configuration
> >      >
> >      > > if (L4.Info.arch() == "arm64") then
> >      > >    dt = "-drom/.fdt"
> >      > >    overlay = "*-drom/virt-pci.dtbo*"
> >
> >     This is actually a typo. Please change this line to
> >
> >        overlay = "-drom/virt-pci.dtb"
> >
> >     Best,
> >     Matthias.
> >
> >      > > else
> >      > >    dt = "-drom/virt-pci.dtb"
> >      > >    overlay = ""
> >      > > end
> >      >
> >      >
> >      > I searched for both files in the whole *l4re-snapshot-23.10.1*
> directory
> >      > but I couldn't find them
> >      > Where can I find those necessary files to run *vm-basic-pc*i demo?
> >      >
> >      > Thanks in advance,
> >      > Regards
> >      >
> >      > --
> >      > Mohamed Dawod
> >      > *Software Engineer,* Cairo Egypt
> >      >
> >      > --
> >      >
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