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

21 Oct 2024

      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...

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 <matthias.lange@kernkonzept.com 
<mailto:matthias.lange@kernkonzept.com>> 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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Re: vm-basic-pci demo is not working for arm64

Philipp Eppelt