Hi, I ported DWC PCIE part from fsl-imx7.c to my new cusotm virt machine based on RISC-V "virt".
It looks ok so far. Now i'm wondering whether there is a "standard/ready to use for most of cases" device tree description for the synopsis pcie host device ? Looking this way: https://mjmwired.net/kernel/Documentation/devicetree/bindings/pci/designware-pcie.txt but would be glad to hear some advices if any. Best regards, Arthur On Fri, Jun 21, 2024 at 1:30 PM Thomas Huth <th...@redhat.com> wrote: > On 21/06/2024 11.16, Peter Maydell wrote: > > On Fri, 21 Jun 2024 at 08:07, Arthur Tumanyan <arthurtuman...@gmail.com> > wrote: > >> > >> Hi, > >> > >> I just tried to run mcimx7d-sabre machine this way: > >> > >> ${HOME}/cosim/usr/local/bin/qemu-system-arm -M mcimx7d-sabre -m 2G \ > >> -kernel ${HOME}/cosim-arm/buildroot/output/images/uImage \ > >> --initrd > ${HOME}/cosim-arm/buildroot/output/images/rootfs.cpio.gz \ > >> -nographic \ > >> -net nic -net user > >> > >> and it just prints this and do nothing: qemu-system-arm: warning: nic > imx.enet.1 has no peer > >> > >> Based on what I see in the mcimx7d-sabre.c , it configures just very > basic things, no PCIe at all (may be I'm wrong ;) ) > > > > The machine model in mcimx7d-sabre.c creates the SoC object > > (TYPE_FSL_IMX7). It's the code for that in hw/arm/fsl-imx7.c > > that creates all the SoC devices including the PCIe controller. > > (This structure is similar to real hardware where you have a > > board, which has one or two chips on it like RAM but most of > > the complicated stuff is inside the one big SoC chip.) > > > >> Is there any idea what goes wrong here ? Maybe someone has experience > with running this machine ? > > > > "No output" usually means "your guest kernel is not configured > > correctly for this machine type", and/or possibly "you didn't > > tell the kernel to output on the serial port". > > By the way, it seems like we don't even have an avocado test for that > machine available. Peter, do you know whether there is a kernel for this > machine available somewhere that we could use for testing? > > Thomas > > >
