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 ;) )
Is there any idea what goes wrong here ? Maybe someone has experience with
running this machine ?
Before starting to create my own virt machine I would like to know I'm not
missing the existing ways to run this.
Thanks in advance,
Arthur
On Thu, Jun 20, 2024 at 11:37 PM Arthur Tumanyan <arthurtuman...@gmail.com>
wrote:
> Thanks for the answers, I could move forward a bit more. I'm going/I need
> to to create a "virt" machine with designware PCI controller for simulation
> purposes. Will get back with progress in case anyone is interested in
> results. Thank you again for your time and support.
> Arthur
>
> On Thu, Jun 20, 2024, 23:05 Peter Maydell <peter.mayd...@linaro.org>
> wrote:
>
>> On Thu, 20 Jun 2024 at 18:34, Thomas Huth <th...@redhat.com> wrote:
>> >
>> > On 20/06/2024 10.28, Arthur Tumanyan wrote:
>> > > From the other hand the device is declared as non pluggable:
>> > > dc->user_creatable = false;
>> >
>> > Well, that means that you cannot use those with "-device". They can
>> only be
>> > instantiated via the code that creates the machine.
>> >
>> > > Can you please help me to use designware-root-host/port devices ?
>> >
>> > It seems like the i.MX7 SABRE machine is using this device, so instead
>> of
>> > "-M virt", you could have a try with "-M mcimx7d-sabre" (and a kernel
>> that
>> > supports this machine) instead.
>>
>> Right -- these devices are the PCIe controller that's used on the i.MX7
>> and i.MX6 SoCs, and they're automatically created when you use a machine
>> type that uses one of those SoCs. The "virt" board doesn't use that
>> PCIe controller, it uses the "generic PCIe bridge" TYPE_GPEX_HOST
>> (and you automatically get a PCIe controller when you use the virt board).
>> You can't change the PCIe controller type of a QEMU machine from
>> the command line, you have to configure the guest to use the controller
>> the machine type provides.
>>
>> thanks
>> -- PMM
>>
>
