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Xilinx / qemu

Xilinx's fork of Quick EMUlator (QEMU) with improved support and modelling for the Xilinx platforms.

Home Page:https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/821395464/QEMU+User+Documentation

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Cosimulation Baremetal

nvgubba opened this issue · comments

commented

Hi,

Can you please provide QEMU Cosimulation + SystemC examples for Baremetal code, Xilinx Cosimulation instructions show only Linux Cosimulation. I am very much interested to know how this works with Baremetal or any RTOS

commented

Hi,

It works the same with baremetal as with Linux. For QEMU and the SystemC simulation both are just SW.

What chip do you want to emulate? Zynq-7000 or a ZynqMPSoC?

commented

Hi,
Anychip is fine for me for CoSimulation.
I am curious how to invoke the QEMU and SystemC Cosimulation when it is Barmetal.

  1. Precicesly i am looking whether hw-dtb is required during Baremetal Simulation, what will be the qemu arguments during that time
  2. Also, i want to see atleast one read and write transaction goes from QEMU to SystemC periperhal.

If you can provide this it will be very helpful. I searched in the internet and xilinx forumt to cosimulate baremetal, unfortunately i didn't get any good pointers

commented

Yes, the -hw-dtb option is always needed. The hw-dtb file describes the hardware that QEMU will emulate.

The -dtb option is not needed though.

Here's a ZynqMPSoC example from our testsuite, you'll have to put in your own baremetal.elf:

qemu-system-aarch64 -M arm-generic-fdt -hw-dtb /home/edgari/build-dts/LATEST/SINGLE_ARCH/zcu102-arm.cosim.dtb -serial stdio -display none -device loader,file=baremetal.elf,cpu-num=0 -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4 -machine-path /tmp/machine-path/

zynqmp_demo unix:/tmp/machine-path/qemu-rport-_amba@0_cosim@0 10000

commented

Hi,

Thanks for the feedback