Re: System Tick in QEMU

[Peter Maydell]

On Thu, 19 Aug 2021 at 06:54, asif siddiqui <asifsiddiqui120@gmail.com> wrote:
>
> Hello All,
>
> We are using xlnx-zcu102 machine and following command to boot the QNX OS as 
> guest on top of QEMU with WIndows as HOST OS.
>
> QEMU Command to boot QNX Image-
> qemu-system-aarch64 -M xlnx-zcu102 -m 8G -serial mon:stdio -display none 
> -device loader,file=E:\QNX-IFS.bin,cpu-num=0
>
> We are working on the gptp timing. To implement the gptp time we need to 
> enable the system tick (Xilinx-zcu102 + QNX + QEMU).
>
> For getting the Timer Counter's value we are trying to read Counter_Value_1 
> (TTC) Register as mentioned in the given link
> https://www.xilinx.com/html_docs/registers/ug1087/ug1087-zynq-ultrascale-registers.html#ttc___counter_value_1.html
>
> Query -
> How to enable the system tick in QEMU enviroment(Xilinx-zcu102 + QNX + QEMU). 
> Do we need to configure any command line option in the QEMU command.

I have cc'd the maintainers of the xlnx-zcu102 machine model,
who will probably know.

thanks
-- PMM