Re: Running qemu-system-aarch64 with KVM support on a dual-booting android device

[Peter Maydell]

On Fri, 26 Jul 2024 at 02:01, Jonas Noll <jonas.c.noll@gmail.com> wrote:
>
> Hello.
>
> I'm running into the following issue:
>>
>> $ ./run_vm_kvm.sh
>> qemu-system-aarch64: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid 
>> argument
>
> but sometimes this issue:
>>
>> $ ./run_vm_kvm.sh
>> qemu-system-aarch64: error creating in-kernel ITS: No such device
>
>
> I'm currently trying to run a windows 11 for arm VM on a Cosmo Communicator 
> (an android phone that allows dual booting Debian Linux)
> It runs a helios p70 with cortex-a53 small cores and cortex-a73 big cores

You need to make sure you run QEMU in a way that it is constrained
to only run on one set of cores. KVM doesn't support running a
VM in a heterogeneous (big/little) setup (and unfortunately there's
no real way to diagnose this problem at startup).

thanks
-- PMM