supported machines for aarch64

[ckim]

Hello,

I tried “qemu-system-arm –machine help” and it gave me 75 machines.

Then I tried “qemu-system-aarch64 –machine help”, and it gave me almost the same result except it had raspi3, sbsa-ref, xlnx-versal-virt and xlnx-zcu102 in addition.

I asked myself, Does this mean most machines work both in 32bit mode and 64bit mode and those added 4 machines work only in 64bit mode?
So I tried for integrator machine which is supported both by qemu-system-arm and qemu-system-aarch64,

“qemu-system-arm –machine integrator –cpu help” and “qemu-system-aarch64 –machine integrator –cpu help”, and this time,

The cpu list was almost the same(mostly seemd older 32 bit versions) but the aarch64 cpu list gave me 3 more cpus (cortex-a53, a57 and a72).

So I realized the qemu-system-aarch64 can emulate both 32bit and 64bit machine and cpu cores – as the document says.

.(it’s still strange “qemu-system-arm –machine help” doesn’t give me xlnx-versal-virt in the list, but “qemu-system-arm –machine xlnx-versal-virt –cpu help” still gives some machines in the list..)

I started this as a question but found out the answer while writing..

Thank you and correct me if I’m wrong

Chan Kim