Re: Support for Cortex-A55

[Mihai Moldovan]

* On 1/29/23 18:12, Alyosha Shevandin wrote:
> The below call:
> 
> qemu-system-aarch64 -nographic -machine virt,secure=on -cpu cortex-a55 -smp
> clusters=1,cores=1 -m 1024 -bios ../bl1.bin -d unimp -semihosting-config
> enable=on,target=native
> 
> fails with error:
> 
> qemu-system-aarch64: unable to find CPU model 'cortext-a55'
> 
> The qemu-system-aarch64 binary is build from the top of the master branch.
> 
> I’m also not able to find any reference to Cortext-A55 in the sources. For
> instance target/arm/cpu64.c, aarch64_cpus
> 
> does not contain any reference to Cortex-A55.

Sorry, but that cannot be true. I don't know WHAT repository master branch
you're building off, but it is certainly there in
https://gitlab.com/qemu-project/qemu/-/blame/master/target/arm/cpu64.c?page=2#L1309
and has been like that for about a month.

Are you sure that you're a.) actually on the current master branch HEAD and b.)
not using a weird out-of-date repository?

As to other capabilities and the actual implementation status, I cannot offer
any advice.



Mihai

N.B.: I'm not affiliated with the qemu project, I just did a quick check on the
source code.

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