Re: [RFC PATCH v3 20/28] target/arm: Set cortex-a57 as default cpu for KVM-only build

[Fabiano Rosas]

Claudio Fontana <cfontana@suse.de> writes:

> On 1/13/23 15:04, Fabiano Rosas wrote:
>> The cortex-a15 is not present anymore when CONFIG_TCG=n, so use the
>> cortex-a57 as default cpu for KVM.
>> 
>> Signed-off-by: Fabiano Rosas <farosas@suse.de>
>
> Our recommendation currently for KVM on ARM is to always use CPU="host", as 
> named cpu models generally don't work (yet?) with KVM.
>
> https://qemu-project.gitlab.io/qemu/system/arm/cpu-features.html
>
> Should then "host" be the default for KVM if CONFIG_TCG=N or CONFIG_TCG=M and 
> the TCG .so is not loaded?

Yes, "host" seems to make more sense. I was under the impression that
there was a way to use cortex-a57 and cortex-a53 since they have
cpu->kvm_target set.