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


From: Fabiano Rosas
Subject: Re: [RFC PATCH v3 20/28] target/arm: Set cortex-a57 as default cpu for KVM-only build
Date: Mon, 16 Jan 2023 10:45:33 -0300

Richard Henderson <richard.henderson@linaro.org> writes:

> On 1/13/23 06:04, 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>
>
> Ideally there would not be a default at all, requiring the command-line 
> option to be used.

We could probably do that now without impact to users, since KVM would
always require a -cpu option due to the current default being
cortex-a15.

>
> Second choice would be "host", since that's the only value that's actually 
> usable (except 
> for the off-chance that you're actually running on an a57, which is less and 
> less likely 
> as time moves on).
>

I'll have to go around fixing qtest first, either to add -cpu or to add
-accel kvm, otherwise we get:

The 'host' CPU type can only be used with KVM or HVF



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