Subject: Re: [RFC PATCH 0/5] Removing support for 32bit KVM/arm host

From: Marc Zyngier <[email-masked]>
Date: Thu, 20 Feb 2020 13:15:09 +0000

Hi Marek,

On 2020-02-20 12:44, Marek Szyprowski wrote:
> Hi Marc,
> 
> On 10.02.2020 15:13, Marc Zyngier wrote:
>> KVM/arm was merged just over 7 years ago, and has lived a very quiet
>> life so far. It mostly works if you're prepared to deal with its
>> limitations, it has been a good prototype for the arm64 version,
>> but it suffers a few problems:
>> 
>> - It is incomplete (no debug support, no PMU)
>> - It hasn't followed any of the architectural evolutions
>> - It has zero users (I don't count myself here)
>> - It is more and more getting in the way of new arm64 developments
> 
> That is a bit sad information. Mainline Exynos finally got everything
> that was needed to run it on the quite popular Samsung Exynos5422-based
> Odroid XU4/HC1/MC1 boards. According to the Odroid related forums it is
> being used. We also use it internally at Samsung.

Something like "too little, too late" springs to mind, but let's be
constructive. Is anyone using it in a production environment, where
they rely on the latest mainline kernel having KVM support?

The current proposal is to still have KVM support in 5.6, as well as
ongoing support for stable kernels. If that's not enough, can you please
explain your precise use case?

         M.
-- 
Jazz is not dead. It just smells funny...

_______________________________________________
linux-arm-kernel mailing list
[email-masked]
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel