Re: Is there any KVM-enabled kernel for android i can find ?

From: Marc Zyngier <maz@kernel.org>
To: aaditya singh <aaditya99983@gmail.com>
Cc: kvmarm@lists.cs.columbia.edu
Subject: Re: Is there any KVM-enabled kernel for android i can find ?
Date: Fri, 27 Aug 2021 09:02:03 +0100	[thread overview]
Message-ID: <87y28nnwn8.wl-maz@kernel.org> (raw)
In-Reply-To: <CAKy_CfD3gYk4ErTP=PaGScj06onymhQ8mosQY1=NDARC+HOpbQ@mail.gmail.com>

On Fri, 27 Aug 2021 03:25:00 +0100,
aaditya singh <aaditya99983@gmail.com> wrote:

Hi Aaditya,

> I'm Aaditya, a student at NYU, currently i was working on putting
> kvm-enabled android kernel for our project and was wondering if you guys
> can help with, would be grateful if you can share the instructions on how
> to install kvm-enabled kernels ?

I'm afraid your question is pretty ambiguous. What do you call a
KVM-enabled kernel? Do you mean as a KVM host? Or as a guest? The fact
that this is Android is pretty much irrelevant as far as KVM is
concerned.

Enabling a KVM guest requires nothing in particular. You only need the
required drivers that match what your VMM is offering as a
platform. Any distro kernel will probably run out of the box.

Enabling a KVM host is just a matter of selecting CONFIG_KVM in your
kernel configuration and installing the kernel.

There are however a bunch of requirements for that host kernel to be
able to serve as a hypervisor. The firmware has to boot the kernel in
the right context (EL2), and most of the Android-based devices are not
exactly cooperative on that front.

It would certainly help if you could more exactly detail what you are
after, as there are no pre-canned answers to your questions.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.
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