[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Invalid accelerator kvm / error: kvm run failed Function not impleme

From: Mario Marietto
Subject: Re: Invalid accelerator kvm / error: kvm run failed Function not implemented ERRORS trying to virtualize a guest OS on the ARM Chromebook running with a relatively recent kernel version and KVM enabled
Date: Fri, 11 Aug 2023 12:33:55 +0200

ok. I will recompile a qemu version lower than 5.2. I've asked all around and someone says that I should use 5.1,someone else 4.9. Which version should I use ? And,please can you point me to a good tutorial that can teach me the procedure to recompile it ? I might find it by myself,but what I need is the place where I should grab the source code of qemu for armhf. I also need the compilation parameters :) thanks...

On Fri, Aug 11, 2023 at 12:01 PM Peter Maydell <peter.maydell@linaro.org> wrote:
On Thu, 10 Aug 2023 at 18:28, Mario Marietto <marietto2008@gmail.com> wrote:
> ---> You can't use KVM with the vexpress-a15 board. The only Arm guest machine that will work with KVM is the "virt" board.
> point 1)
> On the virtual open systems website they used the vexpress-a15 board. You can read by yourself what they say :

This virtual open systems guide is absolutely ancient: it must
be at least a decade old, and dates from the very early days of
KVM on Arm. I can't read the whole document, but
I would not be surprised if they were using a custom branch
of QEMU, or they might have been using a QEMU from
before we added emulation of TrustZone to that board (which
KVM can't emulate). You can see in the instructions that
they're using a custom branch of the guest kernel (and a
very ancient kernel).

It's not a very good guide to what will work today.

> On the devuan 4 host os that I have installed I'm using kernel 5.4,that's lower than 5.7,so the qemu support for it should be there.

It's in the kernel, but you're using a QEMU which has
dropped the support.

-- PMM


reply via email to

[Prev in Thread] Current Thread [Next in Thread]