On Friday, September 27, 2019 8:01:42 AM MST Daniel P. Berrangé wrote:
On Fri, Sep 27, 2019 at 10:53:32AM -0400, Neal Gompa wrote:
> On Fri, Sep 27, 2019 at 8:30 AM Daniel P. Berrangé <berrange(a)redhat.com>
> wrote:
> >
> >
> > On Fri, Sep 27, 2019 at 01:26:09PM +0200, Jun Aruga wrote:
> >
> > > > Does anyone know of, or have, any critical/important use cases that
> > > > would
> > >
> > > be disrupted by QEMU dropping 32-bit *host* support ? If so, let me
> > > know
> > > here & I can forward feedback on. Or feel free to go direct to QEMU
> > > thread
> > > upstream.
> > >
> > >
> > >
> > > I am not a real user of ARM 32-bit. I just checked information for
> > > ARM
> > > 32-bit (armv7) use cases.
> > >
> > >
> > >
> > > ## Raspberry Pi
> > >
> > >
> > >
> > > >
https://en.wikipedia.org/wiki/Raspberry_Pi
> > > > The earlier V1.1 model of the Raspberry Pi 2 used a Broadcom BCM2836
> > > > SoC with a 900 MHz 32-bit, quad-core ARM Cortex-A7 processor, with
> > > > 256 KB shared L2 cache.
> > >
> > > >
> > > >
> > > >
https://www.raspberrypi.org/blog/raspberry-pi-2-on-sale/
> > >
> > >
> > >
> > > It seems that the version 1.1 is the last model for 32-bit, and the
> > > announcement was 5 August 2015.
> > > I assume a considerable number of people using ARM 32-bit Raspberry
> > > Pi.
> >
> >
> >
> > Right, but I'm rather sceptical that people are running QEMU on the
> > 32-bit RPi boards. I might be less surprised about the Linux userspace
> > emulation being used, vs full VM, since the former is lower overhead.
> >
> >
> >
>
>
> Sorry to burst your bubble, but since the Raspberry Pi performs quite
> badly as a 64-bit device for the moment, I've used it with Fedora
> armv7hl instead of aarch64. I personally use the user emulation
> mostly, but I know of a couple of cases where system emulation is used
> (mainly for buildsys stuff).
Interesting, is there a particular reason why you run the emulation on
a Pi, as opposed to using more powerful x86 hardware for it ? I'm not
saying you're wrong todo this, just trying to understand the motivation
people have.
Regards,
Daniel
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Perhaps the same reason that many people still run i686 based hardware, and
will be unable to use Fedora after the release of F31: Why fix what isn't
broken?
- -
John M. Harris, Jr.
Splentity