qemu armv7a

qemu armv7a

[Foinel]

Hello,
the default qemuarm build seems to be building for ARM926EJ-S as it
requires tune-arm926ejs.
Has anybody tried to build for armv7a (cortex a9) ? Have tried it
myself, by modifying the qemuarf.conf to require tune-cortexa9.inc
instead of tune-arm926ejs but the qemu machine won't boot anymore, it
just stays blank.
Any ideas, thoughts, suggestions regarding this would be appreciated.

Thanks

Re: qemu armv7a

[Mark Hatle]

On 12/19/11 2:48 AM, Foinel wrote:
> Hello,
> the default qemuarm build seems to be building for ARM926EJ-S as it
> requires tune-arm926ejs.
> Has anybody tried to build for armv7a (cortex a9) ? Have tried it
> myself, by modifying the qemuarf.conf to require tune-cortexa9.inc
> instead of tune-arm926ejs but the qemu machine won't boot anymore, it
> just stays blank.
> Any ideas, thoughts, suggestions regarding this would be appreciated.

The emulated QEMU machine is an arm926ej-s emulated ARM Versatile platform.

AFAIK, cortex a9 isn't supported in that version of QEMU, nor the emulated 
virtual platforms required to support the a9 either.

--Mark

Re: qemu armv7a

[Khem Raj]

On Mon, Dec 19, 2011 at 12:48 AM, Foinel <flocirel@gmail.com> wrote:
> Hello,
> the default qemuarm build seems to be building for ARM926EJ-S as it
> requires tune-arm926ejs.
> Has anybody tried to build for armv7a (cortex a9) ? Have tried it
> myself, by modifying the qemuarf.conf to require tune-cortexa9.inc
> instead of tune-arm926ejs but the qemu machine won't boot anymore, it
> just stays blank.
> Any ideas, thoughts, suggestions regarding this would be appreciated.
>

on oe-core linux-yocto is used to provide kernel for supported machines
and it does not yet have configuration support for say qemu with
cortex-a9 emulation.
so you will need kernel support so either add it to linux-yocto and then
let the tooling figure it out from machine.conf something like
qemucortex-a9 or somesuch

or you can have your own BSP which primarily with provide machine
configuration for qemu
emulating cortex-a9

> Thanks
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