Query regarding booting kernel image on Linaro Qemu

[Peter Maydell]

On 23 November 2011 06:03, Jubi Taneja <jubitaneja at gmail.com> wrote:
> I found that QEMU's latest version that I used supports A15.
> https://launchpad.net/qemu-linaro/+milestone/2011.10
>
> New in this month's release:
>  - Instructions introduced with the Cortex-A15 (ARM mode
>    SDIV and UDIV, and the VFPv4 fused multiply-accumulate
>    instructions VFMA, VFMS, VFNMA, VFNMS) are now supported
>    in linux-user mode

No, it supports these instructions *in linux-user mode*.
You're trying to use QEMU in system mode, where A15 is
still not yet supported.

> For your reference, I am
> attaching the working (without LPAE support) and non-working (with LPAE
> support) .config files.

Working without LPAE and not-working with LPAE is completely the
expected behaviour.

> Also, as i told that without LPAE support, Kernel boots properly for VE A9
> or VE A15. But, I am not sure how to verify that it worked correctly for
> A15? I am looking for some cross checking method to ensure that it works for
> A15.

Boot the kernel on an A15 ARM Fast Model or an A15 FPGA.

-- PMM