QEMU A15 guest writeup

[Peter Maydell]

On 25 January 2012 03:40, Michael Hope <michael.hope at linaro.org> wrote:
> Peter, could you review:
>  https://wiki.linaro.org/WorkingGroups/ToolChain/QEMUARMGuestQ411
>
> please?  I'm interesting in anything I've missed or exaggerated.  The
> audience is the TSC or people outside Linaro who are interested in a
> summary of the changes.

Mostly looks OK, I think.

One major point:

* I think we should make sure we include a list of the caveats about
the vexpress-a15 model. To steal some text from a mail I sent linaro-dev
a little while back:

 * the A15 CPU emulated will *not* include emulation of LPAE,
  Virtualization extensions or TrustZone; you can boot a Linux
  kernel compiled for A15-without-LPAE, but this is definitely
  not going to be of any use to you if you wanted to test
  Xen/KVM/hypervisor type code on a model.
 * this is not (at least initially) going to be a "supported"
  platform model for Linaro, as it is primarily intended to
  help us as we work on KVM for the Cortex-A15. So you can try
  it but we don't promise to do anything if it doesn't work :-)
 * there is not as yet any Linaro "hardware pack" for the A15,
  so you will be on your own for putting together a kernel,
  user space, etc.

You might want to rephrase some of that for this audience, but
I think we should be clear that when we say we've done a
"vexpress-a15" model we don't mean that it is a complete
model or that we intend to support it as a Linaro platform yet.

And some nits:

* You say
 git://git.qemu.org/qemu.git rev 77b63650b4986914c5591bbb45855b02d7102db5
but that git commit isn't in upstream qemu.git, it's a qemu-linaro commit.

* the "and" is misplaced in the credits list at the bottom

-- PMM