loading 'VIRT' kernel in qemu

[Oleksandr Tymoshenko]

> On Dec 30, 2016, at 2:55 AM, Michael Tuexen <tuexen at fh-muenster.de> wrote:
> 
>> On 30 Dec 2016, at 09:14, Oleksandr Tymoshenko <gonzo at bluezbox.com> wrote:
>> 
>> 
>>> On Dec 29, 2016, at 5:25 PM, Oleksandr Tymoshenko <gonzo at bluezbox.com> wrote:
>>> 
>>> 
>>>> On Dec 29, 2016, at 5:12 AM, Jason Harmening <jason.harmening at gmail.com> wrote:
>>>> 
>>>> 
>> .. skipped ..
>>>> 
>>>> Ah, thanks!  That should make things a good deal easier.
>>>> Using the nanobsd-generated images and the qemu invocation from qemu-armv7.cfg, I get a bit further but end up with a repeating prefetch abort:
>>>> Prefetch Abort Exception PC at 0xFF176790  CPSR 0x80000113
>>>> 
>>>> This is either in UEFI or very early in kernel bootstrap, since the copyright hasn't printed yet...haven't poked at it to figure out where the pc comes from yet.
>>> 
>>> Looks like it's boot1.efi. After upgrading to clang 3.9.0 -fPIC is required to  build loader. In addition to this problem there seems to be some error when calculating value for relocation. Looks like it’s going to take a bit of time to track down, I can’t identify it immediately.  
>> 
>> 
>> Hi Jason,
>> 
>> I think I fixed the PIC problem along with FDT-related one:
>> https://people.freebsd.org/~gonzo/arm/patches/arm-uefi.diff
> Any plan to get this into head?

Yes, I’ll submit this patch to Phabricator and it’ll be committed to
HEAD when/if it passes the review.