Re: [Xen-devel] Mini-os port to ARM public repo

[Chen Baozi <baozich@xxxxxxxxx>]

On Jan 5, 2014, at 8:53, karim.allah.ahmed@xxxxxxxxx wrote:

> Hi,
> 
> I've mentioned earlier [0] that I was working on porting mini-os to arm and 
> Dario suggested making the sources public even if it was still in early 
> stages (and extremely experimental ).
> 
> So, here we go. I just published the sources on github
> https://github.com/KarimAllah/xen/tree/minios-arm-port

Bravo!

Baozi.

> 
> Currently as already mentioned, it's still in very early stages. So don't 
> expect too much. :)
> 
> Here's a list of things that has been done so far:
> * added a linker script for arm
> * building zImage for arm
> * adding hypercalls support for arm
> * map shared_info page
> ** currently only events_irq and vtimer_irq are enabled
> * binding to VIRQ_DEBUG ( very helpful to test events during porting the OS - 
> press 'q' through serial port to trigger it - )
> * included libfdt from freebsd to allow device tree parsing ( only built at 
> the moment, still not used by the code )
> * 1-1 virtual memory for whole virtual address space ( mapped as 1 Mb 
> descriptors )
> * exception handling ( support for only IRQ atm )
> * thread create/switch support for arm ( __arch_switch_threads, 
> create_thread, and run_idle_thread )
> * div and mod support for arm ( copied from freebsd )
> * wrote a trivial arm gic driver
> * wrote a trivial arm generic virtual timer driver ( using CompareValue to 
> trigger interrupts and update wallclock )
> * retrieving store pfn and event channel from hypervisor instead of 
> start_info page
> * trivial spinlock implementation for arm
> * porting os.h file to arm ( barrier, __cli, __sti, irqs_disabled, 
> local_irq_save, local_irq_restore, local_save_flags, and bit operations )
> 
> I've also created another list for *some* of the things that needs to be done 
> in ${xen}/extras/mini-os/ARM-TODO.txt in case any body is interested to pick 
> one of them.
> 
> 
> [0] 
> http://www.gossamer-threads.com/lists/xen/devel/312174?do=post_view_flat#312174
> 
> 
> Regards
> 
> -- 
> Karim Allah Ahmed.
> LinkedIn


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel