ML is cc'ed cuz there is some good instrumentation tricks below.
It should concern us all that an any code we stuff in a domain can
bring fron the whole box, so this is certainly relevant to the list.
For those who do not know, some IBM researchers are trying to get a
non-Linux OS running on XenPPC as a DomU
On Aug 24, 2006, at 12:03 AM, Orran Y Krieger wrote:
I got basic initialization, facts, did a few pritnfs after, and if
I put in a while 1... i am able to see stuff on cosole.
Unfortuantely, if I don't it crashes xen before I can get console
up :-)
Are you posting an event from libOS?
May I suggest, for bringup, to put:
int do_map_myself = 0;
!!! In your testos (not crt_init.c)
This will make your OS run 100% real mode, and will not use any MMU
hcalls
Then in xen:arch/powerpc/hcalls.c printk all hcalls you see that are
not Dom0 and not console.
braket your printk with
console_start_sync();
printk(...);
console_end_sync();
to make sure your that output is not buffered
-JX
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