Hello,
I don't have so much experience with the L4-Kernel yet and got some Questions.
I am working on IA32 and Kernel-Verion 0.4.0:
1: Is there a way, to get the address of a UTCB area of an address space or do
I have to store/remember it after creation of the address space?
I've read there is just a hack with MyLocalId() to get the UTCB area of the
root-task. Is that a technical issue or shouldn't I just get it?
2: In which parts of the memory I am generally allowed to write after startup,
without accidently overwriting important data? Do I have the entire Virtual
Memory? Here is a part of my KIP:
Memory regions (17):
Physical: 0x00000000 - 0xffffffff shared
0x00000000 - 0x0009efff conventional
0x0009f000 - 0x0009ffff architecture specific (2)
0x000e8000 - 0x000fffff architecture specific (2)
0x00100000 - 0x07feffff conventional
0x07ff0000 - 0x07ffffff architecture specific (3)
0xfffbc000 - 0xfffbffff architecture specific (2)
0xfffc0000 - 0xffffffff architecture specific (2)
0x06ff0000 - 0x07feffff reserved
0x000a0000 - 0x000bffff shared
0x000c0000 - 0x000effff shared
0x00020000 - 0x000297ff bootloader specific (2)
0x00300000 - 0x003037ff bootloader specific (2)
0x00001000 - 0x00001fff bootloader specific (1)
0x00002000 - 0x00002fff bootloader specific (1)
0x00100000 - 0x00141fff reserved
Virtual: 0x00000000 - 0xbfffffff conventional
Memory regions:
Main mem 0x00000000 - 0x00000000
Reserved mem0 0x00100200 - 0x00142000
Reserved mem1 0x00000000 - 0x00000000
Dedicated mem0 0x00000000 - 0x00000000
Dedicated mem1 0x00000000 - 0x00000000
Dedicated mem2 0x00000000 - 0x00000000
Dedicated mem3 0x00000000 - 0x00000000
Dedicated mem4 0x00000000 - 0x00000000
Where is the root-tasks data? Is it in the Reserved mem0?
3: How do I set/manipulate local ThreadIds? ThreadControl() is just working
with global IDs. After creation of Threads, all local IDs are 0, this shouldn't
be, right?
Thank you very much,
Gnuffel
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