Re: [Qemu-devel] [PATCH] Add MIPS ELF loader

[Dirk Behme <dirk.behme@googlemail.com>]

Thiemo Seufer wrote:
> On Tue, Mar 28, 2006 at 08:57:15AM +0200, Dirk Behme wrote:
>>What about the patch in attachment? It first tries to load
>>image as an ELF file. If this fails it falls back to raw
>>image load. Additionally, it takes feature of patch above to
>>go on even if no BIOS is found.
> 
> 
> A slightly more polished version with less noisy messages is appended.
> It also adjusts the ramdisk load address to physical addressing,
> similiar to the binary kernel load.

One question I just found:

If we go on if no BIOS is found/executed and we load some 
stuff to e.g. 0x80010000, where is the default address 
translation made? As I understand MIPS, code in kseg0 
(0x80000000) and kseg1 (0xA0000000) should be executable 
without MMU/TLB setup because it is mapped by default to 
physical 0x0. But looks to me that I get a

cpu_mips_handle_mmu_fault pc 80010000 ad 80010000 rw 2 
is_user 0 smmu 1

for it.

Dirk