在2024年5月21日五月 下午6:32，Ilias Apalodimas写道： [...]
What's ventoy? Googling it seems to be a tool for writing images?
It's a sophisticated EFI application designed for network booting, more file system support etc...
It's nearly impossible to run MIPS OS in virtual (or paged) segment. All MIPS OS and bootloaders are running in KSEG/XKPHYS segment, which directly mapping lower bits of virtual address into physical address. So I suppose set_virtual_address_map is unnecessary on MIPS because the mapping for U-Boot is always here and can't be disabled in hardware.
Fair enough, I am not too happy with the restriction but I think it's ok to start with
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hrrm any idea why? Was that a pre-existing state in mips? Perhaps we can fix it in the future.
Yes, I think that's because on some MIPS ISA reversion we don't have PC-Relative addressing instruction, which makes MIPS's PIC ABI really awkward. That's why Kernel choose to use such relocation mechanism.
At U-Boot we are just following kernel for now. It might be possible to switch to standard -fPIC relocation. But I'd prefer just leave it at this point.
That being said, I was away on a conference, I'll have a look at the mips patches, but probably next week
Much appreciated!
Thanks
Cheers /Ilias
Thanks
Thanks /Ilias
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- Jiaxun