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Missing memory probing #114
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An expedient option would be to get the information from the bootloader. The multiboot specification includes information on how much memory the system has. This would make the dependency on grub/multiboot a hard one, though; but might be a good start. |
@dato big 👍 on that, multiboot should have all the info. I am fine with this. |
@dato do you by chance know how this is handled in (U)EFI systems? |
I’m still using BIOS for my x86_64 OS work, but it’s a similar story as Multiboot: it’s handed to you directly (in this case by EFI firmware), no need to do a special dance with BIOS services and interrupts to get it. You want, in particular, the -d |
In order to manage the memory, the OS should know how much it has. Extra information about reserved addresses and memory holes (maybe these are the same, I don't know yet), should also be taken into account.
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