Linking to a High Address
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shadrak
Linking to a High Address
I want to link my kernel to a high address such as 0xC0000000, with the help of Tim's tutorial i have managed to load my kernel at 0x100000 but link it to 0xC0000000 with the GDT base being 0x40100000. The problem arises when i attempt to map 0x100000 to 0xC0000000, i get a crash and a bogus memory error (from bochs). I have been subtracting the base and what not from my pointers (not from global var addr's) and what not. So what could the problem be?
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Anton
RE:Linking to a High Address
It seems that you are not talking about virtual memory, so ... How much ram do you have? 4G? You need to use virtual adresses to map memory at 0xC0000000, unless you realy have that much ram.
Anton.
Anton.
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shadrak
RE:Linking to a High Address
No im talking about virtual memory, im using that base so my addresses will be ok UNTIL i map 0xC0000000 to 0x100000, (the virtual part) Thats where its getting messed up. (when i set the paging bit)