|Page not present after TLB invalidation
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|Author:||snijj [ Sat Jan 12, 2019 11:46 pm ]|
|Post subject:||Page not present after TLB invalidation|
I've been working on a new paging implementation for my kernel for a few days now but have been running into some problems when creating a new page table. I'll list out the scenario that is causing the issue.
I have tested this behaviour in both BOCHS and QEMU and they both exhibit the same issue.
The paging implementation that I've got so far can be found at https://github.com/tjhancocks/vkernel/b ... 6/paging.c.
I'm not entirely sure why the linear address remains invalid after invalidating the page and/or updating CR3. But its probably something small that I'm missing and just not noticing.
Any help would be greatly appreciated, thanks!
|Author:||snijj [ Sun Jan 13, 2019 2:18 am ]|
|Post subject:||Re: Page not present after TLB invalidation|
I've managed to solve the issue myself. I had managed to accidentally create a duplicate of the page directory that had almost identical contents, but ever so slightly different. Enough to make the whole thing not work correctly.
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