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hux-kernel's Introduction

Hi there ๐Ÿ‘‹, welcome!

Check out my personal homepage at https://josehu.com ๐Ÿ˜Ž

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hux-kernel's Issues

Wiki Paging suggestion

Hi there it's me again ๐Ÿ‘‹

In https://github.com/josehu07/hux-kernel/wiki/10.-Two-Level-Paging-Setup#frame-allocation-bitmap it feels like instead of

We create an array of uint32_t's, where each integer element is essentially an array of 32 bits.

you meant

We create an array of uint8_t's, where each integer element is essentially an array of 8 bits.

as this is how struct bitmap is defined.

By the way, is it ok to provide suggestions here? Can I ping you on IRC by any chance?

Memory question

Hi there, thank you so much as I'm learning a lot from your project! I am currently tackling paging.

I have a question about this line

if (kheap_curr + size > KMEM_MAX)

Something I'm not sure to understand is: while kheap_curr is initialized to a page-aligned memory address right after the kernel, which itself is loaded to 1MiB, we compare kheap_curr to something that looks like a quantity:

#define KMEM_MAX 0x00800000     /** 8MiB reserved for the kernel. */

In practice, KMEM_MAX is used as an address, and the comment should read something like: /* Max address reserved for the kernel */.

What am I missing?

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