diff options
| author | dzwdz | 2022-05-21 21:24:15 +0200 |
|---|---|---|
| committer | dzwdz | 2022-05-21 21:24:15 +0200 |
| commit | ef52650c4a0723b242deb72ce2726f6846a6e986 (patch) | |
| tree | bdf42a732d694a58cdae1ba8314ae98e096e2399 /src/kernel/proc.c | |
| parent | e0101ecf0d2f29d8860e865e3f333803af918f2e (diff) | |
kernel/i386: only map what's absolutely necessary in the user
Diffstat (limited to 'src/kernel/proc.c')
| -rw-r--r-- | src/kernel/proc.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/kernel/proc.c b/src/kernel/proc.c index 2b96c8f..636c237 100644 --- a/src/kernel/proc.c +++ b/src/kernel/proc.c @@ -26,10 +26,9 @@ struct process *process_seed(struct kmain_info *info) { pagedir_map(process_first->pages, (userptr_t)~PAGE_MASK, page_alloc(1), true, true); process_first->regs.esp = (userptr_t) ~0xF; - // map the kernel - // yup, .text is writeable too. the plan is to not map the kernel - // into user memory at all, but i'll implement that later. TODO - for (size_t p = 0x100000; p < (size_t)&_bss_end; p += PAGE_SIZE) + // map .text.early + extern char _text_early_len; + for (size_t p = 0; p < (size_t)&_text_early_len; p += PAGE_SIZE) pagedir_map(process_first->pages, (userptr_t)p, (void*)p, false, true); // map the init module as rw |