From ef52650c4a0723b242deb72ce2726f6846a6e986 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sat, 21 May 2022 21:24:15 +0200
Subject: kernel/i386: only map what's absolutely necessary in the user

---
 src/kernel/proc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'src/kernel/proc.c')

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
-- 
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