From f2a0c7595bf805cd53001984495e4db0268f5f98 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Mon, 19 Jul 2021 18:17:50 +0200
Subject: very basic paging

---
 src/kernel/main.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

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

diff --git a/src/kernel/main.c b/src/kernel/main.c
index 7f49fed..1b5e504 100644
--- a/src/kernel/main.c
+++ b/src/kernel/main.c
@@ -8,10 +8,26 @@
 
 void r3_test();
 
+static void setup_paging() {
+	struct pagedir *dir = pagedir_new();
+
+	// map VGA
+	pagedir_map(dir, 0xB8000, 0xB8000, true, true);
+
+	// map the kernel
+	for (size_t p = 0x100000; p < &_bss_end; p += PAGE_SIZE)
+		pagedir_map(dir, p, p, false, true); // yes, .text is writeable too
+
+	pagedir_use(dir);
+}
+
 void kmain(struct kmain_info info) {
 	log_const("mem...");
 	mem_init(&info);
 
+	log_const("paging...");
+	setup_paging();
+
 	log_const("creating process...");
 
 	void *init_addr = (void*)0x200000;
-- 
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