move the kernel to 0x80000000

15997d58 · Robert Morris · 5c292b3d · 15997d58 · 15997d58 · 15997d58
--- a/bootmain.c
+++ b/bootmain.c
@@ -43,7 +43,7 @@ bootmain(void)

  // Call the entry point from the ELF header.
  // Does not return!
-  entry = (void(*)(void))(elf->entry & 0xFFFFFF);
+  entry = (void(*)(void))(elf->entry - KERNBASE);
  entry();
 }


--- a/kernel.ld
+++ b/kernel.ld
@@ -8,7 +8,8 @@ ENTRY(_start)
 SECTIONS
 {
 	/* Load the kernel at this address: "." means the current address */
-	. = 0xF0100000;
+        /* Must be equal to KERNLINK */
+	. = 0x80100000;

 	.text : AT(0x100000) {
 		*(.text .stub .text.* .gnu.linkonce.t.*)

--- a/memlayout.h
+++ b/memlayout.h
@@ -5,7 +5,7 @@
 #define DEVSPACE 0xFE000000         // Other devices are at high addresses

 // Key addresses for address space layout (see kmap in vm.c for the layout)
-#define KERNBASE 0xF0000000         // First kernel virtual address
+#define KERNBASE 0x80000000         // First kernel virtual address
 #define KERNLINK (KERNBASE+EXTMEM)  // Address where kernel is linked

 #ifndef __ASSEMBLER__