refactor: re-structure the kernel address space for a more integral layout.

[lunaix-os.git] / lunaix-os / kernel / asm / x86 / pfault.c

diff --git a/lunaix-os/kernel/asm/x86/pfault.c b/lunaix-os/kernel/asm/x86/pfault.c
index 3ad640e9a0e84588bcb03e9324df3d7608b7ae8e..34589cbe6685fc60b49aeb65fcf95819cef4e4cf 100644 (file)
--- a/lunaix-os/kernel/asm/x86/pfault.c
+++ b/lunaix-os/kernel/asm/x86/pfault.c
@@ -20,8 +20,6 @@ kprintf(const char* fmt, ...)
 extern void
 __print_panic_msg(const char* msg, const isr_param* param);
 
-extern void __kernel_heap_start;
-
 void
 intr_routine_page_fault(const isr_param* param)
 {
@@ -98,7 +96,7 @@ int
 do_kernel(v_mapping* mapping)
 {
     uintptr_t addr = mapping->va;
-    if (addr >= &__kernel_heap_start && addr < L2_BASE_VADDR) {
+    if (addr >= KHEAP_START && addr < PROC_START) {
         // This is kernel heap page
         uintptr_t pa = pmm_alloc_page(KERNEL_PID, 0);
         *mapping->pte = (*mapping->pte & 0xfff) | pa | PG_PRESENT;