From 82e9f02aef1ea1a6588234ee58e3625e3561005f Mon Sep 17 00:00:00 2001 From: Aleksa Vuckovic Date: Thu, 8 Sep 2022 14:37:47 +0200 Subject: higher half in x86_64 kernel is now located at -2GB heap blocks are aligned on block size paging will allocate new page tables on heap --- kernel/src/mem/paging_asm.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/src/mem/paging_asm.S') diff --git a/kernel/src/mem/paging_asm.S b/kernel/src/mem/paging_asm.S index c7e11f3..e7c7814 100644 --- a/kernel/src/mem/paging_asm.S +++ b/kernel/src/mem/paging_asm.S @@ -1,6 +1,6 @@ .section .text -.set KERNEL_VMA, 0xc0000000 +.set KERNEL_VMA, 0xffffffff80000000 .global load_pt_lvl4 load_pt_lvl4: @@ -8,7 +8,7 @@ load_pt_lvl4: mov %rsp, %rbp push %r12 - mov $KERNEL_VMA, %r12 + movabs $KERNEL_VMA, %r12 sub %r12, %rdi mov %rdi, %cr3 pop %r12 -- cgit v1.2.3