hw_x86_64: Switch to kernel page tables

After switching to the kernel address space the client context region is accessible to store the client register values.
2015-02-20 16:05:46 +01:00 · 2015-02-20 16:05:46 +01:00 · 3d782282db
parent 16496af371
commit 3d782282db
1 changed files with 4 additions and 0 deletions
--- a/repos/base-hw/src/core/spec/x86_64/mode_transition.s
+++ b/repos/base-hw/src/core/spec/x86_64/mode_transition.s
@ -77,6 +77,10 @@
 	/* Copy client context RAX to buffer */
 	mov %rax, _mt_buffer

+	/* Switch to kernel page tables */
+	mov _mt_master_context_begin+CR3_OFFSET, %rax
+	mov %rax, %cr3
+
 	1: jmp 1b

 	.global _mt_user_entry_pic