hw_x86_64: Perform indirect long jump to 64-bit code

2015-02-11 16:38:51 +01:00 · 2015-02-11 16:38:51 +01:00 · 0f624cdde7
parent 15d0e86592
commit 0f624cdde7
1 changed files with 6 additions and 0 deletions
--- a/repos/base-hw/src/core/spec/x86_64/kernel/crt0.s
+++ b/repos/base-hw/src/core/spec/x86_64/kernel/crt0.s
@ -57,6 +57,12 @@
 	/* Set up GDT */
 	lgdt _gdt_ptr

+	/* Indirect long jump to 64-bit code */
+	ljmp $8, $_start64
+
+.code64
+	_start64: .p2align MIN_PAGE_SIZE_LOG2
+
 	/*
 	 * Install initial temporary environment that is replaced later by the
 	 * environment that init_main_thread creates.