hw_x86_64: Explicitly set up segment selectors during boot

2015-02-17 11:01:47 +01:00 · 2015-02-17 11:01:47 +01:00 · 51d515c77f
parent 65de09c7a6
commit 51d515c77f
1 changed files with 10 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
@ -63,6 +63,16 @@
 .code64
 	_start64: .p2align MIN_PAGE_SIZE_LOG2

+	/*
+	 * Set up kernel segment selectors
+	 */
+	mov $0x10, %eax
+	mov %eax, %ss
+	mov %eax, %ds
+	mov %eax, %es
+	mov %eax, %fs
+	mov %eax, %gs
+
 	/*
 	 * Install initial temporary environment that is replaced later by the
 	 * environment that init_main_thread creates.