diff options
| -rw-r--r-- | x86/cstart.S | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/x86/cstart.S b/x86/cstart.S index fa62e09..5ad70b5 100644 --- a/x86/cstart.S +++ b/x86/cstart.S @@ -94,6 +94,15 @@ MSR_GS_BASE = 0xc0000101 wrmsr .endm +.macro setup_segments + mov $0x10, %ax + mov %ax, %ds + mov %ax, %es + mov %ax, %fs + mov %ax, %gs + mov %ax, %ss +.endm + .globl start start: mov $stacktop, %esp @@ -109,6 +118,7 @@ start: prepare_32: lgdtl gdt32_descr + setup_segments mov %cr4, %eax bts $4, %eax // pse @@ -133,12 +143,7 @@ save_id: retl ap_start32: - mov $0x10, %ax - mov %ax, %ds - mov %ax, %es - mov %ax, %fs - mov %ax, %gs - mov %ax, %ss + setup_segments mov $-4096, %esp lock/xaddl %esp, smp_stacktop setup_percpu_area |