diff options
| -rw-r--r-- | cstart.S | 1 | ||||
| -rw-r--r-- | linuxboot.c | 4 |
2 files changed, 4 insertions, 1 deletions
@@ -30,6 +30,7 @@ gdt32: .quad 0x00cf9b000000ffff // flat 32-bit code segment .quad 0x00cf93000000ffff // flat 32-bit data segment .quad 0x000f9b0f0000ffff // 64K 16-bit code segment at 0xF0000 + .quad 0x000f93000000ffff // 64K 16-bit data segment at 0x0 gdt32_end: gdt32_descr: diff --git a/linuxboot.c b/linuxboot.c index cc64811..9671fd7 100644 --- a/linuxboot.c +++ b/linuxboot.c @@ -130,7 +130,9 @@ void boot_bzimage(struct linuxboot_args *args) */ asm("pm16_boot_linux:" ".code16;" - "mov $0, %eax; mov %eax, %cr0;" + "mov $0x20, %ax; mov %ax, %ds; mov %ax, %es;" + "mov %ax, %fs; mov %ax, %gs; mov %ax, %ss;" + "xor %eax, %eax; mov %eax, %cr0;" "ljmpl $0xf000, $(1f - 0xf0000); 1:" "mov %bx, %ds; mov %bx, %es;" "mov %bx, %fs; mov %bx, %gs; mov %bx, %ss;" |