diff options
Diffstat (limited to 'kernel/src/sys/userspace_asm.S')
| -rw-r--r-- | kernel/src/sys/userspace_asm.S | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/src/sys/userspace_asm.S b/kernel/src/sys/userspace_asm.S index c722df0..5817a8c 100644 --- a/kernel/src/sys/userspace_asm.S +++ b/kernel/src/sys/userspace_asm.S @@ -1,6 +1,7 @@ .text .extern begin_userspace +.extern syscall_handler .global jump_userspace jump_userspace: @@ -11,6 +12,10 @@ jump_userspace: mov %ax, %gs mov $0xc0000082, %rcx + movabs $__syscall, %rax + shr $32, %rax + mov %eax, %edx + movabs $__syscall, %rax wrmsr mov $0xc0000080, %rcx rdmsr |