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| author | Aleksa Vuckovic <aleksav013@gmail.com> | 2022-09-07 22:10:02 +0200 |
|---|---|---|
| committer | Aleksa Vuckovic <aleksav013@gmail.com> | 2022-09-07 22:24:29 +0200 |
| commit | 1effe3b9ac0bb1a819f6ae5ebb8438e60b77f9a2 (patch) | |
| tree | 33db19103b338938928f7813f0ca2a16073e7d0c /kernel/src/sys/userspace_asm.S | |
| parent | 956bb743a3ba6939aaff2372fc45628cda6a9840 (diff) | |
syscall
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 |