justin/jsix
1
1
Fork 0
mirror of https://github.com/justinian/jsix.git synced 2025-12-10 08:24:32 -08:00
Code Issues Packages Projects Releases Wiki Activity

[kernel] Set process stack pointer correctly

Browse Source 
The rsp returned by initialize_main_user_stack() needs to be put into
the cpu data area, not just put into the stack (the stack only fills in
rbp).
This commit is contained in:
Justin C. Miller
2021-02-03 17:01:19 -08:00
parent e4c8a36577
commit 2244764777
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
src/kernel/task.s
View File

@@ -63,6 +63,7 @@ initialize_main_thread:
; user rsp is now in rax, put it in the right place for sysret ; user rsp is now in rax, put it in the right place for sysret
mov [rsp + 0x30], rax mov [rsp + 0x30], rax
mov [gs:CPU_DATA.rsp3], rax
; the entrypoint should already be on the stack ; the entrypoint should already be on the stack
jmp kernel_to_user_trampoline jmp kernel_to_user_trampoline