diff options
Diffstat (limited to 'arch/x86/entry/entry_64.S')
| -rw-r--r-- | arch/x86/entry/entry_64.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 237da6ced61b..e38a4cf795d9 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -108,7 +108,8 @@ SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL) /* IRQs are off. */ movq %rsp, %rdi - movq %rax, %rsi + /* Sign extend the lower 32bit as syscall numbers are treated as int */ + movslq %eax, %rsi call do_syscall_64 /* returns with IRQs disabled */ /* |