iopl on ia32
change I/O privilege level
sys_iopl(unsigned int level)| number | 110 (0x6e) |
|---|---|
| abi | i386 |
| entry point | sys_iopl |
| since | Linux 3.3 or earlier (3.3 is the first release scanned for ia32) |
| man page | iopl(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
eax | 110, the syscall number |
ebx | unsigned int level |
eax | the return value |
Then run int 0x80 to enter the kernel.
This compat ABI is only available when the kernel is built with CONFIG_IA32_EMULATION.
Same syscall on other architectures
Get this as JSON: https://api.syscall.sh/v2/syscalls/ia32/iopl