SmiTrigger

C++ SMI trigger Linux (root)

test

#include <sys/io.h> #include <stdio.h> #include <stdlib.h>

int main() { // Request permission to access port 0xB2 if (ioperm(0xB2, 1, 1)) { perror("ioperm"); return 1; }

// Write to port 0xB2 to trigger SMI
printf("Triggering Software SMI...\n");
outb(0x00, 0xB2); // 0x00 is a sample command, depends on BIOS

// Release permission
ioperm(0xB2, 1, 0);
return 0;

}

windows user mode (python)

Using inpoutx64.dll (place in same folder or system32)

from ctypes import windll, c_ubyte

inpout = windll.LoadLibrary("inpoutx64.dll") inpout.Out32(0xB2, 0x00) # Triggers SMI with code 0x00