Switching to SMM with FreeBSD 6.2 onwards

[Won De Erick]

Hi All,

I'm not quite familiar with FreeBSD, but I want to do the following in 6.2/7.1. 

  /* Raise IOPL to 3 to open all I/O ports */
  /* something like 'i386_iopl(3)' */
  ...

  /* Open SMRAM access */
  outl(unsigned int port, unsigned long int data);


Also, I appreciate comments on the following wrapper:

static inline outl(unsigned int port, unsigned long int data)
{
  asm("outl %0, %1" : : "a" (data), "dN" (port));
}


My goal is to switch the processor to SMM by triggering SMI from userland.


Thanks in advance,

Won