src/mainboard/intel/cannonlake_rvp/smihandler.c


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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

#include <arch/acpi.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <intelblocks/smihandler.h>
#include <soc/nvs.h>

int mainboard_io_trap_handler(int smif)
{
	switch (smif) {
	case 0x99:
		printk(BIOS_DEBUG, "Sample\n");
		smm_get_gnvs()->smif = 0;
		break;
	default:
		return 0;
	}

	/* On success, the IO Trap Handler returns 0
	 * On failure, the IO Trap Handler returns a value != 0
	 *
	 * For now, we force the return value to 0 and log all traps to
	 * see what's going on.
	 */
	return 1;
}