summaryrefslogtreecommitdiff
path: root/src/cpu/x86/smm/smi_trigger.c
blob: 7e3ddb1613cbde6772dc4a95b68cd78a26ab6f04 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
/* SPDX-License-Identifier: GPL-2.0-only */

#include <arch/io.h>
#include <console/console.h>
#include <cpu/x86/smm.h>

int apm_control(u8 cmd)
{
	if (!CONFIG(HAVE_SMI_HANDLER))
		return -1;

	switch (cmd) {
	case APM_CNT_CST_CONTROL:
		break;
	case APM_CNT_PST_CONTROL:
		break;
	case APM_CNT_ACPI_DISABLE:
		printk(BIOS_DEBUG, "Disabling ACPI via APMC.\n");
		break;
	case APM_CNT_ACPI_ENABLE:
		printk(BIOS_DEBUG, "Enabling ACPI via APMC.\n");
		break;
	case APM_CNT_FINALIZE:
		printk(BIOS_DEBUG, "Finalizing SMM.\n");
		break;
	case APM_CNT_ELOG_GSMI:
		break;
	case APM_CNT_SMMSTORE:
		break;
	case APM_CNT_SMMINFO:
		break;
	default:
		break;
	}

	/* Now raise the SMI. */
	outb(cmd, APM_CNT);

	printk(BIOS_DEBUG, "APMC done.\n");
	return 0;
}