1/*
 2 * Arch-specific APEI-related functions.
 3 *
 4 * This program is free software; you can redistribute it and/or modify
 5 * it under the terms of the GNU General Public License as published by
 6 * the Free Software Foundation; either version 2 of the License, or
 7 * (at your option) any later version.
 8 *
 9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 */
14
15#include <acpi/apei.h>
16
17#include <asm/mce.h>
18#include <asm/tlbflush.h>
19
20int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data)
21{
22#ifdef CONFIG_X86_MCE
23	int i;
24	struct acpi_hest_ia_corrected *cmc;
25	struct acpi_hest_ia_error_bank *mc_bank;
26
27	cmc = (struct acpi_hest_ia_corrected *)hest_hdr;
28	if (!cmc->enabled)
29		return 0;
30
31	/*
32	 * We expect HEST to provide a list of MC banks that report errors
33	 * in firmware first mode. Otherwise, return non-zero value to
34	 * indicate that we are done parsing HEST.
35	 */
36	if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) ||
37	    !cmc->num_hardware_banks)
38		return 1;
39
40	pr_info("HEST: Enabling Firmware First mode for corrected errors.\n");
41
42	mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1);
43	for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++)
44		mce_disable_bank(mc_bank->bank_number);
45#endif
46	return 1;
47}
48
49void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
50{
51#ifdef CONFIG_X86_MCE
52	apei_mce_report_mem_error(sev, mem_err);
53#endif
54}