1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Arch-specific APEI-related functions.
 
 
 
 
 
 
 
 
 
 
 4 */
 5
 6#include <acpi/apei.h>
 7
 8#include <asm/mce.h>
 9#include <asm/tlbflush.h>
10
11int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data)
12{
13#ifdef CONFIG_X86_MCE
14	int i;
15	struct acpi_hest_ia_corrected *cmc;
16	struct acpi_hest_ia_error_bank *mc_bank;
17
 
 
 
18	cmc = (struct acpi_hest_ia_corrected *)hest_hdr;
19	if (!cmc->enabled)
20		return 0;
21
22	/*
23	 * We expect HEST to provide a list of MC banks that report errors
24	 * in firmware first mode. Otherwise, return non-zero value to
25	 * indicate that we are done parsing HEST.
26	 */
27	if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) ||
28	    !cmc->num_hardware_banks)
29		return 1;
30
31	pr_info("HEST: Enabling Firmware First mode for corrected errors.\n");
32
33	mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1);
34	for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++)
35		mce_disable_bank(mc_bank->bank_number);
36#endif
37	return 1;
38}
39
40void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
41{
42#ifdef CONFIG_X86_MCE
43	apei_mce_report_mem_error(sev, mem_err);
44#endif
 
 
 
 
 
45}

 
 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	if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK)
28		return 0;
29
30	cmc = (struct acpi_hest_ia_corrected *)hest_hdr;
31	if (!cmc->enabled)
32		return 0;
33
34	/*
35	 * We expect HEST to provide a list of MC banks that report errors
36	 * in firmware first mode. Otherwise, return non-zero value to
37	 * indicate that we are done parsing HEST.
38	 */
39	if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) ||
40	    !cmc->num_hardware_banks)
41		return 1;
42
43	pr_info("HEST: Enabling Firmware First mode for corrected errors.\n");
44
45	mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1);
46	for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++)
47		mce_disable_bank(mc_bank->bank_number);
48#endif
49	return 1;
50}
51
52void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
53{
54#ifdef CONFIG_X86_MCE
55	apei_mce_report_mem_error(sev, mem_err);
56#endif
57}
58
59void arch_apei_flush_tlb_one(unsigned long addr)
60{
61	__flush_tlb_one(addr);
62}