linux/arch/x86/kernel/acpi/apei.c
Tomasz Nowicki 9f9a35a7b6 ACPI / APEI / ARM64: APEI initial support for ARM64
This patch provides APEI arch-specific bits for ARM64

Meanwhile,
 (1) Move HEST type (ACPI_HEST_TYPE_IA32_CORRECTED_CHECK) checking to
     a generic place.
 (2) Select HAVE_ACPI_APEI when EFI and ACPI is set on ARM64, because
     arch_apei_get_mem_attribute is using efi_mem_attributes() on
     ARM64.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Tested-by: Jonathan (Zhixiong) Zhang <zjzhang@codeaurora.org>
Signed-off-by: Fu Wei <fu.wei@linaro.org>
[ Fu Wei: improve && upstream ]
Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Tyler Baicar <tbaicar@codeaurora.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-02 00:24:34 +01:00

60 lines
1.6 KiB
C

/*
* Arch-specific APEI-related functions.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <acpi/apei.h>
#include <asm/mce.h>
#include <asm/tlbflush.h>
int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data)
{
#ifdef CONFIG_X86_MCE
int i;
struct acpi_hest_ia_corrected *cmc;
struct acpi_hest_ia_error_bank *mc_bank;
cmc = (struct acpi_hest_ia_corrected *)hest_hdr;
if (!cmc->enabled)
return 0;
/*
* We expect HEST to provide a list of MC banks that report errors
* in firmware first mode. Otherwise, return non-zero value to
* indicate that we are done parsing HEST.
*/
if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) ||
!cmc->num_hardware_banks)
return 1;
pr_info("HEST: Enabling Firmware First mode for corrected errors.\n");
mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1);
for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++)
mce_disable_bank(mc_bank->bank_number);
#endif
return 1;
}
void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
{
#ifdef CONFIG_X86_MCE
apei_mce_report_mem_error(sev, mem_err);
#endif
}
void arch_apei_flush_tlb_one(unsigned long addr)
{
__flush_tlb_one(addr);
}