594c7255dc
GHES currently maps two pages with atomic_ioremap. From now on, NMI is architectural depended so there is no need to allocate an NMI page for platforms without NMI support. To make it possible to not use a second page, swap the existing page order so that the IRQ context page is first, and the optional NMI context page is second. Then, use HAVE_ACPI_APEI_NMI to decide how many pages are to be allocated. Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org> Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
63 lines
1.7 KiB
C
63 lines
1.7 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;
|
|
|
|
if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK)
|
|
return 0;
|
|
|
|
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);
|
|
}
|