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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
/*
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* Arch-specific APEI-related functions.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <acpi/apei.h>
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#include <asm/mce.h>
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#include <asm/tlbflush.h>
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int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data)
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{
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#ifdef CONFIG_X86_MCE
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int i;
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struct acpi_hest_ia_corrected *cmc;
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struct acpi_hest_ia_error_bank *mc_bank;
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if (hest_hdr->type != ACPI_HEST_TYPE_IA32_CORRECTED_CHECK)
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return 0;
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cmc = (struct acpi_hest_ia_corrected *)hest_hdr;
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if (!cmc->enabled)
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return 0;
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/*
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* We expect HEST to provide a list of MC banks that report errors
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* in firmware first mode. Otherwise, return non-zero value to
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* indicate that we are done parsing HEST.
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*/
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if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) ||
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!cmc->num_hardware_banks)
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return 1;
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pr_info("HEST: Enabling Firmware First mode for corrected errors.\n");
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mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1);
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for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++)
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mce_disable_bank(mc_bank->bank_number);
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#endif
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return 1;
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}
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void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
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{
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#ifdef CONFIG_X86_MCE
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apei_mce_report_mem_error(sev, mem_err);
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#endif
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}
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void arch_apei_flush_tlb_one(unsigned long addr)
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{
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__flush_tlb_one(addr);
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}
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