33 lines
745 B
C
33 lines
745 B
C
/*
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* EFI application tables support
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*
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* Copyright (c) 2016 Alexander Graf
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <efi_loader.h>
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#include <inttypes.h>
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#include <smbios.h>
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static const efi_guid_t smbios_guid = SMBIOS_TABLE_GUID;
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void efi_smbios_register(void)
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{
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/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
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uint64_t dmi = 0xffffffff;
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/* Reserve 4kb for SMBIOS */
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uint64_t pages = 1;
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int memtype = EFI_RUNTIME_SERVICES_DATA;
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if (efi_allocate_pages(1, memtype, pages, &dmi) != EFI_SUCCESS)
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return;
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/* Generate SMBIOS tables */
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write_smbios_table(dmi);
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/* And expose them to our EFI payload */
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efi_install_configuration_table(&smbios_guid, (void*)(uintptr_t)dmi);
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}
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