[people/ms/u-boot.git] / lib / efi_loader / efi_smbios.c

/*
 *  EFI application tables support
 *
 *  Copyright (c) 2016 Alexander Graf
 *
 *  SPDX-License-Identifier:     GPL-2.0+
 */

#include <common.h>
#include <efi_loader.h>
#include <inttypes.h>
#include <smbios.h>

static const efi_guid_t smbios_guid = SMBIOS_TABLE_GUID;

void efi_smbios_register(void)
{
	/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
	uint64_t dmi = 0xffffffff;
	/* Reserve 4kb for SMBIOS */
	uint64_t pages = 1;
	int memtype = EFI_RUNTIME_SERVICES_DATA;

	if (efi_allocate_pages(1, memtype, pages, &dmi) != EFI_SUCCESS)
		return;

	/* Generate SMBIOS tables */
	write_smbios_table(dmi);

	/* And expose them to our EFI payload */
	efi_install_configuration_table(&smbios_guid, (void*)(uintptr_t)dmi);
}
Commit	Line	Data
e663b350 AG	1	/*
	2	* EFI application tables support
	3	*
	4	* Copyright (c) 2016 Alexander Graf
	5	*
	6	* SPDX-License-Identifier: GPL-2.0+
	7	*/
	8
	9	#include <common.h>
	10	#include <efi_loader.h>
	11	#include <inttypes.h>
	12	#include <smbios.h>
	13
	14	static const efi_guid_t smbios_guid = SMBIOS_TABLE_GUID;
	15
	16	void efi_smbios_register(void)
	17	{
	18	/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
	19	uint64_t dmi = 0xffffffff;
	20	/* Reserve 4kb for SMBIOS */
	21	uint64_t pages = 1;
	22	int memtype = EFI_RUNTIME_SERVICES_DATA;
	23
	24	if (efi_allocate_pages(1, memtype, pages, &dmi) != EFI_SUCCESS)
	25	return;
	26
	27	/* Generate SMBIOS tables */
	28	write_smbios_table(dmi);
	29
	30	/* And expose them to our EFI payload */
	31	efi_install_configuration_table(&smbios_guid, (void*)(uintptr_t)dmi);
	32	}