mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
c193d9bd28
SMBIOS tables only support 32bit addresses. If we don't have memory here handle the error gracefully: * on x86_64 fail to start U-Boot * during UEFI booting ignore the missing table Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* EFI application tables support
|
|
*
|
|
* Copyright (c) 2016 Alexander Graf
|
|
*/
|
|
|
|
#define LOG_CATEGORY LOGC_EFI
|
|
|
|
#include <common.h>
|
|
#include <efi_loader.h>
|
|
#include <log.h>
|
|
#include <mapmem.h>
|
|
#include <smbios.h>
|
|
|
|
static const efi_guid_t smbios_guid = SMBIOS_TABLE_GUID;
|
|
|
|
/*
|
|
* Install the SMBIOS table as a configuration table.
|
|
*
|
|
* @return status code
|
|
*/
|
|
efi_status_t efi_smbios_register(void)
|
|
{
|
|
/* Map within the low 32 bits, to allow for 32bit SMBIOS tables */
|
|
u64 dmi_addr = U32_MAX;
|
|
efi_status_t ret;
|
|
void *dmi;
|
|
|
|
/* Reserve 4kiB page for SMBIOS */
|
|
ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
|
|
EFI_RUNTIME_SERVICES_DATA, 1, &dmi_addr);
|
|
|
|
if (ret != EFI_SUCCESS) {
|
|
/* Could not find space in lowmem, use highmem instead */
|
|
ret = efi_allocate_pages(EFI_ALLOCATE_ANY_PAGES,
|
|
EFI_RUNTIME_SERVICES_DATA, 1,
|
|
&dmi_addr);
|
|
|
|
if (ret != EFI_SUCCESS)
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Generate SMBIOS tables - we know that efi_allocate_pages() returns
|
|
* a 4k-aligned address, so it is safe to assume that
|
|
* write_smbios_table() will write the table at that address.
|
|
*/
|
|
assert(!(dmi_addr & 0xf));
|
|
dmi = (void *)(uintptr_t)dmi_addr;
|
|
if (write_smbios_table(map_to_sysmem(dmi)))
|
|
/* Install SMBIOS information as configuration table */
|
|
return efi_install_configuration_table(&smbios_guid, dmi);
|
|
efi_free_pages(dmi_addr, 1);
|
|
log_err("Cannot create SMBIOS table\n");
|
|
return EFI_SUCCESS;
|
|
}
|