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https://github.com/AsahiLinux/u-boot
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89cb3a9f0a
We currently use an outdated format 32-bit format for SMBIOS tables. So we must allocate SMBIOS tables below 4 GiB. Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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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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#define LOG_CATEGORY LOGC_EFI
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#include <common.h>
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#include <efi_loader.h>
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#include <log.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <smbios.h>
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#include <linux/sizes.h>
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enum {
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TABLE_SIZE = SZ_4K,
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};
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/*
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* Install the SMBIOS table as a configuration table.
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*
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* Return: status code
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*/
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efi_status_t efi_smbios_register(void)
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{
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ulong addr;
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efi_status_t ret;
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addr = gd->arch.smbios_start;
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if (!addr) {
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log_err("No SMBIOS tables to install\n");
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return EFI_NOT_FOUND;
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}
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/* Mark space used for tables */
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ret = efi_add_memory_map(addr, TABLE_SIZE, EFI_RUNTIME_SERVICES_DATA);
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if (ret)
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return ret;
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log_debug("EFI using SMBIOS tables at %lx\n", addr);
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/* Install SMBIOS information as configuration table */
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return efi_install_configuration_table(&smbios_guid,
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map_sysmem(addr, 0));
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}
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static int install_smbios_table(void)
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{
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u64 addr;
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efi_status_t ret;
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if (!IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLE) || IS_ENABLED(CONFIG_X86))
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return 0;
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addr = SZ_4G;
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ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
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EFI_RUNTIME_SERVICES_DATA,
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efi_size_in_pages(TABLE_SIZE), &addr);
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if (ret != EFI_SUCCESS)
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return log_msg_ret("mem", -ENOMEM);
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addr = map_to_sysmem((void *)(uintptr_t)addr);
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if (!write_smbios_table(addr)) {
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log_err("Failed to write SMBIOS table\n");
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return log_msg_ret("smbios", -EINVAL);
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}
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/* Make a note of where we put it */
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log_debug("SMBIOS tables written to %llx\n", addr);
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gd->arch.smbios_start = addr;
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return 0;
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}
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EVENT_SPY_SIMPLE(EVT_LAST_STAGE_INIT, install_smbios_table);
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