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https://github.com/smaeul/u-boot.git
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53fab13a7b
U-Boot should set up the SMBIOS tables during startup, as it does on x86. Ensure that it does this correctly on non-x86 machines too, by creating an event spy for last-stage init. Tidy up the installation-condition code while we are here. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
76 lines
1.6 KiB
C
76 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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ulong addr;
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void *buf;
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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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/* Align the table to a 4KB boundary to keep EFI happy */
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buf = memalign(SZ_4K, TABLE_SIZE);
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if (!buf)
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return log_msg_ret("mem", -ENOMEM);
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addr = map_to_sysmem(buf);
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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 %lx\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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