From mboxrd@z Thu Jan 1 00:00:00 1970 From: ard.biesheuvel@linaro.org (Ard Biesheuvel) Date: Wed, 2 Jul 2014 12:34:37 +0200 Subject: [PATCH resend] arm64: dmi: Add SMBIOS/DMI support Message-ID: <1404297277-28295-1-git-send-email-ard.biesheuvel@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Yi Li SMbios is important for server hardware vendors. It implements a spec for providing descriptive information about the platform. Things like serial numbers, physical layout of the ports, build configuration data, and the like. This has been tested by dmidecode and lshw tools. Signed-off-by: Yi Li [ardb: whitespace, commit log tweaks] Signed-off-by: Ard Biesheuvel --- Resending on behalf of Yi. Please consider for 3.17. Regards, Ard. arch/arm64/Kconfig | 10 ++++++++++ arch/arm64/include/asm/dmi.h | 28 ++++++++++++++++++++++++++++ arch/arm64/kernel/setup.c | 2 ++ 3 files changed, 40 insertions(+) create mode 100644 arch/arm64/include/asm/dmi.h diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index a474de346be6..560996c4a172 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -307,6 +307,16 @@ config EFI allow the kernel to be booted as an EFI application. This is only useful on systems that have UEFI firmware. +config DMI + bool "Enable support for SMBIOS (DMI) tables" + depends on EFI + default y + help + This enables SMBIOS/DMI feature for systems. + + This option is only useful on systems that have UEFI firmware. + However, even with this option, the resultant kernel should + continue to boot on existing non-UEFI platforms. endmenu menu "Userspace binary formats" diff --git a/arch/arm64/include/asm/dmi.h b/arch/arm64/include/asm/dmi.h new file mode 100644 index 000000000000..b8758f46fb42 --- /dev/null +++ b/arch/arm64/include/asm/dmi.h @@ -0,0 +1,28 @@ +/* + * arch/arm64/include/asm/dmi.h + * + * Copyright (C) 2013 Linaro Limited. + * Written by: Yi Li (yi.li at linaro.org) + * + * based on arch/ia64/include/asm/dmi.h + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + + +#ifndef _ASM_DMI_H +#define _ASM_DMI_H 1 + +#include +#include + +/* Use efi mappings for DMI */ +#define dmi_early_remap(x, l) efi_lookup_mapped_addr(x) +#define dmi_early_unmap(x, l) +#define dmi_remap(x, l) efi_lookup_mapped_addr(x) +#define dmi_unmap(x) +#define dmi_alloc(l) kzalloc(l, GFP_ATOMIC) + +#endif diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 46d1125571f6..4075e46282b1 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include @@ -413,6 +414,7 @@ void __init setup_arch(char **cmdline_p) static int __init arm64_device_init(void) { of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + dmi_scan_machine(); return 0; } arch_initcall_sync(arm64_device_init); -- 1.8.3.2