On Tue, 26 Nov 2013 00:44:26 +0800, Yi Li yi.li@linaro.org wrote:
Add smbios/dmi support on arm32 system, it depends on EFI boot.
Signed-off-by: Yi Li yi.li@linaro.org
Acked-by: Grant Likely grant.likely@linaro.org
efi_lookup_mapped_addr() isn't able to translate the address range which is reported as reserved type from UEFI. Following the UEFI spec 2.4, it descripts the SMBIOS data should be runtime service type. So it depends on a UEFI patch to convert reserved type to runtime service type for SMBIOS and a linux dmi driver patch that has been posted for review to x86 and ia64.
arch/arm/Kconfig | 13 +++++++++++++ arch/arm/include/asm/dmi.h | 28 ++++++++++++++++++++++++++++ arch/arm/kernel/setup.c | 2 ++ 3 files changed, 43 insertions(+) create mode 100644 arch/arm/include/asm/dmi.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 11367a4..623c8c5 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1910,6 +1910,17 @@ config EFI_STUB executed directly by EFI firmware. See Documentation/efi-stub.txt for more information. +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 shouldcontinue to boot on existing non-UEFI platforms.config SECCOMP bool prompt "Enable seccomp to safely compute untrusted bytecode" @@ -2348,6 +2359,8 @@ source "net/Kconfig" source "drivers/Kconfig" +source "drivers/firmware/Kconfig"
source "fs/Kconfig" source "arch/arm/Kconfig.debug" diff --git a/arch/arm/include/asm/dmi.h b/arch/arm/include/asm/dmi.h new file mode 100644 index 0000000..428f32e --- /dev/null +++ b/arch/arm/include/asm/dmi.h @@ -0,0 +1,28 @@ +/*
- arch/arm/include/asm/dmi.h
- Copyright (C) 2013 Linaro Limited.
- Written by: Yi Li (yi.li@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 <linux/slab.h> +#include <asm/io.h>
+/* Use normal IO 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/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 0bde4e3..c9999ce 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -34,6 +34,7 @@ #ifdef CONFIG_ACPI #include <linux/acpi.h> #endif +#include <linux/dmi.h> #include <asm/unified.h> #include <asm/cp15.h> @@ -771,6 +772,7 @@ static int __init customize_machine(void) of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); #endif
- dmi_scan_machine(); return 0;
} arch_initcall(customize_machine); -- 1.7.9.5