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Instead of selecting EFI and EFI_VARS automatically when GSMI is enabled let that portion of the driver be conditionally compiled if EFI and EFI_VARS are enabled. This allows the rest of the driver (specifically event log) to be used if EFI_VARS is not enabled. To test: 1) verify that EFI_VARS is not automatically selected when CONFIG_GOOGLE_GSMI is enabled 2) verify that the kernel boots on Link and that GSMI event log is still available and functional 3) specifically boot the kernel on Alex to ensure it does not try to load efivars and that gsmi also does not load because it is not in the supported DMI table Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Olof Johansson <olofj@chromium.org> Signed-off-by: Benson Leung <bleung@chromium.org> Signed-off-by: Ben Zhang <benzh@chromium.org> Signed-off-by: Filipe Brandenburger <filbranden@chromium.org> Signed-off-by: Furquan Shaikh <furquan@google.com> Tested-by: Furquan Shaikh <furquan@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> [zwisler: update changelog for upstream] Signed-off-by: Ross Zwisler <zwisler@google.com> Reviewed-by: Guenter Roeck <groeck@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
77 lines
2.3 KiB
Plaintext
77 lines
2.3 KiB
Plaintext
menuconfig GOOGLE_FIRMWARE
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bool "Google Firmware Drivers"
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default n
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help
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These firmware drivers are used by Google's servers. They are
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only useful if you are working directly on one of their
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proprietary servers. If in doubt, say "N".
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if GOOGLE_FIRMWARE
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config GOOGLE_SMI
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tristate "SMI interface for Google platforms"
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depends on X86 && ACPI && DMI
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help
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Say Y here if you want to enable SMI callbacks for Google
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platforms. This provides an interface for writing to and
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clearing the event log. If EFI_VARS is also enabled this
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driver provides an interface for reading and writing NVRAM
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variables.
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config GOOGLE_COREBOOT_TABLE
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tristate "Coreboot Table Access"
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depends on ACPI || OF
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help
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This option enables the coreboot_table module, which provides other
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firmware modules access to the coreboot table. The coreboot table
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pointer is accessed through the ACPI "GOOGCB00" object or the
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device tree node /firmware/coreboot.
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If unsure say N.
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config GOOGLE_COREBOOT_TABLE_ACPI
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tristate
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select GOOGLE_COREBOOT_TABLE
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config GOOGLE_COREBOOT_TABLE_OF
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tristate
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select GOOGLE_COREBOOT_TABLE
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config GOOGLE_MEMCONSOLE
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tristate
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depends on GOOGLE_MEMCONSOLE_X86_LEGACY || GOOGLE_MEMCONSOLE_COREBOOT
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config GOOGLE_MEMCONSOLE_X86_LEGACY
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tristate "Firmware Memory Console - X86 Legacy support"
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depends on X86 && ACPI && DMI
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select GOOGLE_MEMCONSOLE
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help
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This option enables the kernel to search for a firmware log in
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the EBDA on Google servers. If found, this log is exported to
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userland in the file /sys/firmware/log.
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config GOOGLE_FRAMEBUFFER_COREBOOT
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tristate "Coreboot Framebuffer"
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depends on FB_SIMPLE
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depends on GOOGLE_COREBOOT_TABLE
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help
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This option enables the kernel to search for a framebuffer in
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the coreboot table. If found, it is registered with simplefb.
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config GOOGLE_MEMCONSOLE_COREBOOT
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tristate "Firmware Memory Console"
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depends on GOOGLE_COREBOOT_TABLE
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select GOOGLE_MEMCONSOLE
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help
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This option enables the kernel to search for a firmware log in
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the coreboot table. If found, this log is exported to userland
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in the file /sys/firmware/log.
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config GOOGLE_VPD
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tristate "Vital Product Data"
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depends on GOOGLE_COREBOOT_TABLE
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help
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This option enables the kernel to expose the content of Google VPD
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under /sys/firmware/vpd.
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endif # GOOGLE_FIRMWARE
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